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Weather & Climate in Derry, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Derry experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 40°F in January while summers reach 58°F in July / relatively mild seasonal variation. The area gets 224 sunny days per year, above the national average. Annual precipitation totals 61.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 79 feet.
Temperature
40°F Jan (4°C)
58°F Jul (14°C)
| Annual Average | 48.2°F |
| 11% below US avg | |
| January Average | 40°F (4°C) |
| July Average | 58°F (14°C) |
| Sunny Days | 224 days/yr |
Geography
| Elevation | 79 ft (24 m) |
| Area | 149.4 sq mi (387.0 km²) |
| Population Density | 560/sq mi |
| Coordinates | 54.9981°N, 7.3093°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.5.
| May 3, 1998 | Scotland, United Kingdom | M3.5 | 143 km | 15 km |
| Jan 26, 1990 | 34 km N of Isle of Islay, United Kingdom | M3.0 | 138 km | 10 km |
| Aug 27, 1992 | 33 km NNE of Isle of Islay, United Kingdom | M2.7 | 143 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (4°C) | 6.2 in | Coldest |
| February | 40°F (5°C) | 4.6 in | |
| March | 43°F (6°C) | 4.9 in | |
| April | 46°F (8°C) | 3.7 in | |
| May | 50°F (10°C) | 3.4 in | Driest |
| June | 54°F (12°C) | 3.8 in | |
| July | 58°F (14°C) | 4.1 in | Warmest |
| August | 58°F (14°C) | 5.0 in | |
| September | 54°F (12°C) | 5.6 in | |
| October | 50°F (10°C) | 6.5 in | |
| November | 44°F (7°C) | 6.9 in | Wettest |
| December | 41°F (5°C) | 6.9 in |
Derry has a seasonal temperature swing of 18°F / from 40°F in January to 58°F in July. Total annual precipitation is 61.5 inches, with November being the wettest month (6.9") and May the driest (3.4").