Stenungsund Weather in September
What's the weather like in Stenungsund (Västra Götaland) in September 2025?
The climate in Stenungsund during September can be summarized as mild and a little damp.
September is in the fall / autumn in Stenungsund and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 16°C (60°F), whilst at night 9°C (48°F) is normal.
| Daytime temperature | 15.6°C 60°F |
|---|---|
| Nightly temperature | 9.1°C 48.3°F |
| Average temperature | 12.3°C 54.1°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 82 mm 3.2 ins |
| Rainy days | 13 days |
| Sea temperature | 15.1°C 59.2°F |
| Humidity | 82% |
| Windspeed | 21.2kph 13 mph |
On average September is the 3rd wettest month of the year in Stenungsund with around 82mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
September temperatures in Stenungsund
September rainfall
September hourly sunshine
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 Stenungsund in September 2025.
Other monthly averages
Best places to visit in September
Stenungsund weather stats
| Hottest month: | July | 20.1°C 68.2°F |
|---|---|---|
| Driest month: | February | 40mm 1.6ins |
| Sunniest month: | June | 9.4hrs |
| Coldest month: | January | 0.4°C 32.7°F |
| Wettest month: | October | 90mm 3.5ins |
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