The temperatures in Roscoff in August are usually low and can range between 13°C and 20°C.
You can expect about 3 to 8 days of rain in Roscoff 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 Roscoff in August 2026.
If you’re planning to visit Roscoff in the near future, we highly recommend that you review the 14 day weather forecast for Roscoff before you arrive.
Temperatures
20° / 13°
Rainy Days
5
Snowy Days
0
Dry Days
26
Rainfall
98
mm
Sun Hours
8.9
Hrs
