The temperatures in Kouvola in August are usually low and can range between 12°C and 20°C.
You can expect about 3 to 8 days of rain in Kouvola 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 Kouvola in August 2026.
If you’re planning to visit Kouvola in the near future, we highly recommend that you review the 14 day weather forecast for Kouvola before you arrive.
Temperatures
20° / 12°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
89
mm
Sun Hours
9.8
Hrs
