Santiago Atitlán Weather & Climate: Best Time to Visit

With minimal seasonal shifts, Santiago Atitlán experiences a constant climate year-round. Average daytime temperatures reach a comfortable 27°C (81°F) in March. In October, the coolest month of the year, temperatures drop to a comfortable 25°C (77°F).

At night, temperatures range from around 17°C (63°F) in March to 15°C (59°F) in October.

Check out our detailed temperature page for more information.

Temperature ranges by month

Santiago Atitlán has a notably wet climate with abundant precipitation, recording 2674 mm (105 in) of rainfall per year. Santiago Atitlán can be quite wet during September, receiving approximately 457 mm (18 in) of precipitation over 25 rainy days.

In contrast, during the driest month (January), you will experience much drier conditions, with 20 mm (0.8 in) of precipitation spread across 6 rainy days. For more details, please visit our Santiago Atitlán Precipitation page.

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

The average number of days each month with precipitation

Santiago Atitlán experiences moderate variation in sunshine hours across the seasons. With 8.3 hours daily sunshine in March, it dips to 5.1 hours in June, offering a balanced mix of sunny and overcast days.

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 Santiago Atitlán.

The city experiences its highest humidity in May, reaching 81%. In February, the humidity drops to its lowest level at 69%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year