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The temperatures in Western Finland in May are quite cold with temperatures between 6°C and 13°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Western Finland 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 Western Finland can expect a few days of snow in May.
Our weather forecast can give you a great sense of what weather to expect in Western Finland in May 2025.
If you’re planning to visit Western Finland in the near future, we highly recommend that you review the 14 day weather forecast for Western Finland before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -6° | 6 | 7 | 18 | 66 mm | Awful | Western Finland in January |
| February | -2° / -6° | 5 | 6 | 18 | 52 mm | Awful | Western Finland in February |
| March | 1° / -3° | 6 | 9 | 15 | 51 mm | Awful | Western Finland in March |
| April | 7° / 1° | 6 | 18 | 6 | 41 mm | Bad | Western Finland in April |
| May | 13° / 6° | 5 | 25 | 1 | 61 mm | Ok | Western Finland in May |
| June | 17° / 10° | 6 | 24 | 0 | 63 mm | Good | Western Finland in June |
| July | 21° / 14° | 6 | 25 | 0 | 89 mm | Good | Western Finland in July |
| August | 20° / 14° | 5 | 26 | 0 | 94 mm | Good | Western Finland in August |
| September | 15° / 10° | 5 | 25 | 0 | 76 mm | Good | Western Finland in September |
| October | 9° / 5° | 7 | 21 | 3 | 83 mm | Awful | Western Finland in October |
| November | 5° / 2° | 7 | 17 | 6 | 71 mm | Awful | Western Finland in November |
| December | 1° / -2° | 8 | 9 | 14 | 80 mm | Awful | Western Finland in December |
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