The temperatures in Porvoo in May are quite cold with temperatures between 7°C and 14°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Porvoo during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Porvoo can expect a few days of snow in May.
Our weather forecast can give you a great sense of what weather to expect in Porvoo in May 2025.
If you’re planning to visit Porvoo in the near future, we highly recommend that you review the 14 day weather forecast for Porvoo before you arrive.
Temperatures
14° / 7°
Rainy Days
4
Snowy Days
1
Dry Days
26
Rainfall
39
mm
Sun Hours
9.4
Hrs
