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May Weather in San Rafael, Mexico

Last updated: August 27, 2025

In San Rafael, Mexico, the average temperature in May typically reaches a warm 29°C (85°F). During this time, temperatures can fluctuate between a refreshing 18°C (65°F) and a scorching 40°C (104°F). Expect about 32 mm (1.3 in) of precipitation over 6 days, accompanied by an average humidity of 72%, creating a tropical feel in the air.

May Temperature in San Rafael

In May in San Rafael, the average temperature is 29°C (85°F). Maximums can reach 40°C (104°F) and minimums can be as low as 18°C (65°F). It’s advisable to pack light clothing and stay hydrated while exploring the warm and varied climate.

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

The chart illustrates May temperature patterns in San Rafael, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Rafael, May typically has an average temperature of 29°C (85°F), with highs reaching up to 40°C (104°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec747780838583838383817876
Data source: Temperature data for San Rafael 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 Rafael

In San Rafael in May, the total precipitation amount is 32 mm (1.3 in) over the course of 6 days.

May Precipitation Trends in San Rafael

The chart displays monthly precipitation patterns in San Rafael, 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 Rafael, May typically receives around 32 mm (1.3 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec208315321545585821092616
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Rafael

In San Rafael in May humidity is 72%. With an average temperature of 29°C (85°F), this humidity feels like a warm, sticky embrace that can make traveling feel quite exhausting. You may find yourself needing to take frequent breaks in the shade and staying hydrated as the muggy air wraps around you, making every step a little heavier.

May Average Humidity in San Rafael

This chart illustrates the average monthly humidity levels in San Rafael, 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 Rafael is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%80%76%74%72%73%77%77%76%77%81%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Rafael

In San Rafael in May, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in San Rafael.

Maximum UV Index Levels in San Rafael for May

The chart shows the monthly maximum UV Index (UVI) for San Rafael 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 Rafael typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131313131312121187
Data source: San Rafael 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 Rafael Compares to Other Months

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

This table compares monthly weather conditions in San Rafael, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (75°F)20 mm (0.8 inches)79%very high
February Weather25°C (78°F)8 mm (0.3 inches)80%very high
March Weather26°C (80°F)3 mm (0.1 inches)76%extreme
April Weather28°C (83°F)15 mm (0.6 inches)74%extreme
May Weather29°C (85°F)32 mm (1.3 inches)72%extreme
June Weather28°C (83°F)154 mm (6.1 inches)73%extreme
July Weather29°C (84°F)55 mm (2.1 inches)77%extreme
August Weather28°C (83°F)85 mm (3.4 inches)77%extreme
September Weather28°C (83°F)82 mm (3.2 inches)75%extreme
October Weather27°C (82°F)109 mm (4.3 inches)76%extreme
November Weather25°C (78°F)26 mm (1.0 inches)81%very high
December Weather24°C (76°F)16 mm (0.6 inches)84%high

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