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May Weather in Sankt Stephan, Switzerland

Last updated: August 27, 2025

In Sankt Stephan, Switzerland, the average temperature in May is a brisk 7°C (44°F). Temperatures can swing dramatically, with a minimum of -11°C (12°F) and a maximum of 24°C (75°F). Visitors can expect precipitation totaling 223 mm (8.8 in) over 21 days, contributing to a relatively high average humidity of 80%.

May Temperature in Sankt Stephan

In May in Sankt Stephan, the average temperature is 7°C (44°F), with maximums reaching 24°C (75°F) and minimums dropping as low as -11°C (12°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

May Weather in Sankt Stephan: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Sankt Stephan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sankt Stephan, May typically has an average temperature of 7°C (44°F), with highs reaching up to 24°C (75°F) and lows dropping to around -11°C (12°F).
JanFebMarAprMayJunJulAugSepOctNovDec192630374454565549413022
Data source: Temperature data for Sankt Stephan 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 Sankt Stephan

In Sankt Stephan in May, the total precipitation amount is 223 mm (8.8 in) spread over a period of 21 days.

May Precipitation Trends in Sankt Stephan

The chart displays monthly precipitation patterns in Sankt Stephan, 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 Sankt Stephan, May typically receives around 223 mm (8.8 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec17413216199223184224196131151107248
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Sankt Stephan

In Sankt Stephan in May humidity is 80%. With an average temperature of 7°C (44°F), this humidity feels like a chilly dampness that clings to your skin, making it essential to dress in layers and be prepared for a slightly uncomfortable but invigorating travel experience.

May Average Humidity in Sankt Stephan

This chart illustrates the average monthly humidity levels in Sankt Stephan, 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 Sankt Stephan 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 Sankt Stephan

In Sankt Stephan in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Sankt Stephan.

Maximum UV Index Levels in Sankt Stephan for May

The chart shows the monthly maximum UV Index (UVI) for Sankt Stephan 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 Sankt Stephan typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec347810111097632
Data source: Sankt Stephan 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 Sankt Stephan Compares to Other Months

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

This table compares monthly weather conditions in Sankt Stephan, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)174 mm (6.8 inches)91%moderate
February Weather-3°C (26°F)132 mm (5.2 inches)89%moderate
March Weather-1°C (31°F)161 mm (6.3 inches)87%high
April Weather3°C (37°F)99 mm (3.9 inches)84%very high
May Weather7°C (44°F)223 mm (8.8 inches)80%very high
June Weather12°C (54°F)184 mm (7.2 inches)82%extreme
July Weather13°C (56°F)224 mm (8.8 inches)82%very high
August Weather13°C (55°F)196 mm (7.7 inches)77%very high
September Weather9°C (49°F)131 mm (5.1 inches)81%high
October Weather5°C (41°F)151 mm (5.9 inches)89%high
November Weather-1°C (31°F)107 mm (4.2 inches)89%moderate
December Weather-6°C (22°F)248 mm (9.8 inches)91%low

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