San Isidro Weather & Climate: Best Time to Visit

The climate in San Isidro is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 29°C (84°F) in January to a moderate 15°C (59°F) in the coolest month, July.

Nights vary from 20°C (68°F) in January to around 8°C (46°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

San Isidro has a notably wet climate with abundant precipitation, recording 1106 mm (44 in) of rainfall per year. San Isidro offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month October (123 mm (4.8 in)) and the driest month August (74 mm (2.9 in)) is not too significant. For more details, please visit our San Isidro Precipitation page.

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

The average number of days each month with precipitation

For those who appreciate different seasons, San Isidro serves as an ideal destination. Expect longer, more sun-filled days in January with an average of 9.5 hours of sunshine daily, and embrace the darker days in June, offering only 4.4 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in San Isidro.

The city experiences its highest humidity in June, reaching 79%. In December, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year