Climate Overview
The climate in Santiago Airport is warm and mild. The average annual temperature is 19°C and approximately 1700mm of precipitation falls per year. Santiago Airport receives a notable amount of rainfall throughout the year, including during its driest month. Santiago Airport is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: January, February, December. The coldest months are July, June, August, when temperatures can drop to 10°C.
Temperature
Santiago Airport sees moderate temperature variation throughout the year, ranging from 10°C to 30°C. The warmest month is January, when average highs reach 30°C and the mean temperature sits around 25°C. July is the coolest month, with minimum temperatures around 10°C and an average of 14°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.
Precipitation
Santiago Airport is a fairly wet location, receiving approximately 1700mm of precipitation annually, which averages out to around 142mm per month. The wettest month is October, averaging 199mm of rainfall. May and January also tend to see above-average precipitation. The driest month is July, with just 101mm. That's 98mm less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Santiago Airport is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.
Seasons
87 days until Winter
It is currently autumn in Santiago Airport, which began on March 20, 2026. Santiago Airport is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in January at around 30°C, while the coldest stretch bottoms out in July near 10°C. Winter is next, beginning on June 21, 2026 — 87 days from now.
Spring
Temperatures range from 13 to 27°C. Rainfall is heavy, totalling around 502mm across the season with a monthly average of 167mm. Winds are moderate at around 18km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 18 to 30°C. Rainfall is heavy, totalling around 405mm across the season with a monthly average of 135mm. Winds are moderate at around 16km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 12 to 28°C. Rainfall is heavy, totalling around 470mm across the season with a monthly average of 157mm. Winds are moderate at around 15km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 10 to 21°C. Rainfall is heavy, totalling around 323mm across the season with a monthly average of 108mm. Winds are moderate at around 17km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Santiago Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
