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September Weather in Bokn, Norway

Last updated: August 27, 2025

In September, the average temperature in Bokn, Norway hovers around 13°C (56°F). Expect a minimum of 7°C (44°F) and a comfortable maximum of 20°C (67°F). However, be prepared for a wet experience, with approximately 249 mm (9.8 in) of precipitation falling over 19 days. The air remains quite humid, with an average humidity level of 90%.

September Temperature in Bokn

In September in Bokn, the average temperature is 13°C (56°F). The maximum can reach 20°C (67°F), while the minimum can be as low as 7°C (44°F). This mild weather makes it an ideal time for exploring the sights and enjoying outdoor activities.

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

The chart illustrates September temperature patterns in Bokn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bokn, September typically has an average temperature of 13°C (56°F), with highs reaching up to 20°C (67°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec393840445057596056504541
Data source: Temperature data for Bokn 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 Bokn

In Bokn in September, the precipitation amount is 249 mm (9.8 in) over the course of 19 days.

September Precipitation Trends in Bokn

The chart displays monthly precipitation patterns in Bokn, 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 Bokn, September typically receives around 249 mm (9.8 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec1661711638987128135229249357234230
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bokn

In Bokn in September, humidity is 90%. With an average temperature of 13°C (56°F), this humidity feels like a moist blanket enveloping you, making every step sticky and muggy, and forcing you to take frequent breaks in the shade as you explore the scenery.

September Average Humidity in Bokn

This chart illustrates the average monthly humidity levels in Bokn, 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 Bokn 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 Bokn

In Bokn 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 Bokn for better planning.

Maximum UV Index Levels in Bokn for September

The chart shows the monthly maximum UV Index (UVI) for Bokn 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 Bokn typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113467654211
Data source: Bokn 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 Bokn Compares to Other Months

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

This table compares monthly weather conditions in Bokn, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)166 mm (6.5 inches)92%low
February Weather3°C (38°F)171 mm (6.7 inches)90%low
March Weather4°C (40°F)163 mm (6.4 inches)90%moderate
April Weather7°C (44°F)89 mm (3.5 inches)87%moderate
May Weather10°C (50°F)86 mm (3.4 inches)84%high
June Weather14°C (57°F)128 mm (5.1 inches)81%high
July Weather15°C (59°F)135 mm (5.3 inches)86%high
August Weather15°C (60°F)229 mm (9.0 inches)87%moderate
September Weather13°C (56°F)249 mm (9.8 inches)90%moderate
October Weather10°C (51°F)357 mm (14.0 inches)92%low
November Weather7°C (45°F)234 mm (9.2 inches)93%low
December Weather5°C (41°F)230 mm (9.1 inches)90%low

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