Seinäjoki Climate: Weather by Month and Best Time to Visit
Best months for Seinäjoki: July, August, June.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -3°C | -9°C | 33 mm | 9 | – | – | 3.9 |
| February | -3°C | -10°C | 26 mm | 7 | – | – | 4.2 |
| March | 2°C | -7°C | 29 mm | 8 | – | – | 4.2 |
| April | 8°C | -1°C | 35 mm | 9 | – | – | 5.4 |
| May | 14°C | 3°C | 49 mm | 11 | – | – | 6.4 |
| June | 19°C | 8°C | 72 mm | 12 | – | – | 6.9 |
| July | 21°C | 11°C | 84 mm | 13 | – | – | 7.2 |
| August | 19°C | 9°C | 74 mm | 13 | – | – | 7.0 |
| September | 14°C | 5°C | 53 mm | 10 | – | – | 6.5 |
| October | 7°C | 1°C | 54 mm | 10 | – | – | 5.1 |
| November | 2°C | -3°C | 45 mm | 10 | – | – | 4.2 |
| December | -1°C | -6°C | 40 mm | 10 | – | – | 3.7 |