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May Weather in Saint-Martin, Switzerland

Last updated: August 27, 2025

In May, the average temperature in Saint-Martin, Switzerland hovers around 6°C (43°F), with a notable range from a chilly -16°C (4°F) to a surprisingly warm 22°C (72°F). Expect 160 mm (6.3 in) of precipitation spread over about 20 days, contributing to an average humidity level of 80%. Pack accordingly to stay comfortable in these varied conditions!

May Temperature in Saint-Martin

In May in Saint-Martin, the average temperature is 6°C (43°F), with maximums reaching up to 22°C (72°F) and minimums dipping as low as -16°C (4°F). It's essential to pack layers to enjoy the diverse weather during your travels.

May Weather in Saint-Martin: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Saint-Martin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Martin, May typically has an average temperature of 6°C (43°F), with highs reaching up to 22°C (72°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec162329374353565649412918
Data source: Temperature data for Saint-Martin 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 Saint-Martin

In Saint-Martin in May, the precipitation amount is 160 mm (6.3 in) over the course of 20 days.

May Precipitation Trends in Saint-Martin

The chart displays monthly precipitation patterns in Saint-Martin, 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 Saint-Martin, May typically receives around 160 mm (6.3 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec13596122811601301211299013598188
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Saint-Martin

In Saint-Martin in May humidity is 80%. With an average temperature of 6°C (43°F), this humidity feels like a chilly, damp embrace that can make outdoor exploration quite uncomfortable, often leaving travelers feeling clammy and cold despite the relatively mild temperature.

May Average Humidity in Saint-Martin

This chart illustrates the average monthly humidity levels in Saint-Martin, 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 Saint-Martin 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 Saint-Martin

In Saint-Martin 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 Saint-Martin.

Maximum UV Index Levels in Saint-Martin for May

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

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

This table compares monthly weather conditions in Saint-Martin, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)135 mm (5.3 inches)91%moderate
February Weather-5°C (23°F)95 mm (3.8 inches)89%moderate
March Weather-2°C (29°F)122 mm (4.8 inches)87%high
April Weather3°C (37°F)81 mm (3.2 inches)84%very high
May Weather6°C (43°F)160 mm (6.3 inches)80%very high
June Weather12°C (53°F)130 mm (5.1 inches)82%extreme
July Weather14°C (57°F)121 mm (4.8 inches)82%very high
August Weather13°C (56°F)129 mm (5.1 inches)77%very high
September Weather9°C (49°F)90 mm (3.6 inches)81%high
October Weather5°C (41°F)135 mm (5.3 inches)89%high
November Weather-2°C (29°F)98 mm (3.8 inches)89%moderate
December Weather-8°C (18°F)188 mm (7.4 inches)91%low

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