Derry weather
UK towns · Northern Ireland · 55.00°N 7.31°W
Derry, in Northern Ireland, has its warmest weather in August, when daytime temperatures average 17.8°C, while January nights are the coldest at around 3.2°C. The town sees roughly 1246mm of rain a year; October is normally the wettest month and April the driest. Figures are averaged from 2020–2024 observations.
Climate averages
| Month | Avg high | Avg low | Rain | Rain days |
|---|---|---|---|---|
| Jan | 7.4° | 3.2° | 95mm | 15 |
| Feb | 8.3° | 3.8° | 124mm | 20 |
| Mar | 9.5° | 3.7° | 89mm | 17 |
| Apr | 11.7° | 4.8° | 76mm | 15 |
| May | 14.6° | 8° | 84mm | 17 |
| Jun | 16.8° | 10.5° | 93mm | 17 |
| Jul | 17.5° | 11.7° | 115mm | 20 |
| Aug | 17.8° | 12° | 118mm | 20 |
| Sep | 16.4° | 10.7° | 101mm | 17 |
| Oct | 13.2° | 8.7° | 131mm | 20 |
| Nov | 10.3° | 6° | 93mm | 17 |
| Dec | 7.8° | 4° | 127mm | 18 |
Derry weather FAQs
What is the warmest month in Derry?
August is typically the warmest month in Derry, with average daytime highs of 17.8°C. Summer afternoons (June–August) average around 17.4°C.
What is the wettest month in Derry?
October is usually the wettest month, with around 131mm of rain over roughly 20 rainy days. April is typically the driest (76mm).
How much does it rain in Derry per year?
Derry receives roughly 1246mm of precipitation per year, spread over about 213 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in Derry?
Winter nights (December–February) in Derry average around 3.7°C, with January typically the coldest month (average low 3.2°C).