Ilomantsi Weather in August

What's the weather like in Ilomantsi (Eastern Finland Province) in August 2025?

The climate in Ilomantsi during August can be summarized as mild and a little damp.

August is in the summer in Ilomantsi and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 18°C (65°F), whilst at night 9°C (49°F) is normal.

Ilomantsi weather averages (imperial / metric)
Daytime temperature 18.1°C 64.6°F
Nightly temperature 9.3°C 48.7°F
Average temperature 13.7°C 56.7°F
Daily sunshine 7.1 hrs
Avg rainfall 87 mm 3.4 ins
Rainy days 17 days
Sea temperature 13°C 55.5°F
Humidity 78%
Windspeed 10.4kph 7 mph

On average August is the wettest month of the year in Ilomantsi with around 87mm 3.4 inches of rain making it a a little damp 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 7.1 hours of sunshine per day.

August temperatures in Ilomantsi

Ilomantsi average temperature in August

August rainfall

Ilomantsi average rain in August

August hourly sunshine

Ilomantsi average rain in August

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 Ilomantsi in August 2025.

Other monthly averages

Best places to visit in August

UV index Best time to go?

Ilomantsi weather stats

Ilomantsi weather statistics
Hottest month: July 20.6°C 69.1°F
Driest month: February 29mm 1.1ins
Sunniest month: July 4.6hrs
Coldest month: January -9°C 15.8°F
Wettest month: August 87mm 3.4ins
Map showing location of Ilomantsi (62.67162, 30.93276) Ilomantsi map pin © Google

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