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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a cool 11.6°C (52.9°F) to a chilly 8.2°C (46.8°F). Recording a slight drop from the daily maximum, Sundal notes an average low temperature of 3.7°C (38.7°F) in the month of September.Humidity
In Sundal, the average relative humidity in September is 88%.Rainfall
In Sundal, in September, during 20.1 rainfall days, 131mm (5.16") of precipitation is typically accumulated. Throughout the year, in Sundal, Norway, there are 198.7 rainfall days, and 1548mm (60.94") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, there are 96.7 snowfall days, and 2625mm (103.35") of snow is accumulated.Daylight
In September, the average length of the day is 12h and 52min.On the first day of September in Sundal, Norway, sunrise is at 06:31 and sunset at 20:38. On the last day of the month, sunrise is at 07:39 and sunset at 19:09 CEST.
Sunshine
In September, the average sunshine is 4.7h.UV index
The average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in September interprets into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What is the average September temperature in Sundal?
What is the average humidity in September in Sundal?
How much does it rain in Sundal in September?
When does it start to snow in Sundal?
What is the average length of the day in September in Sundal?
When are sunrise and sunset in September in Sundal?
How long on average sun shines in September in Sundal?
How high is the UV index in September in Sundal?
Average temperature in September
Sundal, Norway
- Average high temperature in September: 8.2°C
The warmest month (with the highest average high temperature) is July (12.6°C).
The month with the lowest average high temperature is January (-4.5°C).
- Average low temperature in September: 3.7°C
The month with the highest average low temperature is July (6.8°C).
The coldest month (with the lowest average low temperature) is February (-10.6°C).
Average pressure in September
Sundal, Norway
- Average pressure in September: 1012.3mbar
The months with the highest atmospheric pressure are April and May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1006.8mbar).
Average wind speed in September
Sundal, Norway
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is January (13.3km/h).
The calmest month (with the lowest average wind speed) is July (9.1km/h).
Average humidity in September
Sundal, Norway
- Average humidity in September: 88%
The month with the highest relative humidity is December (94%).
The month with the lowest relative humidity is June (81%).
Average rainfall in September
Sundal, Norway
- Average rainfall in September: 131mm
The wettest month (with the highest rainfall) is December (206mm).
The driest month (with the least rainfall) is June (87mm).
Average rainfall days in September
Sundal, Norway
- Average rainfall days in September: 20.1 days
The month with the highest number of rainy days is August (23.2 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in September
Sundal, Norway
- Average snowfall in September: 1mm
The month with the highest snowfall is January (581mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Sundal, Norway
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (18.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Sundal, Norway
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in September: 4h and 4min
The month with the most sunshine is June (Average sunshine: 7h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).
Average sunshine days in September
Sundal, Norway
- Average sunshine days in September: 8.1 days
The month with the most sunshine days is October (10.4 days).
The month with the least sunshine days is August (5.7 days).
Average UV index in September
Sundal, Norway
- Average UV index in September: 2
The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Sundal, Norway
- Average cloud cover in September: 70
The month with the most cloud cover is December (Cloud cover 76).
The month with the least cloud cover is June (Cloud cover 61).
Average visibility in September
Sundal, Norway
- Average visibility in September: 8km
The months with the highest visibility are June, July, August, September and October (8km).
The months with the lowest visibility are February, March and December (6km).
Sundal, Norway
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