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May Weather in San Rafael, Mexico

Last updated: August 27, 2025

In San Rafael, Mexico, the average temperature for May hovers around 18°C (65°F). However, be prepared for a wide range of temperatures, with minimums dipping to 2°C (36°F) and maximums soaring up to 32°C (91°F). On average, you can expect 9 mm (0.3 in) of precipitation over 2 days, accompanied by a comfortable average humidity of 47%.

May Temperature in San Rafael

In May in San Rafael, the average temperature is 18°C (65°F). Maximums can reach 32°C (91°F), and minimums can drop as low as 2°C (36°F). Be prepared for a wide range of temperatures, making layered clothing a great choice for your travels.

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 18°C (65°F), with highs reaching up to 32°C (91°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec474854606570676865615447
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 9 mm (0.3 in) over a period of 2 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 9 mm (0.3 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec3550396980241167108454534
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 47%. With an average temperature of 18°C (65°F), this humidity feels like a comfortable embrace, making it an ideal time for exploring the local sights and enjoying outdoor activities without overwhelming discomfort.

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 47%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%67%60%51%47%50%70%82%82%78%78%81%
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 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 Rafael, you can check here.

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 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79111414141313131186
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 Weather8°C (47°F)35 mm (1.4 inches)74%high
February Weather9°C (49°F)50 mm (2.0 inches)67%very high
March Weather12°C (54°F)39 mm (1.5 inches)60%extreme
April Weather15°C (60°F)6 mm (0.2 inches)51%extreme
May Weather18°C (65°F)9 mm (0.3 inches)47%extreme
June Weather21°C (71°F)80 mm (3.2 inches)50%extreme
July Weather19°C (67°F)241 mm (9.5 inches)70%extreme
August Weather20°C (68°F)167 mm (6.6 inches)81%extreme
September Weather19°C (66°F)108 mm (4.3 inches)82%extreme
October Weather16°C (62°F)45 mm (1.8 inches)78%extreme
November Weather12°C (55°F)45 mm (1.8 inches)78%very high
December Weather9°C (48°F)34 mm (1.3 inches)80%high

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