Kälviä Weather in September

What's the weather like in Kälviä (Province of Western Finland) in September 2025?

The climate in Kälviä during September can be summarized as cool and reasonably dry.

September is in the fall / autumn in Kälviä and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 5°C (40°F) is normal.

Kälviä weather averages (imperial / metric)
Daytime temperature 12.4°C 54.3°F
Nightly temperature 4.6°C 40.3°F
Average temperature 8.5°C 47.3°F
Daily sunshine 4.2 hrs
Avg rainfall 62 mm 2.4 ins
Rainy days 17 days
Sea temperature 12°C 53.6°F
Humidity 84%
Windspeed 14.4kph 9 mph

On average September is the 3rd wettest month of the year in Kälviä with around 62mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.2 hours of sunshine per day.

September temperatures in Kälviä

Kälviä average temperature in September

September rainfall

Kälviä average rain in September

September hourly sunshine

Kälviä average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Kälviä in September 2025.

Other monthly averages

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UV index Best time to go?

Kälviä weather stats

Kälviä weather statistics
Hottest month: July 20.2°C 68.4°F
Driest month: February 22mm 0.9ins
Sunniest month: June 0hrs
Coldest month: January -6.4°C 20.5°F
Wettest month: August 69mm 2.7ins
Map showing location of Kälviä (63.86067, 23.45289) Kälviä map pin © Google

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