Cunco weather in December

In December, Cunco sees average daytime highs of 18°C and overnight lows near 9°C, with 130 mm of precipitation across 10 wet days and about 14.7 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 19°C by the end. The sky is clear or mostly clear about 37% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 30 min at the start of December to 14 h 42 min by month's end. Set against the rest of the year, December is Cunco's 4th-clearest and 7th-windiest month. For the whole year in context, see Cunco's year-round climate.

Daytime high
18°
4th warmest
Overnight low
9th coldest
Precipitation
130 mm
10 wet days
Daylight
14 h 42 min
6:23 AM – 9:06 PM
Cloud cover
52%
4th clearest
Wind
8 km/h
7th windiest
Solar energy
7.32 kWh/m²
Travel score
6.2
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 18°C in the first days to 19°C by the end.

A typical December day in Cunco reaches about 18°C in the afternoon and slips back to 9°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 24°C. Set against its neighbours, December runs about 2°C warmer than November and about 2°C cooler than January.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1178
2178
3188
4188
5188
6188
7188
8188
9188
10188
11188
12188
13188
14189
15189
16189
17199
18199
19199
20199
21199
22199
23199
24199
25199
26199
27199
28199
29209
30209
312010

How December really feels in Cunco

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Cunco weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan21° / 10°756.8014.47.2
Feb21° / 10°726.1013.57.4
Mar19° / 1038.6012.36.5
Apr15° / 19212.10.4114.4
May12° / 30915.61.29.92.8
Jun / 44819.65.49.31.4
Jul / 36318.47.69.61.3
Aug10° / 32817.76.910.51.8
Sep12° / 20614.43.711.72.8
Oct14° / 190142133.8
Nov16° / 145120.514.14.8
Dec18° / 130100.114.76.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24852
34852
45050
54951
65050
75050
85050
95149
105149
115149
125149
135248
145347
155347
165446
175545
185545
195545
205644
215743
225743
235743
245842
255842
265941
275941
286040
296040
306040
316139

Chance of precipitation in December

Any precipitation

Cunco gets around 130 mm of rain and snow over 10 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 32% and peaks near 35% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
334
434
534
634
733
833
932
1032
1131
1231
1331
1431
1531
1631
1731
1831
1931
2031
2131
2231
2331
2431
2531
2631
2730
2830
2930
3030
3130

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19730
29730
39640
49640
59550
69550
79550
89361
99361
109361
119271
129271
139271
149271
159271
169271
179271
189181
199181
209181
219091
229091
2389101
2488111
2587121
2687121
2786131
2885141
2985141
3084151
3184151

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 30 min at the start of December to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over December. Sunrise moves from 6:22 AM to 6:30 AM, and sunset from 8:54 PM to 9:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.56:228:54
214.56:228:55
314.66:228:56
414.66:228:57
514.66:218:57
614.66:218:58
714.66:218:59
814.66:219:00
914.76:229:01
1014.76:229:02
1114.76:229:02
1214.76:229:03
1314.76:229:04
1414.76:229:04
1514.76:239:05
1614.76:239:06
1714.76:239:06
1814.76:239:07
1914.76:249:08
2014.76:249:08
2114.76:259:09
2214.76:259:09
2314.76:269:10
2414.76:269:10
2514.76:279:10
2614.76:279:11
2714.76:289:11
2814.76:289:11
2914.76:299:12
3014.76:309:12
3114.76:309:12

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.32 kWh/m².

For context, solar energy here swings from a low near 1.38 kWh/m² to a high of 7.63 kWh/m² in January across the year — December's 7.32 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.1Intense
47.1Intense
57.1Intense
67.1Intense
77.2Intense
87.2Intense
97.2Intense
107.2Intense
117.3Intense
127.3Intense
137.3Intense
147.3Intense
157.3Intense
167.3Intense
177.4Intense
187.4Intense
197.4Intense
207.4Intense
217.4Intense
227.4Intense
237.5Intense
247.5Intense
257.5Intense
267.5Intense
277.5Intense
287.5Intense
297.5Intense
307.6Intense
317.6Intense
Planning a trip in December

Hazard calendar for Cunco

In seasonPeak

None of Cunco's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Cunco's rainy season runs May–September, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Cunco?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.2
Sightseeing
4th-best month of the year
2.3
Beach & pool
4th-best month of the year

December is a reasonable time to visit Cunco for sightseeing.

What to pack for Cunco in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Cunco sees daytime highs around 18°C and nights near 9°C. Pack sun protection. Worth having: rain gear. About 10 days see rain.

sun protectionrain gear

UV index in Cunco in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cunco peaks around December 19 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 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateModerateVery highExtremeDec 19UV 12Jun 17UV 2
UV index (midday)Level
Jan11Extreme
Feb11Extreme
Mar8Very high
Apr4Moderate
May2Moderate
Jun2Low
Jul2Moderate
Aug3Moderate
Sep5Moderate
Oct8Very high
Nov10Very high
Dec12Extreme

Air quality in Cunco in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Cunco 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).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 1927 µg/m³Jan 128 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar28Moderate
Apr19Moderate
May11Good
Jun8Good
Jul9Good
Aug10Good
Sep11Good
Oct10Good
Nov9Good
Dec8Good
Location & terrain

Where is Cunco?

Cunco sits at 38.9°S, 72.0°W, 369 m above sea level, in Chile. The nearest listed city is Vilcún, 34 km away.

Topography around Cunco

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Cunco.

Within 3 km, the terrain around Cunco has significant variations in elevation — a maximum elevation change of 429 m around an average of 387 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,315 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,078 m.

The land around Cunco is covered by grassland (50%) and trees (38%) within 3 km, trees (67%) and grassland (26%) within 16 km, and trees (59%) and grassland (21%) within 80 km.

3 km
429 m
16 km
1,315 m
80 km
3,078 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Vilcún 34 km · Pucon 40 km · Villarrica 43 km · Freire 52 km · Padre Las Casas 53 km · Pitrufquén 53 km · Temuco 54 km · Lautaro 57 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
Catholic 57%none 26%Evangelical or Protestant 16%other Christians and traditions related to Christ 1%

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 Cunco (-38.9318°, -72.0315°, elevation 369 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).