Santiago weather in September
Mild and comfortable, with occasional showers. Average highs of 18°C and lows of 8°C, with around 7 rainy days expected throughout the month.
While September isn't our top-rated month for Santiago, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
18°C
Average low
8°C
Rainy days
7 days
Best months to visit
January, February, March, April, November, December
What to do in Santiago in September
Whatever the weather, Santiago rewards curious visitors. Here are some of the best ways to spend your time:
Cerro San Cristóbal hill hike and city overview
Pre-Columbian Art Museum: textiles, ceramics, gold
Bellavista neighborhood: street art, cafés, bohemia walk
Maipo Valley wine tour: Concha y Toro estate visit
Lastarria cultural district gallery and restaurant crawl
Day trip to Cajón del Maipo: canyon hiking and waterfalls
What to pack for September
Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.
Browse other months
Recommended
January
29C
Warm and pleasant, and mostly sunny skies.
Recommended
February
29C
Warm and pleasant, and mostly sunny skies.
Recommended
March
28C
Warm and pleasant, and mostly sunny skies.
Recommended
April
23C
Mild and comfortable, and mostly sunny skies.
May
19C
Mild and comfortable, and mostly sunny skies.
June
15C
Cool, with occasional showers.
July
15C
Cool, with occasional showers.
August
17C
Cool, with occasional showers.
September (you are here)
18C
Mild and comfortable, with occasional showers.
October
21C
Mild and comfortable, with occasional showers.
Recommended
November
25C
Warm and pleasant, and mostly sunny skies.
Recommended
December
28C
Warm and pleasant, and mostly sunny skies.
Book your September trip to Santiago
Find hotels, tours and experiences for the perfect escape.
