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May Weather in San Martin, Mexico

Last updated: August 27, 2025

In May, the average temperature in San Martin, Mexico reaches a pleasant 22°C (72°F), with a minimum of 14°C (57°F) and a maximum soaring to 33°C (91°F). Expect 116 mm (4.6 in) of precipitation spread over 17 days, contributing to an average humidity of 73%. Whether you're exploring the outdoors or enjoying indoor activities, San Martin promises a balance of warmth and refreshing rain this month!

May Temperature in San Martin

In May in San Martin, the average temperature is 22°C (72°F). Maximums can reach 33°C (91°F) and minimums can be as low as 14°C (57°F). This makes it a comfortable time for traveling, with pleasant days and cooler nights.

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

The chart illustrates May temperature patterns in San Martin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Martin, May typically has an average temperature of 22°C (72°F), with highs reaching up to 33°C (91°F) and lows dropping to around 14°C (57°F).
JanFebMarAprMayJunJulAugSepOctNovDec656770717269696968696765
Data source: Temperature data for San 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 San Martin

In San Martin in May, the precipitation amount is 116 mm (4.6 in) spread over 17 days.

May Precipitation Trends in San Martin

The chart displays monthly precipitation patterns in San 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 San Martin, May typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec1147231163543394694182325415
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Martin

In San Martin in May, humidity is 73%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace that can make outdoor activities feel sticky and heavy, so it's best to stay hydrated and take frequent breaks while exploring.

May Average Humidity in San Martin

This chart illustrates the average monthly humidity levels in San 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 San Martin is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%61%59%62%73%78%79%82%82%79%72%70%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Martin

In San Martin in May, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Martin, you can check here.

Maximum UV Index Levels in San Martin for May

The chart shows the monthly maximum UV Index (UVI) for San 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 San Martin typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141414141412109
Data source: San 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 San Martin Compares to Other Months

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

This table compares monthly weather conditions in San Martin, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather19°C (66°F)11 mm (0.4 inches)65%very high
February Weather20°C (67°F)4 mm (0.1 inches)61%extreme
March Weather21°C (70°F)7 mm (0.3 inches)59%extreme
April Weather22°C (71°F)23 mm (0.9 inches)62%extreme
May Weather22°C (72°F)116 mm (4.6 inches)73%extreme
June Weather21°C (69°F)354 mm (13.9 inches)78%extreme
July Weather21°C (69°F)339 mm (13.3 inches)79%extreme
August Weather20°C (69°F)469 mm (18.5 inches)82%extreme
September Weather20°C (69°F)418 mm (16.5 inches)82%extreme
October Weather20°C (69°F)232 mm (9.1 inches)79%extreme
November Weather20°C (68°F)54 mm (2.1 inches)72%very high
December Weather19°C (66°F)15 mm (0.6 inches)70%very high

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