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May Weather in Primero de Mayo, Mexico

Last updated: August 27, 2025

In Primero de Mayo, Mexico, the average temperature in May hovers around 29°C (84°F). However, be prepared for a range, as temperatures can dip to a chilly 14°C (58°F) or soar to a sweltering 44°C (111°F). Expect 40 mm (1.6 in) of precipitation spread over approximately 9 days, coupled with a high average humidity of 79%.

May Temperature in Primero de Mayo

In May in Primero de Mayo, the average temperature is 29°C (84°F), with maximums reaching 44°C (111°F) and minimums dropping to as low as 14°C (58°F). This range makes it essential for travelers to pack accordingly, ensuring they are prepared for both the heat and cooler evenings.

May Weather in Primero de Mayo: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Primero de Mayo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Primero de Mayo, May typically has an average temperature of 29°C (84°F), with highs reaching up to 44°C (111°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec576271788488888982756560
Data source: Temperature data for Primero de Mayo 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 Primero de Mayo

In Primero de Mayo in May, the precipitation amount is 40 mm (1.6 in) over the course of 9 days.

May Precipitation Trends in Primero de Mayo

The chart displays monthly precipitation patterns in Primero de Mayo, 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 Primero de Mayo, May typically receives around 40 mm (1.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec8812154028472998411516
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Primero de Mayo

In Primero de Mayo in May, humidity is 79%. With an average temperature of 29°C (84°F), this humidity feels like a steamy blanket enveloping you, making every step feel heavier and more labored, which can be quite challenging for traveling.

May Average Humidity in Primero de Mayo

This chart illustrates the average monthly humidity levels in Primero de Mayo, 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 Primero de Mayo is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%74%75%74%79%77%64%61%77%83%85%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Primero de Mayo

In Primero de Mayo in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Primero de Mayo.

Maximum UV Index Levels in Primero de Mayo for May

The chart shows the monthly maximum UV Index (UVI) for Primero de Mayo 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 Primero de Mayo typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6910121212121211975
Data source: Primero de Mayo 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 Primero de Mayo Compares to Other Months

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

This table compares monthly weather conditions in Primero de Mayo, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (58°F)8 mm (0.3 inches)83%high
February Weather17°C (63°F)8 mm (0.3 inches)74%very high
March Weather22°C (71°F)12 mm (0.5 inches)75%very high
April Weather25°C (78°F)15 mm (0.6 inches)74%extreme
May Weather29°C (84°F)40 mm (1.6 inches)79%extreme
June Weather31°C (88°F)28 mm (1.1 inches)77%extreme
July Weather31°C (89°F)47 mm (1.8 inches)64%extreme
August Weather32°C (89°F)29 mm (1.1 inches)61%extreme
September Weather28°C (83°F)97 mm (3.8 inches)77%extreme
October Weather24°C (75°F)41 mm (1.6 inches)83%very high
November Weather19°C (66°F)15 mm (0.6 inches)85%high
December Weather16°C (60°F)16 mm (0.6 inches)89%moderate

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