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May Weather in Trofors, Norway

Last updated: August 27, 2025

In Trofors, Norway, the average temperature in May hovers around 4°C (40°F), making it a cool time of year. Expect temperatures to fluctuate, with a minimum dipping to -8°C (18°F) and a maximum rising to 23°C (73°F). With 87 mm (3.4 in) of precipitation spread over 15 days, you'll want to prepare for occasional rain. The average humidity levels are at a comfortable 82%, adding to the season's crisp atmosphere.

May Temperature in Trofors

In May in Trofors, the average temperature is 4°C (40°F). Maxima can reach up to 23°C (73°F), while minima can drop as low as -8°C (18°F). Travelers should be prepared for a wide range of temperatures and bring appropriate clothing for both warmth and cooler conditions.

May Weather in Trofors: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Trofors, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trofors, May typically has an average temperature of 4°C (40°F), with highs reaching up to 23°C (73°F) and lows dropping to around -8°C (18°F).
JanFebMarAprMayJunJulAugSepOctNovDec201924304050555244352722
Data source: Temperature data for Trofors 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.

May Precipitation in Trofors

In Trofors in May, the precipitation amount is 87 mm (3.4 in) over the course of 15 days.

May Precipitation Trends in Trofors

The chart displays monthly precipitation patterns in Trofors, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Trofors, May typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec20213522113887129117157182148150141
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Trofors

In Trofors in May, humidity is 82%. With an average temperature of 4°C (40°F), this humidity feels like a chilly dampness that lingers in the air, making travel slightly uncomfortable as the cold penetrates through layers of clothing, often leaving you feeling chilled and clammy.

May Average Humidity in Trofors

This chart illustrates the average monthly humidity levels in Trofors, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Trofors is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%95%92%88%82%79%83%89%91%94%95%96%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Trofors

In Trofors in May, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Trofors.

Maximum UV Index Levels in Trofors for May

The chart shows the monthly maximum UV Index (UVI) for Trofors in May, 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 May, the maximum UV index in Trofors typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113456643211
Data source: Trofors May 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 May Weather in Trofors Compares to Other Months

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

This table compares monthly weather conditions in Trofors, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)202 mm (8.0 inches)97%low
February Weather-7°C (19°F)135 mm (5.3 inches)94%low
March Weather-5°C (24°F)221 mm (8.7 inches)92%moderate
April Weather-1°C (31°F)138 mm (5.4 inches)88%moderate
May Weather4°C (40°F)87 mm (3.4 inches)82%moderate
June Weather10°C (51°F)129 mm (5.1 inches)79%high
July Weather13°C (55°F)117 mm (4.6 inches)83%high
August Weather11°C (52°F)157 mm (6.2 inches)89%moderate
September Weather7°C (45°F)182 mm (7.2 inches)91%moderate
October Weather2°C (36°F)148 mm (5.8 inches)94%low
November Weather-3°C (28°F)150 mm (5.9 inches)95%low
December Weather-6°C (22°F)141 mm (5.5 inches)96%low

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