Derry Weather & Climate: Best Time to Visit
Derry, Donegal County, Ireland, has a moderate seasonal temperature range, with July reaching 19°C (66°F) and February cooling to 9°C (48°F).
Rainfall is high, totalling around 1150 mm (45 in) per year. August is the wettest month and March the driest. The most sunshine falls in May, with an average of 6.8 hours of daily sunshine.
Monthly Temperature in Derry
In Derry, seasonal changes bring about a moderate variation in temperatures. Average maximum daytime temperatures range from a pleasant 19°C (66°F) in July, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like February.
At night, you can expect temperatures ranging from 12°C (54°F) in July to around 3°C (37°F) during February.Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Derry
Derry is known for its substantial rainfall, with annual precipitation reaching 1150 mm (45 in). Year-round, Derry has a balanced climate with minimal variation in precipitation. The difference between the wettest month, August, with 107 mm (4.2 in), and the driest month, March, with 85 mm (3.3 in), is minimal. For more details, please visit our Derry Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Derry
Seasonal changes in sunshine hours are quite dramatic in Derry. While May receives considerable daily sunshine with up to 6.8 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.3 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Derry 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Derry
During June, July, August and September, Derry experiences its most favorable weather, with temperatures between 17°C (63°F) and 19°C (66°F). These mild conditions make it an excellent time for a visit.The weather does bring rainfall during this period, between 88 mm (3.5 in) and 107 mm (4.2 in). Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
