September weather forecastSilsand, Norway
September
Weather in September
September, the first month of the autumn in Silsand, is also a frosty month, with an average temperature varying between 9.6°C (49.3°F) and 4.8°C (40.6°F).Temperature
As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a refreshing 13.8°C (56.8°F) to a chilly 9.6°C (49.3°F). Silsand's September nights demonstrate minimal variation from the daytime temperatures, with an average of 4.8°C (40.6°F).Humidity
The average relative humidity in September in Silsand is 81%.Rainfall
In Silsand, in September, it is raining for 16.9 days, with typically 85mm (3.35") of accumulated precipitation. Throughout the year, in Silsand, there are 145.9 rainfall days, and 869mm (34.21") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Silsand. Throughout September, in the average 0.5 snowfall days, it receives 3mm (0.12") of snow. Throughout the year, there are 97.8 snowfall days, and 2575mm (101.38") of snow is accumulated.Daylight
The average length of the day in September in Silsand, Norway, is 13h and 15min.On the first day of the month, sunrise is at 05:16 and sunset at 20:23. On the last day of September, sunrise is at 07:02 and sunset at 18:18 CEST.
Sunshine
In September, the average sunshine is 6.4h.UV index
In September, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 2 during September leads to these advisories:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Silsand, Norway
- Average high temperature in September: 9.6°C
The warmest month (with the highest average high temperature) is July (14.7°C).
The month with the lowest average high temperature is January (-5.7°C).
- Average low temperature in September: 4.8°C
The month with the highest average low temperature is July (8.3°C).
The coldest month (with the lowest average low temperature) is February (-11.3°C).
Average pressure in September
Silsand, Norway
- Average pressure in September: 1008.9mbar
The month with the highest atmospheric pressure is May (1014.1mbar).
The month with the lowest atmospheric pressure is December (1001.8mbar).
Average wind speed in September
Silsand, Norway
- Average wind speed in September: 10.2km/h
The windiest month (with the highest average wind speed) is January (14.2km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity in September
Silsand, Norway
- Average humidity in September: 81%
The month with the highest relative humidity is April (91%).
The month with the lowest relative humidity is July (76%).
Average rainfall in September
Silsand, Norway
- Average rainfall in September: 85mm
The wettest month (with the highest rainfall) is March (101mm).
The driest month (with the least rainfall) is August (51mm).
Average rainfall days in September
Silsand, Norway
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in September
Silsand, Norway
- Average snowfall in September: 3mm
The month with the highest snowfall is March (590mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Silsand, Norway
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is March (18.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Silsand, Norway
- Average daylight in September: 13h and 12min
The month with the longest days is August (Average daylight: 17h and 30min).
The month with the shortest days is June (Average daylight: 0h and 0min).
- Average sunshine in September: 6h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 0h and 24min).
Average sunshine days in September
Silsand, Norway
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is January (15.2 days).
The month with the least sunshine days is April (9.2 days).
Average UV index in September
Silsand, Norway
- Average UV index in September: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are March, April, October and November (UV index 1).
Average cloud cover in September
Silsand, Norway
- Average cloud cover in September: 57
The month with the most cloud cover is March (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 50).
Average visibility in September
Silsand, Norway
- Average visibility in September: 9km
The months with the highest visibility are July, August and September (9km).
The months with the lowest visibility are March, April and May (7km).
