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Ostrobothnia

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Ostrobothnia Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Ostrobothnia year round climate

  • Spring (March–May): Average -1.1–8.9°C, cold and humid climate, windy, relatively low rainfall, but temperatures remain low, requiring warm clothing. Common activities: Hiking (warm clothing required), birdwatching. Recommended clothing: Warm jacket, sweater, waterproof pants and jacket.
  • Summer (June–August): Average 15.2–17.1°C, mild climate, occasional rain, generally cool. Common activities: Hiking, cycling, boating, fishing. Recommended clothing: Light and breathable clothing, a light jacket for rain or cooler evenings.
  • Autumn (September–November): Average 6.8–12.9°C, cooler climate, increasing rainfall, especially in November. Common activities: Maple leaf viewing (in some areas), mushroom picking (safety precautions required), indoor activities such as visiting museums. Recommended clothing: Warm jacket, sweater, waterproof pants and jacket.
  • Winter (December–February): Average -4.1–-2.9°C, cold and dry climate, moderate snowfall. Common activities: Skiing, snowshoeing, ice fishing (depending on ice thickness). Recommended clothing: Heavy warm jacket, hat, scarf, gloves, waterproof snow boots.

Ostrobothnia climatological average

Annual average temperature: approx. 5.8°C / Annual rainfall: approx. 500 mm / Summer humidity: 60%–70% / Rainiest month: November

Ostrobothnia monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-4.1°C
44
February
-2.9°C
38.4
March
-1.1°C
33.3
April
1.7°C
39.5
May
8.9°C
12.2
June
15.2°C
19.3
July
17.1°C
50.2
August
17.1°C
59.3
September
12.9°C
46.2
October
6.8°C
59.4
November
1.1°C
63.8
December
-2.9°C
34.4

Ostrobothnia weather for the next seven days

10/10
Saturday
Patchy rain nearby
7.7°C/4.5°C
10/11
Sunday
Overcast
5.3°C/4.1°C
10/12
Monday
Overcast
5.9°C/4.8°C
10/13
Tuesday
Overcast
6.7°C/4.7°C
10/14
Wednesday
Light drizzle
9.5°C/6.3°C
10/15
Thursday
Overcast
10.4°C/9.1°C
10/16
Friday
Overcast
10.6°C/10.1°C