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September Weather in Karasjohka, Norway

Last updated: August 27, 2025

In September, the average temperature in Karasjohka, Norway hovers around 7°C (44°F). Expect a wide range, with minimums dipping to -5°C (24°F) and maximums reaching up to 21°C (71°F). This month also brings 57 mm (2.3 in) of precipitation over approximately 11 days, accompanied by a high average humidity of 92%.

September Temperature in Karasjohka

In September in Karasjohka, the average temperature is 7°C (44°F). Maximum temperatures can reach 21°C (71°F), while minimum temperatures can drop as low as -5°C (24°F). It's advisable to pack layers for your trip, as the weather can vary significantly throughout the day.

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

The chart illustrates September temperature patterns in Karasjohka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Karasjohka, September typically has an average temperature of 7°C (44°F), with highs reaching up to 21°C (71°F) and lows dropping to around -5°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec131219293850575144322216
Data source: Temperature data for Karasjohka 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 Karasjohka

In Karasjohka in September, the total precipitation amount is 57 mm (2.3 in) over the course of 11 days.

September Precipitation Trends in Karasjohka

The chart displays monthly precipitation patterns in Karasjohka, 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 Karasjohka, September typically receives around 57 mm (2.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec343333325271909857494037
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Karasjohka

In Karasjohka in September, humidity is 92%. With an average temperature of 7°C (44°F), this humidity feels like an oppressive blanket, making outdoor activities uncomfortable and travel cumbersome as the dampness seeps into your clothes and chills your bones.

September Average Humidity in Karasjohka

This chart illustrates the average monthly humidity levels in Karasjohka, 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 Karasjohka is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec99%98%94%90%84%83%86%90%92%96%98%100%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Karasjohka

In Karasjohka 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 Karasjohka, you can visit Hourly UV Index in Karasjohka.

Maximum UV Index Levels in Karasjohka for September

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

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

This table compares monthly weather conditions in Karasjohka, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (14°F)34 mm (1.3 inches)99%low
February Weather-11°C (12°F)33 mm (1.3 inches)98%low
March Weather-7°C (19°F)33 mm (1.3 inches)94%low
April Weather-2°C (29°F)32 mm (1.2 inches)90%moderate
May Weather3°C (38°F)52 mm (2.0 inches)84%moderate
June Weather10°C (50°F)71 mm (2.8 inches)83%moderate
July Weather14°C (57°F)90 mm (3.5 inches)85%moderate
August Weather11°C (52°F)98 mm (3.8 inches)90%moderate
September Weather7°C (44°F)57 mm (2.3 inches)92%low
October Weather0°C (32°F)49 mm (1.9 inches)96%low
November Weather-6°C (22°F)40 mm (1.6 inches)98%low
December Weather-9°C (16°F)37 mm (1.5 inches)100%low

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