- Clothing
- Warm jacket and comfortable layers recommended.
Tomorrow's Weather Forecast - Santiago
Tomorrow's weather in Santiago. high 18°C (64°F), low 7°C (45°F). Drizzle.
Tomorrow’s Outlook
Tomorrow will be 2°C warmer than today. Light rain is possible, though a 20% peak chance means much of the day could stay dry. That risk lines up with humidity averaging 71% through the day the more moisture in the air, the more readily clouds build into showers. Humidity holds around 71%, giving the air a damp, heavy feel even without much heat behind it. Winds stay light and calm, rarely topping 8 km/h. Sunrise is at 7:45 AM and sunset at 7:32 PM, for about 11h 47m of daylight.
- Tomorrow
- 18°/ 7°
- Today16° / 8°
Tomorrow’s Hourly Weather Outlook
Morning6 AM – Noon9°
- Rain probability
- 4%
- Wind speed
- 4 km/h
AfternoonNoon – 6 PM16°
- Rain probability
- 6%
- Wind speed
- 7 km/h
Evening6 PM – Midn14°
- Rain probability
- 0%
- Wind speed
- 8 km/h
NightMidn – 6 AM9°
- Rain probability
- 20%
- Wind speed
- 2 km/h
24-Hour Rain & Temperature Forecast
Tomorrow12 Sep
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Planning Advice for Tomorrow
- Outdoor
- Good conditions for outdoor activities.
- Travel
- Standard travel conditions expected.
Sunrise & Sunset
Sunrise
Dawn 7:15 AMTotal Daylight
Full day forecastSolar noon 1:38 PM
Sunset
Dusk 8:02 PMvs today+2 min daylight
Sunrise shift1 min earlier
Sunset shift1 min later
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Santiago is forecast to reach a high of 18°C tomorrow, with an overnight low around 7°C. That's 1° below the long-term average high of 19°C for this time of year. It continues a recent pattern — 5 of the last 19 days with published data have run cooler than normal. Expect a low chance of rain (20% probability) and light winds averaging 8 km/h. Air quality is currently Unhealthy for Sensitive Groups (AQI 148), driven mainly by PM2.5 at 56 μg/m³.
Today vs Normal
16°C-3° 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
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.