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May Weather in San Sebastian de las Grutas, Mexico

Last updated: August 27, 2025

In May, the average temperature in San Sebastian de las Grutas, Mexico is a pleasant 18°C (65°F). However, be prepared for a temperature range that can dip as low as 9°C (48°F) and soar to a comfortable 30°C (86°F). With 154 mm (6.1 in) of precipitation spread over 20 days, it's wise to have a raincoat handy. The air is often humid, with an average humidity of 72%, creating a balmy atmosphere throughout the month.

May Temperature in San Sebastian de las Grutas

In May in San Sebastian de las Grutas, the average temperature is 18°C (65°F). The maximum can reach 30°C (86°F) and the minimum can be as low as 9°C (48°F). This makes it a pleasant time to visit, perfect for enjoying outdoor activities and exploring the local attractions.

May Weather in San Sebastian de las Grutas: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in San Sebastian de las Grutas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Sebastian de las Grutas, May typically has an average temperature of 18°C (65°F), with highs reaching up to 30°C (86°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec596163646563636363636159
Data source: Temperature data for San Sebastian de las Grutas 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 Sebastian de las Grutas

In San Sebastian de las Grutas in May, the total precipitation amount is 154 mm (6.1 in) over the course of 20 days.

May Precipitation Trends in San Sebastian de las Grutas

The chart displays monthly precipitation patterns in San Sebastian de las Grutas, 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 Sebastian de las Grutas, May typically receives around 154 mm (6.1 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec6429741543232203003832192611
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in San Sebastian de las Grutas

In San Sebastian de las Grutas in May humidity is 72%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace, making traveling somewhat uncomfortable as the air clings to your skin and the heat can be stifling, yet it's perfect for enjoying leisurely strolls under the shade.

May Average Humidity in San Sebastian de las Grutas

This chart illustrates the average monthly humidity levels in San Sebastian de las Grutas, 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 Sebastian de las Grutas is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%80%73%67%72%73%76%80%84%89%88%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in San Sebastian de las Grutas

In San Sebastian de las Grutas in May, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in San Sebastian de las Grutas.

Maximum UV Index Levels in San Sebastian de las Grutas for May

The chart shows the monthly maximum UV Index (UVI) for San Sebastian de las Grutas 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 Sebastian de las Grutas typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10131515151515141413119
Data source: San Sebastian de las Grutas 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 Sebastian de las Grutas Compares to Other Months

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

This table compares monthly weather conditions in San Sebastian de las Grutas, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)6 mm (0.2 inches)84%very high
February Weather16°C (61°F)3 mm (0.1 inches)80%extreme
March Weather17°C (64°F)29 mm (1.1 inches)73%extreme
April Weather18°C (65°F)74 mm (2.9 inches)67%extreme
May Weather18°C (65°F)154 mm (6.1 inches)72%extreme
June Weather17°C (64°F)323 mm (12.7 inches)73%extreme
July Weather17°C (64°F)220 mm (8.7 inches)76%extreme
August Weather17°C (63°F)300 mm (11.8 inches)80%extreme
September Weather17°C (63°F)383 mm (15.1 inches)84%extreme
October Weather17°C (63°F)219 mm (8.6 inches)89%extreme
November Weather16°C (61°F)26 mm (1.0 inches)88%extreme
December Weather15°C (59°F)11 mm (0.4 inches)88%very high

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