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September Weather in Kaellby, Sweden

Last updated: August 27, 2025

In Kaellby, Sweden, the average temperature in September hovers around 13°C (56°F). Expect a minimum of 4°C (40°F) and a pleasant maximum of 23°C (74°F). During this month, you'll encounter about 98 mm (3.9 in) of precipitation spread over 15 days, contributing to an average humidity of 86%. Be prepared for a mix of mild days and showers!

September Temperature in Kaellby

In September in Kaellby, the average temperature is 13°C (56°F). Maximums can reach 23°C (74°F), while minimums can be as low as 4°C (40°F). It's a great time to explore Kaellby with mild temperatures that are perfect for outdoor activities.

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

The chart illustrates September temperature patterns in Kaellby, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kaellby, September typically has an average temperature of 13°C (56°F), with highs reaching up to 23°C (74°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec333235425262646256484135
Data source: Temperature data for Kaellby 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 Kaellby

In Kaellby in September, the total precipitation amount is 98 mm (3.9 in) spread over 15 days.

September Precipitation Trends in Kaellby

The chart displays monthly precipitation patterns in Kaellby, 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 Kaellby, September typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec4858553269758291981027668
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kaellby

In Kaellby in September, humidity is 86%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making outdoor activities slightly uncomfortable and prompting travelers to seek shade or air-conditioned spaces frequently.

September Average Humidity in Kaellby

This chart illustrates the average monthly humidity levels in Kaellby, 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 Kaellby is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%89%81%72%68%70%77%86%91%93%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kaellby

In Kaellby 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 Kaellby for better planning.

Maximum UV Index Levels in Kaellby for September

The chart shows the monthly maximum UV Index (UVI) for Kaellby 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 Kaellby typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123467764211
Data source: Kaellby 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 Kaellby Compares to Other Months

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

This table compares monthly weather conditions in Kaellby, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)48 mm (1.9 inches)94%low
February Weather0°C (32°F)58 mm (2.3 inches)92%low
March Weather2°C (35°F)55 mm (2.2 inches)89%moderate
April Weather5°C (42°F)32 mm (1.3 inches)81%moderate
May Weather11°C (52°F)69 mm (2.7 inches)72%high
June Weather17°C (63°F)75 mm (2.9 inches)68%high
July Weather18°C (65°F)82 mm (3.2 inches)70%high
August Weather17°C (63°F)91 mm (3.6 inches)77%high
September Weather13°C (56°F)98 mm (3.9 inches)86%moderate
October Weather9°C (48°F)102 mm (4.0 inches)91%low
November Weather5°C (41°F)76 mm (3.0 inches)93%low
December Weather2°C (36°F)68 mm (2.7 inches)94%low

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