San Marcos Sierras Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from very warm to moderate in San Marcos Sierras. Average maximum daytime temperatures range from a very warm 31°C (88°F) in January, the warmest time of the year, to a moderate 18°C (64°F) during cooler months like July.

At night, you can expect temperatures ranging from 18°C (64°F) in January to around 5°C (41°F) during July.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, San Marcos Sierras has a moderate amount of precipitation, averaging 783 mm (31 in) of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, January it receives high rainfall, averaging 115 mm (4.5 in) of precipitation, recorded across 11 rainy days. In contrast, the driest month July brings less rainfall, with 14 mm (0.6 in) over 3 rainy days. For more details, please visit our San Marcos Sierras Precipitation page.

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

The average number of days each month with precipitation

While the amount of sunshine in San Marcos Sierras varies throughout the year, all seasons offer their own charm. Enjoy up to 8.5 hours of daily sun in January, and experience slightly darker atmosphere in June, with about 5.2 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in San Marcos Sierras.

The city experiences its highest humidity in March, reaching 73%. In September, the humidity drops to its lowest level at 55%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year