nomadseason

May Weather in Rio Grande, Mexico

Last updated: August 27, 2025

In Rio Grande, Mexico, the average temperature in May is a pleasant 23°C (74°F). Temperatures can fluctuate, with a minimum of 9°C (49°F) and a maximum of 36°C (97°F). Expect 13 mm (0.5 in) of precipitation over about 3 days in the month, while the average humidity sits around 55%. Get ready for a varied climate filled with warmth and refreshing breezes!

May Temperature in Rio Grande

In May in Rio Grande, the average temperature is 23°C (74°F). Maximums can reach 36°C (97°F) and minimums can be as low as 9°C (49°F). This weather makes Rio Grande an ideal destination for travelers seeking warm daytime activities and cooler evenings for outdoor adventures.

May Weather in Rio Grande: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Rio Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Grande, May typically has an average temperature of 23°C (74°F), with highs reaching up to 36°C (97°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec556066707473707167656055
Data source: Temperature data for Rio Grande generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Rio Grande

In Rio Grande in May, the precipitation amount is 13 mm (0.5 in) over a span of 3 days.

May Precipitation Trends in Rio Grande

The chart displays monthly precipitation patterns in Rio Grande, 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 Rio Grande, May typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec16116813471095010045138
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Rio Grande

In Rio Grande in May humidity is 55%. With an average temperature of 23°C (74°F), this humidity feels like a warm embrace, creating a comfortable atmosphere for exploring the sights and indulging in outdoor activities.

May Average Humidity in Rio Grande

This chart illustrates the average monthly humidity levels in Rio Grande, 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 Rio Grande is approximately 55%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%64%49%47%55%77%82%83%86%83%80%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Rio Grande

In Rio Grande 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 Rio Grande.

Maximum UV Index Levels in Rio Grande for May

The chart shows the monthly maximum UV Index (UVI) for Rio Grande 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 Rio Grande typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec811131515141414141298
Data source: Rio Grande 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 Rio Grande Compares to Other Months

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

This table compares monthly weather conditions in Rio Grande, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)15 mm (0.6 inches)71%very high
February Weather15°C (60°F)11 mm (0.4 inches)64%extreme
March Weather19°C (66°F)6 mm (0.2 inches)49%extreme
April Weather21°C (70°F)8 mm (0.3 inches)47%extreme
May Weather23°C (74°F)13 mm (0.5 inches)55%extreme
June Weather23°C (74°F)47 mm (1.8 inches)77%extreme
July Weather21°C (70°F)109 mm (4.3 inches)82%extreme
August Weather22°C (71°F)49 mm (1.9 inches)83%extreme
September Weather19°C (67°F)100 mm (3.9 inches)86%extreme
October Weather19°C (66°F)45 mm (1.8 inches)83%extreme
November Weather16°C (60°F)13 mm (0.5 inches)80%very high
December Weather13°C (55°F)8 mm (0.3 inches)83%very high

Compare Rio Grande's Climate with Cities Worldwide