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September Weather in Lilla Edet, Sweden

Last updated: August 27, 2025

In September, the average temperature in Lilla Edet, Sweden hovers around 13°C (55°F), with a minimum of 1°C (34°F) and a maximum reaching 23°C (74°F). Expect precipitation of about 90 mm (3.5 in) over 14 days, contributing to an average humidity of 86%. Be prepared for a mix of mild and damp conditions!

September Temperature in Lilla Edet

In September in Lilla Edet, the average temperature is 13°C (55°F), with maximums reaching 23°C (74°F) and minimums dropping to as low as 1°C (34°F). Be prepared for a range of weather conditions to make the most of your travel experience.

September Weather in Lilla Edet: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Lilla Edet, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lilla Edet, September typically has an average temperature of 13°C (55°F), with highs reaching up to 23°C (74°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec343337445261636155484135
Data source: Temperature data for Lilla Edet 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 Lilla Edet

In Lilla Edet in September, the precipitation amount is 90 mm (3.5 in) spread over a total of 14 days.

September Precipitation Trends in Lilla Edet

The chart displays monthly precipitation patterns in Lilla Edet, 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 Lilla Edet, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec486561366870859790956765
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lilla Edet

In Lilla Edet in September humidity is 86%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket clinging to your skin, making travel quite uncomfortable and urging you to seek cooler, dryer spots.

September Average Humidity in Lilla Edet

This chart illustrates the average monthly humidity levels in Lilla Edet, 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 Lilla Edet 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 Lilla Edet

In Lilla Edet 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 Lilla Edet for better planning.

Maximum UV Index Levels in Lilla Edet for September

The chart shows the monthly maximum UV Index (UVI) for Lilla Edet 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 Lilla Edet typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457764211
Data source: Lilla Edet 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 Lilla Edet Compares to Other Months

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

This table compares monthly weather conditions in Lilla Edet, 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 Weather1°C (33°F)64 mm (2.5 inches)92%low
March Weather3°C (37°F)61 mm (2.4 inches)89%moderate
April Weather6°C (44°F)36 mm (1.4 inches)82%moderate
May Weather11°C (53°F)68 mm (2.7 inches)73%moderate
June Weather16°C (62°F)70 mm (2.8 inches)71%high
July Weather17°C (64°F)85 mm (3.3 inches)72%high
August Weather16°C (62°F)97 mm (3.8 inches)77%high
September Weather13°C (55°F)90 mm (3.5 inches)86%moderate
October Weather9°C (48°F)95 mm (3.7 inches)92%low
November Weather5°C (41°F)67 mm (2.6 inches)93%low
December Weather2°C (35°F)65 mm (2.6 inches)93%low

Compare Lilla Edet's Climate with Cities Worldwide