September weather forecastKnappskog, Norway
September
Weather in September
The first month of the autumn, September, is still a mild month in Knappskog, Norway, with temperature in the range of an average high of 14°C (57.2°F) and an average low of 11.1°C (52°F).Temperature
Knappskog, Norway, records an average high-temperature of a still refreshing 14°C (57.2°F) as September arrives, nearly mirroring the previous month's climate. In Knappskog, the nighttime temperature shows a slight difference from the daytime high, averaging to a fresh 11.1°C (52°F) during September.Humidity
The average relative humidity in September in Knappskog is 79%.Rainfall
In Knappskog, in September, during 21.7 rainfall days, 150mm (5.91") of precipitation is typically accumulated. In Knappskog, during the entire year, the rain falls for 226.5 days and collects up to 1565mm (61.61") of precipitation.Snowfall
In Knappskog, snow does not fall in June through September.Sea temperature
In Knappskog, in September, the average water temperature is 14.7°C (58.5°F).Note: Dipping into 14.7°C (58.5°F) below 10°C (50°F) needs protective wear, or you'd face cold shock and breathing issues swiftly. Meanwhile, a slight swim around 13°C (55.4°F) feels cold to the bone.
Daylight
The average length of the day in September in Knappskog, Norway, is 12h and 52min.On the first day of September in Knappskog, Norway, sunrise is at 06:35 and sunset at 20:44. On the last day of the month, sunrise is at 07:44 and sunset at 19:14 CEST.
Sunshine
In Knappskog, the average sunshine in September is 6.1h.UV index
In Knappskog, Norway, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Knappskog, Norway
- Average high temperature in September: 14°C
The warmest month (with the highest average high temperature) is August (16.1°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (0°C).
Average pressure in September
Knappskog, Norway
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1005.8mbar).
Average wind speed in September
Knappskog, Norway
- Average wind speed in September: 16.4km/h
The windiest months (with the highest average wind speed) are January and December (21.1km/h).
The calmest month (with the lowest average wind speed) is June (13.6km/h).
Average humidity in September
Knappskog, Norway
- Average humidity in September: 79%
The month with the highest relative humidity is March (81%).
The months with the lowest relative humidity are May and October (75%).
Average rainfall in September
Knappskog, Norway
- Average rainfall in September: 150mm
The wettest month (with the highest rainfall) is October (201mm).
The driest month (with the least rainfall) is April (73mm).
Average rainfall days in September
Knappskog, Norway
- Average rainfall days in September: 21.7 days
The month with the highest number of rainy days is August (22.2 days).
The month with the least rainy days is February (14.8 days).
Average snowfall in September
Knappskog, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (127mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Knappskog, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Knappskog, Norway
- Average sea temperature in September: 14.7°C
The best month for swimming (with the highest average sea temperature) is August (15.7°C).
The coldest month (with the lowest average sea temperature) is March (4.8°C).
Average daylight in September /
Average sunshine in September
Knappskog, Norway
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 6h and 6min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in September
Knappskog, Norway
- Average sunshine days in September: 7 days
The month with the most sunshine days is May (12 days).
The month with the least sunshine days is December (5.4 days).
Average UV index in September
Knappskog, Norway
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Knappskog, Norway
- Average cloud cover in September: 57
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in September
Knappskog, Norway
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





