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
Weather in September
Temperature
With the onset of September, the average high-temperature subtly recedes from August's mild 13.2°C (55.8°F) to a frosty 8.7°C (47.7°F). In Geilo, the average temperature during the nights of September drops to a wintry 1.9°C (35.4°F).Humidity
In September, the average relative humidity in Geilo, Norway, is 83%.Rainfall
In Geilo, in September, it is raining for 13.4 days, with typically 41mm (1.61") of accumulated precipitation. Throughout the year, in Geilo, there are 114.3 rainfall days, and 434mm (17.09") of precipitation is accumulated.Snowfall
Months with snowfall in Geilo, Norway, are January through June, September through December. September is the first month it typically snows in Geilo. Throughout September, in the average 1.5 snowfall days, it receives 22mm (0.87") of snow. Throughout the year, in Geilo, Norway, there are 116.6 snowfall days, and 1481mm (58.31") of snow is accumulated.Daylight
In September, the average length of the day in Geilo is 12h and 53min.On the first day of September in Geilo, sunrise is at 06:22 and sunset at 20:31. On the last day of the month, sunrise is at 07:32 and sunset at 19:01 CEST.
Sunshine
In September, the average sunshine in Geilo, Norway, is 7.6h.UV index
In Geilo, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 2 during September translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are the temperatures in Geilo in September?
What is the average humidity in September in Geilo?
How many days does it rain in September in Geilo?
When does it start to snow in Geilo?
How many hours of daylight does Geilo have in September?
When are sunrise and sunset in September in Geilo?
How many hours of sunshine does Geilo have in September?
How high is the UV index in September in Geilo?
Average temperature in September
Geilo, Norway
- Average high temperature in September: 8.7°C
The warmest month (with the highest average high temperature) is July (14.6°C).
The month with the lowest average high temperature is January (-7°C).
- Average low temperature in September: 1.9°C
The month with the highest average low temperature is July (5.8°C).
The coldest month (with the lowest average low temperature) is January (-13°C).
Average pressure in September
Geilo, Norway
- Average pressure in September: 1012.3mbar
The month with the highest atmospheric pressure is April (1014.9mbar).
The month with the lowest atmospheric pressure is December (1007.4mbar).
Average wind speed in September
Geilo, Norway
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is March (13.9km/h).
The calmest month (with the lowest average wind speed) is May (11km/h).
Average humidity in September
Geilo, Norway
- Average humidity in September: 83%
The months with the highest relative humidity are January and December (92%).
The month with the lowest relative humidity is June (73%).
Average rainfall in September
Geilo, Norway
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Geilo, Norway
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in September
Geilo, Norway
- Average snowfall in September: 22mm
The month with the highest snowfall is November (260mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Geilo, Norway
- Average snowfall days in September: 1.5 days
The month with the highest number of snowfall days is December (17.9 days).
The month with the least snowfall days is August (0.1 days).
Average daylight in September /
Average sunshine in September
Geilo, 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: 7h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).
Average sunshine days in September
Geilo, Norway
- Average sunshine days in September: 12.7 days
The months with the most sunshine days are April and May (15.8 days).
The month with the least sunshine days is December (10.9 days).
Average UV index in September
Geilo, 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 February and April (UV index 1).
Average cloud cover in September
Geilo, Norway
- Average cloud cover in September: 51
The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is June (Cloud cover 43).
Average visibility in September
Geilo, 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, April, November and December (7km).
Geilo, Norway
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