August Weather in Rio Grande, Mexico

Last updated: August 27, 2025

In August, the average temperature in Rio Grande, Mexico hovers around 20°C (68°F), with a pleasant range that dips to a minimum of 13°C (55°F) and can soar to a maximum of 30°C (85°F). Expect about 175 mm (6.9 in) of rain spread over 23 days, contributing to an average humidity of 68%.

August Temperature in Rio Grande

In August in Rio Grande, the average temperature is 20°C (68°F). Maximums can reach 30°C (85°F), and minimums can be as low as 13°C (55°F). This mild climate makes it an ideal time to explore and enjoy outdoor activities in Rio Grande.

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

The chart illustrates August 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, August typically has an average temperature of 20°C (68°F), with highs reaching up to 30°C (85°F) and lows dropping to around 13°C (55°F).

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

August Precipitation in Rio Grande

In Rio Grande in August, the precipitation amount is 175 mm (6.9 in) over the course of 23 days.

August Precipitation Trends in Rio Grande

The chart displays monthly precipitation patterns in Rio Grande, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Rio Grande, August typically receives around 175 mm (6.9 inches) of precipitation spread over approximately 23 days.

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

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Millimeters (mm) Inches (in)

August Humidity in Rio Grande

In Rio Grande in August humidity is 68%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls while also prompting travelers to stay hydrated and seek out refreshing breaks from the heat.

August Average Humidity in Rio Grande

This chart illustrates the average monthly humidity levels in Rio Grande, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Rio Grande is approximately 68%, offering insight into how humid the weather typically is during this month.

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

August UV Index in Rio Grande

In Rio Grande in August, 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 Rio Grande.

Maximum UV Index Levels in Rio Grande for August

The chart shows the monthly maximum UV Index (UVI) for Rio Grande in August, 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 August, the maximum UV index in Rio Grande typically reaches 13, which falls under the extreme exposure category.

Data source: Rio Grande August 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 August 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 August’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 August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (60°F)	6 mm (0.2 inches)	74%	very high
February Weather	18°C (64°F)	10 mm (0.4 inches)	65%	extreme
March Weather	21°C (69°F)	6 mm (0.2 inches)	58%	extreme
April Weather	22°C (73°F)	3 mm (0.1 inches)	58%	extreme
May Weather	24°C (75°F)	31 mm (1.2 inches)	67%	extreme
June Weather	22°C (72°F)	145 mm (5.7 inches)	76%	extreme
July Weather	20°C (68°F)	203 mm (8.0 inches)	67%	extreme
August Weather	20°C (68°F)	175 mm (6.9 inches)	68%	extreme
September Weather	20°C (68°F)	175 mm (6.9 inches)	81%	extreme
October Weather	19°C (67°F)	65 mm (2.6 inches)	83%	extreme
November Weather	17°C (64°F)	24 mm (0.9 inches)	84%	very high
December Weather	15°C (60°F)	3 mm (0.1 inches)	81%	very high