The temperatures in Coleraine in August are usually low and can range between 12°C and 16°C.
You can expect rain for roughly half of the month of August in Coleraine. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Coleraine in August 2025.
If you’re planning to visit Coleraine in the near future, we highly recommend that you review the 14 day weather forecast for Coleraine before you arrive.
Temperatures
16° / 12°
Rainy Days
10
Snowy Days
0
Dry Days
21
Rainfall
142
mm
Sun Hours
3.0
Hrs
