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September Weather in Leirvik, Norway

Last updated: August 27, 2025

In September, the average temperature in Leirvik, Norway hovers around 13°C (55°F), with daily temperatures ranging from a minimum of 6°C (43°F) to a maximum of 20°C (68°F). Expect a fair amount of rain, with 313 mm (12.3 in) of precipitation spread over 19 days. Additionally, the average humidity is quite high at 90%, creating a generally moist atmosphere throughout the month.

September Temperature in Leirvik

In September in Leirvik, the average temperature is 13°C (55°F), with maximums reaching 20°C (68°F) and minimums dropping to as low as 6°C (43°F). This mild weather makes it an ideal time for exploring the local sights and enjoying outdoor activities.

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

The chart illustrates September temperature patterns in Leirvik, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Leirvik, September typically has an average temperature of 13°C (55°F), with highs reaching up to 20°C (68°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec373638434956585955494339
Data source: Temperature data for Leirvik 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 Leirvik

In Leirvik in September, the precipitation amount is 313 mm (12.3 in), occurring over a span of 19 days.

September Precipitation Trends in Leirvik

The chart displays monthly precipitation patterns in Leirvik, 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 Leirvik, September typically receives around 313 mm (12.3 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec20420420112697164158254313384268270
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Leirvik

In Leirvik in September humidity is 90%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making every step feel more laborious and causing a sticky discomfort that can drain your energy quickly while exploring the sights.

September Average Humidity in Leirvik

This chart illustrates the average monthly humidity levels in Leirvik, 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 Leirvik is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%90%87%84%81%86%87%90%92%93%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Leirvik

In Leirvik 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 Leirvik for better planning.

Maximum UV Index Levels in Leirvik for September

The chart shows the monthly maximum UV Index (UVI) for Leirvik 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 Leirvik typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457654211
Data source: Leirvik 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 Leirvik Compares to Other Months

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

This table compares monthly weather conditions in Leirvik, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)204 mm (8.0 inches)92%low
February Weather2°C (36°F)204 mm (8.0 inches)90%low
March Weather3°C (39°F)200 mm (7.9 inches)90%moderate
April Weather6°C (43°F)126 mm (5.0 inches)87%moderate
May Weather9°C (49°F)97 mm (3.8 inches)84%moderate
June Weather13°C (56°F)164 mm (6.5 inches)81%high
July Weather15°C (58°F)158 mm (6.2 inches)86%high
August Weather15°C (59°F)254 mm (10.0 inches)87%moderate
September Weather13°C (55°F)313 mm (12.3 inches)90%moderate
October Weather9°C (49°F)384 mm (15.1 inches)92%low
November Weather6°C (43°F)268 mm (10.6 inches)93%low
December Weather4°C (39°F)270 mm (10.6 inches)90%low

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