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May Weather in Giornico, Switzerland

Last updated: August 27, 2025

In May, the average temperature in Giornico, Switzerland hovers around 4°C (39°F), with a minimum dip to -11°C (13°F) and a max reaching 17°C (64°F). Expect 165 mm (6.5 in) of precipitation spread over 19 days, accompanied by an average humidity level of 80%. Prepare for a cool and wet month!

May Temperature in Giornico

In May in Giornico, the average temperature is 4°C (39°F). The maximum can reach 17°C (64°F), while the minimum can drop to as low as -11°C (13°F). Visitors should be prepared for a mix of chilly days and milder afternoons, making it essential to pack layers for their trip.

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

The chart illustrates May temperature patterns in Giornico, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Giornico, May typically has an average temperature of 4°C (39°F), with highs reaching up to 17°C (64°F) and lows dropping to around -11°C (13°F).
JanFebMarAprMayJunJulAugSepOctNovDec162125323950535245372619
Data source: Temperature data for Giornico 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 Giornico

In Giornico in May, the precipitation amount is 165 mm (6.5 in) over the course of 19 days.

May Precipitation Trends in Giornico

The chart displays monthly precipitation patterns in Giornico, 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 Giornico, May typically receives around 165 mm (6.5 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec10972115130165200205260149221158161
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Giornico

In Giornico in May, humidity is 80%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring extra layers to stay warm while navigating through the misty streets.

May Average Humidity in Giornico

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

In Giornico 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 Giornico.

Maximum UV Index Levels in Giornico for May

The chart shows the monthly maximum UV Index (UVI) for Giornico 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 Giornico typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24689101097532
Data source: Giornico 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 Giornico Compares to Other Months

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

This table compares monthly weather conditions in Giornico, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)109 mm (4.3 inches)92%low
February Weather-6°C (21°F)72 mm (2.8 inches)89%moderate
March Weather-4°C (25°F)115 mm (4.5 inches)87%high
April Weather0°C (32°F)130 mm (5.1 inches)84%very high
May Weather4°C (39°F)165 mm (6.5 inches)80%very high
June Weather10°C (50°F)200 mm (7.9 inches)82%very high
July Weather12°C (53°F)205 mm (8.1 inches)83%very high
August Weather11°C (52°F)260 mm (10.2 inches)80%very high
September Weather7°C (46°F)149 mm (5.9 inches)83%high
October Weather3°C (37°F)221 mm (8.7 inches)90%moderate
November Weather-3°C (26°F)158 mm (6.2 inches)88%moderate
December Weather-7°C (19°F)161 mm (6.3 inches)90%low

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