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Hourly Forecast
Daylight Hours
05:45
Sunrise
17:50
Sunset
Moon
Waxing Crescent
09:58
Moonrise
21:18
Moonset
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Weather in Santiago tomorrow, September 17, 2026
Santiago looks damp on September 17, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Wetter spells lean into the morning, when rain odds reach about 32% near 09:00. Skies look heaviest around 00:00, with cover close to 91%.
Expect highs of 30°C and cooler readings close to 23°C. Expect humidity between 74% and 99%, most humid near 05:00. Winds stay light, near 2.0 km/h by 17:00, so the day feels still more than breezy.
Afternoon showers stay in play, peaking near 100% around 15:00. Skies remain cluttered, with cover about 84% by 18:00. Visibility stays generally good near 15.0 km on average, though it can drop toward 4.8 km in thicker cloud or showers. Sunrise is at 05:45 and sunset at 17:49, giving 12 hours 3 minutes of sunlight today.
The practical takeaway for Santiago on September 17, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 30°C.
Frequently asked questions about weather in Santiago
How warm does it get in Santiago?
The warmest month in Santiago is June, with average high temperatures of 35°C. The average temperature during this period is around 29°C.
How cold does it get in Santiago?
The coldest month in Santiago is February, with average low temperatures of 21°C. The average temperature during this period is around 24°C.
What is the wettest time of year in Santiago?
The wettest month in Santiago is July, with an average of 244mm of precipitation.
What is the driest time of year in Santiago?
The driest month in Santiago is April, with an average of 54mm of precipitation.
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