Vilcún in Summer
In summer (December, January and February), Vilcún sees average daytime highs around 22°C and overnight lows near 10°C, with 189 mm of rain over about 20 wet days across the season. It is the warmest season of the year and the driest season of the year.
Over the season highs climb from about 19°C in early December to 22°C by late February. The sky is clear or mostly clear about 52% of the time across summer, and the air most often feels dry.
Summer is Vilcún's best season of the year to visit on our travel score. For the whole year in context, see Vilcún's year-round climate.
- Avg daytime high
- 22°C
- warmest season of the year
- Avg overnight low
- 10°C
- Rainfall
- 189 mm
- 20 wet days
- Avg wind
- 9 km/h
- Travel score
- 7.5
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Vilcún in Summer
Over the season highs climb from about 19°C in early December to 22°C by late February.
A typical summer day in Vilcún reaches about 22°C and drops to 10°C overnight. The warmest of the three months is February, the coolest December.
How summer really feels in Vilcún
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Vilcún weather by month
How the three summer months (December, January and February) 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 | 22° / 10° | 49 | 5.7 | 0 | 14.4 | 7.8 |
| Feb | 23° / 10° | 51 | 5.1 | 0 | 13.5 | 8.0 |
| Mar | 20° / 9° | 76 | 7.3 | 0 | 12.3 | 7.0 |
| Apr | 16° / 7° | 140 | 10.7 | 0 | 11 | 5.1 |
| May | 13° / 6° | 238 | 14.6 | 0.2 | 9.9 | 3.3 |
| Jun | 11° / 4° | 342 | 18.7 | 0.6 | 9.4 | 2.0 |
| Jul | 10° / 3° | 280 | 17.7 | 1.4 | 9.6 | 1.9 |
| Aug | 12° / 3° | 249 | 16.6 | 0.6 | 10.5 | 2.5 |
| Sep | 14° / 4° | 153 | 13.4 | 0.4 | 11.7 | 3.5 |
| Oct | 15° / 6° | 143 | 12.7 | 0 | 13 | 4.5 |
| Nov | 18° / 7° | 102 | 10.3 | 0 | 14.1 | 5.6 |
| Dec | 20° / 9° | 89 | 8.7 | 0 | 14.7 | 6.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 52% of the time across summer.
Chance of precipitation in Summer
Vilcún gets around 189 mm of rain over 20 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 9 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 14 h 30 min in early December to 13 hours by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.3 kWh/m².
Hazard calendar for Vilcún
None of Vilcún's seasonal hazards peak in summer. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do.
Vilcún's rainy season runs May–August, when most of the year's rain falls.
Is summer a good time to visit Vilcún?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is one of the better times to visit Vilcún for general sightseeing.
What to pack for Vilcún in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Vilcún sees daytime highs around 22°C and nights near 10°C. Pack sun protection. Worth having: light clothes and rain gear. About 20 days see rain.
UV index in Vilcún in Summer
Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Vilcún peaks around December 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 11 | 11 | 8 | 4 | 2 | 2 | 2 | 3 | 5 | 8 | 10 | 12 |
| Level | Extreme | Extreme | Very high | Moderate | Moderate | Low | Moderate | Moderate | Moderate | Very high | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 11 | Extreme |
| Mar | 8 | Very high |
| Apr | 4 | Moderate |
| May | 2 | Moderate |
| Jun | 2 | Low |
| Jul | 2 | Moderate |
| Aug | 3 | Moderate |
| Sep | 5 | Moderate |
| Oct | 8 | Very high |
| Nov | 10 | Very high |
| Dec | 12 | Extreme |
Air quality in Vilcún in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Vilcún is worst in March — around 28 µg/m³ PM2.5 (moderate), about 3.7× the cleanest month (January, 8 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) | 8 | 9 | 28 | 19 | 11 | 8 | 9 | 10 | 11 | 10 | 9 | 8 |
| Level | Good | Good | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 9 | Good |
| Mar | 28 | Moderate |
| Apr | 19 | Moderate |
| May | 11 | Good |
| Jun | 8 | Good |
| Jul | 9 | Good |
| Aug | 10 | Good |
| Sep | 11 | Good |
| Oct | 10 | Good |
| Nov | 9 | Good |
| Dec | 8 | Good |
Where is Vilcún?
Vilcún sits at 38.7°S, 72.2°W, 295 m above sea level, in Chile. The nearest listed city is Lautaro, 24 km away.
Topography around Vilcún
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Vilcún.
Within 3 km, the terrain around Vilcún has only modest variations in elevation — a maximum elevation change of 106 m around an average of 305 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 525 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,090 m.
The land around Vilcún is covered by cropland (40%), grassland (32%) and trees (24%) within 3 km, trees (37%), cropland (36%) and grassland (26%) within 16 km, and trees (59%) 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 Vilcún (-38.6688°, -72.2257°, elevation 295 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.