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September Weather in Lagan, Sweden

Last updated: August 27, 2025

In Lagan, Sweden, the average temperature in September hovers around 13°C (55°F). However, be prepared for a range, as temperatures can dip to a brisk -1°C (31°F) or soar up to a pleasant 24°C (76°F). You'll also want to bring an umbrella, as the area sees about 79 mm (3.1 in) of precipitation over 13 days. With an average humidity of 82%, the weather can feel quite balmy. Enjoy your stay!

September Temperature in Lagan

In September in Lagan, the average temperature is 13°C (55°F). Maximum can reach 24°C (76°F) and minimum can be as low as -1°C (31°F). This diverse temperature range makes Lagan an ideal destination for travelers looking to experience varying climates.

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

The chart illustrates September temperature patterns in Lagan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lagan, September typically has an average temperature of 13°C (55°F), with highs reaching up to 24°C (76°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec333236435262636155474034
Data source: Temperature data for Lagan 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 Lagan

In Lagan in September, the precipitation amount is 79 mm (3.1 in) over a span of 13 days.

September Precipitation Trends in Lagan

The chart displays monthly precipitation patterns in Lagan, 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 Lagan, September typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec506164406966949379855166
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lagan

In Lagan in September, humidity is 82%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities sticky and uncomfortable for traveling.

September Average Humidity in Lagan

This chart illustrates the average monthly humidity levels in Lagan, 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 Lagan is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%91%89%82%70%65%65%71%82%90%92%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lagan

In Lagan 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 Lagan.

Maximum UV Index Levels in Lagan for September

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

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

This table compares monthly weather conditions in Lagan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)50 mm (2.0 inches)92%low
February Weather0°C (32°F)61 mm (2.4 inches)91%low
March Weather2°C (36°F)64 mm (2.5 inches)89%moderate
April Weather6°C (43°F)40 mm (1.6 inches)82%moderate
May Weather11°C (52°F)69 mm (2.7 inches)70%high
June Weather17°C (62°F)66 mm (2.6 inches)65%high
July Weather17°C (63°F)94 mm (3.7 inches)65%high
August Weather16°C (61°F)93 mm (3.6 inches)71%high
September Weather13°C (55°F)79 mm (3.1 inches)82%moderate
October Weather8°C (47°F)85 mm (3.3 inches)90%low
November Weather5°C (41°F)51 mm (2.0 inches)92%low
December Weather1°C (34°F)66 mm (2.6 inches)91%low

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