Santiago Weather & Climate: Best Time to Visit

Visitors to Santiago can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a very warm 31°C (88°F) in August to a pleasant 19°C (66°F) in the coolest month, January.

Nights vary from 19°C (66°F) in August to around 7°C (45°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Santiago is known for its substantial rainfall, with annual precipitation reaching 1200 mm (47 in). The climate in Santiago shows significant variation throughout the year. Expect heavy rainfall in September, the wettest month, with an average of 194 mm (7.6 in) of precipitation over 8 rainy days.

In contrast, the driest month December offers drier and sunnier days, with around 44 mm (1.7 in) of rainfall over 3 rainy days. For more details, please visit our Santiago 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, Santiago serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 8.4 hours of sunshine daily, and embrace the darker days in December, offering only 4.5 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 Santiago.

The city experiences its highest humidity in October, reaching 72%. In March, the humidity drops to its lowest level at 59%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year