The 10 most alternative cities in South America
Discover South America's top 10 alternative cities! From Valparaíso's vibrant streets to La Paz's high-altitude charm and Medellín's innovative spirit.
Santiago Weather in October
October in Santiago averages 21°C (70°F) during the day and 7°C (45°F) at night. The excellent conditions and moderate rainfall make it a solid month to visit.
Rainfall in Santiago in October
Analyzing past climate data, one can expect approximately 3 days of rain, averaging 56 mm (2.2 in). Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in Santiago in October
Santiago in October is worth a visit. The temperature is excellent, with 21°C (70°F) during the day and 7°C (45°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights fall to 7°C (45°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Santiago in October
Enjoy a sunny month with about 205 hours of sunshine, the clear skies make Santiago even more beautiful.If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April, October, November and December typically offer the best circumstances for Santiago.
Santiago Temperature in October
Min Temperature
7°C (45°F)
Max Temperature
21°C (70°F)
Chance of Rain
10%
Precipitation
56 mm (2.2 in)
Rainy days
3 days
Humidity
78%
Sunshine
205 hours
Percentage Sunshine
Santiago Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Santiago - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Santiago typically rise from around 20°C (68°F) at the start of October to approximately 24°C (75°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 10°C (50°F).
Average temperatures in October
Historical weather records for Santiago in October
Browse day-by-day weather records for Santiago spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Santiago historical weather extremes in October
Based on 49 years of weather observations in Santiago between 1976 and 2025, these are the recorded extremes.
- The warmest day in October was on October 28, 2024, with a maximum of 34°C (93°F).
- Santiago experienced its chilliest October day on October 14, 1991, reaching only 8°C (46°F).
- The lowest overnight temperature recorded in October was -3°C (27°F) (October 16, 1991).
Best Places in Chile in October
Find out more about the weather in Chile and which places have the best travel conditions in this month. See all of Chile in October →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Santiago in October
For Santiago in October, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Santiago in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Barbeque9/10 -
Camping4/10 -
Outdoor sports10/10
Santiago 3-Day Forecast
More climate data for Santiago
Temperature Rainfall Sunshine Humidity
See the full Santiago climate overview or explore weather in Chile.
Popular in October
Where to go in October - average daytime high across popular destinations.
San Pedro de Atacama
23°C (73°F) Hanga Roa
21°C (70°F) Santiago21°C (70°F) La Serena
21°C (70°F) Viña del Mar17°C (63°F) Valparaíso16°C (61°F) Pucón
15°C (59°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 most alternative cities in South America
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