Barra do Garças weather in December

In December, Barra do Garças sees average daytime highs of 30°C and overnight lows near 22°C, with 291 mm of rain across 25.3 wet days and about 12.9 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 7% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 54 min at the start of December to 12 h 54 min by month's end. Set against the rest of the year, December is Barra do Garças's 12th-clearest and 10th-windiest month. For the whole year in context, see Barra do Garças's year-round climate.

Daytime high
30°
11th warmest
Overnight low
22°
9th coldest
Rainfall
291 mm
25.3 wet days
Daylight
12 h 54 min
5:57 AM – 6:53 PM
Cloud cover
80%
12th clearest
Wind
5 km/h
10th windiest
Solar energy
5.31 kWh/m²
Travel score
3.0
out of 10

Barra do Garças 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

Day-to-day highs hold fairly steady near 30°C through the month.

A typical December day in Barra do Garças reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 33°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13022
23022
33022
43022
53022
63022
73022
83022
93022
103022
113022
123022
133022
143022
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253022
263022
273022
283022
293022
303022
313022

How December really feels in Barra do Garças

Once humidity and wind are folded in, December averages 31 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
31
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.

Barra do Garças weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°29624.412.83.1
Feb31° / 22°2302212.53.1
Mar31° / 22°19022.612.13.2
Apr31° / 22°7011.611.74.1
May31° / 20°132.611.35.2
Jun31° / 18°30.611.15.7
Jul32° / 18°10.311.25.6
Aug34° / 19°40.611.54.2
Sep35° / 22°305.411.93.0
Oct34° / 23°9915.512.42.7
Nov31° / 22°20822.712.72.9
Dec30° / 22°29125.312.93.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11981
21882
31783
41783
51783
61684
71684
81684
91783
101882
111882
121882
132080
142080
152080
162278
172278
182278
192377
202377
212377
222377
232278
242278
252278
262080
272179
282179
292080
301981
311981

Chance of precipitation in December

Any precipitation

Barra do Garças gets around 291 mm of rain over 25.3 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 81% and peaks near 84% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
182
283
383
484
584
684
784
884
984
1084
1184
1284
1384
1483
1583
1682
1782
1881
1980
2080
2179
2279
2379
2479
2578
2678
2778
2878
2979
3079
3179

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 92% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
12890
21792
31792
41693
51693
61693
71693
81693
91792
101792
111792
121891
131891
141891
151891
161891
171891
181990
191990
201990
211990
221891
231891
241891
251792
261792
271693
281693
291594
301594
311594

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 54 min at the start of December to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 5:52 AM to 6:04 AM, and sunset from 6:45 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:526:45
212.95:536:46
312.95:536:46
412.95:536:47
512.95:536:47
612.95:546:48
712.95:546:48
812.95:546:49
912.95:546:50
1012.95:556:50
1112.95:556:51
1212.95:556:51
1312.95:566:52
1412.95:566:52
1512.95:576:53
1612.95:576:53
1712.95:576:54
1812.95:586:54
1912.95:586:55
2012.95:596:55
2112.95:596:56
2212.96:006:56
2312.96:006:57
2412.96:016:57
2512.96:016:58
2612.96:026:58
2712.96:026:59
2812.96:036:59
2912.96:036:59
3012.96:047:00
3112.96:047:00

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.31 kWh/m².

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 6.14 kWh/m² in October across the year — December's 5.31 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.3Bright
Planning a trip in December

Hazard calendar for Barra do Garças

In seasonPeak

In December, Barra do Garças sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Barra do Garças's monsoon runs November–March, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Barra do Garças?

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

3.0
Sightseeing
9th-best month of the year
4.3
Beach & pool
12th-best month of the year

December is a weaker month for outdoor sightseeing in Barra do Garças.

What to pack for Barra do Garças in December

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

In December, Barra do Garças sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Barra do Garças 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 Barra do Garças peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 22UV 15Jun 22UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep12Extreme
Oct12Extreme
Nov14Extreme
Dec13Extreme

Air quality in Barra do Garças 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 Barra do Garças is worst in September — around 34 µg/m³ PM2.5 (moderate), about 8.1× the cleanest month (July, 4 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1731 µg/m³Jul 114 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar9Good
Apr8Good
May6Good
Jun6Good
Jul4Good
Aug12Moderate
Sep34Moderate
Oct15Moderate
Nov8Good
Dec8Good
Location & terrain

Where is Barra do Garças?

Barra do Garças sits at 15.9°S, 52.3°W, 302 m above sea level, in Brazil. The nearest listed city is Aragarças, 1.0 km away.

Topography around Barra do Garças

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

Within 3 km, the terrain around Barra do Garças has significant variations in elevation — a maximum elevation change of 378 m around an average of 358 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 487 m; within 80 km, large variations in elevation — a maximum elevation change of 753 m.

The land around Barra do Garças is covered by trees (41%) and artificial surfaces (36%) within 3 km, trees (41%) and grassland (40%) within 16 km, and grassland (52%) and trees (31%) within 80 km.

3 km
378 m
16 km
487 m
80 km
753 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Aragarças 1.0 km · Caiapônia 128 km · Iporá 136 km · Nova Xavantina 137 km · Jussara 149 km · Campinápolis 161 km · Alto Araguaia 188 km · Mineiros 189 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 Barra do Garças (-15.89°, -52.2567°, elevation 302 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).