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May Weather in Hermiswil, Switzerland

Last updated: August 27, 2025

In May, the average temperature in Hermiswil, Switzerland hovers around 11°C (51°F). Expect a chill with minimums dropping to -5°C (23°F), while the mercury can soar to a pleasant 28°C (82°F). Be prepared for some weather, as precipitation averages 182 mm (7.2 in) across 19 days, and the average humidity sits at a muggy 80%.

May Temperature in Hermiswil

In May in Hermiswil, the average temperature is 11°C (51°F). The maximum can reach 28°C (82°F), while the minimum can drop as low as -5°C (23°F). Travelers should be prepared for a wide range of temperatures to fully enjoy their visit.

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

The chart illustrates May temperature patterns in Hermiswil, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hermiswil, May typically has an average temperature of 11°C (51°F), with highs reaching up to 28°C (82°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec293338455160626255473732
Data source: Temperature data for Hermiswil 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 Hermiswil

In Hermiswil in May, the precipitation amount is 182 mm (7.2 in) over a period of 19 days.

May Precipitation Trends in Hermiswil

The chart displays monthly precipitation patterns in Hermiswil, 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 Hermiswil, May typically receives around 182 mm (7.2 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec113991218818219819717610512294169
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Hermiswil

In Hermiswil in May humidity is 80%. With an average temperature of 11°C (51°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities feel heavier and less enjoyable for traveling.

May Average Humidity in Hermiswil

This chart illustrates the average monthly humidity levels in Hermiswil, 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 Hermiswil is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%84%80%82%82%77%81%89%89%91%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Hermiswil

In Hermiswil 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 Hermiswil.

Maximum UV Index Levels in Hermiswil for May

The chart shows the monthly maximum UV Index (UVI) for Hermiswil 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 Hermiswil typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Hermiswil 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 Hermiswil Compares to Other Months

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

This table compares monthly weather conditions in Hermiswil, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)113 mm (4.5 inches)91%low
February Weather1°C (34°F)99 mm (3.9 inches)89%moderate
March Weather3°C (39°F)121 mm (4.7 inches)87%high
April Weather7°C (45°F)88 mm (3.5 inches)84%high
May Weather11°C (51°F)182 mm (7.2 inches)80%very high
June Weather16°C (60°F)197 mm (7.8 inches)82%very high
July Weather17°C (63°F)197 mm (7.8 inches)82%very high
August Weather17°C (62°F)176 mm (6.9 inches)77%very high
September Weather13°C (55°F)105 mm (4.1 inches)81%high
October Weather8°C (48°F)122 mm (4.8 inches)89%moderate
November Weather3°C (38°F)94 mm (3.7 inches)89%moderate
December Weather0°C (32°F)169 mm (6.7 inches)91%low

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