September weather forecastDun, Norway
September
Weather in September
September, the first month of the autumn in Dun, is also a fresh month, with temperature in the range of an average high of 12.8°C (55°F) and an average low of 10.5°C (50.9°F).Temperature
With September's advent, Dun, Norway, sees an average high-temperature of a cool 12.8°C (55°F), subtly shifted from August's 15.3°C (59.5°F). Dun, during September nights, witnesses an average temperature marginally cooler than its daytime highs, at 10.5°C (50.9°F).Humidity
The average relative humidity in September is 77%.Rainfall
In September, the rain falls for 19 days. Throughout September, 82mm (3.23") of precipitation is accumulated. In Dun, Norway, during the entire year, the rain falls for 189.9 days and collects up to 767mm (30.2") of precipitation.Snowfall
In Dun, snow does not fall in June through September.Daylight
In Dun, the average length of the day in September is 13h and 2min.On the first day of September, sunrise is at 05:57 and sunset at 20:32. On the last day of the month, sunrise is at 07:22 and sunset at 18:46 CEST.
Sunshine
In Dun, the average sunshine in September is 6.6h.UV index
In September, the average daily maximum UV index in Dun is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 3 in September transforms into this advice:
Heed the precautions - It is counselled to guard against solar damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dun, Norway
- Average high temperature in September: 12.8°C
The warmest month (with the highest average high temperature) is August (15.3°C).
The month with the lowest average high temperature is February (1.8°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (12°C).
The coldest month (with the lowest average low temperature) is February (-1.2°C).
Average pressure in September
Dun, Norway
- Average pressure in September: 1009.9mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1002.2mbar).
Average wind speed in September
Dun, Norway
- Average wind speed in September: 21.8km/h
The windiest month (with the highest average wind speed) is January (30.4km/h).
The calmest month (with the lowest average wind speed) is July (16.3km/h).
Average humidity in September
Dun, Norway
- Average humidity in September: 77%
The month with the highest relative humidity is July (80%).
The months with the lowest relative humidity are May and October (75%).
Average rainfall in September
Dun, Norway
- Average rainfall in September: 82mm
The wettest month (with the highest rainfall) is December (85mm).
The driest month (with the least rainfall) is June (41mm).
Average rainfall days in September
Dun, Norway
- Average rainfall days in September: 19 days
The month with the highest number of rainy days is September (19 days).
The month with the least rainy days is February (10.6 days).
Average snowfall in September
Dun, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is March (95mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Dun, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dun, Norway
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 21h and 18min).
The month with the shortest days is December (Average daylight: 4h and 6min).
- Average sunshine in September: 6h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 30min).
Average sunshine days in September
Dun, Norway
- Average sunshine days in September: 9.6 days
The month with the most sunshine days is June (11.9 days).
The month with the least sunshine days is March (8.5 days).
Average UV index in September
Dun, 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, April, October, November and December (UV index 2).
Average cloud cover in September
Dun, Norway
- Average cloud cover in September: 55
The month with the most cloud cover is March (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 50).
Average visibility in September
Dun, Norway
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, November and December (9km).





