The temperatures in Mariehamn in May are quite cold with temperatures between 6°C and 8°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Mariehamn 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 Mariehamn can expect a few days of snow in May.
Our weather forecast can give you a great sense of what weather to expect in Mariehamn in May 2024.
If you’re planning to visit Mariehamn in the near future, we highly recommend that you review the 14 day weather forecast for Mariehamn before you arrive.
Temperatures
8° / 6°
Rainy Days
4
Snowy Days
1
Dry Days
26
Rainfall
44
mm
Sun Hours
9.5
Hrs