Weather in Bergen in September 2025
Average weather
Average temperature in Bergen in September
The expected average maximum temperature in September is +16°C with a maximum of +22°C and a minimum of +7°C.
The average maximum temperature goes down 33% by the end of the month, compared with the beginning of the month, from +17°C to +12°C.
Is Bergen warm or cold in September?
Bergen is typically mild in September.
Maximum temperatures go down compared to the previous month from +18°C to +15°C. The minimum temperature also goes down from +12°C to +9°C.
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 +12°C to +17°C, with an average of +14°C. This is almost similar to the air temperature, which averages +15°C.
The water temperature in September is one of the warmest of the entire year:
Can you swim in Bergen in September?
Climate in Bergen in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +18°C | +15°C | +11°C | ||||
| Min. temperature | ||||||
| +6°C | 0°C | -8°C | ||||
| Max. temperature | ||||||
| +29°C | +26°C | +23°C | ||||
| Rainfall | ||||||
| 208 mm | 252 mm | 278 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +15°C | +14°C | +12°C | ||||
| Humidity | ||||||
| 79% | 79% | 79% | ||||
| Air pressure | ||||||
| 1011 HPa | 1011 HPa | 1009 HPa | ||||
| Sunny days | ||||||
| 3 | 3 | 3 | ||||
| Cloudy days | ||||||
| 7 | 5 | 5 | ||||
| Rainy days | ||||||
| 20 | 21 | 21 | ||||
| Snowy days | ||||||
| 0 | 0 | 1 | ||||
September weather is still as ok as in August. It’s getting colder in September. From +18°C in the day, the average maximum temperature lowers to +15°C. 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
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
How was the weather last September in Bergen?
Climate Change over Years
The climate in Bergen in September has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+8°C) and the highest in 2014 (+13°C). The driest year was 1996 with only 1330 mm of rainfall, and the wettest year was 2020 with 3441 mm.
FAQ
Is September a good time to visit Bergen?
Can you sunbathe in Bergen in September?
Can you swim in Bergen in September?
Is Bergen rainy in September?
Is it sunny in Bergen in September?
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.