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May Weather in Haellefors, Sweden

Last updated: August 27, 2025

In May, the average temperature in Haellefors, Sweden hovers around 10°C (50°F). Expect a range of temperatures from a chilly -4°C (26°F) to a warm 26°C (80°F). During this time, the region experiences about 67 mm (2.7 in) of precipitation over 12 days, with an average humidity of 72%. Be prepared for a mix of weather as you explore!

May Temperature in Haellefors

In May in Haellefors, the average temperature is 10°C (50°F). The maximum can reach 26°C (80°F), while the minimum can drop as low as -4°C (26°F). This fluctuation in temperatures makes it essential for travelers to pack layers to accommodate both warm and chilly weather.

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

The chart illustrates May temperature patterns in Haellefors, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Haellefors, May typically has an average temperature of 10°C (50°F), with highs reaching up to 26°C (80°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec282832395060625952443630
Data source: Temperature data for Haellefors 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 Haellefors

In Haellefors in May, the precipitation amount is 67 mm (2.7 in) over the course of 12 days.

May Precipitation Trends in Haellefors

The chart displays monthly precipitation patterns in Haellefors, 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 Haellefors, May typically receives around 67 mm (2.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec5046493567768710577896370
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Haellefors

In Haellefors in May, humidity is 72%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that permeates your clothing, making outdoor exploration less comfortable and requiring extra layers to stay warm during your travels.

May Average Humidity in Haellefors

This chart illustrates the average monthly humidity levels in Haellefors, 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 Haellefors is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%92%89%81%72%68%70%77%86%91%93%94%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Haellefors

In Haellefors 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 Haellefors.

Maximum UV Index Levels in Haellefors for May

The chart shows the monthly maximum UV Index (UVI) for Haellefors 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 Haellefors typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Haellefors 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 Haellefors Compares to Other Months

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

This table compares monthly weather conditions in Haellefors, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)50 mm (2.0 inches)94%low
February Weather-2°C (28°F)46 mm (1.8 inches)92%low
March Weather0°C (33°F)49 mm (1.9 inches)89%moderate
April Weather4°C (40°F)35 mm (1.4 inches)81%moderate
May Weather10°C (50°F)67 mm (2.7 inches)72%moderate
June Weather16°C (60°F)76 mm (3.0 inches)68%high
July Weather17°C (62°F)87 mm (3.4 inches)70%high
August Weather15°C (60°F)105 mm (4.1 inches)77%moderate
September Weather11°C (52°F)77 mm (3.0 inches)86%moderate
October Weather7°C (44°F)89 mm (3.5 inches)91%low
November Weather2°C (36°F)63 mm (2.5 inches)93%low
December Weather-1°C (30°F)70 mm (2.8 inches)94%low

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