September weather forecastRotsund, Norway
September
Weather in September
September, the first month of the autumn in Rotsund, is also a frosty month, with temperature in the range of an average low of 5.3°C (41.5°F) and an average high of 8.8°C (47.8°F).Temperature
Rotsund's progression into September involves a minor drop in the average high-temperature, slightly receding from a fresh 12.2°C (54°F) in August to a frosty 8.8°C (47.8°F). The nights of September are characterized by an average low-temperature of 5.3°C (41.5°F), subtly descending from daytime highs.Humidity
In Rotsund, Norway, the average relative humidity in September is 82%.Rainfall
In Rotsund, in September, it is raining for 17.9 days, with typically 67mm (2.64") of accumulated precipitation. In Rotsund, during the entire year, the rain falls for 161.9 days and collects up to 769mm (30.28") of precipitation.Snowfall
Months with snowfall in Rotsund, Norway, are January through June, September through December. September is the first month it typically snows in Rotsund. Throughout September, in the average 1 snowfall days, it receives 27mm (1.06") of snow. Throughout the year, in Rotsund, there are 121.3 snowfall days, and 2376mm (93.54") of snow is accumulated.Daylight
In Rotsund, the average length of the day in September is 13h and 20min.On the first day of the month, sunrise is at 04:56 and sunset at 20:18. On the last day of September, in Rotsund, sunrise is at 06:51 and sunset at 18:03 CEST.
Sunshine
In Rotsund, Norway, the average sunshine in September is 6.9h.UV index
The average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 2 in September translates into the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rotsund, Norway
- Average high temperature in September: 8.8°C
The warmest month (with the highest average high temperature) is July (12.8°C).
The month with the lowest average high temperature is January (-4.8°C).
- Average low temperature in September: 5.3°C
The month with the highest average low temperature is July (7.8°C).
The coldest month (with the lowest average low temperature) is February (-9.1°C).
Average pressure in September
Rotsund, Norway
- Average pressure in September: 1009.2mbar
The month with the highest atmospheric pressure is May (1013.9mbar).
The month with the lowest atmospheric pressure is December (1001.2mbar).
Average wind speed in September
Rotsund, Norway
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is January (20.4km/h).
The calmest month (with the lowest average wind speed) is July (10.3km/h).
Average humidity in September
Rotsund, Norway
- Average humidity in September: 82%
The month with the highest relative humidity is April (87%).
The months with the lowest relative humidity are July and August (80%).
Average rainfall in September
Rotsund, Norway
- Average rainfall in September: 67mm
The wettest month (with the highest rainfall) is March (79mm).
The driest month (with the least rainfall) is May (57mm).
Average rainfall days in September
Rotsund, Norway
- Average rainfall days in September: 17.9 days
The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in September
Rotsund, Norway
- Average snowfall in September: 27mm
The month with the highest snowfall is March (470mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Rotsund, Norway
- Average snowfall days in September: 1 days
The month with the highest number of snowfall days is March (22.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Rotsund, Norway
- Average daylight in September: 13h and 18min
The month with the longest days is August (Average daylight: 18h and 6min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
- Average sunshine in September: 6h and 54min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 0h and 24min).
Average sunshine days in September
Rotsund, Norway
- Average sunshine days in September: 7.6 days
The month with the most sunshine days is January (12.4 days).
The month with the least sunshine days is March (6.2 days).
Average UV index in September
Rotsund, 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 and April (UV index 1).
Average cloud cover in September
Rotsund, Norway
- Average cloud cover in September: 54
The month with the most cloud cover is March (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 53).
Average visibility in September
Rotsund, Norway
- Average visibility in September: 9km
The months with the highest visibility are January, February, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are March, April and May (8km).
