Colón weather in December

In December, Colón sees average daytime highs of 30°C and overnight lows near 18°C, with 119 mm of rain across 8 wet days and about 14.1 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 29°C in the first days to 31°C by the end. The sky is clear or mostly clear about 49% of the time in December, and the air most often feels humid.

Daylight stretches from about 14 hours at the start of December to 14 h 06 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
30°
2nd warmest
Overnight low
18°
10th coldest
Rainfall
119 mm
8 wet days
Daylight
14 h 06 min
5:46 AM – 7:52 PM
Cloud cover
45%
2nd clearest
Wind
12 km/h
6th windiest
Solar energy
7.24 kWh/m²
Travel score
5.6
out of 10

Colón is city in the province of Entre Ríos, Argentina.

Founded
1863

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 29°C in the first days to 31°C by the end.

A typical December day in Colón reaches about 30°C in the afternoon and slips back to 18°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 34°C. Set against its neighbours, December runs about 3°C warmer than November and about 1°C cooler than January.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
12817
22917
32917
42917
52917
62917
72917
82917
92917
102917
112917
122917
132918
142918
152918
163018
173018
183018
193018
203018
213018
223019
233019
243019
253019
263019
273019
283119
293119
303119
313119

Colón weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 20°1068.213.95.0
Feb30° / 19°116813.25.5
Mar28° / 17°1248.212.26.7
Apr24° / 14°1418.211.27.3
May20° / 11°877.110.46.8
Jun17° / 796.89.96.1
Jul17° / 716.410.15.9
Aug19° / 886.810.86.7
Sep21° / 10°937.411.87.0
Oct24° / 13°126912.87.1
Nov27° / 16°1077.513.77.0
Dec30° / 18°119814.15.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
36139
46139
56238
66238
76337
86337
96436
106436
116436
126436
136436
146436
156436
166337
176337
186238
196238
206139
216139
226040
236040
246040
255941
265941
275941
285941
296040
306139
316238

Chance of precipitation in December

Any precipitation

Colón gets around 119 mm of rain over 8 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 26% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
325
425
525
625
725
825
925
1025
1125
1225
1326
1426
1527
1627
1728
1828
1928
2028
2128
2228
2328
2427
2527
2627
2727
2827
2927
3027
3127

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 27% of days. Sticky, muggy-or-worse air turns up on roughly 30% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12730261420
22730261420
32730271520
42629271520
52629271530
62628271630
72528281630
82528281630
92427281730
102427281740
112327281840
122227281940
132226281940
142126292050
152025292150
162024282260
171924282260
181823282370
191822282480
201722272590
2117212725100
2216202626110
2315202626121
2415192527131
2515192527141
2614182427151
2714182428161
2813182428161
2913182328171
3013172328171
3112172328181

Wind in December

Winds average 12 km/h in December.

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

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 hours at the start of December to 14 h 06 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 5:44 AM to 5:53 AM, and sunset from 7:41 PM to 7:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:447:41
214.05:447:42
314.05:437:43
414.05:437:43
514.05:447:44
614.05:447:45
714.05:447:46
814.05:447:46
914.15:447:47
1014.15:447:48
1114.15:447:49
1214.15:457:49
1314.15:457:50
1414.15:457:51
1514.15:457:51
1614.15:467:52
1714.15:467:52
1814.15:467:53
1914.15:477:53
2014.15:477:54
2114.15:487:55
2214.15:487:55
2314.15:497:55
2414.15:497:56
2514.15:507:56
2614.15:507:57
2714.15:517:57
2814.15:517:57
2914.15:527:58
3014.15:537:58
3114.15:537:58

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.24 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 7.24 kWh/m² in December across the year — December's 7.24 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.2Intense
27.2Intense
37.2Intense
47.2Intense
57.2Intense
67.3Intense
77.3Intense
87.3Intense
97.3Intense
107.3Intense
117.3Intense
127.3Intense
137.3Intense
147.3Intense
157.3Intense
167.2Intense
177.2Intense
187.2Intense
197.2Intense
207.2Intense
217.2Intense
227.2Intense
237.2Intense
247.2Intense
257.2Intense
267.2Intense
277.2Intense
287.2Intense
297.2Intense
307.2Intense
317.2Intense
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).

5.6
Sightseeing
10th-best month of the year
7.4
Beach & pool
1st-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 30°C and nights near 18°C. Pack light clothes and sun protection. Worth having: rain gear. About 8 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 — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 13Jun 20UV 3
UV index (midday)Level
Jan14Extreme
Feb11Extreme
Mar10Very high
Apr7High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug5Moderate
Sep7High
Oct9Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Colón?

Colón sits at 32.2°S, 58.1°W, 25 m above sea level, in Argentina. The nearest listed city is Paysandú, 12 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 41 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 70 m; within 80 km, only modest variations in elevation — a maximum elevation change of 152 m.

The land around Colón is covered by trees (31%), grassland (24%) and water (24%) within 3 km, grassland (45%) and trees (29%) within 16 km, and grassland (39%), cropland (36%) and trees (21%) within 80 km.

3 km
41 m
16 km
70 m
80 km
152 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Paysandú 12 km · Concepción del Uruguay 30 km · Young 72 km · Villaguay 92 km · Concordia 93 km · Gualeguaychú 94 km · Salto 94 km · Fray Bentos 101 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 (-32.2231°, -58.1443°, elevation 25 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).