September weather forecast
Östersund, Sweden

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Weather in September

September ushers in autumn with temperatures dropping to a low of 5.7°C (42.3°F) from the summer's heat. The fall foliage adds to the charm of the city rendering it picture-perfect. Rainfall amounts to 37mm (1.46"), rendering the weather partially overcast, with sunlight peeping through the clouds occasionally. Despite the fluctuating temperatures, the unique blend of sunshine and rain makes this month a favorite among nature enthusiasts. The crisp fall air makes it a delightful time for strolling through the city, witnessing the change in seasons.

Temperature

The transition into September involves a small decrease in the average high-temperature, dipping slightly from a refreshing 17.5°C (63.5°F) in August to a cool 12.6°C (54.7°F). Östersund's average low-temperature during September nights is observed to be an icy 5.7°C (42.3°F).

Humidity

The average relative humidity in September in Östersund is 80%.

Rainfall

In Östersund, in September, during 13.5 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, in Östersund, there are 122.4 rainfall days, and 377mm (14.84") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, in Östersund, there are 97.8 snowfall days, and 978mm (38.5") of snow is accumulated.

Daylight

In September, the average length of the day in Östersund is 12h and 59min.
On the first day of the month, sunrise is at 05:48 and sunset at 20:13. On the last day of September, in Östersund, Sweden, sunrise is at 07:08 and sunset at 18:34 CEST.

Sunshine

The average sunshine in September is 7.3h.

UV index

In Östersund, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 2 during September, leads to the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Feb 2, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the temperature in September in Östersund?

In September, in Östersund, the average high-temperature is 12.6°C (54.7°F), and the average low-temperature is 5.7°C (42.3°F).

What is the average humidity in September in Östersund?

The average relative humidity in September in Östersund, Sweden, is 80%.

How much does it rain in Östersund in September?

In Östersund, Sweden, in September, it is raining for 13.5 days, with typically 37mm (1.46") of accumulated precipitation.

When does it start snowing in Östersund?

September is the first month it typically snows in Östersund. Throughout September, in the average 0.5 snowfall days, it receives 5mm (0.2") of snow.

What is the average length of the day in September in Östersund?

In September, the average day length in Östersund is 12h and 59min.

What time are sunrise and sunset in September in Östersund?

In September, on the first day of the month, sunrise is at 05:48 and sunset at 20:13. On the last day of the month, in Östersund, sunrise is at 07:08 and sunset at 18:34 CEST.

How long on average sun shines in September in Östersund?

In September, the average sunshine duration in Östersund, Sweden, is 7.3h.

How high is the UV index in September in Östersund?

In September, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Östersund, Sweden

Average temperature in September - Östersund, Sweden
  • Average high temperature in September: 12.6°C

The warmest month (with the highest average high temperature) is July (18.8°C).
The month with the lowest average high temperature is January (-4.8°C).

  • Average low temperature in September: 5.7°C

The month with the highest average low temperature is July (9.8°C).
The coldest months (with the lowest average low temperature) are January and February (-9.6°C).

Average pressure in September
Östersund, Sweden

Average pressure in September - Östersund, Sweden
  • Average pressure in September: 1011.7mbar

The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1005.8mbar).

Average wind speed in September
Östersund, Sweden

Average wind speed in September - Östersund, Sweden
  • Average wind speed in September: 12.8km/h

The windiest month (with the highest average wind speed) is June (14.3km/h).
The calmest month (with the lowest average wind speed) is August (11.6km/h).

Average humidity in September
Östersund, Sweden

Average humidity in September - Östersund, Sweden
  • Average humidity in September: 80%

The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (67%).

Average rainfall in September
Östersund, Sweden

Average rainfall in September - Östersund, Sweden
  • Average rainfall in September: 37mm

The wettest month (with the highest rainfall) is July (50mm).
The driest month (with the least rainfall) is February (18mm).

Average rainfall days in September
Östersund, Sweden

Average rainfall days in September - Östersund, Sweden
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (4 days).

Average snowfall in September
Östersund, Sweden

Average snowfall in September - Östersund, Sweden
  • Average snowfall in September: 5mm

The month with the highest snowfall is December (192mm).
The months with the least snowfall are June, July and August (0mm).

Average snowfall days in September
Östersund, Sweden

Average snowfall days in September - Östersund, Sweden
  • Average snowfall days in September: 0.5 days

The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Östersund, Sweden

Average daylight in September / Average sunshine in September - Östersund, Sweden
  • Average daylight in September: 13h and 0min

The month with the longest days is June (Average daylight: 20h and 12min).
The month with the shortest days is December (Average daylight: 4h and 54min).

  • Average sunshine in September: 7h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).

Average sunshine days in September
Östersund, Sweden

Average sunshine days in September - Östersund, Sweden
  • Average sunshine days in September: 12.8 days

The month with the most sunshine days is October (15.1 days).
The month with the least sunshine days is December (11.4 days).

Average UV index in September
Östersund, Sweden

Average UV index in September - Östersund, Sweden
  • Average UV index in September: 2

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in September
Östersund, Sweden

Average cloud cover in September - Östersund, Sweden
  • Average cloud cover in September: 50

The months with the most cloud cover are January and December (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 45).

Average visibility in September
Östersund, Sweden

Average visibility in September - Östersund, Sweden
  • Average visibility in September: 9km

The month with the highest visibility is June (10km).
The months with the lowest visibility are January and February (7km).

Östersund, Sweden

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