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March Weather in Rio Grande City, United States

Last updated: June 24, 2025

In March, the average temperature in Rio Grande City, United States is a pleasant 22°C (72°F). However, temperatures can vary significantly, with a minimum of 4°C (39°F) and a maximum soaring to 38°C (101°F). This month also brings about 29 mm (1.1 in) of rainfall over 5 days, contributing to an average humidity level of 76%. Prepare for a mix of warmth and occasional showers!

March Temperature in Rio Grande City

In March in Rio Grande City, the average temperature is 22°C (72°F). Maximum temperatures can reach as high as 38°C (101°F), while the minimum can drop to as low as 4°C (39°F). Be prepared for a wide range of temperatures if you're planning to travel during this month.

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

The chart illustrates March temperature patterns in Rio Grande City, 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 City, March typically has an average temperature of 22°C (72°F), with highs reaching up to 38°C (101°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec616572788386878884776863
Data source: Temperature data for Rio Grande City 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.

March Precipitation in Rio Grande City

In Rio Grande City in March, the total precipitation amount is 29 mm (1.1 in) recorded over a span of 5 days.

March Precipitation Trends in Rio Grande City

The chart displays monthly precipitation patterns in Rio Grande City, 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 City, March typically receives around 29 mm (1.1 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec181829327879731697383721
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Rio Grande City

In Rio Grande City in March humidity is 76%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as you navigate through the thick, saturated air.

March Average Humidity in Rio Grande City

This chart illustrates the average monthly humidity levels in Rio Grande City, 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 City is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%79%76%77%80%73%66%65%73%76%80%86%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Rio Grande City

In Rio Grande City in March, 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 Rio Grande City.

Maximum UV Index Levels in Rio Grande City for March

The chart shows the monthly maximum UV Index (UVI) for Rio Grande City 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 City typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6910111212121211976
Data source: Rio Grande City 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 City Compares to Other Months

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

This table compares monthly weather conditions in Rio Grande City, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather16°C (61°F)18 mm (0.7 inches)83%high
February Weather18°C (65°F)18 mm (0.7 inches)79%very high
March Weather22°C (72°F)29 mm (1.1 inches)76%very high
April Weather25°C (78°F)32 mm (1.3 inches)77%extreme
May Weather28°C (83°F)77 mm (3.0 inches)80%extreme
June Weather30°C (86°F)79 mm (3.1 inches)73%extreme
July Weather30°C (87°F)73 mm (2.9 inches)66%extreme
August Weather31°C (89°F)16 mm (0.6 inches)65%extreme
September Weather29°C (84°F)97 mm (3.8 inches)73%extreme
October Weather25°C (77°F)37 mm (1.5 inches)76%very high
November Weather20°C (69°F)37 mm (1.5 inches)80%high
December Weather17°C (64°F)20 mm (0.8 inches)86%high

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