September weather forecastTrofors, Norway
September
Weather in September
September, the first month of the autumn in Trofors, is still a cool month, with an average temperature varying between 5.5°C (41.9°F) and 10.5°C (50.9°F).Temperature
September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a moderate 14.5°C (58.1°F) in August to a fresh 10.5°C (50.9°F). The month of September is marked by an average minimum temperature of 5.5°C (41.9°F), slightly cooler than its daytime counterpart.Humidity
The average relative humidity in September is 84%.Rainfall
In Trofors, in September, during 18.2 rainfall days, 83mm (3.27") of precipitation is typically accumulated. In Trofors, during the entire year, the rain falls for 141.5 days and collects up to 979mm (38.54") of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Trofors. Throughout September, in the average 0.7 snowfall days, it receives 8mm (0.31") of snow. In Trofors, during the entire year, snow falls for 116.8 days and aggregates up to 2443mm (96.18") of snow.Daylight
In Trofors, the average length of the day in September is 13h and 5min.On the first day of the month, sunrise is at 05:45 and sunset at 20:26. On the last day of September, sunrise is at 07:15 and sunset at 18:37 CEST.
Sunshine
In September, the average sunshine is 5.5h.UV index
The average daily maximum UV index in September in Trofors is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 2 in September translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trofors, Norway
- Average high temperature in September: 10.5°C
The warmest month (with the highest average high temperature) is July (15.4°C).
The month with the lowest average high temperature is January (-4.6°C).
- Average low temperature in September: 5.5°C
The month with the highest average low temperature is July (9.2°C).
The coldest month (with the lowest average low temperature) is February (-9.4°C).
Average pressure in September
Trofors, Norway
- Average pressure in September: 1010mbar
The month with the highest atmospheric pressure is May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1002.6mbar).
Average wind speed in September
Trofors, Norway
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is January (16.6km/h).
The calmest month (with the lowest average wind speed) is July (9.4km/h).
Average humidity in September
Trofors, Norway
- Average humidity in September: 84%
The months with the highest relative humidity are February and April (90%).
The month with the lowest relative humidity is June (76%).
Average rainfall in September
Trofors, Norway
- Average rainfall in September: 83mm
The wettest month (with the highest rainfall) is March (112mm).
The driest month (with the least rainfall) is July (59mm).
Average rainfall days in September
Trofors, Norway
- Average rainfall days in September: 18.2 days
The month with the highest number of rainy days is September (18.2 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Trofors, Norway
- Average snowfall in September: 8mm
The month with the highest snowfall is March (482mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Trofors, Norway
- Average snowfall days in September: 0.7 days
The month with the highest number of snowfall days is March (19.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Trofors, Norway
- Average daylight in September: 13h and 6min
The month with the longest days is June (Average daylight: 22h and 24min).
The month with the shortest days is December (Average daylight: 3h and 30min).
- Average sunshine in September: 5h and 30min
The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).
Average sunshine days in September
Trofors, Norway
- Average sunshine days in September: 10 days
The month with the most sunshine days is January (12.1 days).
The month with the least sunshine days is May (8.6 days).
Average UV index in September
Trofors, Norway
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are February, March, November and December (UV index 1).
Average cloud cover in September
Trofors, Norway
- Average cloud cover in September: 62
The month with the most cloud cover is March (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 57).
Average visibility in September
Trofors, Norway
- Average visibility in September: 9km
The months with the highest visibility are June, July, August, September, October, November and December (9km).
The month with the lowest visibility is April (7km).
