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Londonderry Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Londonderry.
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Climate overview of Londonderry
Temperatures in Londonderry, Londonderry County, United Kingdom, shift moderately through the seasons. The warmest month is July at 19°C (66°F), and the coolest is January at 9°C (48°F).
The city has a wet climate, receiving around 1155 mm (45 in) of rainfall per year. Despite the high annual total, it has pleasant summers and cold winters. August is the wettest month. Sunshine peaks in May, when the city sees around 6.8 hours of sunshine per day.
Londonderry Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Londonderry - and find the best time to visit.
Monthly Temperature in Londonderry
In Londonderry, seasonal changes bring about a moderate variation in temperatures. On average, daytime temperatures range from a pleasant 19°C (66°F) in July to a chilly 9°C (48°F) in January.
Nighttime temperatures range from 12°C (54°F) in July to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Londonderry
Londonderry has a notably wet climate with abundant precipitation, recording 1155 mm (45 in) of rainfall per year. The wettest period in Londonderry occurs in August, which receives around 108 mm (4.3 in) of precipitation. During the driest month, March, Londonderry experiences moderate rainfall, totaling 86 mm (3.4 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Londonderry 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 Londonderry
In Londonderry, summer days are longer and more sunny, with daily sunshine hours peaking at 6.8 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Londonderry
The most favourable weather available in Londonderry usually occurs in May, July, August, September and October. Conditions are generally most challenging in January, February and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
cold
Mar
mixed
Apr
mixed
May
good
Jun
mixed
Jul
good
Aug
good
Sep
good
Oct
good
Nov
mixed
Dec
wet
- Best overall: May, July, August, September and October
- Warmest weather: June, July and August
- Most sunshine: May
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Londonderry
What is the best time to visit Londonderry?
May, July, August, September and October typically offer the most optimal weather in Londonderry. In contrast, January, February and December tend to have less optimal conditions. Londonderry has pleasant summers and cold winters.
What temperatures can I expect in Londonderry?
Daytime highs range from 9°C (48°F) in January to 19°C (66°F) in July. Nighttime lows range from 3°C (37°F) to 12°C (54°F).
How much rain does Londonderry get?
Annual rainfall is around 1155 mm (45 in). August is the wettest month with 108 mm (4.3 in), while March is the driest with 86 mm (3.4 in).
How sunny is Londonderry?
Londonderry receives around 1,342 hours of sunshine per year. May is the sunniest month with 203 hours, while December is the cloudiest with just 39 hours.
Londonderry 3-Day Forecast
Londonderry on the map
Londonderry is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
London
16°C (61°F) Bath15°C (59°F) Torquay16°C (61°F) Manchester14°C (57°F) York15°C (59°F) Blackpool
15°C (59°F) Edinburgh13°C (55°F) Glasgow14°C (57°F) Bucket list
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