Weather in Stavanger in September 2025
Average weather
Average temperature in Stavanger in September
Going from a maximum of +23°C during the day to a minimum of +9°C during the night, the temperature in September averages around +17°C.
The average maximum temperature goes down 36% by the end of the month, compared with the beginning of the month, from +18°C to +13°C.
Is Stavanger warm or cold in September?
Stavanger is typically mild in September.
Maximum temperatures go down compared to the previous month from +17°C to +15°C. The minimum temperature also goes down from +13°C to +11°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
September is one of the warmest months in Stavanger, here is the comparison with other months:
Water temperature in Stavanger in September
Water in Stavanger in September is Cold. It varies from +13°C to +18°C, with an average of +15°C. Note that the air temperature is lower than the water temperature, averaging around +15°C.
The water temperature in September is one of the warmest of the entire year:
Can you swim in Stavanger in September?
Climate in Stavanger in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +17°C | +15°C | +11°C | ||||
| Min. temperature | ||||||
| +6°C | +3°C | -1°C | ||||
| Max. temperature | ||||||
| +29°C | +27°C | +22°C | ||||
| Rainfall | ||||||
| 167 mm | 194 mm | 225 mm | ||||
| Wind | ||||||
| 3 m/s | 4 m/s | 4 m/s | ||||
| Avg. water temperature | ||||||
| +17°C | +15°C | +12°C | ||||
| Humidity | ||||||
| 78% | 78% | 79% | ||||
| Air pressure | ||||||
| 1011 HPa | 1012 HPa | 1009 HPa | ||||
| Sunny days | ||||||
| 3 | 3 | 2 | ||||
| Cloudy days | ||||||
| 6 | 5 | 5 | ||||
| Rainy days | ||||||
| 20 | 21 | 23 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting colder in September. From +17°C in the day, the average maximum temperature lowers to +15°C. Prepare for more rain. Average rainfall goes from 167 mm to 194 mm. Humidity levels don’t change as the month goes on, averaging around 78%. Winds are stronger in comparison to August, going up from 3 m/s to 4 m/s on average. 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 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Stavanger is gradually increasing during September, going from 4 m/s to 7 m/s over the course of the month.
Rain
How was the weather last September in Stavanger?
Climate Change over Years
The climate in Stavanger 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 (+12°C). The driest year was 1993 with only 1101 mm of rainfall, and the wettest year was 2023 with 3278 mm.
FAQ
Is September a good time to visit Stavanger?
Can you sunbathe in Stavanger in September?
Can you swim in Stavanger in September?
Is Stavanger rainy in September?
Is it sunny in Stavanger in September?
Other cities in Norway
Monthly weather in Stavanger
Source of the data
For this page, we’ve looked at the typical weather in Stavanger, 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.