A narrow waterway with boats, surrounded by greenery and buildings.

Find hotels in Castleknock from AED 333

  • Change your mind

    Book hotels with free cancellation
  • Treat yourself

    Sign in to save 10% or more on thousands of hotels
    Sign in
  • Be picky

    Search almost a million properties worldwide

Check prices for these dates

Tonight
19 Aug - 20 Aug
Tomorrow
20 Aug - 21 Aug
This weekend
21 Aug - 23 Aug
Next weekend
28 Aug - 30 Aug

Filter by

Star rating

Guest rating

Our top choices for Castleknock hotels

Breakfast included
Reserve now, pay later
Hotel
Budget
Pool

1. Castleknock Hotel

Castleknock Hotel
Diswellstown
United Kingdom
Mark
AED 656
AED 744 total
includes taxes & fees
13 Sep - 14 Sep
Castleknock Hotel

2. Crowne Plaza Hotel Blanchardstown by IHG

Crowne Plaza Hotel Blanchardstown by IHG
Dublin
United States
James
AED 592
AED 672 total
includes taxes & fees
6 Sep - 7 Sep
Crowne Plaza Hotel Blanchardstown by IHG

3. Clayton Hotel Liffey Valley

Clayton Hotel Liffey Valley
Dublin
United Kingdom
Avril
AED 463
AED 526 total
includes taxes & fees
3 Sep - 4 Sep
Clayton Hotel Liffey Valley

4. Aspect Hotel Dublin Park West

Aspect Hotel Dublin Park West
Dublin
United States
maria
AED 491
AED 557 total
includes taxes & fees
23 Aug - 24 Aug
Aspect Hotel Dublin Park West

5. Carlton Hotel Blanchardstown

Carlton Hotel Blanchardstown
Dublin
United Kingdom
James
AED 559
AED 635 total
includes taxes & fees
20 Aug - 21 Aug
Carlton Hotel Blanchardstown

6. Ashling Hotel Dublin

Ashling Hotel Dublin
City Centre Dublin
Canada
Natasha
AED 604
AED 685 total
includes taxes & fees
24 Aug - 25 Aug
Ashling Hotel Dublin

7. easyHotel Dublin City Centre

easyHotel Dublin City Centre
City Centre Dublin
United States
Terrence
AED 350
AED 398 total
includes taxes & fees
31 Aug - 1 Sep
easyHotel Dublin City Centre

8. Maldron Hotel Smithfield Dublin City

Maldron Hotel Smithfield Dublin City
City Centre Dublin
United Kingdom
HARBLAS
AED 494
AED 560 total
includes taxes & fees
31 Aug - 1 Sep
Maldron Hotel Smithfield Dublin City

9. Point A Dublin The Liberties

Point A Dublin The Liberties
City Centre Dublin
Mexico
Dinorah
AED 516
AED 586 total
includes taxes & fees
26 Aug - 27 Aug
Point A Dublin The Liberties

10. Staycity Aparthotels, Dublin, Tivoli

Staycity Aparthotels, Dublin, Tivoli
City Centre Dublin
United States
Samir
AED 536
AED 609 total
includes taxes & fees
31 Aug - 1 Sep
Staycity Aparthotels, Dublin, Tivoli

11. Ruby Molly Hotel Dublin by IHG

Ruby Molly Hotel Dublin by IHG
City Centre Dublin
United States
Michael
AED 622
AED 706 total
includes taxes & fees
31 Aug - 1 Sep
Ruby Molly Hotel Dublin by IHG

12. The Belvedere Hotel Parnell Square

The Belvedere Hotel Parnell Square
City Centre Dublin
Canada
Debbie
AED 465
AED 527 total
includes taxes & fees
31 Aug - 1 Sep
The Belvedere Hotel Parnell Square

13. Dublin One Hotel

Dublin One Hotel
City Centre Dublin
United States
Jason
AED 293
AED 333 total
includes taxes & fees
31 Aug - 1 Sep
Dublin One Hotel

14. Handel's Hotel

Handel's Hotel
City Centre Dublin
United Kingdom
Georgia
AED 596
AED 676 total
includes taxes & fees
24 Aug - 25 Aug
Handel's Hotel

15. Harding Hotel

Harding Hotel
City Centre Dublin
United States
Kathleen
AED 483
AED 549 total
includes taxes & fees
24 Aug - 25 Aug
Harding Hotel

16. Hotel St. George by Nina

Hotel St. George by Nina
City Centre Dublin
Canada
michelle
AED 360
AED 408 total
includes taxes & fees
31 Aug - 1 Sep
Hotel St. George by Nina

17. The Louis Fitzgerald Hotel

The Louis Fitzgerald Hotel
Clondalkin
United Kingdom
Alan
AED 539
AED 611 total
includes taxes & fees
23 Aug - 24 Aug
The Louis Fitzgerald Hotel

18. Maldron Hotel Parnell Square Dublin City

Maldron Hotel Parnell Square Dublin City
City Centre Dublin
Canada
Tess
AED 407
AED 462 total
includes taxes & fees
31 Aug - 1 Sep
Maldron Hotel Parnell Square Dublin City

19. Point A Dublin Parnell Street

Point A Dublin Parnell Street
City Centre Dublin
Canada
Bonita
AED 398
AED 452 total
includes taxes & fees
31 Aug - 1 Sep
Point A Dublin Parnell Street

20. Staycity Aparthotels, Dublin, City Centre

Staycity Aparthotels, Dublin, City Centre
City Centre Dublin
United Kingdom
Nazila
AED 573
AED 651 total
includes taxes & fees
31 Aug - 1 Sep
Staycity Aparthotels, Dublin, City Centre
View all properties
Save an average of 15% on thousands of hotels when you're signed in

Stay near popular Castleknock attractions

Castleknock Castle

9.0/10 (9 reviews)
Find out about the history of Castleknock when you spend time at Castleknock Castle. Attend a sporting event or simply enjoy the lively bars while you're in the area.
See properties

Farmleigh House

6.0/10 (2 reviews)
Farmleigh House is just one of the places to see in Castleknock, so why not enjoy the other things to explore during your travels? Attend a sporting event or simply enjoy the top-notch restaurants while you're in the area.
See properties

Elmgreen Golf Course

7.4/10 (3 reviews)
Enjoy a round of golf in Castleknock at Elmgreen Golf Course. Attend a sporting event or simply enjoy the lively bars while you're in the area.
See properties

Learn more about Castleknock

This leafy Dublin suburb offers peaceful walks through Phoenix Park where wild deer roam freely among historic monuments. Explore the nearby village center with its charming pubs and cafes, or visit the impressive Farmleigh House for weekend markets and cultural events.

See all hotels in Castleknock
A tall stone monument with a broad base and steps leading up to it, surrounded by a grassy field and trees under a partly cloudy sky.

Top Castleknock Hotel Reviews

Maldron Hotel Dublin Airport

Maldron Hotel Dublin Airport

10/10 Excellent
"We only stayed overnight, because we had an early flight in the morning, but over all experienced is worth it. Staff are nice and helpful. Rooms are designed for a well slept ambiance. I will definite stay again. Very handy going to the airport especially if you have big luggaes, shuttle bus are provided."
Mary Ann 1-night trip
Posted 2 hours ago
Maldron Hotel Dublin Airport
Clayton Hotel Burlington Road

Clayton Hotel Burlington Road

10/10 Excellent
"Love this place , great stuff and close to downtown"
Luis 3-night trip
Posted 6 hours ago
Clayton Hotel Burlington Road
The Hendrick Smithfield

The Hendrick Smithfield

10/10 Excellent
"Walkable area near city center. Excellent hotel!"
Arlene 3-night trip
Posted 6 hours ago
The Hendrick Smithfield
Clayton Hotel Dublin Airport Central

Clayton Hotel Dublin Airport Central

10/10 Excellent
"Staff was lovely"
Martin 1-night trip
Posted 7 hours ago
Clayton Hotel Dublin Airport Central
easyHotel Dublin City Centre

easyHotel Dublin City Centre

8/10 Good
"The Easy Hotel has the basics and nothing more. The room was clean but very small. It was fine for our couple nights and close to many restaurants/pubs and amenities."
Christie 2-night trip
Posted 12 hours ago
easyHotel Dublin City Centre
Ruby Molly Hotel Dublin by IHG

Ruby Molly Hotel Dublin by IHG

8/10 Good
"We loved this hotel-well located and very friendly and welcoming. Eclectic furnishings and a casual vibe. Very attentive staff. Would definitely recommend!"
Ellen 2-night trip
Posted 16 hours ago
Ruby Molly Hotel Dublin by IHG
Ashling Hotel Dublin

Ashling Hotel Dublin

10/10 Excellent
"Location was absolutely perfect!"
Natasha 1-night trip
Posted 17 hours ago
Ashling Hotel Dublin
Point A Dublin Parnell Street

Point A Dublin Parnell Street

8/10 Good
"Overall great location and spot."
Troy 6-night trip
Posted 19 hours ago
Point A Dublin Parnell Street
Maldron Hotel Croke Park

Maldron Hotel Croke Park

10/10 Excellent
"Overall, we had a very good stay! The hotel has been recently refurbished and is next to Croke Park. The staff were very friendly. Arrived late, so did not have breakfast in the hotel."
Gerardo Moran 1-night trip
Posted 22 hours ago
Maldron Hotel Croke Park

More cheap stays in Castleknock

The Camden Hotel

The Camden Hotel

84 - 87 Lower Camden Street Dublin Dublin
AED 380
AED 431 total
31 Aug - 1 Sep
includes taxes & fees
6.8/10 (805 reviews)
The Camden Hotel
Temple Bar Townhouse

Temple Bar Townhouse

23-24 Eustace St Dublin Dublin
AED 403
AED 457 total
24 Aug - 25 Aug
includes taxes & fees
Temple Bar Townhouse
Clink i Lár

Clink i Lár

35-36 Abbey Street Upper. Dublin1 Dublin
AED 419
AED 475 total
13 Sep - 14 Sep
includes taxes & fees
8.6/10 Excellent! (1,332 reviews)
Clink i Lár
Latroupe Jacobs Inn

Latroupe Jacobs Inn

21-28 Talbot Place Dublin Dublin
AED 425
AED 483 total
24 Aug - 25 Aug
includes taxes & fees
Latroupe Jacobs Inn
Generator Dublin

Generator Dublin

Smithfield Square Dublin Dublin
AED 480
AED 544 total
31 Aug - 1 Sep
includes taxes & fees
Generator Dublin
Binary Hub

Binary Hub

Bonham Street Dublin Dublin
Get rates
7.6/10 Good! (156 reviews)
Binary Hub

Find out more about Castleknock

Top reasons to visit Castleknock

  • Family-Friendly Activities: Castleknock offers a variety of activities suitable for families, including recreation parks and local golf courses.
  • Outdoor Adventures: Enjoy leisurely picnics in picturesque parks and explore vibrant neighborhoods.
  • Cultural Immersion: Discover charming streets, historic cathedrals, and the impressive Castleknock Castle.
  • Unique Experiences: Challenge yourself at the incognito escape room or embark on exciting day trips.
  • Welcoming Atmosphere: Experience a friendly vibe perfect for romantic getaways and budget-friendly excursions.

Find great hotels near Castleknock

Discover the perfect blend of comfort and hospitality in Castleknock, Dublin, with a variety of lodging options including hotels and guesthouses. Whether you're traveling for business, family, or seeking an LGBTQIA-friendly experience, you'll find accommodations that cater to your needs. Explore top-rated hotels, read reviews, and enjoy a memorable stay in this charming area of Dublin.

  • Academy Plaza Hotel: Ideal for business travelers, the Academy Plaza Hotel combines comfort with convenience. Located just 6.4km from Castleknock, this 3-star property offers well-appointed rooms equipped with modern amenities such as free Wi-Fi, a work desk, and a flat-screen TV. Guests can enjoy on-site dining at the hotel’s restaurant, which serves a variety of international cuisine, along with a cozy bar perfect for unwinding after a long day. Its strategic location makes it easy to access Dublin’s key business districts and tourist attractions.
  • Holiday Inn Express Dublin City Centre by IHG: This 3.5-star hotel caters to both business and leisure travelers, with a welcoming atmosphere for the LGBTQIA community. Situated 6.4km from Castleknock, the Holiday Inn Express boasts contemporary guest rooms featuring complimentary breakfast, free Wi-Fi, and a comfortable work area. The hotel is affiliated with LGBTQI travel guides, ensuring inclusivity and support for all guests. Its central location allows easy access to Dublin’s vibrant city life, shops, and cultural sites.
  • Leonardo Hotel Dublin Christchurch: For eco-conscious travelers, the Leonardo Hotel Dublin Christchurch stands out as a 4-star eco-certified accommodation option. Located 6.4km from Castleknock, it offers a sustainable stay with features like energy-efficient lighting, recycling programs, and locally sourced food in its restaurant. Guests appreciate the modern design of the rooms and the hotel's commitment to environmental sustainability. Its proximity to historical landmarks and attractions makes it a perfect choice for those wanting to explore Dublin while minimizing their carbon footprint.

Where to stay in Castleknock

Castleknock offers a delightful blend of family-friendly charm and outdoor adventures, making it an ideal vacation spot. Visitors can enjoy relaxing picnics in picturesque parks or explore the vibrant nearby neighborhoods. With its close proximity to Dublin's bustling city life, travelers will find a friendly atmosphere perfect for both romantic getaways and budget-friendly excursions. Don't miss the chance to experience the serene beauty and welcoming vibe of this lovely village and its surroundings.

  • Dublin: As the capital city of Ireland, Dublin is a vibrant metropolis that offers a rich blend of history, culture, and modernity. Located in close proximity to Castleknock, it is a hub for family-friendly activities and cultural experiences. Visitors can explore iconic landmarks such as Trinity College, the Guinness Storehouse, and Dublin Castle. The city is well-known for its lively shopping districts, entertainment venues, and numerous parks, including St. Stephen's Green. With a diverse range of activities available year-round, Dublin promises an engaging travel experience for all.
  • City Centre Dublin: Situated just 6.4km from Castleknock, City Centre Dublin is the heart of the city and a must-visit for travelers seeking a bustling urban experience. This vibrant neighborhood is filled with shops, restaurants, and cultural attractions, making it ideal for family outings and cultural explorations. Highlights include the famous O'Connell Street, the lively Temple Bar district, and various educational institutions. The area also hosts numerous parks and sports facilities, providing a perfect blend of leisure and entertainment for visitors of all ages.
  • Diswellstown: Located only 1.6km away from Castleknock, Diswellstown is a charming suburb that offers a more laid-back atmosphere for those looking to unwind. Known for its outdoor activities and family-friendly amenities, visitors can enjoy recreational parks and golf courses. The proximity to urban parks and a theme park makes it an excellent choice for fun-filled family days. Diswellstown allows travelers to experience the tranquility of suburban life while still being close to the excitement of Dublin, making it a delightful stop on your journey.

Things to do near Castleknock

Castleknock offers a delightful mix of family-friendly activities and outdoor adventures, perfect for a city-themed vacation. Enjoy leisurely days at the recreation park or challenge yourself at the local golf course. For a unique experience, try the incognito escape room or embark on exciting day trips. Don't miss out on city sightseeing opportunities that promise a memorable stay in this charming area of Dublin.

Shopping

In Castleknock, you can shop at Blanchardstown Shopping Centre, just 1.6km away, or head to Liffey Valley Shopping Centre, located 3.2km away, both offering a lively atmosphere. If you're up for a drive, check out the Brown Thomas Flagship Store, 8.0km from Castleknock.

Recreation

At Croke Park, immerse yourself in the energetic atmosphere of a vibrant sports stadium, just 8.0km from Castleknock. Enjoy exhilarating events and activities. Alternatively, unwind at Luttrellstown Castle Golf, a serene golf course 4.8km away, perfect for both relaxation and outdoor fun.

Adventure

Experience the thrill of ziplining at Clara Lara Fun Park, located 8.0km from Castleknock, where outdoor adventure awaits. For climbing enthusiasts, Awesome Walls Climbing Centre is only 4.8km away, offering exciting challenges in a vibrant sports atmosphere. For a high-speed experience, head to Mondello Park, 29.0km away, for exhilarating motor racing.

Nightlife

Experience the vibrant nightlife in Castleknock with a visit to the Gate Theatre or the Smock Alley Theatre for a dose of culture and romance. For family fun, head to Fort Lucan Outdoor Adventureland, where adventure awaits just a short drive away.

*Distances are measured in a straight line; actual driving distances may vary depending on the route.

Booking tips and Expedia advantages for Castleknock

Castleknock provides numerous ways to save on your visit. Enjoy free attractions like Trinity College, O'Connell Street, and Phoenix Park. For transportation, consider walking or using buses and trains. The best time to visit is from December to February when hotel prices drop; aim to book about a month in advance for the best rates. Tuesdays offer the cheapest accommodation, while Saturdays are pricier. Use Expedia to find eco-friendly options and package deals that combine flights and hotels for additional savings.

  • The most and least expensive months on average to stay in a hotel: The cheapest months to stay in Castleknock are December to February, where the prices are slightly lower. This is in comparison to May to June and September, where prices are slightly higher.
  • The best time to book a hotel: The cheapest time to book a hotel in Castleknock is usually 1 month out from when you are planning to stay, though if you're late to the party, have a look at Expedia's last minute deals - the green banner below the hotel's price indicates a discounted rate.
  • The most and least expensive days on average to stay in a hotel: The least expensive day to stay in Castleknock is Tuesday. The most expensive day to stay in Castleknock is Saturday.
  • Find cheap hotels on Expedia: Utilize Expedia's search tool to refine your preferences, such as your budget, preferred location, and desired hotel type. For instance, selecting the Eco-certified filter will showcase sustainable and environmentally friendly hotels currently available. To find the best prices and deals, simply sort the price filter from lowest to highest.
  • Consider bundling your trip: You can save money by combining your hotel stay in Castleknock with your flights and activities by booking a package through Expedia.

Find the best attractions near Castleknock

Castleknock is an ideal destination for families and outdoor enthusiasts, offering a blend of cultural and city experiences. Notable attractions include charming streets, historic cathedrals, and the impressive Castleknock Castle. Visitors can explore various points of interest that cater to both cultural immersion and family fun, making it a perfect spot for a memorable vacation.

  • Trinity College: Experience the rich history and culture of Ireland at Trinity College, home to the stunning Book of Kells and beautiful architecture. Just 8.0km from Castleknock, you can stroll through its lush grounds and soak in the academic atmosphere.
  • O'Connell Street: Located 6.4km away, O'Connell Street is Dublin's bustling thoroughfare, lined with shops, cafes, and historic monuments. It captures the vibrant city vibe, making it perfect for people-watching and enjoying local cuisine.
  • Dublin Castle: Also 6.4km from Castleknock, Dublin Castle offers a glimpse into Ireland's past with its impressive architecture and lush gardens. The romantic ambiance makes it a perfect spot for exploring history and enjoying serene moments.

Best time to go to Castleknock

The best time to visit Castleknock can depend on the weather and when visitor numbers rise and fall. The hottest average temperature in Castleknock falls in July, when visitor numbers are average and weather is mostly cloudy with light rain. The coolest average temperature in Castleknock falls in January, visitor numbers are slightly high and weather is mostly cloudy with light rain.

calendarCalendar MonthtemperatureTemperaturerainPrecipitationmostlyCloudinessoccupationOccupancypricePricing
January40.5°F (4.7°C)Light RainMostly CloudySlightly HighSlightly Low
February41.2°F (5.1°C)Light RainMostly CloudyAverageSlightly Low
March42.8°F (6.0°C)Light RainMostly CloudySlightly HighAverage
April46.2°F (7.9°C)Light RainMostly CloudySlightly HighAverage
May51.1°F (10.6°C)Light RainMostly CloudyAverageSlightly High
June56.1°F (13.4°C)Light RainMostly CloudyAverageSlightly High
July59.0°F (15.0°C)Light RainMostly CloudyAverageAverage
August58.1°F (14.5°C)Light RainMostly CloudyAverageAverage
September55.0°F (12.8°C)Light RainMostly CloudyAverageSlightly High
October50.9°F (10.5°C)Light RainMostly CloudySlightly LowAverage
November45.1°F (7.3°C)Light RainMostly CloudySlightly LowAverage
December41.9°F (5.5°C)Light RainMostly CloudySlightly LowSlightly Low

The nearest major airports for your trip to Castleknock

Traveling to Castleknock, Dublin, is convenient with its proximity to Dublin Airport (DUB), located 9.7km away. Several excellent hotels near the airport include The Morrison Dublin, Curio Collection by Hilton, Anantara The Marker Dublin - A Leading Hotel of the World, and The College Green Hotel Dublin, Autograph Collection, all rated 5 stars. Each of these hotels offers transportation services to Dublin Airport, ensuring easy access for guests. Whether you're flying in for leisure or business, these accommodations provide a comfortable stay with convenient airport connections.

Frequently asked questions

What's the best place for a stay in Castleknock?
Located 6.4 mi (10.2 km) from the heart of Castleknock, Clayton Hotel Dublin Airport is a top choice for your stay based on our traveler data. Two other options for your visit to the area are Clink i Lár and Ruby Molly Hotel Dublin by IHG. See all available top hotels, or vacation rentals in Castleknock.
What are some of the best vacation rentals that Castleknock has to offer?
Burlington Townhouse: This vacation home rental outside Castleknock comes with free WiFi so you can feel at home during your trip. This vacation rental also comes with free parking to give you added peace of mind. See all vacation rentals in Castleknock.
If I need to cancel my hotel reservation in Castleknock, will I receive a refund?
Yes! Most hotel reservations are fully refundable if you cancel before the hotel's cancellation deadline, which is usually within 24-48 hours of your check-in date. If your reservation is non-refundable, it might still be possible to cancel it and receive a refund within a 24-hour period of booking. Filter your search by fully refundable to find flexible hotel deals in Castleknock.
Where can I learn more about changing or cancelling my trip to Castleknock?
For more information about picking new dates or cancelling your trip to Castleknock, go to https://www.expedia.com/service/.
What's the best place to stay for a family vacation to Castleknock?
Castleknock Hotel is a hotel with a children's pool and 2 restaurants, and it's a top choice on Expedia for families. Attractions in the area like National Aquatic Centre and Dublin Zoo are also fun for kids of all ages. Find more child-friendly accommodations in Castleknock.
What's the best pet-friendly accommodation in Castleknock?
Travelodge Dublin Phoenix Park Hotel is a top hotel for people traveling with their pets, and offers a restaurant and free WiFi for its human guests. See more pet-friendly hotel accommodations in Castleknock.
Where is the best place to stay with easy access to Castleknock Castle?
Castleknock Hotel is one of the top choices for your stay based on our traveler data, and this 4-star hotel offers a golf course and 2 restaurants. It's located just a short 1 mi (1.6 km) from Castleknock Castle. Another good choice is Deerpark Lodge, located just 0.7 mi (1.2 km) away.
What's the best place to stay if I'm looking to play golf in Castleknock?
Castleknock Hotel is a top hotel that has a golf course and features free WiFi. You can tee off at Elmgreen Golf Course during your trip. See more golf hotels in Castleknock.
What are some accommodations with pools in Castleknock?
Castleknock Hotel is a top hotel with a children's pool, an indoor pool, and 2 restaurants. View all hotels with pools in Castleknock.
What is the best spa hotel in Castleknock?
Castleknock Hotel is a top spa hotel featuring 3 bars, a golf course, a fitness center, and an indoor pool. Treat yourself to a facial, body scrub, or detox wrap at the onsite spa. See all spa hotels in Castleknock.
What is the best accommodation for staying close to Dublin Airport (DUB)?
Clayton Hotel Dublin Airport is a popular 4-star hotel featuring 2 restaurants and 2 bars. It's located a short 1.5 mi (2.4 km) from Dublin Airport. Other places to stay close to the airport are Maldron Hotel Dublin Airport and Radisson Blu Hotel, Dublin Airport.
How is it staying in Castleknock?
Families will find kid-friendly activities in Castleknock, and visitors give high marks for the top-notch restaurants. Welcoming and relaxing, this city will delight tourists with its shopping, golf courses, and cafes. Top sights around the area include Guinness Storehouse and Grafton Street. In Castleknock, there are 12 hotels and other accommodations to choose from. Find out more about Castleknock.
What should I do while I'm visiting Castleknock?
Landmarks like Castleknock Castle and Farmleigh House might be worth a visit. You'll also find Guinness Storehouse and Grafton Street in the area. Check out what more to see and do in Expedia's Castleknock guide.
What's the best way to get around Castleknock?
If you'd like to explore more of the area, ride aboard a train from Dublin Navan Road Parkway Station, Dublin Castleknock Station, or Dublin Coolmine Station. If you want to venture out around the area, you may want a rental car in Castleknock for your journey.
What's the weather like in Castleknock?
The hottest months are usually July and August with an average temp of 57°F, while the coldest months are January and February with an average of 42°F. Average annual precipitation for Castleknock is 37 inches.