Rio Grande Weather & Climate: Best Time to Visit

The climate in Rio Grande experiences moderate temperature changes, with mild shifts between seasons. Average daytime temperatures reach a comfortable 26°C (79°F) in February. In July, the coolest month of the year, temperatures drop to a moderate 16°C (61°F).

At night, temperatures range from around 22°C (72°F) in February to 12°C (54°F) in July.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rio Grande is known for its substantial rainfall, with annual precipitation reaching 1339 mm (53 in). Despite minor fluctuations, Rio Grande enjoys fairly consistent precipitation throughout the year. In October, you can expect around 136 mm (5.4 in) of precipitation, while in December, Rio Grande receives about 93 mm (3.7 in). For more details, please visit our Rio Grande Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Rio Grande can be enjoyed more throughout the sunniest month of December under a blue sky, with approximately 8.7 hours of sunshine daily. In contrast, the city experiences much darker days in June, with only 4.6 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The city experiences its highest humidity in June, reaching 86%. In December, the humidity drops to its lowest level at 76%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year