Hanko Weather in September

What's the weather like in Hanko (Southern Finland Province) in September 2022?

The climate in Hanko during September can be summarized as mild and reasonably dry.

September is in the fall / autumn in Hanko and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 14°C (57°F), whilst at night 9°C (48°F) is normal.

Hanko weather averages (imperial / metric)
Daytime temperature 13.9°C 56.9°F
Nightly temperature 8.9°C 47.9°F
Average temperature 11.4°C 52.4°F
Daily sunshine 4.6 hrs
Avg rainfall 64 mm 2.5 ins
Rainy days 16 days
Sea temperature 14.6°C 58.2°F
Humidity 83%
Windspeed 17.5kph 11 mph

On average September is the 2nd wettest month of the year in Hanko with around 64mm 2.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.6 hours of sunshine per day.

September temperatures in Hanko

Hanko average temperature in September

September rainfall

Hanko average rain in September

September hourly sunshine

Hanko 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 Hanko in September 2022.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Hanko weather stats

Hanko weather statistics
Hottest month: July 19.4°C 66.9°F
Driest month: February 24mm 0.9ins
Sunniest month: June 10.4hrs
Coldest month: February -2.8°C 27°F
Wettest month: August 69mm 2.7ins
Map showing location of Hanko (59.83333, 22.95)

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