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May Weather in Hallstahammar, Sweden

Last updated: August 27, 2025

In May, the average temperature in Hallstahammar, Sweden hovers around 11°C (52°F), offering a mild climate. However, temperatures can vary significantly, ranging from a chilly -4°C (25°F) at their lowest to a warm 29°C (84°F) at their peak. Expect about 60 mm (2.4 in) of precipitation over 10 days, contributing to an average humidity of around 71%, making for a refreshing atmosphere.

May Temperature in Hallstahammar

In May in Hallstahammar, the average temperature is 11°C (52°F), with maximums reaching up to 29°C (84°F) and minimums dropping as low as -4°C (25°F). Be prepared for a wide range of temperatures when traveling to Hallstahammar during this time.

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

The chart illustrates May temperature patterns in Hallstahammar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hallstahammar, May typically has an average temperature of 11°C (52°F), with highs reaching up to 29°C (84°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec303035425263656254453832
Data source: Temperature data for Hallstahammar 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 Hallstahammar

In Hallstahammar in May, the precipitation amount is 60 mm (2.4 in) accumulated over a period of 10 days.

May Precipitation Trends in Hallstahammar

The chart displays monthly precipitation patterns in Hallstahammar, 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 Hallstahammar, May typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec373340306058598163754958
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Hallstahammar

In Hallstahammar in May, humidity is 71%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that seeps into your clothes, making outdoor exploration less enjoyable and encouraging frequent breaks in cozy cafes or sheltered spots.

May Average Humidity in Hallstahammar

This chart illustrates the average monthly humidity levels in Hallstahammar, 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 Hallstahammar is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%88%82%71%69%67%73%83%89%91%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Hallstahammar

In Hallstahammar 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 Hallstahammar.

Maximum UV Index Levels in Hallstahammar for May

The chart shows the monthly maximum UV Index (UVI) for Hallstahammar 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 Hallstahammar typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457754211
Data source: Hallstahammar 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 Hallstahammar Compares to Other Months

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

This table compares monthly weather conditions in Hallstahammar, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)37 mm (1.4 inches)91%low
February Weather-1°C (30°F)33 mm (1.3 inches)89%low
March Weather2°C (35°F)40 mm (1.6 inches)88%moderate
April Weather5°C (42°F)30 mm (1.2 inches)82%moderate
May Weather11°C (52°F)60 mm (2.4 inches)71%moderate
June Weather17°C (63°F)58 mm (2.3 inches)69%high
July Weather18°C (65°F)59 mm (2.3 inches)67%high
August Weather17°C (62°F)80 mm (3.2 inches)72%moderate
September Weather12°C (54°F)63 mm (2.5 inches)83%moderate
October Weather7°C (46°F)75 mm (3.0 inches)89%low
November Weather3°C (38°F)49 mm (1.9 inches)91%low
December Weather0°C (32°F)57 mm (2.3 inches)90%low

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