Santiago in Spring
In spring (September, October and November), Santiago sees average daytime highs around 15°C and overnight lows near 5°C, with 237 mm of rain over about 56 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across spring, daytime highs hold fairly steady around 15°C. The sky is clear or mostly clear about 9% of the time across spring, and the air most often feels dry.
Spring is Santiago's 2nd-best season to visit on our travel score. For the whole year in context, see Santiago's year-round climate.
- Avg daytime high
- 15°C
- warmest season of the year
- Avg overnight low
- 5°C
- Rainfall
- 237 mm
- 56 wet days
- Avg wind
- 4 km/h
- Travel score
- 3.6
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Santiago in Spring
Across spring, daytime highs hold fairly steady around 15°C.
A typical spring day in Santiago reaches about 15°C and drops to 5°C overnight. The warmest of the three months is October, the coolest September.
Santiago weather by month
How the three spring months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 14° / 6° | 229 | 28.8 | 0.7 | 12.7 | 2.3 |
| Feb | 14° / 6° | 214 | 26.1 | 0.3 | 12.5 | 2.2 |
| Mar | 14° / 5° | 170 | 27.4 | 0.3 | 12.1 | 2.4 |
| Apr | 14° / 5° | 76 | 18.6 | 0 | 11.7 | 3.2 |
| May | 14° / 3° | 24 | 8.1 | 0 | 11.4 | 4.5 |
| Jun | 14° / 2° | 12 | 3.3 | 0.1 | 11.2 | 4.9 |
| Jul | 14° / 2° | 11 | 3.1 | 0.1 | 11.3 | 5.0 |
| Aug | 15° / 2° | 22 | 6.5 | 0.5 | 11.6 | 4.9 |
| Sep | 15° / 4° | 37 | 13.1 | 0 | 11.9 | 4.3 |
| Oct | 16° / 5° | 84 | 20.3 | 0.1 | 12.3 | 3.5 |
| Nov | 16° / 6° | 116 | 22.8 | 0.3 | 12.6 | 3.1 |
| Dec | 15° / 6° | 197 | 27.5 | 0.5 | 12.8 | 2.5 |
Cloud cover in Spring
The sky is clear or mostly clear about 9% of the time across spring.
Chance of precipitation in Spring
Santiago gets around 237 mm of rain over 56 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 4 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 42 min in early September to 12 h 42 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.0 kWh/m².
Hazard calendar for Santiago
In spring, Santiago overlaps its monsoon season. The full year is below, with each hazard's peak months called out.
Santiago's monsoon runs November–March, when most of the year's rain falls.
Is spring a good time to visit Santiago?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Santiago.
What to pack for Santiago in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Santiago sees daytime highs around 15°C and nights near 5°C. Pack rain gear and sun protection. Worth having: a warm layer. About 56 days see rain.
UV index in Santiago in Spring
Clear-sky midday UV across spring averages around 16 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Santiago peaks around February 10 at about 19 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (extreme).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 19 | 19 | 17 | 15 | 12 | 10 | 10 | 13 | 14 | 16 | 17 | 16 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 19 | Extreme |
| Feb | 19 | Extreme |
| Mar | 17 | Extreme |
| Apr | 15 | Extreme |
| May | 12 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 13 | Extreme |
| Sep | 14 | Extreme |
| Oct | 16 | Extreme |
| Nov | 17 | Extreme |
| Dec | 16 | Extreme |
Air quality in Santiago in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Santiago is worst in September — around 16 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (January, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 13 | 16 | 10 | 8 | 6 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 7 | Good |
| Mar | 8 | Good |
| Apr | 8 | Good |
| May | 8 | Good |
| Jun | 8 | Good |
| Jul | 8 | Good |
| Aug | 13 | Moderate |
| Sep | 16 | Moderate |
| Oct | 10 | Good |
| Nov | 8 | Good |
| Dec | 6 | Good |
Where is Santiago?
Santiago sits at 13.5°S, 72.0°W, 3,420 m above sea level, in Peru. The nearest listed city is Cusco, 2.0 km away.
Topography around Santiago
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santiago.
Within 3 km, the terrain around Santiago has large variations in elevation — a maximum elevation change of 647 m around an average of 3,548 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,570 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,458 m.
The land around Santiago is covered by artificial surfaces (51%) and grassland (30%) within 3 km, grassland (73%) within 16 km, and grassland (77%) within 80 km.
Peru travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 220 V · 60 Hz
- Prices
- ≈ 51% of US
- price level, 2025
- GDP per capita
- $9,684
- 2025
- Happiness
- 6.0 / 10
- World Happiness, 2025
- Safe drinking water
- 49%
- of population, 2024
- Homicide rate
- 8.6
- per 100k, 2021
- Road deaths
- 13.6
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 519
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Santiago (-13.5273°, -71.9843°, elevation 3,420 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.