Granvin Weather in September
What's the weather like in Granvin (Hordaland) in September 2025?
The climate in Granvin during September can be summarized as cool and very wet.
September is in the fall / autumn in Granvin and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 9°C (49°F), whilst at night 4°C (39°F) is normal.
| Daytime temperature | 9.4°C 48.8°F |
|---|---|
| Nightly temperature | 4.1°C 39.3°F |
| Average temperature | 6.7°C 44.1°F |
| Daily sunshine | 3.9 hrs |
| Avg rainfall | 203 mm 8 ins |
| Rainy days | 24 days |
| Sea temperature | 13.7°C 56.6°F |
| Humidity | 79% |
| Windspeed | 17.3kph 11 mph |
On average September is the wettest month of the year in Granvin with around 203mm 8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 24 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.9 hours of sunshine per day.
September temperatures in Granvin
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 Granvin in September 2025.
Other monthly averages
Best places to visit in September
Granvin weather stats
| Hottest month: | July | 14.2°C 57.6°F |
|---|---|---|
| Driest month: | April | 52mm 2ins |
| Sunniest month: | May | 7.8hrs |
| Coldest month: | January | -3.8°C 25.2°F |
| Wettest month: | September | 203mm 8ins |
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