Santiago, Chile Weather
Santiago hourly forecast: next 24 hours
Today's high of 58°F (15°C) is about 4°F (2°C) below the typical August high of 62°F (16°C).
Current conditions in detail
Santiago weather tomorrow (Friday, August 7)
Tomorrow in Santiago looks smoky haze, with a high of 56° and an overnight low of 42°. Precipitation chance is modest at 17%. Winds top out near 8 mph, and the UV index reaches 4 (moderate).
Santiago 14-day forecast
About the weather in Santiago
Weather in Santiago is shaped by its semi-arid climate - expect big day-to-night temperature swings and modest rainfall. January afternoons typically reach 85°F (30°C), while July highs hover near 59°F (15°C). Annual precipitation averages 15.0 inches (382 mm) over about 41 rainy days.
Santiago weather: quick facts
- Hottest month: January - highs near 85°F (30°C)
- Coldest month: July - highs near 59°F (15°C)
- Record high: 99°F (37°C) · Record low: 15°F (-9°C) (2015–2024)
- Wettest month: June (6 rainy days) · Sunniest: December (13.5 h sun/day)
- Climate type: semi-arid - big day-to-night temperature swings and modest rainfall
Temperatures through the year
The warmest stretch of the year centers on January. Highs average 85°F (30°C) and overnight lows stay near 60°F (16°C). The coolest month is July, with typical highs of 59°F (15°C) and lows around 43°F (6°C). Based on 2015–2024 weather data, temperatures have reached as high as 99°F (37°C) and dropped as low as 15°F (-9°C).
Rain, sun and snow
June is usually the wettest month. It brings about 3.1 inches (79 mm) of rain over 6 days, while March is the driest. December brings the most sunshine, averaging 13.5 hours of sun a day. Snowfall is rare but not unheard of.
Season by season
Spring (September through November)
Spring in Santiago brings comfortable warmth, with daytime highs averaging 71°F (22°C) and nights around 50°F (10°C); rain falls on about 13 days over the three months.
Summer (December through February)
Summer in Santiago brings hot afternoons, with daytime highs averaging 84°F (29°C) and nights around 59°F (15°C); precipitation is infrequent.
Fall (March through May)
Fall in Santiago brings comfortable warmth, with daytime highs averaging 74°F (23°C) and nights around 53°F (12°C); precipitation is infrequent.
Winter (June through August)
Winter in Santiago is crisp but comfortable, with daytime highs averaging 60°F (16°C) and nights around 44°F (6°C); rain falls on about 18 days over the three months.
Average temperatures in Santiago by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 85° | 60° | 0 | 0.3 in | 13.4 h/day | 51% |
| February | 85° | 61° | 1 | 0.2 in | 12.7 h/day | 53% |
| March | 82° | 58° | 1 | 0.1 in | 11.6 h/day | 53% |
| April | 74° | 53° | 2 | 1.3 in | 9.7 h/day | 60% |
| May | 66° | 48° | 4 | 1.4 in | 8.0 h/day | 62% |
| June | 60° | 44° | 6 | 3.1 in | 6.8 h/day | 62% |
| July | 59° | 43° | 5 | 2.2 in | 7.6 h/day | 63% |
| August | 62° | 44° | 6 | 2.6 in | 8.4 h/day | 68% |
| September | 65° | 46° | 6 | 1.6 in | 9.2 h/day | 69% |
| October | 71° | 49° | 5 | 1.4 in | 11.0 h/day | 64% |
| November | 78° | 53° | 2 | 0.5 in | 12.3 h/day | 55% |
| December | 83° | 57° | 1 | 0.3 in | 13.5 h/day | 51% |