May Weather in Del Rio, United States

Last updated: June 24, 2025

In May, the average temperature in Del Rio, United States is a pleasant 21°C (70°F). However, be prepared for temperature fluctuations, with a minimum of 7°C (44°F) and a maximum soaring to 40°C (104°F). Expect 21 mm (0.8 in) of precipitation spread across about 2 days, along with an average humidity level of 71%.

May Temperature in Del Rio

In May in Del Rio, the average temperature is 21°C (70°F), with maximums reaching up to 40°C (104°F) and minimums dropping as low as 7°C (44°F). Be sure to pack for both warm days and cooler evenings while exploring this diverse destination.

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

The chart illustrates May temperature patterns in Del Rio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Del Rio, May typically has an average temperature of 21°C (70°F), with highs reaching up to 40°C (104°F) and lows dropping to around 7°C (44°F).

Data source: Temperature data for Del Rio generated using information from the Copernicus Climate Change Service.

May Precipitation in Del Rio

In Del Rio in May, the precipitation amount is 21 mm (0.8 in) over a period of 2 days.

May Precipitation Trends in Del Rio

The chart displays monthly precipitation patterns in Del Rio, 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 Del Rio, May typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 2 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Del Rio

In Del Rio in May, humidity is 71%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace, making outdoor activities feel slightly heavy and requiring regular breaks to stay refreshed while exploring.

May Average Humidity in Del Rio

This chart illustrates the average monthly humidity levels in Del Rio, 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 Del Rio is approximately 71%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Del Rio

In Del Rio in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Del Rio.

Maximum UV Index Levels in Del Rio for May

The chart shows the monthly maximum UV Index (UVI) for Del Rio 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 Del Rio typically reaches 10, which falls under the very high exposure category.

Data source: Del Rio 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 Del Rio Compares to Other Months

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

This table compares monthly weather conditions in Del Rio, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	99 mm (3.9 inches)	82%	moderate
February Weather	11°C (52°F)	78 mm (3.1 inches)	84%	moderate
March Weather	13°C (57°F)	87 mm (3.4 inches)	82%	very high
April Weather	17°C (63°F)	37 mm (1.5 inches)	78%	very high
May Weather	21°C (70°F)	21 mm (0.8 inches)	71%	very high
June Weather	25°C (77°F)	2 mm (0.1 inches)	64%	extreme
July Weather	26°C (80°F)	0 mm (0.0 inches)	58%	extreme
August Weather	26°C (78°F)	0 mm (0.0 inches)	54%	very high
September Weather	23°C (74°F)	2 mm (0.1 inches)	55%	very high
October Weather	18°C (65°F)	21 mm (0.8 inches)	62%	high
November Weather	13°C (56°F)	41 mm (1.6 inches)	78%	moderate
December Weather	10°C (50°F)	90 mm (3.5 inches)	80%	moderate