Santiago in Fall
In fall (March, April and May), Santiago sees average daytime highs around 14°C and overnight lows near 5°C, with 270 mm of rain over about 54 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Across fall, daytime highs hold fairly steady around 14°C. The sky is clear or mostly clear about 12% of the time across fall, and the air most often feels dry.
Fall is Santiago's 3rd-best season to visit on our travel score. For the whole year in context, see Santiago's year-round climate.
- Avg daytime high
- 14°C
- 3rd-warmest season
- Avg overnight low
- 5°C
- Rainfall
- 270 mm
- 54 wet days
- Avg wind
- 3 km/h
- Travel score
- 3.4
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Santiago in Fall
Across fall, daytime highs hold fairly steady around 14°C.
A typical fall day in Santiago reaches about 14°C and drops to 5°C overnight. The warmest of the three months is April, the coolest May.
Santiago weather by month
How the three fall months (March, April and May) 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 Fall
The sky is clear or mostly clear about 12% of the time across fall.
Chance of precipitation in Fall
Santiago gets around 270 mm of rain over 54 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 3 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 18 min in early March to 11 h 18 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 5.0 kWh/m².
Hazard calendar for Santiago
In fall, 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 fall a good time to visit Santiago?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Santiago.
What to pack for Santiago in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Santiago sees daytime highs around 14°C and nights near 5°C. Pack rain gear. Worth having: a warm layer and sun protection. About 54 days see rain.
UV index in Santiago in Fall
Clear-sky midday UV across fall averages around 15 (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 Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall 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.