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September Weather in Hamnvik, Norway

Last updated: August 27, 2025

In September, the average temperature in Hamnvik, Norway hovers around 8°C (47°F). Expect a minimum of -1°C (30°F) and a pleasant maximum of 21°C (69°F). With 140 mm (5.5 in) of precipitation spread over 17 days, don’t forget your umbrella! The air is quite humid, with an average humidity of 88%, making it a cozy yet damp experience.

September Temperature in Hamnvik

In September in Hamnvik, the average temperature is 8°C (47°F). Maximum temperatures can reach 21°C (69°F), while minimums can dip as low as -1°C (30°F). This weather makes it a perfect time for travelers to enjoy a mix of mild days and crisp evenings.

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

The chart illustrates September temperature patterns in Hamnvik, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hamnvik, September typically has an average temperature of 8°C (47°F), with highs reaching up to 21°C (69°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec242227324049555447383125
Data source: Temperature data for Hamnvik 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 Hamnvik

In Hamnvik in September, the precipitation amount is 140 mm (5.5 in) spread over 17 days.

September Precipitation Trends in Hamnvik

The chart displays monthly precipitation patterns in Hamnvik, 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 Hamnvik, September typically receives around 140 mm (5.5 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec10911914410891132111131140108114105
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hamnvik

In Hamnvik in September, humidity is 88%. With an average temperature of 8°C (47°F), this humidity feels like a thick, damp blanket wrapping around you, making even short walks feel heavy and uninviting for travel.

September Average Humidity in Hamnvik

This chart illustrates the average monthly humidity levels in Hamnvik, 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 Hamnvik is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%85%83%77%82%83%84%88%88%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hamnvik

In Hamnvik in September, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Hamnvik, you can visit Hourly UV Index in Hamnvik.

Maximum UV Index Levels in Hamnvik for September

The chart shows the monthly maximum UV Index (UVI) for Hamnvik 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 Hamnvik typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112345542110
Data source: Hamnvik 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 Hamnvik Compares to Other Months

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

This table compares monthly weather conditions in Hamnvik, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)109 mm (4.3 inches)89%low
February Weather-5°C (23°F)119 mm (4.7 inches)88%low
March Weather-3°C (27°F)144 mm (5.7 inches)85%low
April Weather0°C (32°F)108 mm (4.2 inches)83%moderate
May Weather4°C (40°F)91 mm (3.6 inches)77%moderate
June Weather10°C (50°F)132 mm (5.2 inches)82%moderate
July Weather13°C (55°F)111 mm (4.4 inches)83%moderate
August Weather12°C (54°F)131 mm (5.2 inches)84%moderate
September Weather8°C (47°F)140 mm (5.5 inches)88%low
October Weather3°C (38°F)108 mm (4.2 inches)88%low
November Weather0°C (32°F)114 mm (4.5 inches)87%low
December Weather-4°C (25°F)105 mm (4.1 inches)87%low

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