Dolores weather in December

In December, Dolores sees average daytime highs of 29°C and overnight lows near 18°C, with 115 mm of rain across 7.9 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 30°C by the end. The sky is clear or mostly clear about 51% of the time in December, and the air most often feels humid.

Daylight stretches from about 14 h 06 min at the start of December to 14 h 12 min by month's end. Set against the rest of the year, December is Dolores's 2nd-clearest and 6th-windiest month. For the whole year in context, see Dolores's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
18°
10th coldest
Rainfall
115 mm
7.9 wet days
Daylight
14 h 12 min
6:43 AM – 8:55 PM
Cloud cover
44%
2nd clearest
Wind
13 km/h
6th windiest
Solar energy
7.41 kWh/m²
Travel score
6.2
out of 10

Dolores is city in Uruguay.

Density
2,564/km²
people per km²
Founded
1801

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 30°C by the end.

A typical December day in Dolores reaches about 29°C in the afternoon and slips back to 18°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 33°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)
12716
22716
32816
42817
52817
62817
72817
82817
92817
102817
112817
122817
132817
142817
152918
162918
172918
182918
192918
202918
212918
222918
232918
242919
252919
263019
273019
283019
293019
303019
313019

Dolores weather by month

How December compares with the rest of the year at a glance. December is the 2nd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 19°987.2145.5
Feb29° / 19°1118.113.26.0
Mar27° / 17°1147.712.37.1
Apr23° / 14°1218.411.27.2
May19° / 11°766.310.36.6
Jun16° / 696.89.85.5
Jul16° / 646.2105.2
Aug18° / 866.810.86.3
Sep20° / 10°817.111.86.7
Oct23° / 13°1229.612.87.0
Nov26° / 15°1037.113.77.3
Dec29° / 18°1157.914.26.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% 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 37%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26238
36139
46238
56238
66337
76337
86337
96337
106436
116436
126436
136436
146436
156535
166535
176436
186337
196337
206337
216337
226238
236238
246238
256139
266139
276139
286139
296139
306139
316238

Chance of precipitation in December

Any precipitation

Dolores gets around 115 mm of rain over 7.9 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 25% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
124
224
324
424
524
624
725
825
925
1025
1125
1226
1326
1427
1527
1627
1727
1827
1927
2027
2127
2226
2326
2426
2526
2625
2725
2825
2924
3024
3124

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 23% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13429261010
23429261010
33328271010
43328271110
53228281110
63227281110
73127291210
83127291210
93027301210
102927301320
112827311320
122727311420
132527311420
142427321520
152327321620
162227321720
172126321830
182126311930
192025312030
201925312140
211824302340
221824302450
231723292560
241723282660
251622282770
261622272880
271621262880
281521262990
291520262990
3014202630101
3114202530101

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 06 min at the start of December to 14 h 12 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 6:41 AM to 6:50 AM, and sunset from 8:44 PM to 9:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.16:418:44
214.16:418:45
314.16:418:46
414.16:418:47
514.16:418:48
614.16:418:49
714.16:418:49
814.26:418:50
914.26:418:51
1014.26:418:51
1114.26:418:52
1214.26:428:53
1314.26:428:54
1414.26:428:54
1514.26:428:55
1614.26:438:55
1714.26:438:56
1814.26:438:57
1914.26:448:57
2014.26:448:58
2114.26:458:58
2214.26:458:59
2314.26:468:59
2414.26:469:00
2514.26:479:00
2614.26:479:00
2714.26:489:01
2814.26:489:01
2914.26:499:01
3014.26:509:02
3114.26:509:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 7.41 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.3 kWh/m² to a high of 7.41 kWh/m² in December across the year — December's 7.41 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.3Intense
27.3Intense
37.3Intense
47.4Intense
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
227.4Intense
237.4Intense
247.4Intense
257.4Intense
267.3Intense
277.3Intense
287.3Intense
297.3Intense
307.3Intense
317.3Intense
Planning a trip in December

Is December a good time to visit Dolores?

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

6.2
Sightseeing
8th-best month of the year
7.5
Beach & pool
2nd-best month of the year

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

What to pack for Dolores in December

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

In December, Dolores sees daytime highs around 29°C and nights near 18°C. Pack light clothes and sun protection. About 8 days see rain.

light clothessun protection

Sea temperature near Dolores in December

The nearest coast averages about 23°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 67 km away) is warmest in January at about 25°C and coldest in July near 13°C.

It's comfortable for a long swim from Nov 8 to Apr 22 — about 5.5 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar24Refreshing
Apr21Refreshing
May17Cool
Jun14Bracing
Jul13Bracing
Aug14Bracing
Sep15Cool
Oct18Cool
Nov21Refreshing
Dec23Refreshing

UV index in Dolores 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 Dolores peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 13Jun 18UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Dolores?

Dolores sits at 33.5°S, 58.2°W, 22 m above sea level, in Uruguay. The nearest listed city is Mercedes, 35 km away.

MercedesFray BentosCarmeloGualeguaychúTigreYoung

Topography around Dolores

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

Within 3 km, the terrain around Dolores has only modest variations in elevation — a maximum elevation change of 30 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 71 m; within 80 km, only modest variations in elevation — a maximum elevation change of 165 m.

The land around Dolores is covered by cropland (37%) and grassland (25%) within 3 km, cropland (68%) within 16 km, and cropland (37%) and grassland (26%) within 80 km.

3 km
30 m
16 km
71 m
80 km
165 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Mercedes 35 km · Fray Bentos 47 km · Carmelo 53 km · Gualeguaychú 64 km · Zárate 98 km · Campana 98 km · Tigre 105 km · Young 108 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 Dolores (-33.5301°, -58.217°, elevation 22 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).