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Weather & Climate in Castledermot, Ireland
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Castledermot experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 42°F in January while summers reach 60°F in July / relatively mild seasonal variation. The area gets 276 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 32.9 inches. The city sits at an elevation of 253 feet.
Temperature
42°F Jan (5°C)
60°F Jul (16°C)
| Annual Average | 50.0°F |
| 7% below US avg | |
| January Average | 42°F (5°C) |
| July Average | 60°F (16°C) |
| Sunny Days | 276 days/yr |
Geography
| Elevation | 253 ft (77 m) |
| Area | 48.2 sq mi (124.7 km²) |
| Population Density | 31/sq mi |
| Coordinates | 52.9089°N, 6.8422°W |
| Timezone | Europe/Dublin |
Precipitation & Snow
Air Quality
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| May 29, 2013 | 14 km WSW of Nefyn, United Kingdom | M3.8 | 142 km | 10 km |
| Jun 26, 2013 | 14 km WSW of Nefyn, United Kingdom | M2.8 | 142 km | 8 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 3.5 in | Coldest |
| February | 42°F (6°C) | 2.6 in | |
| March | 45°F (7°C) | 2.4 in | |
| April | 47°F (9°C) | 2.1 in | Driest |
| May | 52°F (11°C) | 2.1 in | |
| June | 57°F (14°C) | 2.2 in | |
| July | 60°F (16°C) | 2.1 in | Warmest |
| August | 60°F (16°C) | 2.8 in | |
| September | 56°F (13°C) | 3.2 in | |
| October | 51°F (11°C) | 3.2 in | |
| November | 45°F (7°C) | 3.1 in | |
| December | 43°F (6°C) | 3.5 in | Wettest |
Castledermot has a seasonal temperature swing of 19°F / from 42°F in January to 60°F in July. Total annual precipitation is 32.9 inches, with December being the wettest month (3.5") and April the driest (2.1").