Click on a day for an hourly weather forecast
The temperatures in Finland in August are comfortable with low of 15°C and and high up to 19°C.
You can expect about 3 to 8 days of rain in Finland 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 Finland in August 2025.
If you’re planning to visit Finland in the near future, we highly recommend that you review the 14 day weather forecast for Finland before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -5° | 4 | 8 | 19 | 60 mm | Awful | Finland in January |
| February | -2° / -5° | 4 | 7 | 17 | 51 mm | Awful | Finland in February |
| March | 1° / -3° | 7 | 10 | 15 | 46 mm | Awful | Finland in March |
| April | 5° / 2° | 6 | 18 | 6 | 42 mm | Awful | Finland in April |
| May | 11° / 7° | 5 | 25 | 1 | 60 mm | Ok | Finland in May |
| June | 16° / 12° | 6 | 24 | 0 | 83 mm | Good | Finland in June |
| July | 20° / 16° | 6 | 25 | 0 | 106 mm | Good | Finland in July |
| August | 19° / 15° | 7 | 24 | 0 | 135 mm | Ok | Finland in August |
| September | 15° / 12° | 6 | 24 | 0 | 91 mm | Good | Finland in September |
| October | 9° / 6° | 8 | 20 | 3 | 90 mm | Awful | Finland in October |
| November | 5° / 3° | 7 | 18 | 5 | 76 mm | Awful | Finland in November |
| December | 1° / -1° | 7 | 11 | 14 | 72 mm | Awful | Finland in December |