Alto Araguaia weather in December

In December, Alto Araguaia sees average daytime highs of 29°C and overnight lows near 20°C, with 249 mm of rain across 26.2 wet days and about 13 hours of daylight. It is the 9th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 5% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 hours at the start of December to 13 hours by month's end. Set against the rest of the year, December is Alto Araguaia's 11th-clearest and 9th-windiest month. For the whole year in context, see Alto Araguaia's year-round climate.

Daytime high
29°
9th warmest
Overnight low
20°
10th coldest
Rainfall
249 mm
26.2 wet days
Daylight
13 hours
5:58 AM – 7:00 PM
Cloud cover
81%
11th clearest
Wind
7 km/h
9th windiest
Solar energy
5.44 kWh/m²
Travel score
3.5
out of 10

Alto Araguaia 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 29°C through the month.

A typical December day in Alto Araguaia reaches about 29°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 31°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12920
22920
32920
42920
52920
62920
72920
82920
92920
102920
112920
122920
132920
142920
152920
162920
172920
182920
192920
202920
212920
222920
232920
242920
252920
262920
272920
282920
292921
302921
312921

How December really feels in Alto Araguaia

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

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Alto Araguaia weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°27025.712.93.5
Feb29° / 21°22222.512.63.6
Mar29° / 20°19223.512.13.7
Apr29° / 19°7412.411.65.1
May28° / 17°264.311.26.7
Jun28° / 16°111.5117.4
Jul29° / 15°60.911.17.4
Aug31° / 17°91.711.45.9
Sep32° / 19°527.711.94.5
Oct31° / 20°12517.812.43.7
Nov29° / 20°19222.712.83.6
Dec29° / 20°24926.2133.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% 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 82%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11981
21882
31783
41684
51684
61585
71585
81585
91585
101585
111585
121684
131783
141882
151882
161981
172080
182080
192080
202179
212179
222080
232080
241981
251981
261981
271882
281783
291783
301783
311684

Chance of precipitation in December

Any precipitation

Alto Araguaia gets around 249 mm of rain over 26.2 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 84% and peaks near 85% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
183
284
384
485
585
685
785
885
985
1085
1185
1285
1384
1484
1584
1684
1783
1883
1983
2083
2183
2283
2383
2483
2583
2684
2784
2884
2984
3084
3184

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 73% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1137224
2137125
3127126
4127126
5127027
6127027
7127027
8126928
9117028
10117028
11126928
12126928
13127027
14127027
15127126
16027226
17027325
18027424
19027424
20027523
21027622
22017722
23017722
24017722
25017722
26017722
27017722
28017623
29027424
30027424
31027325

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 hours at the start of December to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 5:54 AM to 6:05 AM, and sunset from 6:51 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:546:51
213.05:546:52
313.05:546:53
413.05:546:53
513.05:556:54
613.05:556:54
713.05:556:55
813.05:556:56
913.05:566:56
1013.05:566:57
1113.05:566:57
1213.05:576:58
1313.05:576:58
1413.05:576:59
1513.05:586:59
1613.05:587:00
1713.05:597:00
1813.05:597:01
1913.05:597:01
2013.06:007:02
2113.06:007:02
2213.06:017:03
2313.06:017:03
2413.06:027:04
2513.06:027:04
2613.06:037:05
2713.06:037:05
2813.06:047:06
2913.06:047:06
3013.06:057:06
3113.06:057:07

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.44 kWh/m².

For context, solar energy here swings from a low near 4.4 kWh/m² to a high of 5.98 kWh/m² in October across the year — December's 5.44 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.4Bright
315.4Bright
Planning a trip in December

Hazard calendar for Alto Araguaia

In seasonPeak

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

Alto Araguaia's monsoon runs October–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 Alto Araguaia?

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

3.5
Sightseeing
11th-best month of the year
4.3
Beach & pool
12th-best month of the year

December is a weaker month for outdoor sightseeing in Alto Araguaia.

What to pack for Alto Araguaia in December

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

In December, Alto Araguaia sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

UV index in Alto Araguaia in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Alto Araguaia peaks around January 20 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 20UV 15Jun 22UV 8
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep10Extreme
Oct11Extreme
Nov14Extreme
Dec14Extreme

Air quality in Alto Araguaia 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 Alto Araguaia is worst in September — around 25 µg/m³ PM2.5 (moderate), about 5.9× the cleanest month (June, 4 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1823 µg/m³Jun 194 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar7Good
Apr6Good
May6Good
Jun4Good
Jul5Good
Aug8Good
Sep25Moderate
Oct16Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Alto Araguaia?

Alto Araguaia sits at 17.3°S, 53.2°W, 672 m above sea level, in Brazil. The nearest listed city is Mineiros, 76 km away.

Topography around Alto Araguaia

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

Within 3 km, the terrain around Alto Araguaia has only modest variations in elevation — a maximum elevation change of 115 m around an average of 694 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 240 m; within 80 km, large variations in elevation — a maximum elevation change of 658 m.

The land around Alto Araguaia is covered by grassland (46%) and trees (29%) within 3 km, grassland (44%) and trees (35%) within 16 km, and trees (33%), grassland (33%) and cropland (25%) within 80 km.

3 km
115 m
16 km
240 m
80 km
658 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Mineiros 76 km · Costa Rica 137 km · Pedra Preta 154 km · Caiapônia 155 km · Jataí 170 km · Chapadão do Sul 176 km · Rondonópolis 178 km · Aragarças 188 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 Alto Araguaia (-17.3147°, -53.2153°, elevation 672 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).