The temperatures in Londonderry in August are usually low and can range between 11°C and 19°C.
You can expect about 3 to 8 days of rain in Londonderry during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Londonderry in August 2025.
If you’re planning to visit Londonderry in the near future, we highly recommend that you review the 14 day weather forecast for Londonderry before you arrive.
Temperatures
19° / 11°
Rainy Days
4
Snowy Days
0
Dry Days
27
Rainfall
55
mm
Sun Hours
9.1
Hrs
