Climate of Northern Ostrobothnia, Finland
Area-weighted average across Northern Ostrobothnia. For where people actually live and travel, see the cities below.
Northern Ostrobothnia, a subdivision of Finland, has a strongly continental climate on average. Area-weighted monthly temperatures across the whole territory range from -11.1°C / 12°F in January to 15.2°C / 59.4°F in July, with rainfall from 29 mm / 1.1 in to 74 mm / 2.9 in depending on the season (575 mm / 22.6 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -11.1°C12°F | 38 mm1.5″ | Snowy |
| February | -10.7°C12.7°F | 30 mm1.2″ | Snowy |
| March | -5.5°C22.1°F | 31 mm1.2″ | Snowy |
| April | -0.2°C31.6°F | 29 mm1.1″ | Snowy |
| May | 6.7°C44.1°F | 41 mm1.6″ | — |
| June | 12.7°C54.9°F | 58 mm2.3″ | — |
| July | 15.2°C59.4°F | 74 mm2.9″ | — |
| August | 12.5°C54.5°F | 72 mm2.8″ | — |
| September | 7.2°C45°F | 57 mm2.2″ | — |
| October | 1.5°C34.7°F | 53 mm2.1″ | Snowy |
| November | -4.6°C23.7°F | 50 mm2″ | Snowy |
| December | -8.7°C16.3°F | 42 mm1.7″ | Snowy |
Frequently asked questions
What is the best time to visit Northern Ostrobothnia?
Northern Ostrobothnia, Finland does not have a clear sunny-and-dry window by our cutoffs. The warmest month is July at 15.2°C / 59.4°F, and the driest is April at 29 mm / 1.1 in — likely your best travel window. For city-level detail, see the cities section below.
What is the climate of Northern Ostrobothnia?
Northern Ostrobothnia, Finland has area-weighted monthly average temperatures ranging from -11.1°C / 12°F in January to 15.2°C / 59.4°F in July. Annual rainfall averages about 575 mm / 22.6 in, with the wettest month being July (74 mm / 2.9 in) and the driest April (29 mm / 1.1 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Northern Ostrobothnia?
The hottest month in Northern Ostrobothnia is July, with an area-wide average temperature of 15.2°C / 59.4°F.
What is the coldest month in Northern Ostrobothnia?
The coldest month in Northern Ostrobothnia is January, with an area-wide average temperature of -11.1°C / 12°F.
When does it rain most in Northern Ostrobothnia?
The wettest month in Northern Ostrobothnia is July, averaging about 74 mm / 2.9 in of rainfall. The driest is April with about 29 mm / 1.1 in.