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September Weather in Ersmark, Sweden

Last updated: August 27, 2025

In September, the average temperature in Ersmark, Sweden hovers around 9°C (49°F), with a range that can dip to a chilly -4°C (25°F) and rise up to a pleasant 20°C (69°F). Expect around 72 mm (2.8 in) of precipitation over 12 days, contributing to an average humidity level of 88%.

September Temperature in Ersmark

In September in Ersmark, the average temperature is 9°C (49°F). The maximum can reach 20°C (69°F) and the minimum can be as low as -4°C (25°F). This weather makes Ersmark a great destination for travelers seeking to enjoy mild days and cooler evenings.

September Weather in Ersmark: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ersmark, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ersmark, September typically has an average temperature of 9°C (49°F), with highs reaching up to 20°C (69°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec212027354657615849393025
Data source: Temperature data for Ersmark generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Ersmark

In Ersmark in September, the total precipitation amount is 72 mm (2.8 in) over the course of 12 days.

September Precipitation Trends in Ersmark

The chart displays monthly precipitation patterns in Ersmark, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Ersmark, September typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec555046294858747872916084
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ersmark

In Ersmark in September, humidity is 88%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and requiring extra layers to stay warm and dry.

September Average Humidity in Ersmark

This chart illustrates the average monthly humidity levels in Ersmark, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Ersmark is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%93%91%85%77%75%80%82%88%92%92%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ersmark

In Ersmark in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Ersmark, you can check the information here.

Maximum UV Index Levels in Ersmark for September

The chart shows the monthly maximum UV Index (UVI) for Ersmark in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Ersmark typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112356653211
Data source: Ersmark September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Ersmark Compares to Other Months

Weather in Ersmark varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Ersmark, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Ersmark, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)55 mm (2.2 inches)95%low
February Weather-7°C (20°F)50 mm (2.0 inches)93%low
March Weather-3°C (28°F)46 mm (1.8 inches)91%low
April Weather2°C (35°F)29 mm (1.1 inches)85%moderate
May Weather8°C (46°F)48 mm (1.9 inches)77%moderate
June Weather14°C (58°F)58 mm (2.3 inches)74%high
July Weather16°C (62°F)74 mm (2.9 inches)80%high
August Weather14°C (58°F)77 mm (3.1 inches)82%moderate
September Weather9°C (49°F)72 mm (2.8 inches)88%moderate
October Weather4°C (39°F)90 mm (3.6 inches)92%low
November Weather-1°C (30°F)60 mm (2.4 inches)92%low
December Weather-4°C (25°F)84 mm (3.3 inches)93%low

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