Cerejeiras weather in December

In December, Cerejeiras sees average daytime highs of 30°C and overnight lows near 22°C, with 269 mm of rain across 27.2 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 3rd-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 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 Cerejeiras's 10th-clearest and 5th-windiest month. For the whole year in context, see Cerejeiras's year-round climate.

Daytime high
30°
7th warmest
Overnight low
22°
12th coldest
Rainfall
269 mm
27.2 wet days
Daylight
12 h 48 min
5:36 AM – 6:23 PM
Cloud cover
84%
10th clearest
Wind
6 km/h
5th windiest
Solar energy
5.17 kWh/m²
Travel score
3.0
out of 10

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 Cerejeiras 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 32°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 Cerejeiras

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.

Cerejeiras weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°2942812.72.9
Feb29° / 22°28425.812.42.9
Mar30° / 22°25627.312.13.0
Apr30° / 22°14320.311.73.7
May29° / 20°6911.411.45.2
Jun30° / 19°173.211.26.1
Jul31° / 18°122.111.36.0
Aug32° / 19°244.211.64.7
Sep33° / 21°711211.93.6
Oct32° / 22°15720.812.33.0
Nov31° / 22°22524.212.63.0
Dec30° / 22°26927.212.83.0

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 (%)
11288
21189
31189
41189
51189
61090
71090
81090
91090
101189
111288
121189
131288
141288
151288
161288
171387
181486
191486
201486
211486
221486
231486
241387
251288
261189
271189
281090
291090
301090
31991

Chance of precipitation in December

Any precipitation

Cerejeiras gets around 269 mm of rain over 27.2 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 88% and peaks near 91% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
186
286
387
486
586
686
786
886
986
1086
1186
1286
1387
1487
1587
1688
1788
1888
1989
2089
2189
2289
2390
2490
2590
2690
2790
2890
2990
3091
3191

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 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
103943
203943
302953
402953
502953
602953
702962
802962
902962
1011962
1111962
1211962
1311971
1411971
1511971
1611971
1711971
1811971
1911971
2011971
2111971
2211971
2311971
2411971
2511971
2601981
2701981
2801981
2901972
3001972
3101972

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 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 5:31 AM to 5:43 AM, and sunset from 6:15 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:316:15
212.75:326:15
312.75:326:16
412.75:326:16
512.75:326:17
612.75:336:17
712.75:336:18
812.85:336:18
912.85:346:19
1012.85:346:19
1112.85:346:20
1212.85:356:21
1312.85:356:21
1412.85:356:22
1512.85:366:22
1612.85:366:23
1712.85:376:23
1812.85:376:24
1912.85:386:24
2012.85:386:25
2112.85:386:25
2212.85:396:26
2312.85:396:26
2412.85:406:26
2512.85:406:27
2612.85:416:27
2712.85:416:28
2812.85:426:28
2912.85:426:29
3012.85:436:29
3112.85:436:29

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.17 kWh/m².

For context, solar energy here swings from a low near 4.51 kWh/m² to a high of 5.85 kWh/m² in October across the year — December's 5.17 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in December

Hazard calendar for Cerejeiras

In seasonPeak

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

Cerejeiras'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 Cerejeiras?

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
4.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Cerejeiras.

What to pack for Cerejeiras in December

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

In December, Cerejeiras sees daytime highs around 30°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 Cerejeiras 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 Cerejeiras 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
Jan16Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul8Very high
Aug9Very high
Sep3Moderate
Oct12Extreme
Nov13Extreme
Dec14Extreme

Air quality in Cerejeiras 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 Cerejeiras is worst in September — around 65 µg/m³ PM2.5 (unhealthy), about 7.7× the cleanest month (May, 9 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateSep 1662 µg/m³May 129 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar11Good
Apr9Good
May9Good
Jun11Good
Jul9Good
Aug34Moderate
Sep65Unhealthy
Oct37Poor
Nov20Moderate
Dec13Moderate
Location & terrain

Where is Cerejeiras?

Cerejeiras sits at 13.2°S, 60.8°W, 264 m above sea level, in Brazil. The nearest listed city is Colorado do Oeste, 30 km away.

Topography around Cerejeiras

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

Within 3 km, the terrain around Cerejeiras has only modest variations in elevation — a maximum elevation change of 102 m around an average of 257 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 374 m; within 80 km, significant variations in elevation — a maximum elevation change of 498 m.

The land around Cerejeiras is covered by grassland (48%) and trees (23%) within 3 km, grassland (46%), cropland (28%) and trees (24%) within 16 km, and trees (56%) and grassland (31%) within 80 km.

3 km
102 m
16 km
374 m
80 km
498 m
treesshrubsgrasslandcroplandartificial surfaceswetland
December weather nearby: Colorado do Oeste 30 km · Vilhena 88 km · Comodoro 123 km · Rolim de Moura do Guaporé 159 km · Pimenta Bueno 174 km · Alta Floresta d'Oeste 184 km · Espigão dOeste 186 km · Rolim de Moura 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 Cerejeiras (-13.1889°, -60.8122°, elevation 264 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).