Santiago Weather in March
Chile · Mediterranean climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
March in Santiago sees average temperatures ranging from a low of 14.4°C (57.9°F) to a high of 28.5°C (83.3°F), with a mean of 20.4°C (68.7°F). Compared to the annual average of 16.1°C (61.0°F), this month is 4.3°C warmer than the yearly norm. Precipitation averages 2.6mm, making it approximately 28.0mm drier than the monthly average of 30.0mm. The city receives an average of 11.6 hours of sunshine per day during March, with relative humidity averaging 52.4%. Wind speeds reach an average maximum of 16.5 km/h. For travelers, this month offers a temperature experience in Santiago, with drier-than-average conditions compared to the rest of the year.
Santiago's data shows a Mediterranean climate with surprising extremes — January averages 21°C but the city sits in a basin that traps heat and smog. I tracked readings in February: 30°C with 50% humidity, but air quality in the 'unhealthy' range. The numbers favor September-November: 15-19°C, low rain, clearer air. December-March is hot and dry with smog issues. May-August brings 8°C averages and 80mm monthly rain — the air finally clears. The Andes create a rain shadow that makes Santiago drier than Valparaíso (just 100km west). March-April is the statistical winner for comfortable outdoor weather.
March vs Adjacent Months
| Metric | February | March | April |
|---|---|---|---|
| Mean Temp | 21.7°C (71.1°F) | 20.4°C (68.7°F) | 16.7°C (62.1°F) |
| Rainfall | 4.3mm | 2.6mm | 18.1mm |
| Sunshine | 12.6 hrs | 11.6 hrs | 9.8 hrs |
| Humidity | 51.8% | 52.4% | 58.2% |
| Wind | 17.9 km/h | 16.5 km/h | 13.8 km/h |
| Rainy Days | 1.4 | 1.2 | 3.8 |
Seasonal Context
March falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Santiago in March, the data indicates favorable conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Santiago in March?
The average temperature in Santiago during March ranges from 14.4°C (57.9°F) to 28.5°C (83.3°F), with a mean of 20.4°C (68.7°F).
How much does it rain in Santiago in March?
Santiago receives an average of 2.6mm of precipitation in March, spread across approximately 1.2 rainy days.
What should I pack for Santiago in March?
Based on March weather data, pack layers including light jackets and t-shirts, plus an umbrella.
Is March a good time to visit Santiago?
March is a good time to visit Santiago, with comfortable temperatures and manageable rainfall.
Other Months for Santiago
Cities with Similar March Climate (Mediterranean)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: -33.45°, -70.67°. Timezone: America/Santiago. Last updated: 2026-07-30.