Health effects can be felt by sensitive groups, including children, older adults, and people with respiratory or heart conditions. The general public is less likely to be affected.

Health & Activity Advice

⚠ Take Precautions

UV index is 5 today — moderate. Sunscreen is worth using for extended time outside, but no special precautions are needed for short trips.

Health effects can be felt by sensitive groups, including children, older adults, and people with respiratory or heart conditions. The general public is less likely to be affected.

Conditions are comfortable for outdoor activity at most points during the day today.

Nearby Regional Outlook

Santiago Weather Radar

Live precipitation · Cloud cover · Wind

View live radar →

Frequently Asked Questions

What is the hottest month in Santiago?

The hottest month in Santiago is typically January, with daytime highs averaging around 29.7°C (85°F), based on 10 years of historical weather data. Overnight lows during this period average near 15.6°C (60°F).

What is the coldest month in Santiago?

The coldest month in Santiago is typically July, with overnight lows averaging around 6.3°C (43°F) and daytime highs near 15.1°C (59°F), based on 10 years of historical weather data.

Does Santiago have a rainy season?

Santiago doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. June is the wettest month on average (about 87 mm), while March is the driest (about 4 mm).

What's the best time of year to visit Santiago?

The best time to visit Santiago is typically October to December, when daytime highs average a comfortable 25.7°C (78°F). Rainfall during this window averages around 15 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.

Is Santiago's air quality safe right now?

As of the latest reading, Santiago's air quality index (AQI) is 58, rated "Moderate", based on the nearest monitoring station. Air quality is acceptable, though unusually sensitive individuals may notice minor effects.

Atmospheric Details

Wind

2 km/h

ENE · Light Breeze · Max 13 km/h

Humidity

75 %

High · feels muggy

UV Index

High

Visibility

14 km

Excellent

Pressure

953 hPa

Low · change likely

Dew Point

7°C

Comfortable

Today vs Normal

18°C-1° below normal

The long-term average high for today is 19°C.

5 of the last 19 days with published data ran above normal.

It continues that pattern - today's forecast is also running below normal.

Red = above normal, blue = at or below · last 12 days

Air Quality

Unhealthy for Sensitive Groups

Health effects can be felt by sensitive groups, including children, older adults, and people with respiratory or heart conditions. The general public is less likely to be affected.

Health & Activity Advice

⚠ Take Precautions

UV index is 5 today — moderate. Sunscreen is worth using for extended time outside, but no special precautions are needed for short trips.

Health effects can be felt by sensitive groups, including children, older adults, and people with respiratory or heart conditions. The general public is less likely to be affected.

Conditions are comfortable for outdoor activity at most points during the day today.