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May Weather in Trun, Switzerland

Last updated: August 27, 2025

In Trun, Switzerland, the average temperature in May hovers around 5°C (42°F). Expect chilly days, with minimums plunging to -11°C (13°F) and maximums reaching a mild 21°C (71°F). During this time, the area sees 153 mm (6.0 in) of precipitation spread over 21 days, contributing to a consistently high average humidity of 80%.

May Temperature in Trun

In May in Trun, the average temperature is 5°C (42°F). The maximum can reach 21°C (71°F), while the minimum can drop as low as -11°C (13°F). Be sure to pack for a wide range of temperatures when traveling!

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

The chart illustrates May temperature patterns in Trun, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trun, May typically has an average temperature of 5°C (42°F), with highs reaching up to 21°C (71°F) and lows dropping to around -11°C (13°F).
JanFebMarAprMayJunJulAugSepOctNovDec182328344152545347392821
Data source: Temperature data for Trun 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 Trun

In Trun in May, the precipitation amount is 153 mm (6.0 in) spread over 21 days.

May Precipitation Trends in Trun

The chart displays monthly precipitation patterns in Trun, 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 Trun, May typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec12283118100153179199261161166114162
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Trun

In Trun in May humidity is 80%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that can seep into your bones, making outdoor adventures uncomfortable and urging travelers to seek warm shelter often.

May Average Humidity in Trun

This chart illustrates the average monthly humidity levels in Trun, 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 Trun is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Trun

In Trun in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Trun.

Maximum UV Index Levels in Trun for May

The chart shows the monthly maximum UV Index (UVI) for Trun 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 Trun typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24789101097532
Data source: Trun 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 Trun Compares to Other Months

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

This table compares monthly weather conditions in Trun, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)122 mm (4.8 inches)92%low
February Weather-5°C (24°F)83 mm (3.3 inches)89%moderate
March Weather-2°C (28°F)118 mm (4.6 inches)87%high
April Weather1°C (34°F)100 mm (3.9 inches)84%very high
May Weather5°C (42°F)153 mm (6.0 inches)80%very high
June Weather11°C (52°F)179 mm (7.1 inches)82%very high
July Weather12°C (54°F)199 mm (7.8 inches)83%very high
August Weather12°C (54°F)261 mm (10.3 inches)80%very high
September Weather8°C (47°F)161 mm (6.4 inches)83%high
October Weather4°C (40°F)166 mm (6.5 inches)90%moderate
November Weather-2°C (28°F)114 mm (4.5 inches)88%moderate
December Weather-6°C (21°F)162 mm (6.4 inches)90%low

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