Alegrete weather in December

In December, Alegrete sees average daytime highs of 31°C and overnight lows near 19°C, with 136 mm of rain across 9.5 wet days and about 13.9 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 30°C in the first days to 31°C by the end. The sky is clear or mostly clear about 44% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 48 min at the start of December to 13 h 54 min by month's end. Set against the rest of the year, December is Alegrete's 5th-clearest and 6th-windiest month. For the whole year in context, see Alegrete's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
19°
10th coldest
Rainfall
136 mm
9.5 wet days
Daylight
13 h 54 min
6:42 AM – 8:36 PM
Cloud cover
50%
5th clearest
Wind
13 km/h
6th windiest
Solar energy
6.97 kWh/m²
Travel score
4.9
out of 10

Alegrete is human settlement in Brazil.

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 30°C in the first days to 31°C by the end.

A typical December day in Alegrete reaches about 31°C in the afternoon and slips back to 19°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 35°C. Set against its neighbours, December runs about 3°C warmer than November and about 1°C cooler than January.

10°20°30°40°151015202531
Avg high (°C)Avg low (°C)
13018
23018
33018
43018
53018
63018
73018
83018
93019
103019
113019
123019
133019
143019
153119
163119
173119
183119
193119
203120
213120
223120
233120
243120
253120
263120
273120
283120
293120
303120
313220

How December really feels in Alegrete

Once humidity and wind are folded in, December averages 7 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
7
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.

Alegrete 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
Jan31° / 21°14311.613.74.3
Feb30° / 20°13210.713.14.7
Mar29° / 19°1249.712.25.7
Apr26° / 16°1629.511.36.9
May22° / 12°1228.410.56.9
Jun19° / 11°1349.510.16.2
Jul19° / 10°1248.910.36.4
Aug21° / 11°1098.410.97.0
Sep23° / 13°1559.611.86.9
Oct25° / 15°21111.212.76.7
Nov28° / 17°1429.113.56.3
Dec31° / 19°1369.513.94.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% 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 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35842
45842
55842
65842
75842
85842
95842
105941
115842
125842
135842
145842
155743
165743
175743
185743
195644
205644
215644
225644
235743
245743
255743
265743
275644
285743
295743
305743
315941

Chance of precipitation in December

Any precipitation

Alegrete gets around 136 mm of rain over 9.5 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 31% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
130
229
329
429
529
629
728
828
928
1028
1128
1229
1329
1430
1530
1631
1731
1832
1932
2032
2133
2233
2333
2434
2534
2634
2734
2834
2933
3033
3133

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 44% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11526272660
21525272660
31625272760
41624272760
51624272760
61623272870
71622272870
81622272870
91521272980
101521272980
111520272990
121420273090
1314192730100
1413192730110
1513182731120
1612172731120
1711172731130
1811162731141
1910162631151
2010152631171
219152631181
229152531191
238152431202
248152430212
258142330222
268142330232
277142230242
287142229253
297142229263
307142128263
316142128273

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 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
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 13 h 48 min at the start of December to 13 h 54 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 6:40 AM to 6:50 AM, and sunset from 8:26 PM to 8:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.86:408:26
213.86:408:27
313.86:408:28
413.86:408:28
513.86:408:29
613.86:408:30
713.86:408:31
813.96:408:31
913.96:408:32
1013.96:418:33
1113.96:418:33
1213.96:418:34
1313.96:418:35
1413.96:428:35
1513.96:428:36
1613.96:428:36
1713.96:438:37
1813.96:438:38
1913.96:438:38
2013.96:448:39
2113.96:448:39
2213.96:458:40
2313.96:458:40
2413.96:468:41
2513.96:468:41
2613.96:478:41
2713.96:478:42
2813.96:488:42
2913.96:488:42
3013.96:498:43
3113.96:508:43

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.97 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 6.97 kWh/m² in December across the year — December's 6.97 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.0Intense
27.0Intense
37.0Intense
47.0Intense
57.0Intense
67.0Intense
77.0Intense
87.0Intense
97.0Intense
107.0Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
167.0Intense
177.0Intense
187.0Intense
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 Alegrete?

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

4.9
Sightseeing
10th-best month of the year
6.9
Beach & pool
3rd-best month of the year

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

What to pack for Alegrete in December

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

In December, Alegrete sees daytime highs around 31°C and nights near 19°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Alegrete 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 Alegrete peaks around January 20 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 — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighHighExtremeJan 20UV 13Jun 18UV 3
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar10Extreme
Apr8Very high
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep8Very high
Oct4Moderate
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Alegrete?

Alegrete sits at 29.8°S, 55.8°W, 102 m above sea level, in Brazil. The nearest listed city is São Francisco de Assis, 69 km away.

Topography around Alegrete

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

Within 3 km, the terrain around Alegrete has only modest variations in elevation — a maximum elevation change of 48 m around an average of 86 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, significant variations in elevation — a maximum elevation change of 335 m.

The land around Alegrete is covered by trees (27%), grassland (26%) and artificial surfaces (26%) within 3 km, grassland (69%) within 16 km, and grassland (63%) and cropland (24%) within 80 km.

3 km
48 m
16 km
130 m
80 km
335 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: São Francisco de Assis 69 km · Quaraí 92 km · Artigas 95 km · Rosário do Sul 100 km · Itaqui 104 km · Santiago 111 km · Uruguaiana 125 km · Paso de los Libres 125 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Alegrete (-29.7831°, -55.7919°, elevation 102 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).