September weather forecastBergen, Norway
September
Weather in September
September brings a mild transition from summer to fall, marking the beginning of cooler days in Bergen. Despite this change, September still retains some of summer's warmth. The month records on average 179mm (7.05") of rain that falls over 22.3 days, making it wetter than August. The decrease in daily temperatures signifies the inevitable arrival of fall, and with autumn on the horizon, the weather oscillates between mild and chilly. The city's landscapes also start to turn, painting the city with shades of yellows, oranges, and browns.Temperature
Bergen, Norway, observes an average high-temperature of a mild 13.9°C (57°F) in September, barely different from 16.1°C (61°F) in August. Night temperatures during September stabilize at an average of 11°C (51.8°F), closely mirroring the daytime temperatures.Humidity
In Bergen, the average relative humidity in September is 79%.Rainfall
In Bergen, Norway, during September, the rain falls for 22.3 days and regularly aggregates up to 179mm (7.05") of precipitation. Throughout the year, in Bergen, there are 227.1 rainfall days, and 1594mm (62.76") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Bergen.Sea temperature
In Bergen, the average seawater temperature in September is 14.7°C (58.5°F).Note: With an efficient thermal swimsuit, one can navigate 14.7°C (58.5°F) even if it's colder than 10°C (50°F); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 13°C (55.4°F) feels chilly.
Daylight
The average length of the day in September in Bergen, Norway, is 12h and 52min.On the first day of September, sunrise is at 06:34 and sunset at 20:42. On the last day of the month, sunrise is at 07:43 and sunset at 19:13 CEST.
Sunshine
The average sunshine in September in Bergen is 6h.UV index
The average daily maximum UV index in September in Bergen is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 3 during September translates into the following directions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bergen, Norway
- Average high temperature in September: 13.9°C
The warmest month (with the highest average high temperature) is August (16.1°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (0°C).
Average pressure in September
Bergen, Norway
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is May (1014.9mbar).
The month with the lowest atmospheric pressure is December (1005.8mbar).
Average wind speed in September
Bergen, Norway
- Average wind speed in September: 16.7km/h
The windiest months (with the highest average wind speed) are January and December (21.1km/h).
The calmest month (with the lowest average wind speed) is June (13.6km/h).
Average humidity in September
Bergen, Norway
- Average humidity in September: 79%
The month with the highest relative humidity is March (81%).
The months with the lowest relative humidity are May and October (75%).
Average rainfall in September
Bergen, Norway
- Average rainfall in September: 179mm
The wettest month (with the highest rainfall) is October (201mm).
The driest month (with the least rainfall) is April (73mm).
Average rainfall days in September
Bergen, Norway
- Average rainfall days in September: 22.3 days
The month with the highest number of rainy days is September (22.3 days).
The month with the least rainy days is February (14.8 days).
Average snowfall in September
Bergen, Norway
- Average snowfall in September: 0mm
The month with the highest snowfall is January (127mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Bergen, Norway
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Bergen, Norway
- Average sea temperature in September: 14.7°C
The best month for swimming (with the highest average sea temperature) is August (15.7°C).
The coldest month (with the lowest average sea temperature) is March (4.8°C).
Average daylight in September /
Average sunshine in September
Bergen, Norway
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in September: 6h and 0min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 12min).
Average sunshine days in September
Bergen, Norway
- Average sunshine days in September: 6.6 days
The month with the most sunshine days is May (12 days).
The month with the least sunshine days is December (5.4 days).
Average UV index in September
Bergen, Norway
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Bergen, Norway
- Average cloud cover in September: 58
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in September
Bergen, Norway
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
