Coleraine Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Coleraine.
Climate overview of Coleraine
Coleraine, Antrim County, United Kingdom, experiences moderate temperature changes through the seasons. August is the warmest month with daytime highs of 17°C (63°F), while January is the coolest at 9°C (48°F).
Rainfall is high, totalling around 1283 mm (51 in) per year. November is the wettest month and May the driest. Sunshine peaks in May, when the city sees around 6.8 hours of sunshine per day.
Coleraine Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Coleraine - and find the best time to visit.
Monthly Temperature in Coleraine
The weather in Coleraine changes moderately throughout the year, offering enough variation to appreciate each season. Average maximum daytime temperatures range from a moderate 17°C (63°F) in August, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like January.
At night, you can expect temperatures ranging from 13°C (55°F) in August to around 4°C (39°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Coleraine
Coleraine has a relatively rainy climate with high precipitation levels, averaging 1283 mm (51 in) of rainfall annually. While rainfall varies throughout the year, each season offers its own charm. November brings wetter days averaging 134 mm (5.3 in) of precipitation, spread over 22 rainy days.
In contrast, the driest month May experiences a drier climate, with about 80 mm (3.1 in) of rainfall spread across 17 rainy days. For more details, please visit our Coleraine 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 Coleraine
Seasonal changes in sunshine hours are quite dramatic in Coleraine. 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
Best Time to Visit Coleraine
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June
- Warmest weather: July, August and September
- Most sunshine: May
Frequently asked questions about the climate in Coleraine
What is the best time to visit Coleraine?
June typically offers the most optimal weather in Coleraine. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Coleraine?
Daytime highs range from 9°C (48°F) in January to 17°C (63°F) in August. Nighttime lows range from 4°C (39°F) to 13°C (55°F).
How much rain does Coleraine get?
Annual rainfall is around 1283 mm (51 in). November is the wettest month with 134 mm (5.3 in), while May is the driest with 80 mm (3.1 in).
How sunny is Coleraine?
Coleraine 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.
Coleraine 3-Day Forecast
Coleraine on the map
Coleraine is highlighted - select any city to see its climate.
Popular this month
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