September weather forecastForus, Norway
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Forus, Norway, with an average temperature varying between 12.1°C (53.8°F) and 14.3°C (57.7°F).Temperature
The average high-temperature during September registers at a mild 14.3°C (57.7°F), closely corresponding to the preceding month. Throughout September, Forus's nights experience a slight temperature dip to a cool 12.1°C (53.8°F).Humidity
The average relative humidity in September is 79%.Rainfall
In September, in Forus, the rain falls for 19.3 days. Throughout September, 112mm (4.41") of precipitation is accumulated. Throughout the year, there are 210.6 rainfall days, and 1013mm (39.88") of precipitation is accumulated.Snowfall
In Forus, Norway, snow does not fall in May through October.Daylight
The average length of the day in September in Forus is 12h and 49min.On the first day of the month, sunrise is at 06:36 and sunset at 20:37. On the last day of September, sunrise is at 07:40 and sunset at 19:12 CEST.
Sunshine
In September, the average sunshine is 6.6h.UV index
In September, the average daily maximum UV index in Forus is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 3 during September leads to these instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Forus, Norway
- Average high temperature in September: 14.3°C
The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (3.7°C).
- Average low temperature in September: 12.1°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).
Average pressure in September
Forus, Norway
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is May (1015mbar).
The month with the lowest atmospheric pressure is December (1006.7mbar).
Average wind speed in September
Forus, Norway
- Average wind speed in September: 20.7km/h
The windiest month (with the highest average wind speed) is January (27.4km/h).
The calmest months (with the lowest average wind speed) are June and July (17.2km/h).
Average humidity in September
Forus, Norway
- Average humidity in September: 79%
The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in September
Forus, Norway
- Average rainfall in September: 112mm
The wettest month (with the highest rainfall) is December (130mm).
The driest month (with the least rainfall) is June (43mm).
Average rainfall days in September
Forus, Norway
- Average rainfall days in September: 19.3 days
The month with the highest number of rainy days is December (21.5 days).
The month with the least rainy days is June (13.3 days).
Average snowfall in September
Forus, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is March (30mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Forus, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Forus, Norway
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 18min).
The month with the shortest days is December (Average daylight: 6h and 24min).
- Average sunshine in September: 6h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).
Average sunshine days in September
Forus, Norway
- Average sunshine days in September: 9.3 days
The month with the most sunshine days is June (14.4 days).
The month with the least sunshine days is December (5.8 days).
Average UV index in September
Forus, Norway
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Forus, Norway
- Average cloud cover in September: 53
The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is May (Cloud cover 44).
Average visibility in September
Forus, Norway
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July and August (10km).
The months with the lowest visibility are January, February, March, September, October, November and December (9km).





