ClimateForecastDecemberJanuary >>

Santiago Climate by Month

The temperature in Santiago can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and pleasant during the cooler months. It is also known for its large amounts of rainfall. Now, let’s explore all the climate details to give you a full picture.

Average day and night temperature

Visitors to Santiago can expect significant temperature changes throughout the year. Typically, daytime temperatures range from a very warm 31°C in August to a pleasant 19°C in the coolest month, January. Nights are cooler, with temperatures generally dropping to 7°C, particularly during the colder months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

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

In contrast, December offers drier and sunnier days, with around 44 mm of rainfall over 3 rainy days.

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

Sunshine over the year

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.

Monthly hours of sunshine

Data from: Monterrey, Mexico (32 KM, 20 Miles).

Daily hours of sunshine

Data from: Monterrey, Mexico (32 KM, 20 Miles).

The best time of year to visit Santiago in Mexico

During the months of February, March, October and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Santiago?
    Most rainfall (rainy season) is seen in April and September.
  • Which is the warmest month in Santiago?
    August has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Santiago?
    The coldest month is January with an average maximum temperature of 19°C.
  • Which is the wettest month in Santiago?
    September tops the wettest month list with 194 mm of rainfall.
  • Which is the driest month in Santiago?
    December is the driest month with 44 mm of precipitation.
  • Which is the sunniest month in Santiago?
    July is the sunniest month with an average of 251 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Santiago

    Fri   Dec 13
    22°C | 9°C
    NE 4 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Sat   Dec 14
    26°C | 18°C
    NE 7 km/h
    almost clear and no rain

    almost clear and no rain

    Sun   Dec 15
    27°C | 17°C
    E 7 km/h
    almost clear and no rain

    almost clear and no rain