Tønsberg Weather in September

What's the weather like in Tønsberg (Vestfold county) in September 2024?

The climate in Tønsberg during September can be summarized as mild and a little damp.

September is in the fall / autumn in Tønsberg and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 15°C (60°F), whilst at night 8°C (47°F) is normal.

Tønsberg weather averages (imperial / metric)
Daytime temperature 15.3°C 59.5°F
Nightly temperature 8.1°C 46.6°F
Average temperature 11.7°C 53.1°F
Daily sunshine 5.1 hrs
Avg rainfall 90 mm 3.5 ins
Rainy days 15 days
Sea temperature 15.2°C 59.3°F
Humidity 77%
Windspeed 18kph 11 mph

On average September is the 2nd wettest month of the year in Tønsberg with around 90mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.1 hours of sunshine per day.

September temperatures in Tønsberg

Tønsberg average temperature in September

September rainfall

Tønsberg average rain in September

September hourly sunshine

Tønsberg 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 Tønsberg in September 2024.

Other monthly averages

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Tønsberg weather stats

Tønsberg weather statistics
Hottest month: July 20.5°C 68.9°F
Driest month: February 40mm 1.6ins
Sunniest month: June 9.8hrs
Coldest month: February -0°C 32°F
Wettest month: October 101mm 4ins
Map showing location of Tønsberg (59.26754, 10.40762) Tønsberg map pin © Google

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