Palmas weather in December

In December, Palmas sees average daytime highs of 30°C and overnight lows near 22°C, with 296 mm of rain across 24.9 wet days and about 12.6 hours of daylight. It is the 9th-warmest and 4th-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 9% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of December to 12 h 36 min by month's end. Set against the rest of the year, December is Palmas's 9th-clearest and 9th-windiest month. For the whole year in context, see Palmas's year-round climate.

Daytime high
30°
9th warmest
Overnight low
22°
9th coldest
Rainfall
296 mm
24.9 wet days
Daylight
12 h 36 min
5:52 AM – 6:27 PM
Cloud cover
80%
9th clearest
Wind
5 km/h
9th windiest
Solar energy
5.37 kWh/m²
Travel score
3.0
out of 10

Palmas 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 Palmas 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 on par with 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 Palmas

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.

Palmas weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°35427.212.52.9
Feb30° / 22°3162512.32.9
Mar30° / 22°31326.712.12.9
Apr31° / 22°19218.811.83.5
May32° / 22°557.111.54.3
Jun32° / 21°30.411.44.9
Jul33° / 20°10.111.54.7
Aug34° / 21°10.311.73.7
Sep35° / 23°253.511.93.0
Oct33° / 23°12915.612.23.0
Nov31° / 23°24821.712.53.1
Dec30° / 22°29624.912.63.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11981
21981
32080
42179
52179
62179
72179
82080
92080
102080
112179
122080
131981
142080
152080
162080
172080
182080
192080
202080
212080
222080
232080
242080
252080
262080
272080
281981
292080
302080
312080

Chance of precipitation in December

Any precipitation

Palmas gets around 296 mm of rain over 24.9 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 81% and peaks near 85% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
177
277
377
477
577
678
778
879
979
1080
1180
1281
1381
1482
1582
1682
1782
1882
1982
2082
2183
2283
2383
2483
2583
2684
2784
2884
2985
3085
3185

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 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)
1892
2892
3892
4892
5793
6793
7793
8793
9793
10793
11793
12694
13694
14694
15694
16694
17694
18694
19793
20793
21793
22793
23793
24793
25793
26793
27793
28793
29694
30694
31694

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 36 min at the start of December to 12 h 36 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 5:47 AM to 5:59 AM, and sunset from 6:20 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:476:20
212.65:476:20
312.65:476:21
412.65:476:21
512.65:486:22
612.65:486:22
712.65:486:23
812.65:496:23
912.65:496:24
1012.65:496:24
1112.65:506:25
1212.65:506:25
1312.65:506:26
1412.65:516:26
1512.65:516:27
1612.65:526:27
1712.65:526:28
1812.65:536:28
1912.65:536:29
2012.65:546:29
2112.65:546:30
2212.65:546:30
2312.65:556:31
2412.65:556:31
2512.65:566:32
2612.65:566:32
2712.65:576:32
2812.65:576:33
2912.65:586:33
3012.65:586:34
3112.65:596:34

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.37 kWh/m².

For context, solar energy here swings from a low near 5.01 kWh/m² to a high of 6.25 kWh/m² in September across the year — December's 5.37 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in December

Hazard calendar for Palmas

In seasonPeak

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

Palmas's monsoon runs November–April, 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 Palmas?

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

3.0
Sightseeing
7th-best month of the year
4.3
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Palmas.

What to pack for Palmas in December

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

In December, Palmas 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 Palmas 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 Palmas peaks around February 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 17UV 15Jun 22UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug10Extreme
Sep12Extreme
Oct10Extreme
Nov12Extreme
Dec12Extreme

Air quality in Palmas 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 Palmas is worst in September — around 42 µg/m³ PM2.5 (poor), about 5.6× the cleanest month (May, 8 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodSep 2342 µg/m³May 138 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar10Good
Apr9Good
May8Good
Jun10Good
Jul10Good
Aug21Moderate
Sep42Poor
Oct41Poor
Nov14Moderate
Dec10Good
Location & terrain

Where is Palmas?

Palmas sits at 10.2°S, 48.3°W, 271 m above sea level, in Brazil. The nearest listed city is Paraíso do Tocantins, 59 km away.

Topography around Palmas

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

Within 3 km, the terrain around Palmas has only modest variations in elevation — a maximum elevation change of 94 m around an average of 257 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 497 m; within 80 km, significant variations in elevation — a maximum elevation change of 572 m.

The land around Palmas is covered by artificial surfaces (47%), grassland (30%) and trees (20%) within 3 km, trees (34%), grassland (31%) and water (24%) within 16 km, and trees (42%) and grassland (41%) within 80 km.

3 km
94 m
16 km
497 m
80 km
572 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Paraíso do Tocantins 59 km · Porto Nacional 61 km · Miracema do Tocantins 67 km · Guaraí 150 km · Lagoa da Confusão 158 km · Gurupi 192 km · Santa Maria das Barreiras 209 km · Formoso do Araguaia 224 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 Palmas (-10.1675°, -48.3277°, elevation 271 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).