Coihueco weather in December

In December, Coihueco sees average daytime highs of 22°C and overnight lows near 9°C, with 45 mm of rain across 4.5 wet days and about 14.5 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 23°C by the end. The sky is clear or mostly clear about 72% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of December to 14 h 30 min by month's end. Set against the rest of the year, December is Coihueco's 4th-clearest and 8th-windiest month. For the whole year in context, see Coihueco's year-round climate.

Daytime high
22°
3rd warmest
Overnight low
10th coldest
Rainfall
45 mm
4.5 wet days
Daylight
14 h 30 min
6:29 AM – 8:58 PM
Cloud cover
28%
4th clearest
Wind
9 km/h
8th windiest
Solar energy
8.52 kWh/m²
Travel score
8.2
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 23°C by the end.

A typical December day in Coihueco reaches about 22°C in the afternoon and slips back to 9°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 26°C. Set against its neighbours, December runs about 3°C warmer than November and about 2°C cooler than January.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1218
2218
3218
4218
5218
6218
7219
8219
9219
10229
11229
12229
13229
14229
15229
16229
17229
18229
19229
20229
21239
22239
23239
24239
252310
262310
272310
282310
292310
302310
312310

How December really feels in Coihueco

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.

Coihueco weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan24° / 11°202.3014.29.0
Feb24° / 10°382.9013.48.9
Mar22° / 343.6012.38.3
Apr18° / 1156.7011.16.4
May14° / 26510.80.110.14.1
Jun11° / 36614.70.79.52.5
Jul11° / 28912.81.39.82.5
Aug12° / 24713110.63.1
Sep14° / 1419.50.311.84.3
Oct16° / 1028.80.212.95.6
Nov19° / 525.20147.2
Dec22° / 454.5014.58.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27822
37822
47822
57921
67921
77921
88020
98020
108020
118119
128020
138020
148020
158020
168020
178119
188218
198218
208218
218218
228218
238218
248317
258317
268317
278317
288515
298515
308515
318614

Chance of precipitation in December

Any precipitation

Coihueco gets around 45 mm of rain over 4.5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 14% and peaks near 17% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
116
216
317
417
517
617
717
817
917
1017
1116
1216
1315
1415
1515
1614
1714
1814
1913
2013
2112
2212
2311
2411
2511
2610
2710
289
299
309
319

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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1973
2973
3964
4964
5964
6955
7955
8955
9946
10946
11946
12946
13946
14946
15937
16937
17937
18937
19937
20937
21928
22928
23928
24919
25919
269010
279010
288911
298911
308911
318812

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 18 min at the start of December to 14 h 30 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 6:27 AM to 6:36 AM, and sunset from 8:47 PM to 9:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.36:278:47
214.36:278:48
314.46:278:48
414.46:278:49
514.46:278:50
614.46:278:51
714.46:278:52
814.46:278:53
914.46:278:53
1014.46:278:54
1114.56:288:55
1214.56:288:56
1314.56:288:56
1414.56:288:57
1514.56:288:58
1614.56:298:58
1714.56:298:59
1814.56:298:59
1914.56:309:00
2014.56:309:01
2114.56:319:01
2214.56:319:02
2314.56:329:02
2414.56:329:02
2514.56:339:03
2614.56:339:03
2714.56:349:04
2814.56:349:04
2914.56:359:04
3014.56:369:04
3114.56:369:05

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 8.52 kWh/m².

For context, solar energy here swings from a low near 1.85 kWh/m² to a high of 8.58 kWh/m² in January across the year — December's 8.52 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
18.3Intense
28.3Intense
38.3Intense
48.3Intense
58.3Intense
68.3Intense
78.4Intense
88.4Intense
98.4Intense
108.4Intense
118.4Intense
128.5Intense
138.5Intense
148.5Intense
158.5Intense
168.5Intense
178.6Intense
188.6Intense
198.6Intense
208.6Intense
218.6Intense
228.7Intense
238.7Intense
248.7Intense
258.7Intense
268.7Intense
278.7Intense
288.7Intense
298.8Intense
308.8Intense
318.8Intense
Planning a trip in December

Hazard calendar for Coihueco

In seasonPeak

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

Coihueco's rainy season runs May–August, 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 Coihueco?

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

8.2
Sightseeing
4th-best month of the year
5.7
Beach & pool
3rd-best month of the year

December is one of the better times to visit Coihueco for general sightseeing.

What to pack for Coihueco in December

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

In December, Coihueco sees daytime highs around 22°C and nights near 9°C. Pack sun protection. Worth having: light clothes. About 5 days see rain.

sun protectionlight clothes

UV index in Coihueco 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 Coihueco peaks around January 14 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateVery highExtremeJan 14UV 12Jun 16UV 2
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar9Very high
Apr5Moderate
May3Moderate
Jun2Moderate
Jul3Moderate
Aug3Moderate
Sep5High
Oct8Very high
Nov10Extreme
Dec12Extreme

Air quality in Coihueco 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 Coihueco 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).

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateGoodApr 1539 µg/m³Dec 129 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb25Moderate
Mar30Moderate
Apr40Poor
May27Moderate
Jun15Moderate
Jul15Moderate
Aug14Moderate
Sep13Moderate
Oct12Moderate
Nov10Good
Dec9Good
Location & terrain

Where is Coihueco?

Coihueco sits at 36.6°S, 71.8°W, 257 m above sea level, in Chile. The nearest listed city is Chillán, 24 km away.

Topography around Coihueco

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

Within 3 km, the terrain around Coihueco has only modest variations in elevation — a maximum elevation change of 99 m around an average of 257 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 831 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,159 m.

The land around Coihueco is covered by cropland (44%), trees (26%) and grassland (22%) within 3 km, trees (44%) and cropland (36%) within 16 km, and trees (43%) and grassland (32%) within 80 km.

3 km
99 m
16 km
831 m
80 km
3,159 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Chillán 24 km · San Carlos 25 km · Chillán Viejo 27 km · Parral 54 km · Quillón 59 km · Cabrero 68 km · Longaví 75 km · Coelemu 79 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 Coihueco (-36.6279°, -71.8307°, elevation 257 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).