Barros Blancos weather in December

In December, Barros Blancos sees average daytime highs of 26°C and overnight lows near 17°C, with 81 mm of rain across 8.1 wet days and about 14.3 hours of daylight. It is the 3rd-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 27°C by the end. The sky is clear or mostly clear about 47% of the time in December, and the air most often feels humid.

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 Barros Blancos's 2nd-clearest and 6th-windiest month. For the whole year in context, see Barros Blancos's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
17°
9th coldest
Rainfall
81 mm
8.1 wet days
Daylight
14 h 18 min
6:31 AM – 8:50 PM
Cloud cover
46%
2nd clearest
Wind
16 km/h
6th windiest
Solar energy
7.39 kWh/m²
Travel score
7.3
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 27°C by the end.

A typical December day in Barros Blancos reaches about 26°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 30°C. Set against its neighbours, December runs about 3°C warmer than November and about 1°C cooler than January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12416
22416
32516
42516
52516
62516
72516
82516
92516
102516
112516
122517
132617
142617
152617
162617
172617
182617
192617
202617
212617
222618
232618
242718
252718
262718
272718
282718
292718
302718
312718

Barros Blancos weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°757.114.17.1
Feb27° / 19°988.213.36.9
Mar25° / 17°968.712.37.2
Apr22° / 14°1048.111.26.9
May18° / 11°837.410.26.1
Jun15° / 858.29.74.8
Jul14° / 887.79.94.4
Aug16° / 958.210.75.2
Sep17° / 10°878.211.85.8
Oct20° / 12°1149.412.96.4
Nov23° / 14°977.913.87.2
Dec26° / 17°818.114.37.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 37%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26238
36238
46238
56238
66337
76337
86337
96337
106337
116238
126238
136337
146337
156238
166238
176337
186337
196337
206337
216337
226337
236337
246337
256337
266238
276337
286337
296337
306337
316436

Chance of precipitation in December

Any precipitation

Barros Blancos gets around 81 mm of rain over 8.1 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 (%)
125
225
325
425
525
626
726
826
926
1026
1126
1226
1327
1427
1527
1628
1728
1828
1928
2027
2127
2227
2326
2426
2526
2625
2725
2824
2924
3023
3123

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 29% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
139272670
239272670
338272680
438272781
537272781
636272781
736272881
835272891
934272991
10332829101
11322829101
12312830111
13302830121
14292730131
15282730141
16272730151
17262631161
18252631181
19242630191
20232530201
21222530221
22212430231
23202430251
24192429262
25192329272
26182329273
27172329283
28172329293
29162328294
30152328294
31152328305

Wind in December

Winds average 16 km/h in December.

Across December, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light 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 6:29 AM to 6:38 AM, and sunset from 8:39 PM to 8:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.26:298:39
214.26:298:39
314.26:298:40
414.26:298:41
514.26:298:42
614.26:298:43
714.26:298:44
814.36:298:44
914.36:298:45
1014.36:298:46
1114.36:298:46
1214.36:308:47
1314.36:308:48
1414.36:308:49
1514.36:308:49
1614.36:318:50
1714.36:318:50
1814.36:318:51
1914.36:328:51
2014.36:328:52
2114.36:328:53
2214.36:338:53
2314.36:338:53
2414.36:348:54
2514.36:348:54
2614.36:358:55
2714.36:368:55
2814.36:368:55
2914.36:378:56
3014.36:378:56
3114.36:388:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.39 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.15 kWh/m² to a high of 7.39 kWh/m² in December across the year — December's 7.39 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.3Intense
47.3Intense
57.4Intense
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
217.4Intense
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 Barros Blancos?

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

7.3
Sightseeing
1st-best month of the year
6.8
Beach & pool
2nd-best month of the year

December is one of the better times to visit Barros Blancos for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Barros Blancos in December

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

In December, Barros Blancos sees daytime highs around 26°C and nights near 17°C. Pack sun protection. Worth having: light clothes and rain gear. About 8 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Barros Blancos in December

The nearest coast averages about 22°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 18 km away) is warmest in February at about 24°C and coldest in July near 11°C.

It's comfortable for a long swim from Nov 27 to Apr 9 — about 4.4 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb24Refreshing
Mar22Refreshing
Apr19Cool
May16Cool
Jun13Bracing
Jul11Bracing
Aug12Bracing
Sep13Bracing
Oct16Cool
Nov19Cool
Dec22Refreshing

UV index in Barros Blancos in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Barros Blancos peaks around January 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 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 17UV 12Jun 18UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar10Very high
Apr6High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec11Extreme
Location & terrain

Where is Barros Blancos?

Barros Blancos sits at 34.8°S, 56.0°W, 34 m above sea level, in Uruguay. The nearest listed city is Pando, 6.0 km away.

Delta del TigreCanelones

Topography around Barros Blancos

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

Within 3 km, the terrain around Barros Blancos has only modest variations in elevation — a maximum elevation change of 48 m around an average of 32 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 89 m; within 80 km, significant variations in elevation — a maximum elevation change of 494 m.

The land around Barros Blancos is covered by grassland (44%), trees (25%) and artificial surfaces (25%) within 3 km, grassland (43%) within 16 km, and grassland (35%) and water (34%) within 80 km.

3 km
48 m
16 km
89 m
80 km
494 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Pando 6.0 km · Paso de Carrasco 13 km · Las Piedras 20 km · La Paz 20 km · Progreso 22 km · Montevideo 24 km · Delta del Tigre 33 km · Canelones 36 km

Uruguay travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / I / L
230 V · 50 Hz
Prices
≈ 66% of US
price level, 2025
GDP per capita
$25,216
2025
Happiness
6.6 / 10
World Happiness, 2025
Homicide rate
11.2
per 100k, 2023
Road deaths
14.8
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 542
Religion
none 47%Roman Catholic 37%Protestant 15%atheist 10%

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 Barros Blancos (-34.7524°, -56.0026°, elevation 34 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).