September weather forecastDalen, Norway
September
Weather in September
September, the first month of the autumn in Dalen, is still a cool month, with an average temperature fluctuating between 4.8°C (40.6°F) and 12.7°C (54.9°F).Temperature
The advent of September brings a slight shift in average high-temperature, moving from a refreshing 17°C (62.6°F) in August to a cool 12.7°C (54.9°F). An average low-temperature of 4.8°C (40.6°F) is noted during the nights in September in Dalen.Humidity
The average relative humidity in September is 82%.Rainfall
In September, the rain falls for 16.3 days. Throughout September, 77mm (3.03") of precipitation is accumulated. In Dalen, during the entire year, the rain falls for 158.6 days and collects up to 831mm (32.72") of precipitation.Snowfall
In Dalen, Norway, snow does not fall in June through September.Daylight
In September, the average length of the day in Dalen is 12h and 50min.On the first day of September, sunrise is at 06:25 and sunset at 20:29. On the last day of the month, sunrise is at 07:32 and sunset at 19:03 CEST.
Sunshine
The average sunshine in September is 6.9h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 3 suggests this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dalen, Norway
- Average high temperature in September: 12.7°C
The warmest month (with the highest average high temperature) is July (18.4°C).
The month with the lowest average high temperature is January (-3.6°C).
- Average low temperature in September: 4.8°C
The month with the highest average low temperature is July (8.5°C).
The coldest month (with the lowest average low temperature) is February (-8.9°C).
Average pressure in September
Dalen, Norway
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is April (1014.7mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).
Average wind speed in September
Dalen, Norway
- Average wind speed in September: 9km/h
The windiest months (with the highest average wind speed) are January and December (9.3km/h).
The calmest month (with the lowest average wind speed) is August (7.7km/h).
Average humidity in September
Dalen, Norway
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is June (68%).
Average rainfall in September
Dalen, Norway
- Average rainfall in September: 77mm
The wettest month (with the highest rainfall) is November (93mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in September
Dalen, Norway
- Average rainfall days in September: 16.3 days
The month with the highest number of rainy days is August (19.8 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in September
Dalen, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is December (418mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Dalen, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dalen, Norway
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).
- Average sunshine in September: 6h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Dalen, Norway
- Average sunshine days in September: 10.8 days
The month with the most sunshine days is April (12.6 days).
The month with the least sunshine days is August (8.8 days).
Average UV index in September
Dalen, Norway
- Average UV index in September: 3
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, October and December (UV index 1).
Average cloud cover in September
Dalen, Norway
- Average cloud cover in September: 51
The months with the most cloud cover are February and November (Cloud cover 60).
The month with the least cloud cover is June (Cloud cover 41).
Average visibility in September
Dalen, Norway
- Average visibility in September: 8km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January, February, March and November (6km).
