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September Weather in Nesna, Norway

Last updated: August 27, 2025

In Nesna, Norway, the average temperature in September hovers around 10°C (50°F), with a minimum dip to 2°C (36°F) and a peak of 18°C (65°F). Be prepared for some rain, as the region sees about 238 mm (9.4 in) of precipitation spread over 19 days. With an average humidity of 87%, expect a moist atmosphere throughout the month.

September Temperature in Nesna

In September in Nesna, the average temperature is 10°C (50°F). The maximum can reach 18°C (65°F), and the minimum can be as low as 2°C (36°F). Be sure to pack a mix of layers to stay comfortable during your travels!

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

The chart illustrates September temperature patterns in Nesna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nesna, September typically has an average temperature of 10°C (50°F), with highs reaching up to 18°C (65°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec282730364352575550423530
Data source: Temperature data for Nesna 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 Nesna

In Nesna in September, the precipitation amount is 238 mm (9.4 in) over a span of 19 days.

September Precipitation Trends in Nesna

The chart displays monthly precipitation patterns in Nesna, 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 Nesna, September typically receives around 238 mm (9.4 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec220159234168102142130184238217210184
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nesna

In Nesna in September humidity is 87%. With an average temperature of 10°C (50°F), this humidity feels like a heavy cloak wrapping around you, making every step feel laborious and the air thick with moisture, challenging your comfort while traveling.

September Average Humidity in Nesna

This chart illustrates the average monthly humidity levels in Nesna, 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 Nesna is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%85%83%77%79%82%84%87%88%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nesna

In Nesna in September, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Nesna, you can check the information here.

Maximum UV Index Levels in Nesna for September

The chart shows the monthly maximum UV Index (UVI) for Nesna 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 Nesna typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112445643211
Data source: Nesna 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 Nesna Compares to Other Months

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

This table compares monthly weather conditions in Nesna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)220 mm (8.7 inches)88%low
February Weather-3°C (27°F)159 mm (6.3 inches)87%low
March Weather-1°C (31°F)234 mm (9.2 inches)85%low
April Weather2°C (36°F)168 mm (6.6 inches)83%moderate
May Weather6°C (43°F)102 mm (4.0 inches)77%moderate
June Weather11°C (52°F)142 mm (5.6 inches)79%moderate
July Weather14°C (57°F)130 mm (5.1 inches)82%high
August Weather13°C (55°F)184 mm (7.2 inches)84%moderate
September Weather10°C (50°F)238 mm (9.4 inches)87%moderate
October Weather6°C (42°F)217 mm (8.5 inches)88%low
November Weather2°C (35°F)210 mm (8.3 inches)87%low
December Weather-1°C (31°F)184 mm (7.3 inches)87%low

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