The temperatures in Weymouth in August are usually low and can range between 14°C and 17°C.
You can expect about 3 to 8 days of rain in Weymouth 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 Weymouth in August 2025.
If you’re planning to visit Weymouth in the near future, we highly recommend that you review the 14 day weather forecast for Weymouth before you arrive.
Temperatures
17° / 14°
Rainy Days
5
Snowy Days
0
Dry Days
26
Rainfall
74
mm
Sun Hours
9.6
Hrs
