Colorado do Oeste weather in December

In December, Colorado do Oeste sees average daytime highs of 29°C and overnight lows near 22°C, with 233 mm of rain across 26.8 wet days and about 12.8 hours of daylight. It is the 8th-warmest and 3rd-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 4% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 42 min at the start of December to 12 h 48 min by month's end. Set against the rest of the year, December is Colorado do Oeste's 10th-clearest and 5th-windiest month. For the whole year in context, see Colorado do Oeste's year-round climate.

Daytime high
29°
8th warmest
Overnight low
22°
11th coldest
Rainfall
233 mm
26.8 wet days
Daylight
12 h 48 min
5:35 AM – 6:21 PM
Cloud cover
84%
10th clearest
Wind
7 km/h
5th windiest
Solar energy
5.1 kWh/m²
Travel score
3.2
out of 10

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 Colorado do Oeste reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°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)
12922
22922
32922
42922
52922
62922
72922
82922
92922
102922
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922
312922

How December really feels in Colorado do Oeste

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.

Colorado do Oeste weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°25528.612.73.1
Feb29° / 22°24825.712.43.1
Mar29° / 22°21927.712.13.1
Apr29° / 21°11620.411.73.9
May29° / 20°5611.411.45.4
Jun29° / 19°132.711.26.4
Jul30° / 18°101.711.36.2
Aug32° / 19°213.811.65.0
Sep32° / 21°6711.711.93.9
Oct31° / 22°13619.812.33.4
Nov30° / 22°18823.612.63.2
Dec29° / 22°23326.812.83.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11189
21189
31288
41288
51189
61189
71189
81189
91189
101189
111288
121288
131288
141288
151288
161288
171387
181387
191387
201387
211387
221387
231387
241387
251189
261189
271189
281090
291090
301090
31991

Chance of precipitation in December

Any precipitation

Colorado do Oeste gets around 233 mm of rain over 26.8 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 87% and peaks near 92% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
184
284
384
484
584
684
784
884
985
1085
1185
1285
1386
1486
1587
1687
1787
1888
1988
2088
2188
2288
2389
2489
2589
2690
2790
2891
2991
3091
3192

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 97% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
100496
200397
300397
400397
500397
600397
700397
800397
910396
1010396
1110396
1210396
1310297
1410297
1511296
1611296
1711296
1811296
1911296
2011296
2111296
2211296
2301297
2401297
2500298
2600397
2700397
2800397
2900397
3000397
3100397

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 6 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
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 42 min at the start of December to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over December. Sunrise moves from 5:30 AM to 5:42 AM, and sunset from 6:13 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:306:13
212.75:316:14
312.75:316:15
412.75:316:15
512.75:316:16
612.75:326:16
712.75:326:17
812.75:326:17
912.85:336:18
1012.85:336:18
1112.85:336:19
1212.85:346:19
1312.85:346:20
1412.85:346:20
1512.85:356:21
1612.85:356:21
1712.85:366:22
1812.85:366:22
1912.85:376:23
2012.85:376:23
2112.85:376:24
2212.85:386:24
2312.85:386:25
2412.85:396:25
2512.85:396:26
2612.85:406:26
2712.85:406:27
2812.85:416:27
2912.85:416:27
3012.85:426:28
3112.85:426:28

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.1 kWh/m².

For context, solar energy here swings from a low near 4.51 kWh/m² to a high of 5.8 kWh/m² in October across the year — December's 5.1 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Colorado do Oeste

In seasonPeak

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

Colorado do Oeste's monsoon runs October–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 Colorado do Oeste?

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

3.2
Sightseeing
8th-best month of the year
4.1
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Colorado do Oeste.

What to pack for Colorado do Oeste in December

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

In December, Colorado do Oeste sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

UV index in Colorado do Oeste 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 Colorado do Oeste peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 15 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeJan 21UV 15Sep 15UV 4
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul8Very high
Aug9Very high
Sep3Moderate
Oct12Extreme
Nov13Extreme
Dec14Extreme

Air quality in Colorado do Oeste 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 Colorado do Oeste is worst in September — around 66 µg/m³ PM2.5 (unhealthy), about 8.1× the cleanest month (May, 8 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateSep 1562 µg/m³May 168 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar11Good
Apr9Good
May8Good
Jun9Good
Jul10Good
Aug39Poor
Sep66Unhealthy
Oct27Moderate
Nov17Moderate
Dec12Moderate
Location & terrain

Where is Colorado do Oeste?

Colorado do Oeste sits at 13.1°S, 60.5°W, 433 m above sea level, in Brazil. The nearest listed city is Cerejeiras, 30 km away.

Topography around Colorado do Oeste

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

Within 3 km, the terrain around Colorado do Oeste has only modest variations in elevation — a maximum elevation change of 122 m around an average of 428 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 337 m; within 80 km, significant variations in elevation — a maximum elevation change of 488 m.

The land around Colorado do Oeste is covered by grassland (61%) and trees (25%) within 3 km, grassland (66%) and trees (33%) within 16 km, and trees (57%) and grassland (30%) within 80 km.

3 km
122 m
16 km
337 m
80 km
488 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: Cerejeiras 30 km · Vilhena 60 km · Comodoro 102 km · Pimenta Bueno 176 km · Espigão dOeste 184 km · Rolim de Moura do Guaporé 188 km · Sapezal 192 km · Alta Floresta d'Oeste 200 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 Colorado do Oeste (-13.1167°, -60.5417°, elevation 433 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).