September weather forecastPrestfoss, Norway
September
Weather in September
The first month of the autumn, September, is still a cool month in Prestfoss, Norway, with an average temperature varying between 4.4°C (39.9°F) and 12°C (53.6°F).Temperature
In September, the average high-temperature marginally drops from a refreshing 15.8°C (60.4°F) in August to a fresh 12°C (53.6°F). Throughout the September nights, Prestfoss encounters a low-temperature of 4.4°C (39.9°F).Humidity
In Prestfoss, the average relative humidity in September is 81%.Rainfall
In September, the rain falls for 10.5 days. Throughout September, 34mm (1.34") of precipitation is accumulated. In Prestfoss, during the entire year, the rain falls for 96.1 days and collects up to 404mm (15.91") of precipitation.Snowfall
Months with snowfall are January through July, September through December. September is the first month it typically snows in Prestfoss. Throughout September, in the average 1.7 snowfall days, it receives 57mm (2.24") of snow. Throughout the year, there are 106.2 snowfall days, and 1565mm (61.61") of snow is accumulated.Daylight
In September, the average length of the day is 12h and 52min.On the first day of September, sunrise is at 06:17 and sunset at 20:24. On the last day of the month, sunrise is at 07:25 and sunset at 18:56 CEST.
Sunshine
The average sunshine in September in Prestfoss is 7.5h.UV index
In Prestfoss, the average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 2 in September transforms into the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Prestfoss, Norway
- Average high temperature in September: 12°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (-5°C).
- Average low temperature in September: 4.4°C
The month with the highest average low temperature is July (8.6°C).
The coldest month (with the lowest average low temperature) is January (-10.3°C).
Average pressure in September
Prestfoss, Norway
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is April (1014.7mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in September
Prestfoss, Norway
- Average wind speed in September: 9.1km/h
The windiest month (with the highest average wind speed) is December (9.5km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).
Average humidity in September
Prestfoss, Norway
- Average humidity in September: 81%
The months with the highest relative humidity are January, February and March (91%).
The month with the lowest relative humidity is June (71%).
Average rainfall in September
Prestfoss, Norway
- Average rainfall in September: 34mm
The wettest months (with the highest rainfall) are June and July (51mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Prestfoss, Norway
- Average rainfall days in September: 10.5 days
The months with the highest number of rainy days are July and August (17.6 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in September
Prestfoss, Norway
- Average snowfall in September: 57mm
The month with the highest snowfall is November (283mm).
The month with the least snowfall is August (0mm).
Average snowfall days in September
Prestfoss, Norway
- Average snowfall days in September: 1.7 days
The month with the highest number of snowfall days is January (15.8 days).
The month with the least snowfall days is August (0 days).
Average daylight in September /
Average sunshine in September
Prestfoss, Norway
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Prestfoss, Norway
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is July (11.1 days).
Average UV index in September
Prestfoss, Norway
- Average UV index in September: 2
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February and October (UV index 1).
Average cloud cover in September
Prestfoss, Norway
- Average cloud cover in September: 49
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is June (Cloud cover 46).
Average visibility in September
Prestfoss, Norway
- Average visibility in September: 8km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January, February, March, October, November and December (7km).
