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May Weather in Jaun, Switzerland

Last updated: August 27, 2025

In May, the average temperature in Jaun, Switzerland hovers around 9°C (48°F). Expect a wide range, with minimum temperatures dipping to a chilly -7°C (20°F) and maximums reaching a comfortable 26°C (80°F). Throughout the month, precipitation averages 205 mm (8.1 in) across 21 days, contributing to a high average humidity of 80%. Be prepared for varied weather conditions during your stay!

May Temperature in Jaun

In May in Jaun, the average temperature is 9°C (48°F). Maximums can reach 26°C (80°F), and minimums can drop as low as -7°C (20°F). Be prepared for a wide range of temperatures when traveling to Jaun this month.

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

The chart illustrates May temperature patterns in Jaun, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jaun, May typically has an average temperature of 9°C (48°F), with highs reaching up to 26°C (80°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec242934414857595952443426
Data source: Temperature data for Jaun 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 Jaun

In Jaun in May, the precipitation amount is 205 mm (8.1 in) over a span of 21 days.

May Precipitation Trends in Jaun

The chart displays monthly precipitation patterns in Jaun, 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 Jaun, May typically receives around 205 mm (8.1 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec15011814989205181200180117135109226
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Jaun

In Jaun in May humidity is 80%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel quite uncomfortable.

May Average Humidity in Jaun

This chart illustrates the average monthly humidity levels in Jaun, 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 Jaun 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 Jaun

In Jaun 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 Jaun.

Maximum UV Index Levels in Jaun for May

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

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

This table compares monthly weather conditions in Jaun, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)150 mm (5.9 inches)91%low
February Weather-1°C (30°F)117 mm (4.6 inches)89%moderate
March Weather1°C (34°F)149 mm (5.9 inches)87%high
April Weather5°C (41°F)89 mm (3.5 inches)84%very high
May Weather9°C (48°F)205 mm (8.1 inches)80%very high
June Weather14°C (57°F)181 mm (7.1 inches)82%very high
July Weather15°C (60°F)200 mm (7.9 inches)82%very high
August Weather15°C (59°F)180 mm (7.1 inches)77%very high
September Weather11°C (52°F)117 mm (4.6 inches)81%high
October Weather7°C (44°F)135 mm (5.3 inches)89%moderate
November Weather1°C (34°F)109 mm (4.3 inches)89%moderate
December Weather-3°C (26°F)226 mm (8.9 inches)91%low

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