San Martín Weather & Climate: Best Time to Visit

The climate in San Martín is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a very warm 34°C (93°F) in January, the warmest time of the year, to a moderate 16°C (61°F) during cooler months like July.

At night, you can expect temperatures ranging from 20°C (68°F) in January to around 3°C (37°F) during July.

Check out our detailed temperature page for more information.

Temperature ranges by month

San Martín maintains relatively dry conditions year-round, recording average annual precipitation of 413 mm (16 in). Significant seasonal changes in precipitation occur throughout the year. In the wettest month, January it receives moderate rainfall, averaging 70 mm (2.8 in) of precipitation, recorded across 6 rainy days. In contrast, the driest month July brings less rainfall, with 8.9 mm (0.4 in) over 2 rainy days. For more details, please visit our San Martín Precipitation page.

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

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in San Martín. While January receives considerable daily sunshine with up to 10.4 hours, June marks the darkest time of the year, where sunshine is scarce with only 5.7 hours of sunlight per day.

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 moderate throughout the year in San Martín.

The city experiences its highest humidity in April, reaching 67%. In November, the humidity drops to its lowest level at 45%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year