September weather forecastSandnessjøen, Norway
September
Weather in September
The first month of the autumn, September, is also a fresh month in Sandnessjøen, Norway, with an average temperature ranging between min 9.8°C (49.6°F) and max 12.2°C (54°F).Temperature
Sandnessjøen, Norway, observes a minor difference in average high-temperatures between August's 14.5°C (58.1°F) and September's 12.2°C (54°F). Sandnessjøen welcomes an average low temperature of 9.8°C (49.6°F) in September, a gentle shift from the day's high.Humidity
In Sandnessjøen, the average relative humidity in September is 77%.Rainfall
The month with the most rainfall in Sandnessjøen, Norway, is September, when the rain falls for 19 days and typically aggregates up to 94mm (3.7") of precipitation.Snowfall
June through September are months without snowfall.Sea temperature
In September, the average sea temperature is 11.9°C (53.4°F).Note: Dipping into 11.9°C (53.4°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.
Daylight
In September, the average length of the day in Sandnessjøen is 13h and 7min.On the first day of September in Sandnessjøen, sunrise is at 05:46 and sunset at 20:31. On the last day of the month, sunrise is at 07:18 and sunset at 18:39 CEST.
Sunshine
In September, the average sunshine is 6.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 3 in September transforms into this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sandnessjøen, Norway
- Average high temperature in September: 12.2°C
The warmest month (with the highest average high temperature) is August (14.5°C).
The months with the lowest average high temperature are January and February (1.2°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (11.9°C).
The coldest months (with the lowest average low temperature) are January and February (-1.5°C).
Average pressure in September
Sandnessjøen, Norway
- Average pressure in September: 1009.5mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is December (1001.9mbar).
Average wind speed in September
Sandnessjøen, Norway
- Average wind speed in September: 20.6km/h
The windiest month (with the highest average wind speed) is January (27.7km/h).
The calmest month (with the lowest average wind speed) is July (15.6km/h).
Average humidity in September
Sandnessjøen, Norway
- Average humidity in September: 77%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Sandnessjøen, Norway
- Average rainfall in September: 94mm
The wettest month (with the highest rainfall) is September (94mm).
The driest month (with the least rainfall) is May (41mm).
Average rainfall days in September
Sandnessjøen, 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 (8.1 days).
Average snowfall in September
Sandnessjøen, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is March (106mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sandnessjøen, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Sandnessjøen, Norway
- Average sea temperature in September: 11.9°C
The best month for swimming (with the highest average sea temperature) is July (13.8°C).
The coldest month (with the lowest average sea temperature) is March (4.4°C).
Average daylight in September /
Average sunshine in September
Sandnessjøen, Norway
- Average daylight in September: 13h and 6min
The month with the longest days is July (Average daylight: 20h and 54min).
The month with the shortest days is December (Average daylight: 3h and 6min).
- Average sunshine in September: 6h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 1h and 12min).
Average sunshine days in September
Sandnessjøen, Norway
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is January (13.1 days).
The months with the least sunshine days are March and September (9.8 days).
Average UV index in September
Sandnessjøen, Norway
- Average UV index in September: 3
The months with the highest UV index are June and July (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
Sandnessjøen, Norway
- Average cloud cover in September: 58
The month with the most cloud cover is March (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 51).
Average visibility in September
Sandnessjøen, Norway
- Average visibility in September: 10km
The months with the highest visibility are June, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, July, November and December (9km).
