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January Weather in Rotnes, Norway

Last updated: August 27, 2025

In January, the average temperature in Rotnes, Norway hovers around -3°C (27°F), with extremes ranging from a chilly -18°C (-1°F) at night to a mild 9°C (49°F) during the day. Expect about 60 mm (2.4 in) of precipitation spread over 9 days, coupled with a high average humidity of 94%. Embrace the crisp atmosphere, but don't forget your warm layers!

January Temperature in Rotnes

In January in Rotnes, the average temperature is -3°C (27°F), with a maximum that can reach 9°C (49°F) and a minimum that can drop as low as -18°C (-1°F). Travelers should be prepared for cold weather and dress in layers to stay warm during their visit.

January Weather in Rotnes: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Rotnes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rotnes, January typically has an average temperature of -3°C (27°F), with highs reaching up to 9°C (49°F) and lows dropping to around -18°C (-1°F).
JanFebMarAprMayJunJulAugSepOctNovDec272733415161636053443628
Data source: Temperature data for Rotnes 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.

January Precipitation in Rotnes

In Rotnes in January, the total precipitation amount is 60 mm (2.4 in), occurring over a span of 9 days.

January Precipitation Trends in Rotnes

The chart displays monthly precipitation patterns in Rotnes, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Rotnes, January typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec606465389086103100106130107107
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Rotnes

In Rotnes in January, humidity is 94%. With an average temperature of -3°C (27°F), this humidity feels like a bone-chilling cold that permeates through layers of clothing, making traveling uncomfortable and the air heavy, as each breath seems to freeze in the frosty atmosphere.

January Average Humidity in Rotnes

This chart illustrates the average monthly humidity levels in Rotnes, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Rotnes is approximately 94%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%89%82%73%71%72%77%86%92%93%93%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Rotnes

In Rotnes in January, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Rotnes.

Maximum UV Index Levels in Rotnes for January

The chart shows the monthly maximum UV Index (UVI) for Rotnes in January, 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 January, the maximum UV index in Rotnes typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457754211
Data source: Rotnes January 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 January Weather in Rotnes Compares to Other Months

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

This table compares monthly weather conditions in Rotnes, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)60 mm (2.4 inches)94%low
February Weather-3°C (27°F)64 mm (2.5 inches)92%low
March Weather0°C (33°F)65 mm (2.5 inches)89%moderate
April Weather5°C (41°F)38 mm (1.5 inches)82%moderate
May Weather10°C (51°F)90 mm (3.5 inches)73%moderate
June Weather16°C (61°F)86 mm (3.4 inches)71%high
July Weather17°C (63°F)103 mm (4.1 inches)72%high
August Weather15°C (60°F)100 mm (3.9 inches)77%moderate
September Weather12°C (53°F)106 mm (4.2 inches)86%moderate
October Weather7°C (44°F)130 mm (5.1 inches)92%low
November Weather2°C (36°F)107 mm (4.2 inches)93%low
December Weather-2°C (28°F)107 mm (4.2 inches)93%low

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