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September Weather in Koppom, Sweden

Last updated: August 27, 2025

In September, the average temperature in Koppom, Sweden is a pleasant 12°C (53°F). Temperatures can fluctuate, with a minimum of 1°C (34°F) and a maximum reaching 23°C (74°F). Expect 75 mm (3.0 in) of precipitation spread over approximately 13 days, and be prepared for a humid atmosphere, with an average humidity level of 86%.

September Temperature in Koppom

In September in Koppom, the average temperature is 12°C (53°F). The maximum can reach 23°C (74°F), and the minimum can be as low as 1°C (34°F). It's a great time to visit for those who enjoy mild weather but should be prepared for cooler evenings.

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

The chart illustrates September temperature patterns in Koppom, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koppom, September typically has an average temperature of 12°C (53°F), with highs reaching up to 23°C (74°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec292934415161636053453630
Data source: Temperature data for Koppom 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 Koppom

In Koppom in September, the precipitation amount is 75 mm (3.0 in) over the course of 13 days.

September Precipitation Trends in Koppom

The chart displays monthly precipitation patterns in Koppom, 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 Koppom, September typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec465151347479828776937777
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Koppom

In Koppom in September humidity is 86%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting the need for warm, layered clothing while exploring the surroundings.

September Average Humidity in Koppom

This chart illustrates the average monthly humidity levels in Koppom, 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 Koppom is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%89%82%73%71%72%77%86%92%93%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Koppom

In Koppom in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Koppom for better planning.

Maximum UV Index Levels in Koppom for September

The chart shows the monthly maximum UV Index (UVI) for Koppom 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 Koppom typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Koppom 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 Koppom Compares to Other Months

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

This table compares monthly weather conditions in Koppom, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)46 mm (1.8 inches)94%low
February Weather-2°C (29°F)51 mm (2.0 inches)92%low
March Weather1°C (34°F)51 mm (2.0 inches)89%moderate
April Weather5°C (41°F)34 mm (1.4 inches)82%moderate
May Weather10°C (51°F)74 mm (2.9 inches)73%moderate
June Weather16°C (61°F)79 mm (3.1 inches)71%high
July Weather17°C (63°F)82 mm (3.2 inches)72%high
August Weather16°C (60°F)87 mm (3.4 inches)77%moderate
September Weather12°C (53°F)75 mm (3.0 inches)86%moderate
October Weather7°C (45°F)92 mm (3.6 inches)92%low
November Weather2°C (36°F)77 mm (3.0 inches)93%low
December Weather-1°C (31°F)77 mm (3.0 inches)93%low

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