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May Weather in Castamay, Mexico

Last updated: August 27, 2025

In May, the average temperature in Castamay, Mexico is a warm 30°C (85°F). The weather can vary significantly, with minimums dropping to 19°C (67°F) and maximums soaring up to 40°C (104°F). Expect 34 mm (1.3 in) of precipitation over approximately 8 days, all while enjoying an average humidity of 59%. Stay prepared for a blend of heat and occasional rain!

May Temperature in Castamay

In May in Castamay, the average temperature is 30°C (85°F). Maximums can reach 40°C (104°F), while minimums can drop as low as 19°C (67°F). Be prepared for warm days and cooler evenings when planning your travel.

May Weather in Castamay: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Castamay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castamay, May typically has an average temperature of 30°C (85°F), with highs reaching up to 40°C (104°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec757880848583848383817876
Data source: Temperature data for Castamay 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 Castamay

In Castamay in May, the precipitation amount is 34 mm (1.3 in) over a span of 8 days.

May Precipitation Trends in Castamay

The chart displays monthly precipitation patterns in Castamay, 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 Castamay, May typically receives around 34 mm (1.3 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec18641434205871261351404021
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Castamay

In Castamay in May humidity is 59%. With an average temperature of 30°C (85°F), this humidity feels like a warm, enveloping blanket, making travel feel sticky and sultry, particularly during midday adventures, which can soon lead to a need for frequent breaks in the shade.

May Average Humidity in Castamay

This chart illustrates the average monthly humidity levels in Castamay, 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 Castamay is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%73%64%61%60%59%64%76%80%82%83%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Castamay

In Castamay 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 Castamay.

Maximum UV Index Levels in Castamay for May

The chart shows the monthly maximum UV Index (UVI) for Castamay 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 Castamay typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810131313131313121198
Data source: Castamay 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 Castamay Compares to Other Months

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

This table compares monthly weather conditions in Castamay, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)18 mm (0.7 inches)78%very high
February Weather26°C (78°F)6 mm (0.2 inches)73%very high
March Weather27°C (81°F)4 mm (0.2 inches)64%extreme
April Weather29°C (84°F)14 mm (0.6 inches)61%extreme
May Weather30°C (85°F)34 mm (1.3 inches)59%extreme
June Weather29°C (84°F)205 mm (8.1 inches)59%extreme
July Weather29°C (84°F)87 mm (3.4 inches)64%extreme
August Weather28°C (84°F)126 mm (5.0 inches)76%extreme
September Weather28°C (83°F)135 mm (5.3 inches)80%extreme
October Weather27°C (82°F)140 mm (5.5 inches)82%extreme
November Weather25°C (78°F)40 mm (1.6 inches)83%very high
December Weather24°C (76°F)21 mm (0.8 inches)84%very high

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