Naantali Weather in September

What's the weather like in Naantali (Province of Western Finland) in September 2024?

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

September is in the fall / autumn in Naantali and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 14°C (58°F), whilst at night 8°C (45°F) is normal.

Naantali weather averages (imperial / metric)
Daytime temperature 14.2°C 57.5°F
Nightly temperature 7.5°C 45.4°F
Average temperature 10.8°C 51.4°F
Daily sunshine 4.9 hrs
Avg rainfall 67 mm 2.6 ins
Rainy days 18 days
Sea temperature 14.2°C 57.6°F
Humidity 83%
Windspeed 15.1kph 9 mph

On average September is the 4th wettest month of the year in Naantali with around 67mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.9 hours of sunshine per day.

September temperatures in Naantali

Naantali average temperature in September

September rainfall

Naantali average rain in September

September hourly sunshine

Naantali 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 Naantali in September 2024.

Other monthly averages

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UV index Best time to go?

Naantali weather stats

Naantali weather statistics
Hottest month: July 20.5°C 68.9°F
Driest month: February 29mm 1.1ins
Sunniest month: June 11.1hrs
Coldest month: February -2.8°C 27°F
Wettest month: August 81mm 3.2ins
Map showing location of Naantali (60.46744, 22.02428) Naantali map pin © Google

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