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September Weather in Kaerna, Sweden

Last updated: August 27, 2025

In September, the average temperature in Kaerna, Sweden hovers around 14°C (58°F), with potential lows of 6°C (43°F) and highs reaching up to 22°C (72°F). Be prepared for some rain, as the region sees about 116 mm (4.6 in) of precipitation over 15 days. The air is notably humid, with an average humidity level of 85%, making for a moist and refreshing atmosphere.

September Temperature in Kaerna

In September in Kaerna, the average temperature is 14°C (58°F). The maximum can reach 22°C (72°F), while the minimum can drop as low as 6°C (43°F). This mild weather makes it an ideal time for traveling and exploring the beautiful surroundings.

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

The chart illustrates September temperature patterns in Kaerna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kaerna, September typically has an average temperature of 14°C (58°F), with highs reaching up to 22°C (72°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec373537445261636257504438
Data source: Temperature data for Kaerna 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 Kaerna

In Kaerna in September, the total precipitation amount is 116 mm (4.6 in), occurring over a span of 15 days.

September Precipitation Trends in Kaerna

The chart displays monthly precipitation patterns in Kaerna, 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 Kaerna, September typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec577168377270861181161299381
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kaerna

In Kaerna in September, humidity is 85%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket wrapping around you, making even short walks feel heavy and exhausting for traveling.

September Average Humidity in Kaerna

This chart illustrates the average monthly humidity levels in Kaerna, 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 Kaerna is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%91%89%84%75%74%73%77%86%91%92%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kaerna

In Kaerna in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Kaerna.

Maximum UV Index Levels in Kaerna for September

The chart shows the monthly maximum UV Index (UVI) for Kaerna 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 Kaerna typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567765211
Data source: Kaerna 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 Kaerna Compares to Other Months

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

This table compares monthly weather conditions in Kaerna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)57 mm (2.2 inches)92%low
February Weather2°C (35°F)71 mm (2.8 inches)91%low
March Weather3°C (38°F)68 mm (2.7 inches)89%moderate
April Weather6°C (44°F)37 mm (1.5 inches)84%moderate
May Weather11°C (52°F)72 mm (2.8 inches)75%high
June Weather16°C (61°F)70 mm (2.8 inches)73%high
July Weather17°C (63°F)86 mm (3.4 inches)73%high
August Weather17°C (63°F)118 mm (4.6 inches)77%high
September Weather14°C (58°F)116 mm (4.6 inches)85%moderate
October Weather10°C (51°F)129 mm (5.1 inches)91%low
November Weather6°C (44°F)93 mm (3.7 inches)92%low
December Weather3°C (38°F)81 mm (3.2 inches)91%low

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