Weather in Ostersund in September 2025
Average weather
Average temperature in Ostersund in September
Going from a maximum of +68°F during the day to a minimum of +36°F during the night, the temperature in September averages around +59°F.
The average maximum temperature goes down 28% by the end of the month, compared with the beginning of the month, from +61°F to +52°F.
Is Ostersund warm or cold in September?
Ostersund is typically mild in September.
Maximum temperatures go down compared to the previous month from +63°F to +54°F. The minimum temperature also goes down from +50°F to +43°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 Ostersund:
Climate in Ostersund in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +63°F | +54°F | +43°F | ||||
| Min. temperature | ||||||
| +37°F | +28°F | +3°F | ||||
| Max. temperature | ||||||
| +84°F | +73°F | +66°F | ||||
| Rainfall | ||||||
| 209 mm | 284 mm | 244 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 76% | 79% | 82% | ||||
| Air pressure | ||||||
| 1010 HPa | 1010 HPa | 1008 HPa | ||||
| Sunny days | ||||||
| 2 | 2 | 2 | ||||
| Cloudy days | ||||||
| 9 | 10 | 12 | ||||
| Rainy days | ||||||
| 19 | 17 | 12 | ||||
| Snowy days | ||||||
| 0 | 0 | 6 | ||||
September weather is still as ok as in August. It’s getting colder in September. From +63°F in the day, the average maximum temperature lowers to +54°F. Prepare for more rain. Average rainfall goes from 209 mm to 284 mm. Humidity rises from 76% to 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 2 sunny days during the month.
Next month (October) brings a further decline in the weather.
Wind
The average wind speed is 4 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Ostersund is gradually decreasing during September, going from 5 m/s to 4 m/s over the course of the month.
Rain
Snow
Here’s how September is compared with other months in the amount of snow, total mm:
How was the weather last September in Ostersund?
Climate Change Over the Years
The climate in Ostersund in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1985 (+40°F) and the highest in 2020 (+47°F). The driest year was 1994 with only 275 mm of rainfall, and the wettest year was 2020 with 34013 mm.
FAQ
Is September a good time to visit Ostersund?
Can you sunbathe in Ostersund in September?
Is Ostersund rainy in September?
Is it sunny in Ostersund in September?
Other cities in Sweden
Monthly weather in Ostersund
Source of the data
For this page, we’ve looked at the typical weather in Ostersund, 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.