2026 Climate Averages

Weather in Santiago in September

Conditions are pleasant for sightseeing, though you might encounter occasional showers.

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Climate Overview

September is a good time to visit Santiago. Santiago has a Moderate climate with average yearly highs of 20°C, lows of 9°C, and approximately 1 rainy days per month.

Avg High

20°C

Avg Low

9°C

Rainy days

1days

Daylight

11.8h

Is September a good time to visit Santiago?

Conditions are pleasant for sightseeing, though you might encounter occasional showers.

Daylight

Sunrise

7:44 AM

Sunset

7:34 PM

Weather by Month
Monthly weather data
Month High Low Rainy days Condition
January 31°C 17°C 0 Good
February 31°C 16°C 0 Good
March 29°C 15°C 0 Excellent (best)
April 25°C 13°C 2 Excellent (best)
May 21°C 11°C 3 Good
June 14°C 7°C 9 Good
July 15°C 7°C 7 Good
August 16°C 7°C 4 Good
September 20°C 9°C 1 Good
October 24°C 11°C 1 Excellent (best)
November 27°C 12°C 0 Excellent (best)
December 29°C 14°C 0 Good

Weather data: Open-Meteo Archive (2020-2025) • Open-Meteo.com (CC BY 4.0) • Historical avg. 2020–2025

What to Pack for September

Layers, a light jacket, comfortable walking shoes, and an umbrella.

Climate: Moderate
Travel Context Perfect weather for walking tours and all-day sightseeing.

Planning a trip to Santiago?

Common Questions

Is September a good time to visit Santiago? +

September is typically Good for visiting Santiago, with average highs of 20°C and around 1 rainy days.

What should I pack for Santiago in September? +

With highs of 20°C and lows of 9°C in {month}, we recommend: Layers, a light jacket, comfortable walking shoes, and an umbrella.

Does it rain a lot in Santiago in September? +

Santiago typically sees around 1 rainy days in September.

How many hours of daylight are there in Santiago in September? +

In September, Santiago gets approximately 11.8 hours of daylight per day.

Is September peak season in Santiago? +

No, September is not peak season in Santiago. Expect better value on accommodation and fewer tourists.

What is the best month to visit Santiago? +

The best months to visit Santiago are October, November, March, April, when the weather is optimal for sightseeing.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: America/Santiago)

Last Updated: January 2026

More Santiago Guides

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Complete travel guide for Santiago: top things to do, itineraries, and typical costs.

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September

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