San Carlos de Bolívar weather in December

In December, San Carlos de Bolívar sees average daytime highs of 28°C and overnight lows near 15°C, with 90 mm of rain across 8.6 wet days and about 14.4 hours of daylight. It is the 2nd-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 29°C by the end. The sky is clear or mostly clear about 55% 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 24 min by month's end. Set against the rest of the year, December is San Carlos de Bolívar's 2nd-clearest and 4th-windiest month. For the whole year in context, see San Carlos de Bolívar's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
15°
10th coldest
Rainfall
90 mm
8.6 wet days
Daylight
14 h 30 min
5:47 AM – 8:14 PM
Cloud cover
40%
2nd clearest
Wind
14 km/h
4th windiest
Solar energy
7.6 kWh/m²
Travel score
6.7
out of 10

San Carlos de Bolívar is town in Buenos Aires, Argentina.

Founded
1878

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 26°C in the first days to 29°C by the end.

A typical December day in San Carlos de Bolívar reaches about 28°C in the afternoon and slips back to 15°C overnight — a 13°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)
12614
22614
32614
42614
52714
62714
72714
82714
92714
102714
112714
122715
132715
142815
152815
162815
172815
182815
192815
202816
212816
222816
232816
242916
252916
262916
272916
282916
292916
302916
312916

How December really feels in San Carlos de Bolívar

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.

San Carlos de Bolívar weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 16°1079.414.26.1
Feb27° / 16°947.913.46.9
Mar25° / 14°998.112.37.4
Apr21° / 11°917.811.17.0
May17° / 495.510.16.1
Jun14° / 364.69.64.6
Jul13° / 344.79.84.3
Aug16° / 494.710.65.7
Sep18° / 666.811.86.4
Oct21° / 10°1039.712.96.7
Nov24° / 12°998.813.97.2
Dec28° / 15°908.614.46.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% 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 31%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36733
46733
56733
66733
76733
86733
96832
106832
116832
126832
136832
146931
156931
166931
176931
186931
197129
207129
217129
227129
237129
247129
257129
267129
277129
287129
297030
307030
317030

Chance of precipitation in December

Any precipitation

San Carlos de Bolívar gets around 90 mm of rain over 8.6 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 29% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
429
529
628
728
828
928
1028
1128
1228
1328
1428
1528
1628
1728
1828
1928
2027
2127
2227
2327
2427
2527
2626
2726
2826
2926
3026
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 44% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
156291410
255291420
355291420
455281520
555281520
654281620
753281720
853271730
952271830
1052271830
1152271830
1250281940
1349281940
1448281950
1546282050
1645282060
1744282161
1843282171
1941282281
2040282291
21392822101
22372823111
23362823121
24352823132
25332823142
26322824142
27322824152
28312725162
29302725162
30292626162
31292626172

Wind in December

Winds average 14 km/h in December.

Across December, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light 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 18 min at the start of December to 14 h 24 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 5:46 AM to 5:55 AM, and sunset from 8:03 PM to 8:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:468:03
214.35:458:04
314.35:458:05
414.35:458:05
514.35:458:06
614.45:458:07
714.45:458:08
814.45:458:09
914.45:468:09
1014.45:468:10
1114.45:468:11
1214.45:468:12
1314.45:468:12
1414.45:468:13
1514.45:478:14
1614.55:478:14
1714.55:478:15
1814.55:488:15
1914.55:488:16
2014.55:488:17
2114.55:498:17
2214.55:498:18
2314.55:508:18
2414.55:508:18
2514.55:518:19
2614.55:518:19
2714.55:528:20
2814.55:538:20
2914.45:538:20
3014.45:548:20
3114.45:558:21

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.6 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.17 kWh/m² to a high of 7.6 kWh/m² in December across the year — December's 7.6 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.4Intense
27.4Intense
37.5Intense
47.5Intense
57.5Intense
67.5Intense
77.5Intense
87.5Intense
97.5Intense
107.5Intense
117.6Intense
127.6Intense
137.6Intense
147.6Intense
157.6Intense
167.6Intense
177.6Intense
187.6Intense
197.6Intense
207.6Intense
217.6Intense
227.6Intense
237.6Intense
247.6Intense
257.6Intense
267.6Intense
277.6Intense
287.6Intense
297.5Intense
307.5Intense
317.5Intense
Planning a trip in December

Is December a good time to visit San Carlos de Bolívar?

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

6.7
Sightseeing
5th-best month of the year
7.3
Beach & pool
2nd-best month of the year

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

What to pack for San Carlos de Bolívar in December

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

In December, San Carlos de Bolívar sees daytime highs around 28°C and nights near 15°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in San Carlos de Bolívar 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 San Carlos de Bolívar peaks around January 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 11UV 13Jun 21UV 2
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar9Very high
Apr6High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep5High
Oct8Very high
Nov10Extreme
Dec12Extreme
Location & terrain

Where is San Carlos de Bolívar?

San Carlos de Bolívar sits at 36.2°S, 61.1°W, 95 m above sea level, in Argentina. The nearest listed city is Carlos Casares, 71 km away.

Topography around San Carlos de Bolívar

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Carlos de Bolívar.

Within 3 km, the terrain around San Carlos de Bolívar has only modest variations in elevation — a maximum elevation change of 13 m around an average of 93 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 42 m; within 80 km, only modest variations in elevation — a maximum elevation change of 221 m.

The land around San Carlos de Bolívar is covered by grassland (43%), cropland (26%) and artificial surfaces (23%) within 3 km, cropland (55%) and grassland (42%) within 16 km, and cropland (54%) and grassland (45%) within 80 km.

3 km
13 m
16 km
42 m
80 km
221 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Carlos Casares 71 km · Pehuajó 85 km · Nueve de Julio 90 km · Olavarría 102 km · Veinticinco de Mayo 123 km · Azul 128 km · Bragado 136 km · Los Toldos 137 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 San Carlos de Bolívar (-36.2307°, -61.1157°, elevation 95 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).