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May Weather in San Rafael, Mexico

Last updated: August 27, 2025

In May, the average temperature in San Rafael, Mexico is a comfortable 25°C (76°F). However, temperatures can vary significantly, ranging from a cool 13°C (55°F) to a sizzling 40°C (103°F). Expect about 56 mm (2.2 in) of precipitation over 14 days, accompanied by an average humidity of 82%. Stay prepared for a mix of warm days and the occasional shower!

May Temperature in San Rafael

In May in San Rafael, the average temperature is 25°C (76°F). Maximums can reach 40°C (103°F) and minimums can be as low as 13°C (55°F). This makes it an ideal time for travelers to enjoy both warm days and cool evenings.

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 25°C (76°F), with highs reaching up to 40°C (103°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec596368737675747472696360
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 precipitation amount is 56 mm (2.2 in) over a span of 14 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 56 mm (2.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec20212524561321221031781544115
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 82%. With an average temperature of 25°C (76°F), this humidity feels like a warm, heavy blanket enveloping you, making travel feel sticky and exhausting as you navigate through the air that clings to your skin.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%83%80%82%79%72%74%84%92%91%91%
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.
JanFebMarAprMayJunJulAugSepOctNovDec810131413131413131197
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 Weather15°C (59°F)20 mm (0.8 inches)88%very high
February Weather17°C (63°F)21 mm (0.8 inches)86%very high
March Weather20°C (68°F)25 mm (1.0 inches)83%extreme
April Weather23°C (73°F)24 mm (0.9 inches)80%extreme
May Weather25°C (76°F)56 mm (2.2 inches)82%extreme
June Weather24°C (75°F)132 mm (5.2 inches)79%extreme
July Weather23°C (74°F)122 mm (4.8 inches)72%extreme
August Weather24°C (75°F)103 mm (4.1 inches)74%extreme
September Weather22°C (73°F)178 mm (7.0 inches)84%extreme
October Weather20°C (69°F)154 mm (6.1 inches)92%extreme
November Weather17°C (64°F)41 mm (1.6 inches)91%very high
December Weather15°C (60°F)15 mm (0.6 inches)91%high

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