September weather forecastHermansverk, Norway
September
Weather in September
The first month of the autumn, September, is still a chilly month in Hermansverk, Norway, with an average temperature ranging between max 9.5°C (49.1°F) and min 3.7°C (38.7°F).Temperature
With September's onset, the weather reveals a slight temperature decrease, transitioning from a moderate 13.9°C (57°F) in August to a frosty 9.5°C (49.1°F). During the September nights, an average temperature of 3.7°C (38.7°F) is observed in Hermansverk.Humidity
In Hermansverk, the average relative humidity in September is 84%.Rainfall
In September, the rain falls for 19.4 days. Throughout September, 104mm (4.09") of precipitation is accumulated. Throughout the year, in Hermansverk, there are 202.5 rainfall days, and 1175mm (46.26") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 54min.On the first day of September, sunrise is at 06:25 and sunset at 20:39. On the last day of the month, sunrise is at 07:37 and sunset at 19:06 CEST.
Sunshine
The average sunshine in September in Hermansverk, Norway, is 6.2h.UV index
In Hermansverk, the average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 2 in September leads to these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hermansverk, Norway
- Average high temperature in September: 9.5°C
The warmest month (with the highest average high temperature) is July (15.5°C).
The month with the lowest average high temperature is January (-5.6°C).
- Average low temperature in September: 3.7°C
The month with the highest average low temperature is July (7.3°C).
The coldest month (with the lowest average low temperature) is January (-11.4°C).
Average pressure in September
Hermansverk, Norway
- Average pressure in September: 1011.8mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1006.1mbar).
Average wind speed in September
Hermansverk, Norway
- Average wind speed in September: 9.6km/h
The windiest month (with the highest average wind speed) is January (11km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).
Average humidity in September
Hermansverk, Norway
- Average humidity in September: 84%
The months with the highest relative humidity are March and December (93%).
The month with the lowest relative humidity is June (75%).
Average rainfall in September
Hermansverk, Norway
- Average rainfall in September: 104mm
The wettest month (with the highest rainfall) is December (153mm).
The driest month (with the least rainfall) is April (62mm).
Average rainfall days in September
Hermansverk, Norway
- Average rainfall days in September: 19.4 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is February (11.3 days).
Average snowfall in September
Hermansverk, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (437mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Hermansverk, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hermansverk, Norway
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 12min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in September: 6h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 12min).
Average sunshine days in September
Hermansverk, Norway
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is April (11.6 days).
The month with the least sunshine days is December (7 days).
Average UV index in September
Hermansverk, Norway
- Average UV index in September: 2
The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Hermansverk, Norway
- Average cloud cover in September: 60
The month with the most cloud cover is March (Cloud cover 71).
The month with the least cloud cover is June (Cloud cover 53).
Average visibility in September
Hermansverk, Norway
- Average visibility in September: 8km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are January, February, March and December (6km).





