September weather forecastAndenes, Norway
September
Weather in September
September brings the admiring arrival of autumn to Andenes. Flashes of crisp air are felt as the season progresses. A specific mark of weather transformation can be observed in snowfall, reappearing after a gap of three months, though still at a meager amount. Enjoyment shifts from sea to land, with activities such as walking amongst colorful fall foliage becoming popular. Thus, September seamlessly transitions from warmth to a crisp coolness, embodying a true Norwegian autumn.Temperature
The transition into September in Andenes notes an average high-temperature of a still fresh 11.2°C (52.2°F), revealing a mild distinction from the 12.6°C (54.7°F) in August. The nighttime temperature in Andenes, Norway, in September experiences a minor dip, averaging a chilly 9.4°C (48.9°F).Humidity
In Andenes, the average relative humidity in September is 78%.Rainfall
In Andenes, Norway, during September, the rain falls for 18.1 days and regularly aggregates up to 51mm (2.01") of precipitation. Throughout the year, there are 164.6 rainfall days, and 646mm (25.43") of precipitation is accumulated.Snowfall
In Andenes, snow does not fall in June through September.Sea temperature
In September, the average sea temperature in Andenes is 10.6°C (51.1°F).Note: Unprotected swimming in 10.6°C (51.1°F) is dangerous due to potential cold shock. Especially when temperatures go below 10°C (50°F), leading to hyperventilation.
Daylight
In Andenes, Norway, the average length of the day in September is 13h and 19min.On the first day of the month, sunrise is at 05:17 and sunset at 20:33. On the last day of September, in Andenes, sunrise is at 07:08 and sunset at 18:22 CEST.
Sunshine
The average sunshine in September in Andenes is 6.3h.UV index
In Andenes, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 3 in September leads to these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Andenes, Norway
- Average high temperature in September: 11.2°C
The warmest month (with the highest average high temperature) is August (12.6°C).
The month with the lowest average high temperature is February (1.8°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is August (10.7°C).
The coldest month (with the lowest average low temperature) is February (-0.7°C).
Average pressure in September
Andenes, Norway
- Average pressure in September: 1008.6mbar
The month with the highest atmospheric pressure is May (1013.7mbar).
The month with the lowest atmospheric pressure is December (1000.1mbar).
Average wind speed in September
Andenes, Norway
- Average wind speed in September: 20.7km/h
The windiest month (with the highest average wind speed) is March (29.1km/h).
The calmest month (with the lowest average wind speed) is July (17.8km/h).
Average humidity in September
Andenes, Norway
- Average humidity in September: 78%
The month with the highest relative humidity is July (83%).
The months with the lowest relative humidity are March and December (71%).
Average rainfall in September
Andenes, Norway
- Average rainfall in September: 51mm
The wettest months (with the highest rainfall) are November and December (69mm).
The driest month (with the least rainfall) is July (32mm).
Average rainfall days in September
Andenes, Norway
- Average rainfall days in September: 18.1 days
The month with the highest number of rainy days is October (19 days).
The month with the least rainy days is February (7.6 days).
Average snowfall in September
Andenes, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is February (129mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Andenes, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (14.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Andenes, Norway
- Average sea temperature in September: 10.6°C
The best month for swimming (with the highest average sea temperature) is August (12°C).
The coldest month (with the lowest average sea temperature) is March (4.1°C).
Average daylight in September /
Average sunshine in September
Andenes, Norway
- Average daylight in September: 13h and 18min
The month with the longest days is August (Average daylight: 17h and 54min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
- Average sunshine in September: 6h and 18min
The month with the most sunshine is August (Average sunshine: 8h and 42min).
The month with the least sunshine is December (Average sunshine: 0h and 18min).
Average sunshine days in September
Andenes, Norway
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is July (14.6 days).
The month with the least sunshine days is March (5.9 days).
Average UV index in September
Andenes, Norway
- Average UV index in September: 3
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February and March (UV index 1).
Average cloud cover in September
Andenes, Norway
- Average cloud cover in September: 58
The month with the most cloud cover is March (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 54).
Average visibility in September
Andenes, Norway
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are February and March (8km).
