The weather in Falmouth in August is very hot. The average temperatures are between 26°C and 30°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of August in Falmouth. 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 Falmouth in August 2025.
If you’re planning to visit Falmouth in the near future, we highly recommend that you review the 14 day weather forecast for Falmouth before you arrive.
Temperatures
30° / 26°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
108
mm
Sun Hours
11.3
Hrs
