Climate of Southern Ostrobothnia, Finland
Area-weighted average across Southern Ostrobothnia. For where people actually live and travel, see the cities below.
Southern Ostrobothnia, a subdivision of Finland, has a seasonal climate on average. Area-weighted monthly temperatures across the whole territory range from -8.1°C / 17.4°F in February to 15.5°C / 59.9°F in July, with rainfall from 26 mm / 1 in to 77 mm / 3 in depending on the season (577 mm / 22.7 in total across the year).
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -7.4°C18.7°F | 37 mm1.5″ | Snowy |
| February | -8.1°C17.4°F | 26 mm1″ | Snowy |
| March | -3.7°C25.3°F | 30 mm1.2″ | Snowy |
| April | 1.7°C35.1°F | 31 mm1.2″ | Snowy |
| May | 8.3°C46.9°F | 34 mm1.3″ | — |
| June | 13.4°C56.1°F | 57 mm2.2″ | — |
| July | 15.5°C59.9°F | 77 mm3″ | — |
| August | 13.5°C56.3°F | 71 mm2.8″ | — |
| September | 8.4°C47.1°F | 63 mm2.5″ | — |
| October | 3.5°C38.3°F | 55 mm2.2″ | — |
| November | -1.7°C28.9°F | 53 mm2.1″ | Snowy |
| December | -5.6°C21.9°F | 43 mm1.7″ | Snowy |
Frequently asked questions
What is the best time to visit Southern Ostrobothnia?
Southern Ostrobothnia, Finland does not have a clear sunny-and-dry window by our cutoffs. The warmest month is July at 15.5°C / 59.9°F, and the driest is February at 26 mm / 1 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Southern Ostrobothnia?
Southern Ostrobothnia, Finland has area-weighted monthly average temperatures ranging from -8.1°C / 17.4°F in February to 15.5°C / 59.9°F in July. Annual rainfall averages about 577 mm / 22.7 in, with the wettest month being July (77 mm / 3 in) and the driest February (26 mm / 1 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Southern Ostrobothnia?
The hottest month in Southern Ostrobothnia is July, with an area-wide average temperature of 15.5°C / 59.9°F.
What is the coldest month in Southern Ostrobothnia?
The coldest month in Southern Ostrobothnia is February, with an area-wide average temperature of -8.1°C / 17.4°F.
When does it rain most in Southern Ostrobothnia?
The wettest month in Southern Ostrobothnia is July, averaging about 77 mm / 3 in of rainfall. The driest is February with about 26 mm / 1 in.