The temperatures in Calais in August are comfortable with low of 16°C and and high up to 19°C.
You can expect about 3 to 8 days of rain in Calais 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 Calais in August 2026.
If you’re planning to visit Calais in the near future, we highly recommend that you review the 14 day weather forecast for Calais before you arrive.
Temperatures
19° / 16°
Rainy Days
5
Snowy Days
0
Dry Days
26
Rainfall
98
mm
Sun Hours
10.2
Hrs
