Castlerock Climate by Month
Temperatures in Castlerock experience a moderate degree of variance through the seasons.
Days can be mild, while the cooler months tend
to be cold.
It also has a relatively rainy climate with high levels of precipitation.
Now, let’s explore all the climate details to give you a full picture.
Average day and night temperature
The weather in Castlerock changes moderately throughout the year, offering enough variation to appreciate each season. On average, daytime temperatures range from a moderate 17°C in August to a chilly 9°C in February. Nighttime temperatures can drop, with averages reaching 5°C in February.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Castlerock has a notably wet climate with abundant precipitation, recording 1332 mm of rainfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, November, sees around 141 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, May, still receives a respectable 81 mm of rainfall.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
In Castlerock, 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.Monthly hours of sunshine
Daily hours of sunshine
The best time of year to visit Castlerock in the United Kingdom
Other facts from our historical weather data:August has an average maximum temperature of 17°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of 9°C.
November tops the wettest month list with 141 mm of rainfall.
May is the driest month with 81 mm of precipitation.
May is the sunniest month with an average of 203 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
