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Castletown, Isle of Man
Castletown · Isle of Man
Castletown is a small town in Castletown, Isle of Man with a population of 3,100. Elevation: 43 ft (13 m). Average temperature: 48°F (9°C).
Data updated June 2026
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About Castletown
Castletown Geoghegan is a village in County Westmeath, Ireland, and lies south west of Lough Ennell near the county town of Mullingar. It is around 13 km south-west of Mullingar and 19 km north of Tullamore. Castletown was the seat of the Geoghegan family of the medieval Barony of Moycashel in County Westmeath.
People
Climate
| Population | 3,100 |
| Population Density | 3,483 / sq mi |
| Elevation | 43 ft (13 m) |
| Coordinates | 54.0745°, -4.6537° |
| Timezone | Europe/Isle_of_Man |
| Country | 🇮🇲 Isle of Man |
| State / Province | Castletown |
| Average Temperature | 48°F (9°C) |
| January Average | 41°F (5°C) |
| July Average | 58°F (14°C) |
| Annual Precipitation | 36.7 inches (933 mm) |
| Annual Snowfall | 0.0 inches (0 cm) |
About Castletown
Castletown is a small town in Isle of Man (Castletown) with a population of 3,100. The city sits at an elevation of 43 feet (13 meters) above sea level. The average annual temperature is 48°F (9°C). Temperatures range from 41°F in January to 58°F in July. Annual precipitation averages 36.7 inches. The timezone is Europe/Isle_of_Man.
Temperature
| Annual Average | 48.4°F |
| 10% below Isle of Man avg | |
| January Average | 41°F (5°C) |
| July Average | 58°F (14°C) |
| Sunny Days | 269 days/yr |
Geography
| Elevation | 43 ft (13 m) |
| Area | 0.9 sq mi (2.3 km²) |
| Population Density | 3,483/sq mi |
| Coordinates | 54.0745°N, 4.6537°W |
| Timezone | Europe/Isle_of_Man |
Precipitation & Snow
Air Quality
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 3.7 in | |
| February | 41°F (5°C) | 2.8 in | Coldest |
| March | 43°F (6°C) | 2.9 in | |
| April | 45°F (7°C) | 2.4 in | |
| May | 50°F (10°C) | 2.2 in | Driest |
| June | 54°F (12°C) | 2.3 in | |
| July | 58°F (14°C) | 2.2 in | Warmest |
| August | 58°F (14°C) | 3.0 in | |
| September | 55°F (13°C) | 3.2 in | |
| October | 50°F (10°C) | 4.0 in | |
| November | 45°F (7°C) | 4.1 in | Wettest |
| December | 42°F (6°C) | 3.9 in |
Castletown has a seasonal temperature swing of 17°F / from 41°F in February to 58°F in July. Total annual precipitation is 36.7 inches, with November being the wettest month (4.1") and May the driest (2.2").
Schools in Castletown
4 public schools (NCES 2022-23 data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| Castle Rushen High School | - | - | - | - |
| Victoria Road Primary School | - | - | - | - |
| The Buchan School | - | - | - | - |
| King William's College | - | - | - | - |
Radio Stations near Castletown
2 stations within ~55 km.
| Station | Genre | Quality | |
|---|---|---|---|
| EnergyFM | - | MP3 256 kbps | |
| Manx Radio AM (GB) | top 40 | MP3 128 kbps |
Museums in Castletown
| Name | Type | Address | Phone | Annual Revenue |
|---|---|---|---|---|
| Castle Rushen | ||||
| Foxdale Heritage Centre | ||||
| House of Manannan | ||||
| Isle of Man Railway Museum | ||||
| Knockaloe Internment Camp & Patrick Visitor Centre | ||||
| M.E.R. Museum | ||||
| Manx Aviation and Military Museum | ||||
| Manx Museum | ||||
| Manx Transport Heritage Museum | ||||
| Murray's Motorcycle Museum | ||||
| Museum of the Manx Regiment | ||||
| National Folk Museum | ||||
| Old Grammar School | ||||
| Old House of Keys | ||||
| Rushen Abbey | ||||
| Rushen Abbey Visitor Centre | ||||
| The Leece Museum | ||||
| The Nautical Museum | ||||
| The Old Vicarage |
Libraries in Castletown
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| Family Library | 0.0 | |||||
| George Herdman Library | 0.0 | |||||
| Henry Bloom Noble Library | 0.0 | |||||
| The Harvey Briggs Onchan Library | 0.0 | |||||
| Tynwald Library | 0.0 | |||||
| Ward Public Library | 0.0 |
Farmers Markets in Castletown
| Name | Address | Season | Hours | Organic | Website |
|---|---|---|---|---|---|
| The Market Hall |
Hotels in Castletown
1 hotels within city radius - OpenStreetMap data
Restaurants in Castletown
7 restaurants within city radius - OpenStreetMap data
Cafes in Castletown
4 cafes within city radius - OpenStreetMap data
Monuments in Castletown
2 monuments within city radius - OpenStreetMap data
Castles in Castletown
1 castles within city radius - OpenStreetMap data
Dentists in Castletown
1 dentists within city radius - OpenStreetMap data
Veterinaries in Castletown
1 veterinaries within city radius - OpenStreetMap data
Train Stations in Castletown
1 train stations within city radius - OpenStreetMap data
Gas Stations in Castletown
2 gas stations within city radius - OpenStreetMap data
Banks in Castletown
1 banks within city radius - OpenStreetMap data
Gyms in Castletown
2 gyms within city radius - OpenStreetMap data
Golf Courses in Castletown
1 golf courses within city radius - OpenStreetMap data
Breweries in Castletown
| Name | Type | Address | Phone | Website |
|---|---|---|---|---|
| Apple Orphanage | ||||
| Bottle Monkey Brew Co | ||||
| Bushys Brewery | ||||
| Hooded Ram Brewery Co. | ||||
| Kerroo Brewing Company |
Airports Near Castletown
4 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| Isle of Man Airport | IOM | Large Airport |
| Andreas Airfield | - | Small Airport |
| Andreas-Ballavoddan House Airstrip | - | Small Airport |
| Mount Rule Farm Airstrip | - | Small Airport |
Churches & Religious Organizations in Castletown
4 religious organizations (IRS tax-exempt data).
| Name | Address |
|---|---|
| Castletown Methodist Church | |
| King William's College Chapel | |
| Saint Mary's Roman Catholic Church | |
| Saint Mary’s on the Harbour |
Quick Facts
🇮🇲 About Isle of Man
Public Holidays in Isle of Man
10 public holidays this year
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Get ReportFrequently Asked Questions About Castletown
What is the population of Castletown?
Castletown has a population of 3,100 residents and is located in Isle of Man. The population density is 3,483 people per square mile, spread across 0.9 square miles.
What is the weather like in Castletown?
Castletown has a four-season climate with an average annual temperature of 48°F (9°C). Winter temperatures average 41°F in January, while summers reach an average of 58°F in July. The area receives 269 sunny days per year, well above the national average of 205. Annual rainfall totals 36.7 inches.