Rondonópolis weather in December

In December, Rondonópolis sees average daytime highs of 31°C and overnight lows near 23°C, with 250 mm of rain across 24.9 wet days and about 13 hours of daylight. It is the 7th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°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 54 min at the start of December to 13 hours by month's end. Set against the rest of the year, December is Rondonópolis's 12th-clearest and 8th-windiest month. For the whole year in context, see Rondonópolis's year-round climate.

Daytime high
31°
7th warmest
Overnight low
23°
11th coldest
Rainfall
250 mm
24.9 wet days
Daylight
13 hours
6:05 AM – 7:04 PM
Cloud cover
78%
12th clearest
Wind
6 km/h
8th windiest
Solar energy
5.64 kWh/m²
Travel score
2.9
out of 10

Rondonópolis 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 31°C through the month.

A typical December day in Rondonópolis reaches about 31°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 34°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)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233123
243123
253123
263123
273123
283123
293123
303123
313123

How December really feels in Rondonópolis

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.

Rondonópolis weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°26724.612.92.9
Feb31° / 23°22322.312.62.9
Mar31° / 23°17722.412.13.1
Apr31° / 22°6911.211.64.3
May30° / 20°24411.25.7
Jun30° / 18°101.3116.3
Jul30° / 17°60.711.16.3
Aug33° / 19°81.611.44.8
Sep34° / 22°436.411.93.5
Oct33° / 23°11316.412.43.0
Nov32° / 23°1802112.83.0
Dec31° / 23°25024.9132.9

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 14% of December, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32278
42080
52080
61981
71981
81981
91981
102080
112080
122179
132179
142278
152377
162476
172575
182575
192773
202773
212773
222773
232773
242773
252674
262674
272674
282575
292575
302575
312476

Chance of precipitation in December

Any precipitation

Rondonópolis gets around 250 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 80% and peaks near 82% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
178
279
380
481
581
682
782
882
982
1082
1182
1281
1381
1480
1579
1679
1778
1878
1978
2078
2178
2278
2378
2478
2578
2679
2779
2879
2980
3080
3180

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 94% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
117911
216921
316921
415931
515931
614932
714932
813942
913942
1013942
1113942
1213942
1312952
1412952
1512952
1612952
1712952
1812952
1912952
2012952
2112952
2212952
2312952
2412952
2502971
2602971
2702971
2802971
2902971
3002971
3102962

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 54 min 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 6 minutes over December. Sunrise moves from 6:01 AM to 6:13 AM, and sunset from 6:56 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:016:56
212.96:016:56
312.96:016:57
412.96:026:57
512.96:026:58
612.96:026:58
712.96:026:59
813.06:037:00
913.06:037:00
1013.06:037:01
1113.06:047:01
1213.06:047:02
1313.06:047:02
1413.06:057:03
1513.06:057:03
1613.06:057:04
1713.06:067:05
1813.06:067:05
1913.06:077:06
2013.06:077:06
2113.06:087:06
2213.06:087:07
2313.06:097:07
2413.06:097:08
2513.06:107:08
2613.06:107:09
2713.06:117:09
2813.06:117:10
2913.06:127:10
3013.06:127:10
3113.06:137:11

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.64 kWh/m².

For context, solar energy here swings from a low near 4.44 kWh/m² to a high of 6.1 kWh/m² in October across the year — December's 5.64 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in December

Hazard calendar for Rondonópolis

In seasonPeak

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

Rondonópolis'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 Rondonópolis?

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

2.9
Sightseeing
10th-best month of the year
4.3
Beach & pool
12th-best month of the year

December is a weaker month for outdoor sightseeing in Rondonópolis.

What to pack for Rondonópolis in December

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

In December, Rondonópolis sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Rondonópolis 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 Rondonópolis peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 21UV 15Jun 21UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Rondonópolis 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 Rondonópolis is worst in September — around 31 µg/m³ PM2.5 (moderate), about 6.2× the cleanest month (July, 5 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1630 µg/m³Jul 105 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar8Good
Apr7Good
May6Good
Jun6Good
Jul5Good
Aug18Moderate
Sep31Moderate
Oct18Moderate
Nov9Good
Dec8Good
Location & terrain

Where is Rondonópolis?

Rondonópolis sits at 16.5°S, 54.6°W, 230 m above sea level, in Brazil. The nearest listed city is Pedra Preta, 24 km away.

Topography around Rondonópolis

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

Within 3 km, the terrain around Rondonópolis has only modest variations in elevation — a maximum elevation change of 105 m around an average of 232 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 270 m; within 80 km, large variations in elevation — a maximum elevation change of 620 m.

The land around Rondonópolis is covered by artificial surfaces (64%) and trees (21%) within 3 km, grassland (53%) and trees (31%) within 16 km, and grassland (45%) and trees (37%) within 80 km.

3 km
105 m
16 km
270 m
80 km
620 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Pedra Preta 24 km · Jaciara 66 km · Poxoréu 75 km · Campo Verde 118 km · Lucas 139 km · Chapada dos Guimarães 164 km · Santo Antônio do Leverger 168 km · Alto Araguaia 178 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 Rondonópolis (-16.4708°, -54.6356°, elevation 230 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).