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Santiago Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Santiago.
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Climate overview of Santiago
Santiago, Nuevo León, Mexico, sees big temperature differences between seasons, with August peaking at 31°C (88°F) and January dropping to 19°C (66°F).
The city receives considerable rainfall, with around 1200 mm (47 in) annually. September is the wettest month. It has very warm summers and pleasant winters. July is the sunniest month, averaging 8.4 hours of sunshine per day.
Santiago Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Santiago - and find the best time to visit.
Monthly Temperature in Santiago
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
Rainfall in Santiago
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
Sunshine Hours in Santiago
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
Data from: Monterrey, Mexico (32 KM, 20 Miles).
Daily hours of sunshine
Data from: Monterrey, Mexico (32 KM, 20 Miles).
Humidity in Santiago by Month
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
Data from: Monterrey, Mexico (32 KM, 20 Miles).
Best Time to Visit Santiago
For comfortable weather, consider visiting Santiago in February, November and December. Conditions are usually least favourable in June, July, August and September.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
very good
Feb
excellent
Mar
very good
Apr
very good
May
very good
Jun
good
Jul
good
Aug
good
Sep
good
Oct
very good
Nov
excellent
Dec
excellent
- Best overall: February, November and December
- Warmest weather: June, July and August
- Most sunshine: July and August
- Wettest months: September and October, when rainfall is highest.
- Seasonal pattern: Very warm summers and pleasant winters
Frequently asked questions about the climate in Santiago
What is the best time to visit Santiago?
February, November and December typically offer the most optimal weather in Santiago. In contrast, June, July, August and September tend to have less optimal conditions. Santiago has very warm summers and pleasant winters.
What temperatures can I expect in Santiago?
Daytime highs range from 19°C (66°F) in January to 31°C (88°F) in August. Nighttime lows range from 7°C (45°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Santiago get?
Annual rainfall is around 1200 mm (47 in). September is the wettest month with 194 mm (7.6 in), while December is the driest with 44 mm (1.7 in).
How sunny is Santiago?
Santiago receives around 2,256 hours of sunshine per year. July is the sunniest month with 251 hours, while December is the cloudiest with just 135 hours. Overall, Santiago enjoys abundant sunshine.
Santiago 3-Day Forecast
Santiago on the map
Santiago is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
Los Cabos32°C (90°F) Puerto Peñasco30°C (86°F) Tulum
30°C (86°F) Puerto Vallarta29°C (84°F) Cancún30°C (86°F) Playa del Carmen30°C (86°F) Mexico City
22°C (72°F) Bucket list
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