March Weather in Rio Grande, Mexico

Last updated: August 27, 2025

In March, the average temperature in Rio Grande, Mexico is a pleasant 19°C (66°F). You can expect temperatures to range from a cool 3°C (38°F) to a warm 34°C (93°F). With an average humidity of 49%, the climate is fairly comfortable. Be prepared for a little rain, as there’s an anticipated 6 mm (0.2 in) of precipitation spread over 1 day.

March Temperature in Rio Grande

In March in Rio Grande, the average temperature is 19°C (66°F). Maximums can reach 34°C (93°F), while minimums can dip to as low as 3°C (38°F). This variability makes Rio Grande a great destination for travelers who enjoy diverse weather experiences.

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

The chart illustrates March 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, March typically has an average temperature of 19°C (66°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (38°F).

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

March Precipitation in Rio Grande

In Rio Grande in March, the precipitation amount is 6 mm (0.2 in) over the course of 1 day.

March Precipitation Trends in Rio Grande

The chart displays monthly precipitation patterns in Rio Grande, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Rio Grande, March typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 1 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Rio Grande

In Rio Grande in March, humidity is 49%. With an average temperature of 19°C (66°F), this humidity feels like a refreshing breeze that envelops you, making it pleasant for traveling as long as you're prepared for the slight stickiness in the air.

March Average Humidity in Rio Grande

This chart illustrates the average monthly humidity levels in Rio Grande, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Rio Grande is approximately 49%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Rio Grande

In Rio Grande in March, 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 March

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

Data source: Rio Grande March 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 March 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 March’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 March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (55°F)	15 mm (0.6 inches)	71%	very high
February Weather	15°C (60°F)	11 mm (0.4 inches)	64%	extreme
March Weather	19°C (66°F)	6 mm (0.2 inches)	49%	extreme
April Weather	21°C (70°F)	8 mm (0.3 inches)	47%	extreme
May Weather	23°C (74°F)	13 mm (0.5 inches)	55%	extreme
June Weather	23°C (74°F)	47 mm (1.8 inches)	77%	extreme
July Weather	21°C (70°F)	109 mm (4.3 inches)	82%	extreme
August Weather	22°C (71°F)	49 mm (1.9 inches)	83%	extreme
September Weather	19°C (67°F)	100 mm (3.9 inches)	86%	extreme
October Weather	19°C (66°F)	45 mm (1.8 inches)	83%	extreme
November Weather	16°C (60°F)	13 mm (0.5 inches)	80%	very high
December Weather	13°C (55°F)	8 mm (0.3 inches)	83%	very high