Derry, United Kingdom Climate by Month
Derry, Northern Ireland, United Kingdom
Cool summers and cool winters, with rain spread through the year.
Derry has cool summers and cool winters, with rain spread through the year. Afternoon highs range from 46°F (8°C) in January to 64°F (18°C) in July, and February nights average 37°F (3°C). About 61 in (1539 mm) of rain falls in a typical year, with no clear rainy season. The air is humid, averaging 84% relative humidity.
- Warmest month
- 64°F(18°C)
- Average high, July
- Coldest nights
- 37°F(3°C)
- Average low, February
- Rain per year
- 61 in(1539 mm)
- No clear rainy season
- Humidity
- 84%
- Sunniest: June
Best and worst months in Derry
Best for weatherJune to August are the best time for weather in Derry: highs near 63°F (17°C) and about 4.7 in (119 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 46°F (8°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Derry weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 46°F(8°C) | 37°F(3°C) | 5.8 in(147 mm) | 90% | 0.5 |
| FebFebruary | 46°F(8°C) | 37°F(3°C) | 5.0 in(126 mm) | 89% | 1.2 |
| MarMarch | 49°F(10°C) | 39°F(4°C) | 4.2 in(106 mm) | 81% | 2.1 |
| AprApril | 53°F(12°C) | 42°F(5°C) | 3.6 in(91 mm) | 81% | 3.6 |
| MayMay | 58°F(14°C) | 46°F(8°C) | 3.3 in(83 mm) | 76% | 4.7 |
| JunJuneBest | 62°F(16°C) | 50°F(10°C) | 4.2 in(106 mm) | 79% | 4.8 |
| JulJulyBest | 64°F(18°C) | 53°F(12°C) | 4.8 in(121 mm) | 83% | 4.4 |
| AugAugustBest | 64°F(18°C) | 54°F(12°C) | 5.1 in(130 mm) | 83% | 3.5 |
| SepSeptember | 61°F(16°C) | 50°F(10°C) | 4.9 in(125 mm) | 86% | 2.6 |
| OctOctober | 55°F(13°C) | 46°F(8°C) | 6.1 in(156 mm) | 88% | 1.4 |
| NovNovember | 50°F(10°C) | 42°F(5°C) | 6.9 in(176 mm) | 86% | 0.7 |
| DecDecember | 46°F(8°C) | 38°F(3°C) | 6.8 in(172 mm) | 89% | 0.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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