Chivilcoy weather in December

In December, Chivilcoy sees average daytime highs of 28°C and overnight lows near 16°C, with 98 mm of rain across 8.7 wet days and about 14.3 hours of daylight. It is the 2nd-warmest and 6th-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 53% of the time in December, and the air most often feels dry.

Daylight stretches from about 14 h 12 min at the start of December to 14 h 18 min by month's end. Set against the rest of the year, December is Chivilcoy's 2nd-clearest and 5th-windiest month. For the whole year in context, see Chivilcoy's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
16°
10th coldest
Rainfall
98 mm
8.7 wet days
Daylight
14 h 18 min
5:46 AM – 8:06 PM
Cloud cover
42%
2nd clearest
Wind
13 km/h
5th windiest
Solar energy
7.45 kWh/m²
Travel score
6.4
out of 10

Chivilcoy is city in Argentina.

Founded
1854

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 Chivilcoy reaches about 28°C in the afternoon and slips back to 16°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 3°C warmer than November and about 1°C cooler than January.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12715
22715
32715
42715
52715
62715
72715
82815
92815
102815
112815
122815
132816
142816
152816
162816
172816
182816
192916
202916
212916
222917
232917
242917
252917
262917
272917
282917
292917
302917
312917

Chivilcoy weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°1038.514.15.8
Feb28° / 17°1007.913.36.7
Mar26° / 15°92812.37.2
Apr22° / 12°1028.411.17.1
May18° / 636.110.26.4
Jun15° / 545.69.75.1
Jul14° / 445.29.94.8
Aug17° / 505.210.76.2
Sep19° / 666.511.86.7
Oct22° / 11°1119.812.96.8
Nov25° / 13°1028.813.87.2
Dec28° / 16°988.714.36.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26337
36337
46436
56436
66535
76535
86535
96634
106634
116634
126634
136634
146634
156634
166634
176634
186733
196634
206634
216733
226733
236733
246733
256634
266634
276634
286733
296733
306634
316634

Chance of precipitation in December

Any precipitation

Chivilcoy gets around 98 mm of rain over 8.7 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 28% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
427
527
628
728
828
928
1028
1129
1229
1329
1430
1530
1630
1730
1830
1930
2029
2129
2229
2329
2428
2528
2628
2728
2828
2927
3027
3127

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
149272040
248262150
348262150
447262150
546272150
645272260
744272260
843282360
942282360
1041292360
1140292470
1238302470
1337312471
1436312581
1534312591
1633322591
17313226101
18303126111
19293126131
20273127141
21263027152
22252927162
23242927182
24232828192
25232728203
26222628213
27212529223
28212429234
29202329234
30202329244
31192329254

Wind in December

Winds average 13 km/h in December.

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

05101520151015202531
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
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 14 h 12 min at the start of December to 14 h 18 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 5:45 AM to 5:54 AM, and sunset from 7:55 PM to 8:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.25:457:55
214.25:457:56
314.25:447:57
414.25:447:58
514.25:447:58
614.25:447:59
714.35:448:00
814.35:458:01
914.35:458:01
1014.35:458:02
1114.35:458:03
1214.35:458:04
1314.35:458:04
1414.35:468:05
1514.35:468:06
1614.35:468:06
1714.35:478:07
1814.35:478:07
1914.35:478:08
2014.35:488:08
2114.35:488:09
2214.35:498:09
2314.35:498:10
2414.35:508:10
2514.35:508:11
2614.35:518:11
2714.35:518:12
2814.35:528:12
2914.35:528:12
3014.35:538:12
3114.35:548:13

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.45 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 7.45 kWh/m² in December across the year — December's 7.45 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.4Intense
47.4Intense
57.4Intense
67.4Intense
77.4Intense
87.4Intense
97.4Intense
107.5Intense
117.5Intense
127.5Intense
137.5Intense
147.5Intense
157.5Intense
167.5Intense
177.5Intense
187.5Intense
197.5Intense
207.4Intense
217.4Intense
227.4Intense
237.4Intense
247.4Intense
257.4Intense
267.4Intense
277.4Intense
287.4Intense
297.4Intense
307.4Intense
317.3Intense
Planning a trip in December

Is December a good time to visit Chivilcoy?

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

6.4
Sightseeing
7th-best month of the year
7.3
Beach & pool
2nd-best month of the year

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

What to pack for Chivilcoy in December

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

In December, Chivilcoy sees daytime highs around 28°C and nights near 16°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in Chivilcoy 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 Chivilcoy peaks around January 14 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 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 14UV 13Jun 20UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar9Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Chivilcoy?

Chivilcoy sits at 34.9°S, 60.0°W, 40 m above sea level, in Argentina. The nearest listed city is Bragado, 49 km away.

Topography around Chivilcoy

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

Within 3 km, the terrain around Chivilcoy has only modest variations in elevation — a maximum elevation change of 22 m around an average of 53 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 32 m; within 80 km, only modest variations in elevation — a maximum elevation change of 85 m.

The land around Chivilcoy is covered by artificial surfaces (40%), grassland (22%) and cropland (21%) within 3 km, cropland (82%) within 16 km, and cropland (78%) and grassland (20%) within 80 km.

3 km
22 m
16 km
32 m
80 km
85 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Bragado 49 km · Chacabuco 50 km · Mercedes 60 km · Carmen de Areco 61 km · Veinticinco de Mayo 61 km · Navarro 69 km · Salto 71 km · Saladillo 85 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 Chivilcoy (-34.8969°, -60.0191°, elevation 40 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).