San Carlos in Winter
In winter (June, July and August), San Carlos sees average daytime highs around 13°C and overnight lows near 5°C, with 638 mm of rain over about 36 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across winter, daytime highs hold fairly steady around 13°C. The sky is clear or mostly clear about 31% of the time across winter, and the air most often feels dry.
Winter is San Carlos's weakest season of the year to visit on our travel score. For the whole year in context, see San Carlos's year-round climate.
- Avg daytime high
- 13°C
- coldest season of the year
- Avg overnight low
- 5°C
- Rainfall
- 638 mm
- 36 wet days
- Avg wind
- 11 km/h
- Travel score
- 3.6
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in San Carlos in Winter
Across winter, daytime highs hold fairly steady around 13°C.
A typical winter day in San Carlos reaches about 13°C and drops to 5°C overnight. The warmest of the three months is August, the coolest July.
San Carlos weather by month
How the three winter months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 13° | 10 | 1.3 | 14.2 | 8.6 |
| Feb | 27° / 12° | 24 | 1.8 | 13.4 | 8.6 |
| Mar | 24° / 11° | 23 | 2.3 | 12.3 | 8.7 |
| Apr | 20° / 8° | 74 | 5.3 | 11.1 | 7.2 |
| May | 16° / 7° | 193 | 9.8 | 10.1 | 4.8 |
| Jun | 13° / 5° | 267 | 13.3 | 9.6 | 3.3 |
| Jul | 13° / 4° | 204 | 11.5 | 9.8 | 3.4 |
| Aug | 14° / 5° | 168 | 11.4 | 10.6 | 4.2 |
| Sep | 17° / 6° | 96 | 7.2 | 11.8 | 5.7 |
| Oct | 19° / 8° | 64 | 6.5 | 12.9 | 6.9 |
| Nov | 22° / 9° | 29 | 3.5 | 13.9 | 8.2 |
| Dec | 25° / 11° | 22 | 2.4 | 14.4 | 8.7 |
Cloud cover in Winter
The sky is clear or mostly clear about 31% of the time across winter.
Chance of precipitation in Winter
San Carlos gets around 638 mm of rain over 36 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 11 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 h 42 min in early June to 11 h 06 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 2.4 kWh/m².
Hazard calendar for San Carlos
In winter, San Carlos overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
San Carlos's rainy season runs May–August, when most of the year's rain falls.
Is winter a good time to visit San Carlos?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in San Carlos.
What to pack for San Carlos in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, San Carlos sees daytime highs around 13°C and nights near 5°C. Worth packing: a warm layer and rain gear. About 36 days see rain.
UV index in San Carlos in Winter
Clear-sky midday UV across winter averages around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Carlos peaks around January 15 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 11 | 9 | 5 | 3 | 2 | 3 | 3 | 5 | 8 | 11 | 12 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 11 | Extreme |
| Mar | 9 | Very high |
| Apr | 5 | High |
| May | 3 | Moderate |
| Jun | 2 | Moderate |
| Jul | 3 | Moderate |
| Aug | 3 | Moderate |
| Sep | 5 | High |
| Oct | 8 | Very high |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Air quality in San Carlos in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in San Carlos is worst in April — around 40 µg/m³ PM2.5 (poor), about 4.6× the cleanest month (December, 9 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) | 14 | 25 | 30 | 40 | 27 | 15 | 15 | 14 | 13 | 12 | 10 | 9 |
| Level | Moderate | Moderate | Moderate | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 25 | Moderate |
| Mar | 30 | Moderate |
| Apr | 40 | Poor |
| May | 27 | Moderate |
| Jun | 15 | Moderate |
| Jul | 15 | Moderate |
| Aug | 14 | Moderate |
| Sep | 13 | Moderate |
| Oct | 12 | Moderate |
| Nov | 10 | Good |
| Dec | 9 | Good |
Where is San Carlos?
San Carlos sits at 36.4°S, 72.0°W, 186 m above sea level, in Chile. The nearest listed city is Chillán, 24 km away.
Topography around San Carlos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Carlos.
Within 3 km, the terrain around San Carlos has only modest variations in elevation — a maximum elevation change of 37 m around an average of 175 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 164 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,164 m.
The land around San Carlos is covered by grassland (35%) and cropland (30%) within 3 km, cropland (42%) and grassland (36%) within 16 km, and trees (46%), grassland (30%) and cropland (20%) within 80 km.
Chile travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F / L
- 220 V · 50 Hz
- Prices
- ≈ 48% of US
- price level, 2025
- GDP per capita
- $17,995
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 6.3
- per 100k, 2023
- Road deaths
- 14.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 517
- 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 San Carlos (-36.4248°, -71.958°, elevation 186 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.