Your trips
Organize your trips easily with tabs
New York
Bergen
Any date
+ Search
background

Bergen in September: Weather, Average temperature and Climate

Take a look at past year’s weather for Bergen in September and see if it is worth visiting.
Check flight prices to Bergen on Avionero:
September

Weather in Bergen in September 2025

OK Weather
Mild
🌧️
Rainy
🌊
Cold water
Bergen in September usually sees fair weather conditions, with an average daily high temperature of +59°F and roughly 3 sunny days. However, you should prepare for about 21 rainy days with an average precipitation of 252 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.

Average weather

☀️
+59°F
Avg. max. temperature
+32°F
Min.
+79°F
Max.
252 mm
Total precipitation
79%
Avg. humidity
3 m/s
Avg. wind
3 ☀️
Sunny Days
5 ⛅️
Cloudy
21 🌦
Rainy
Our opinion: Bergen has OK weather in September.

Average temperature in Bergen in September

Here are the expected maximum, average and minimum temperatures in Bergen for September based on the historical data.
Last Year
Historical Data

The temperature in September is +61°F on average, with a range between a maximum of +72°F during the day and a minimum of +45°F at night.

The average maximum temperature goes down 33% by the end of the month, compared with the beginning of the month, from +63°F to +54°F.

Is Bergen warm or cold in September?

Bergen is typically mild in September.

Maximum temperatures go down compared to the previous month from +64°F to +59°F. The minimum temperature also goes down from +54°F to +48°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how September is compared to other months in Bergen:

Water temperature in Bergen in September

Water in Bergen in September is Cold. It varies from +53°F to +62°F, with an average of +58°F. This is almost similar to the air temperature, which averages +59°F.

The water temperature in September is one of the warmest of the entire year:

The warmest water temperatures in Bergen are reached in August, when the average sea temperature rises to +60°F. The coldest water temperatures are in March, with an average of +41°F.

Can you swim in Bergen in September?

We would not recommend swimming in Bergen in September, the water is very cold (+58°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +61°F
🏄‍♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.

Climate in Bergen in September

Bergen weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+64°F+59°F+52°F
Min. temperature
+43°F+32°F+18°F
Max. temperature
+84°F+79°F+73°F
Rainfall
208 mm252 mm278 mm
Wind
3 m/s3 m/s3 m/s
Avg. water temperature
+60°F+58°F+53°F
Humidity
79%79%79%
Air pressure
1011 HPa1011 HPa1009 HPa
Sunny days
333
Cloudy days
755
Rainy days
202121
Snowy days
001

September weather is still as ok as in August. It’s getting colder in September. From +64°F in the day, the average maximum temperature lowers to +59°F. Prepare for more rain. Average rainfall goes from 208 mm to 252 mm. Humidity levels don’t change as the month goes on, averaging around 79%. The average wind speed doesn’t change much during September, staying around 3 m/s. The amount of sunny days stay about the same, averaging 3 sunny days during the month.

October brings much the same weather, it remains ok.

Wind

Wind speed in Bergen in September based on historical data.
Last Year
Historical Data

The average wind speed is 4 m/s getting up to 10 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Bergen is gradually increasing during September, going from 3 m/s to 4 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Bergen based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in September stands at 77%, leading to total precipitation of around 352 mm. The maximum amount of rainfall per day is around 49 mm, which is moderate rain. September is a pretty wet month with over 23 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
September is one of the rainiest months in Bergen, here is a comparison with other months, total mm:
Bergen wettest month is October, where a typical day has a 68% chance of precipitation and 278 mm of rainfall per day. June, on the other hand, is the driest month with a mere 57% chance of precipitation and 116 mm of rainfall per day.

How was the weather last September in Bergen?

This is the weather in Bergen in September 2023:
1 September
☀️
+63°F
2 September
☁️
+59°F
3 September
🌧️
+61°F
4 September
🌧️
+65°F
5 September
🌫️
+60°F
6 September
☀️
+65°F
7 September
☁️
+65°F
8 September
☀️
+72°F
9 September
☁️
+68°F
10 September
🌫️
+62°F
11 September
🌧️
+64°F
12 September
🌧️
+58°F
13 September
☀️
+56°F
14 September
🌧️
+55°F
15 September
🌧️
+59°F
16 September
☁️
+56°F
17 September
☀️
+61°F
18 September
🌧️
+65°F
19 September
🌧️
+59°F
20 September
🌧️
+61°F
21 September
🌧️
+61°F
22 September
🌧️
+59°F
23 September
🌧️
+55°F
24 September
☁️
+59°F
25 September
🌧️
+62°F
26 September
☁️
+64°F
27 September
🌧️
+60°F
28 September
🌧️
+61°F
29 September
🌧️
+58°F
30 September
🌧️
+54°F
In September 2023 Bergen had 5 sunny days, 6 cloudy days, and 17 rainy days. The average maximum temperature was +61°F, with an absolute maximum of +72°F and a minimum of +54°F. The average humidity was 86%, with a maximum of 100% and a minimum of 62%. The average wind speed was 4 m/s, with a maximum of 16 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

This is how Bergen climate has changed over the last 43 years.

The climate in Bergen in September has not changed that much over the last 43 years.

The average temperature was the lowest in 1979 (+47°F) and the highest in 2014 (+55°F). The driest year was 1996 with only 1330 mm of rainfall, and the wettest year was 2020 with 3441 mm.

FAQ

Frequently asked questions about the weather in Bergen in September:

Is September a good time to visit Bergen?

It’s always a good time to visit Bergen, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Bergen in September?

September has mild temperatures in Bergen. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Can you swim in Bergen in September?

Swimming in Bergen in September is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.

Is Bergen rainy in September?

Bergen is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Bergen in September?

Usually, it’s not very sunny in Bergen in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Norway

Check out the weather for other cities in Norway.

Monthly weather in Bergen

Source of the data

For this page, we’ve looked at the typical weather in Bergen, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.