Colón weather in December

In December, Colón sees average daytime highs of 28°C and overnight lows near 17°C, with 110 mm of rain across 9.4 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 29°C by the end. The sky is clear or mostly clear about 51% of the time in December, and the air most often feels humid.

Daylight stretches from about 14 h 06 min at the start of December to 14 h 12 min by month's end. Set against the rest of the year, December is Colón's 2nd-clearest and 6th-windiest month. For the whole year in context, see Colón's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
17°
10th coldest
Rainfall
110 mm
9.4 wet days
Daylight
14 h 12 min
5:53 AM – 8:08 PM
Cloud cover
43%
2nd clearest
Wind
13 km/h
6th windiest
Solar energy
7.38 kWh/m²
Travel score
6.2
out of 10

Colón is human settlement in Buenos Aires, Argentina.

Founded
1892

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 27°C in the first days to 29°C by the end.

A typical December day in Colón reaches about 28°C in the afternoon and slips back to 17°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 33°C. Set against its neighbours, December runs about 2°C warmer than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12715
22715
32715
42715
52815
62816
72816
82816
92816
102816
112816
122816
132816
142816
152816
162816
172917
182917
192917
202917
212917
222917
232917
242917
252917
262917
272918
282918
292918
302918
312918

Colón weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°1089145.8
Feb28° / 17°1068.713.36.6
Mar26° / 15°998.212.37.2
Apr23° / 12°958.711.27.2
May19° / 656.510.36.6
Jun16° / 394.99.85.5
Jul15° / 324.4105.3
Aug18° / 484.710.76.6
Sep20° / 656.211.87.0
Oct23° / 12°1229.912.97.0
Nov26° / 14°1038.713.87.1
Dec28° / 17°1109.414.26.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26535
36535
46535
56634
66634
76634
86733
96733
106733
116634
126634
136634
146634
156634
166634
176634
186634
196634
206634
216634
226634
236535
246634
256634
266535
276535
286535
296436
306436
316436

Chance of precipitation in December

Any precipitation

Colón gets around 110 mm of rain over 9.4 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 31% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
429
529
629
729
829
929
1029
1130
1230
1330
1431
1531
1631
1732
1832
1932
2032
2132
2232
2332
2432
2532
2632
2732
2832
2932
3031
3131

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 28% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
141302450
240302451
340302451
439302561
538302561
637302661
736302761
835302771
934302871
1033302871
1132302981
1231302981
1330303091
14293030101
15283031101
16272931111
17262931132
18242831142
19232831162
20222831172
21212730193
22202729203
23192629224
24182628234
25172528245
26172528255
27162427266
28152427276
29152327286
30142327287
31142327297

Wind in December

Winds average 13 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 06 min at the start of December to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 5:51 AM to 6:01 AM, and sunset from 7:57 PM to 8:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:517:57
214.15:517:58
314.15:517:59
414.15:517:59
514.15:518:00
614.25:518:01
714.25:518:02
814.25:518:02
914.25:528:03
1014.25:528:04
1114.25:528:05
1214.25:528:05
1314.25:528:06
1414.25:538:07
1514.25:538:07
1614.25:538:08
1714.25:548:08
1814.35:548:09
1914.35:548:10
2014.35:558:10
2114.35:558:11
2214.35:568:11
2314.35:568:12
2414.35:578:12
2514.35:578:12
2614.35:588:13
2714.25:588:13
2814.25:598:14
2914.25:598:14
3014.26:008:14
3114.26:018:14

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.38 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 7.38 kWh/m² in December across the year — December's 7.38 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.3Intense
47.3Intense
57.3Intense
67.4Intense
77.4Intense
87.4Intense
97.4Intense
107.4Intense
117.4Intense
127.4Intense
137.4Intense
147.4Intense
157.4Intense
167.4Intense
177.4Intense
187.4Intense
197.4Intense
207.4Intense
217.3Intense
227.3Intense
237.3Intense
247.3Intense
257.3Intense
267.3Intense
277.3Intense
287.3Intense
297.3Intense
307.3Intense
317.3Intense
Planning a trip in December

Is December a good time to visit Colón?

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

6.2
Sightseeing
9th-best month of the year
7.2
Beach & pool
2nd-best month of the year

December is a reasonable time to visit Colón for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Colón in December

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

In December, Colón sees daytime highs around 28°C and nights near 17°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in Colón 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 Colón peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 13Jun 20UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct9Very high
Nov11Extreme
Dec12Extreme

Air quality in Colón 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 Colón is worst in August — around 16 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (April, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1916 µg/m³Apr 177 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb7Good
Mar7Good
Apr6Good
May7Good
Jun9Good
Jul11Good
Aug16Moderate
Sep14Moderate
Oct9Good
Nov7Good
Dec8Good
Location & terrain

Where is Colón?

Colón sits at 33.9°S, 61.1°W, 81 m above sea level, in Argentina. The nearest listed city is Rojas, 47 km away.

Topography around Colón

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

Within 3 km, the terrain around Colón has only modest variations in elevation — a maximum elevation change of 22 m around an average of 82 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 55 m; within 80 km, only modest variations in elevation — a maximum elevation change of 101 m.

The land around Colón is covered by cropland (51%), grassland (22%) and artificial surfaces (20%) within 3 km, cropland (89%) within 16 km, and cropland (89%) within 80 km.

3 km
22 m
16 km
55 m
80 km
101 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Rojas 47 km · Pergamino 48 km · Firmat 60 km · Junín 79 km · Venado Tuerto 82 km · Salto 89 km · Arrecifes 94 km · Casilda 95 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus 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 Colón (-33.8971°, -61.0994°, elevation 81 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).