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May Weather in Hammerfest, Norway

Last updated: August 27, 2025

In May, the average temperature in Hammerfest, Norway hovers around 3°C (39°F). Expect chilly days with minimums dropping to -5°C (23°F) and occasional warm spells peaking at 16°C (61°F). Rain is also in the forecast, with 86 mm (3.4 in) of precipitation spread across approximately 17 days. Humidity levels are notably high at 81%, adding a touch of dampness to the air.

May Temperature in Hammerfest

In May in Hammerfest, the average temperature is 3°C (39°F). Maximums can reach 16°C (61°F) and minimums can be as low as -5°C (23°F). This means travelers should prepare for cool weather, layering their clothing to stay comfortable during their visit.

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

The chart illustrates May temperature patterns in Hammerfest, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hammerfest, May typically has an average temperature of 3°C (39°F), with highs reaching up to 16°C (61°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec252528333845515147383228
Data source: Temperature data for Hammerfest 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 Hammerfest

In Hammerfest in May, the precipitation amount is 86 mm (3.4 in) distributed over 17 days.

May Precipitation Trends in Hammerfest

The chart displays monthly precipitation patterns in Hammerfest, 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 Hammerfest, May typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec85831198686958390978210680
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Hammerfest

In Hammerfest in May, humidity is 81%. With an average temperature of 3°C (39°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and requiring extra layers to stay warm and dry during your travels.

May Average Humidity in Hammerfest

This chart illustrates the average monthly humidity levels in Hammerfest, 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 Hammerfest is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%90%88%86%81%85%88%89%91%89%90%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Hammerfest

In Hammerfest in May, 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 Hammerfest for better planning.

Maximum UV Index Levels in Hammerfest for May

The chart shows the monthly maximum UV Index (UVI) for Hammerfest 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 Hammerfest typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111245542110
Data source: Hammerfest 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 Hammerfest Compares to Other Months

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

This table compares monthly weather conditions in Hammerfest, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)85 mm (3.3 inches)92%low
February Weather-4°C (25°F)83 mm (3.3 inches)90%low
March Weather-2°C (28°F)119 mm (4.7 inches)88%low
April Weather0°C (33°F)86 mm (3.4 inches)86%low
May Weather3°C (39°F)86 mm (3.4 inches)81%moderate
June Weather7°C (46°F)95 mm (3.7 inches)85%moderate
July Weather11°C (52°F)83 mm (3.3 inches)87%moderate
August Weather10°C (51°F)90 mm (3.5 inches)89%moderate
September Weather8°C (47°F)97 mm (3.8 inches)91%low
October Weather4°C (39°F)82 mm (3.2 inches)89%low
November Weather0°C (32°F)106 mm (4.2 inches)90%low
December Weather-2°C (28°F)80 mm (3.2 inches)90%low

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