Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
In the transition from August to September, Kolltveit reports an average high-temperature of a mild 14°C (57.2°F), indicating a close resemblance to the prior month. Kolltveit's nocturnal readings in September exhibit minimal variation from the daytime temperatures, averaging at a cool 11.1°C (52°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In Kolltveit, in September, during 21.7 rainfall days, 150mm (5.91") of precipitation is typically accumulated. In Kolltveit, during the entire year, the rain falls for 226.5 days and collects up to 1565mm (61.61") of precipitation.Snowfall
June through September are months without snowfall in Kolltveit.Daylight
In Kolltveit, the average length of the day in September is 12h and 52min.On the first day of the month, sunrise is at 06:35 and sunset at 20:43. On the last day of September, sunrise is at 07:44 and sunset at 19:14 CEST.
Sunshine
In Kolltveit, the average sunshine in September is 6.1h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Kolltveit?
What is the average humidity in September in Kolltveit?
How much does it rain in Kolltveit in September?
When it does not snow in Kolltveit?
Does it snow in Kolltveit in September?
What is the average length of the day in September in Kolltveit?
What time are sunrise and sunset in September in Kolltveit?
How many hours of sunshine does Kolltveit have in September?
What is the UV index reading in September in Kolltveit?
Average temperature in September
Kolltveit, 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
Kolltveit, 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
Kolltveit, 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
Kolltveit, 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
Kolltveit, 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
Kolltveit, 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
Kolltveit, 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
Kolltveit, 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 daylight in September /
Average sunshine in September
Kolltveit, Norway
- Average daylight in September: 12h and 5min
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 1min
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
Kolltveit, 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
Kolltveit, 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
Kolltveit, 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
Kolltveit, 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).
