September weather forecastSortland, Norway
September
Weather in September
The first month of the autumn, September, is still a cool month in Sortland, Norway, with an average temperature ranging between max 10.5°C (50.9°F) and min 7.4°C (45.3°F).Temperature
The arrival of September sees an average high-temperature of a cool 10.5°C (50.9°F), hardly diverging from August's 13.3°C (55.9°F). Recording a slight decline in temperature during the nights, Sortland's September temperatures average at a chilly 7.4°C (45.3°F).Humidity
In Sortland, the average relative humidity in September is 81%.Rainfall
In Sortland, Norway, during September, the rain falls for 19.5 days and regularly aggregates up to 70mm (2.76") of precipitation. Throughout the year, there are 178.5 rainfall days, and 959mm (37.76") of precipitation is accumulated.Snowfall
Months with snowfall in Sortland are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, there are 104.3 snowfall days, and 1874mm (73.78") of snow is accumulated.Sea temperature
In Sortland, in September, the average water temperature is 10.7°C (51.3°F).Note: Without suitable protection, venturing into 10.7°C (51.3°F) waters cooler than 10°C (50°F) can lead to pronounced cold shock and rapid breaths.
Daylight
The average length of the day in September is 13h and 16min.On the first day of the month, sunrise is at 05:23 and sunset at 20:32. On the last day of September, in Sortland, sunrise is at 07:10 and sunset at 18:25 CEST.
Sunshine
In September, the average sunshine is 5.7h.UV index
The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 2 during September translates into these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sortland, Norway
- Average high temperature in September: 10.5°C
The warmest month (with the highest average high temperature) is July (13.6°C).
The month with the lowest average high temperature is February (-0.7°C).
- Average low temperature in September: 7.4°C
The month with the highest average low temperature is July (9.6°C).
The coldest month (with the lowest average low temperature) is February (-4°C).
Average pressure in September
Sortland, Norway
- Average pressure in September: 1008.8mbar
The month with the highest atmospheric pressure is May (1013.8mbar).
The month with the lowest atmospheric pressure is December (1000.6mbar).
Average wind speed in September
Sortland, Norway
- Average wind speed in September: 15.2km/h
The windiest month (with the highest average wind speed) is March (20.9km/h).
The calmest month (with the lowest average wind speed) is July (13km/h).
Average humidity in September
Sortland, Norway
- Average humidity in September: 81%
The month with the highest relative humidity is April (82%).
The month with the lowest relative humidity is December (78%).
Average rainfall in September
Sortland, Norway
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is December (104mm).
The driest month (with the least rainfall) is July (59mm).
Average rainfall days in September
Sortland, Norway
- Average rainfall days in September: 19.5 days
The month with the highest number of rainy days is September (19.5 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in September
Sortland, Norway
- Average snowfall in September: 1mm
The month with the highest snowfall is March (370mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Sortland, Norway
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is March (21.1 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in September
Sortland, Norway
- Average sea temperature in September: 10.7°C
The best month for swimming (with the highest average sea temperature) is August (12.3°C).
The coldest month (with the lowest average sea temperature) is March (4.9°C).
Average daylight in September /
Average sunshine in September
Sortland, Norway
- Average daylight in September: 13h and 18min
The month with the longest days is August (Average daylight: 17h and 36min).
The month with the shortest days is June (Average daylight: 0h and 0min).
- Average sunshine in September: 5h and 42min
The month with the most sunshine is August (Average sunshine: 7h and 30min).
The month with the least sunshine is December (Average sunshine: 0h and 24min).
Average sunshine days in September
Sortland, Norway
- Average sunshine days in September: 9 days
The month with the most sunshine days is July (13.5 days).
The month with the least sunshine days is March (5.3 days).
Average UV index in September
Sortland, 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 February, March, November and December (UV index 1).
Average cloud cover in September
Sortland, Norway
- Average cloud cover in September: 63
The month with the most cloud cover is March (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 59).
Average visibility in September
Sortland, Norway
- Average visibility in September: 9km
The months with the highest visibility are May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March and April (8km).
