Las Breñas weather in December

In December, Las Breñas sees average daytime highs of 32°C and overnight lows near 21°C, with 141 mm of rain across 10.2 wet days and about 13.7 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 31°C in the first days to 33°C by the end. The sky is clear or mostly clear about 41% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 36 min at the start of December to 13 h 42 min by month's end. Set against the rest of the year, December is Las Breñas's 8th-clearest and 6th-windiest month. For the whole year in context, see Las Breñas's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
21°
10th coldest
Rainfall
141 mm
10.2 wet days
Daylight
13 h 42 min
6:10 AM – 7:51 PM
Cloud cover
50%
8th clearest
Wind
13 km/h
6th windiest
Solar energy
6.81 kWh/m²
Travel score
3.9
out of 10

Las Breñas is municipality of Argentina.

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 31°C in the first days to 33°C by the end.

A typical December day in Las Breñas reaches about 32°C in the afternoon and slips back to 21°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 38°C. Set against its neighbours, December runs about 2°C warmer than November and on par with January.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13120
23120
33120
43120
53120
63120
73220
83221
93221
103221
113221
123221
133221
143221
153221
163221
173321
183321
193321
203322
213322
223322
233322
243322
253322
263322
273322
283322
293322
303322
313322

How December really feels in Las Breñas

Once humidity and wind are folded in, December averages 29 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
29
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Las Breñas weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°13410.913.53.5
Feb32° / 22°12710.2134.1
Mar30° / 20°13410.412.25.1
Apr27° / 17°109911.46.8
May23° / 14°537.410.77.3
Jun21° / 12°36610.37.1
Jul21° / 10°29510.57.6
Aug25° / 12°364.2118.2
Sep27° / 14°566.411.87.4
Oct29° / 17°1139.812.65.7
Nov31° / 19°1269.313.34.9
Dec32° / 21°14110.213.73.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35842
45842
55842
65842
76040
86040
96040
106139
116238
126238
136238
146337
156337
166436
176436
186436
196337
206337
216238
226139
236139
246139
255941
265941
275941
285842
295842
305842
315842

Chance of precipitation in December

Any precipitation

Las Breñas gets around 141 mm of rain over 10.2 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
133
233
333
433
532
632
732
832
931
1031
1131
1231
1331
1432
1532
1632
1733
1833
1933
2034
2134
2234
2335
2435
2535
2635
2735
2835
2935
3035
3135

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 61% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
19142527222
29142528232
39132628232
48132628232
58132629232
68122629231
77122629242
87122629242
97122630242
107122630242
116122530242
126122531242
136122531242
146122532242
156112432242
165112432252
175112332263
185112332273
195112231283
205112131293
215112031304
224112030314
234111929334
244101929345
253101828355
263101827365
273101827375
283101826376
292111826386
302111725386
312111725396

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
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 36 min at the start of December to 13 h 42 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 6:07 AM to 6:17 AM, and sunset from 7:42 PM to 7:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.66:077:42
213.66:077:42
313.66:077:43
413.66:077:44
513.66:077:44
613.66:077:45
713.66:077:46
813.76:077:46
913.76:087:47
1013.76:087:48
1113.76:087:48
1213.76:087:49
1313.76:097:50
1413.76:097:50
1513.76:097:51
1613.76:107:51
1713.76:107:52
1813.76:107:53
1913.76:117:53
2013.76:117:54
2113.76:127:54
2213.76:127:55
2313.76:137:55
2413.76:137:55
2513.76:147:56
2613.76:147:56
2713.76:157:57
2813.76:157:57
2913.76:167:57
3013.76:167:58
3113.76:177:58

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.81 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 6.81 kWh/m² in December across the year — December's 6.81 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.9Intense
166.9Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
256.9Intense
266.9Intense
276.9Intense
286.9Intense
296.9Intense
306.9Intense
316.9Intense
Planning a trip in December

Is December a good time to visit Las Breñas?

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

3.9
Sightseeing
11th-best month of the year
6.5
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Las Breñas. The water and warmth also suit a beach or pool day.

What to pack for Las Breñas in December

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

In December, Las Breñas sees daytime highs around 32°C and nights near 21°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Las Breñas in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Las Breñas peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 19UV 14Jun 23UV 4
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr8Very high
May5High
Jun4Moderate
Jul4Moderate
Aug5High
Sep8Very high
Oct8Very high
Nov12Extreme
Dec13Extreme

Air quality in Las Breñas 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 Las Breñas is worst in August — around 21 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (April, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 2121 µg/m³Apr 236 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar8Good
Apr6Good
May6Good
Jun7Good
Jul12Moderate
Aug21Moderate
Sep19Moderate
Oct12Good
Nov9Good
Dec8Good
Location & terrain

Where is Las Breñas?

Las Breñas sits at 27.1°S, 61.1°W, 104 m above sea level, in Argentina. The nearest listed city is Charata, 18 km away.

Topography around Las Breñas

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

Within 3 km, the terrain around Las Breñas has only modest variations in elevation — a maximum elevation change of 11 m around an average of 100 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 21 m; within 80 km, only modest variations in elevation — a maximum elevation change of 126 m.

The land around Las Breñas is covered by cropland (37%), trees (25%) and artificial surfaces (21%) within 3 km, cropland (65%) and trees (30%) within 16 km, and cropland (57%) and trees (34%) within 80 km.

3 km
11 m
16 km
21 m
80 km
126 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Charata 18 km · General Pinedo 33 km · Villa Ángela 66 km · Presidencia Roque Sáenz Peña 72 km · Quitilipi 89 km · Machagai 104 km · Tres Isletas 105 km · Juan José Castelli 135 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 Las Breñas (-27.0882°, -61.0822°, elevation 104 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).