Planaltina weather in December

In December, Planaltina sees average daytime highs of 27°C and overnight lows near 19°C, with 246 mm of rain across 22.5 wet days and about 12.9 hours of daylight. It is the 9th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 9% of the time in December, and the air most often feels muggy.

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 Planaltina's 12th-clearest and 10th-windiest month. For the whole year in context, see Planaltina's year-round climate.

Daytime high
27°
9th warmest
Overnight low
19°
11th coldest
Rainfall
246 mm
22.5 wet days
Daylight
12 h 54 min
6:39 AM – 7:34 PM
Cloud cover
80%
12th clearest
Wind
7 km/h
10th windiest
Solar energy
5.49 kWh/m²
Travel score
4.4
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical December day in Planaltina reaches about 27°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 30°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)
12719
22719
32719
42719
52719
62719
72719
82719
92719
102719
112719
122719
132719
142719
152719
162719
172719
182719
192719
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719
312719

Planaltina weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°21120.512.84.7
Feb28° / 19°17518.412.54.8
Mar28° / 19°18520.312.14.8
Apr28° / 18°771211.76.1
May27° / 17°173.811.37.5
Jun26° / 15°40.611.18.4
Jul27° / 15°00.111.28.6
Aug28° / 16°51.211.57.7
Sep30° / 18°294.811.95.7
Oct30° / 19°11113.612.44.6
Nov28° / 19°23622.512.74.3
Dec27° / 19°24622.512.94.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 80%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11783
21684
31684
41684
51684
61783
71684
81684
91684
101684
111783
121882
131882
141981
151981
162080
172080
182278
192278
202278
212278
222278
232278
242278
252377
262377
272377
282377
292377
302278
312278

Chance of precipitation in December

Any precipitation

Planaltina gets around 246 mm of rain over 22.5 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 73% and peaks near 78% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
178
278
378
478
578
678
778
877
977
1076
1176
1275
1375
1474
1573
1672
1771
1871
1970
2069
2169
2268
2368
2468
2568
2668
2768
2868
2968
3069
3169

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 62% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
162767
262668
362668
462569
562569
662569
772568
872568
972568
1072568
1172667
1272667
1372766
1482864
1582963
1683062
1783161
1883260
1983359
2083458
2183557
2283656
2373756
2473756
2573756
2673657
2773657
2873558
2973558
3073459
3173360

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 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 6:35 AM to 6:46 AM, and sunset from 7:26 PM to 7:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:357:26
212.96:357:26
312.96:357:27
412.96:357:27
512.96:367:28
612.96:367:29
712.96:367:29
812.96:367:30
912.96:377:30
1012.96:377:31
1112.96:377:31
1212.96:387:32
1312.96:387:32
1412.96:387:33
1512.96:397:33
1612.96:397:34
1712.96:407:35
1812.96:407:35
1912.96:417:36
2012.96:417:36
2112.96:417:36
2212.96:427:37
2312.96:427:37
2412.96:437:38
2512.96:437:38
2612.96:447:39
2712.96:447:39
2812.96:457:40
2912.96:457:40
3012.96:467:40
3112.96:467:41

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.49 kWh/m².

For context, solar energy here swings from a low near 4.67 kWh/m² to a high of 6.23 kWh/m² in September across the year — December's 5.49 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
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in December

Hazard calendar for Planaltina

In seasonPeak

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

Planaltina'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 Planaltina?

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

4.4
Sightseeing
11th-best month of the year
4.6
Beach & pool
12th-best month of the year

December is a reasonable time to visit Planaltina for sightseeing.

What to pack for Planaltina in December

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

In December, Planaltina sees daytime highs around 27°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

UV index in Planaltina 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 Planaltina peaks around February 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 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 highExtremeFeb 16UV 16Jun 23UV 8
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar15Extreme
Apr12Extreme
May10Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep13Extreme
Oct13Extreme
Nov14Extreme
Dec13Extreme

Air quality in Planaltina 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 Planaltina is worst in September — around 24 µg/m³ PM2.5 (moderate), about 3.5× the cleanest month (July, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1923 µg/m³Jul 127 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar10Good
Apr10Good
May9Good
Jun8Good
Jul7Good
Aug10Good
Sep24Moderate
Oct17Moderate
Nov9Good
Dec9Good
Location & terrain

Where is Planaltina?

Planaltina sits at 15.5°S, 47.6°W, 1,038 m above sea level, in Brazil. The nearest listed city is Planaltina, 19 km away.

Topography around Planaltina

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

Within 3 km, the terrain around Planaltina has only modest variations in elevation — a maximum elevation change of 209 m around an average of 1,024 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 455 m; within 80 km, large variations in elevation — a maximum elevation change of 912 m.

The land around Planaltina is covered by artificial surfaces (41%) and grassland (33%) within 3 km, cropland (28%), grassland (27%) and shrubs (22%) within 16 km, and grassland (33%) and trees (26%) within 80 km.

3 km
209 m
16 km
455 m
80 km
912 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Planaltina 19 km · Sobradinho 29 km · Sobradinho II 31 km · Formosa 31 km · Itapoã 37 km · Paranoá 40 km · Lago Norte 41 km · Plano Piloto 48 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 Planaltina (-15.4528°, -47.6142°, elevation 1,038 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).