Colniza weather in December

In December, Colniza sees average daytime highs of 30°C and overnight lows near 23°C, with 305 mm of rain across 29.1 wet days and about 12.5 hours of daylight. It is the 9th-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 1% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of December to 12 h 30 min by month's end. Set against the rest of the year, December is Colniza's 9th-clearest and 8th-windiest month. For the whole year in context, see Colniza's year-round climate.

Daytime high
30°
9th warmest
Overnight low
23°
8th coldest
Rainfall
305 mm
29.1 wet days
Daylight
12 h 30 min
6:36 AM – 7:09 PM
Cloud cover
87%
9th clearest
Wind
5 km/h
8th windiest
Solar energy
4.74 kWh/m²
Travel score
2.8
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 Colniza reaches about 30°C in the afternoon and slips back to 23°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 32°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)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
222923
232923
242923
252923
262923
272923
282923
292923
302923
312923

How December really feels in Colniza

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.

Colniza weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 23°3233012.52.8
Feb29° / 23°30927.112.32.7
Mar30° / 23°30129.512.12.7
Apr30° / 23°22026.211.83.0
May30° / 22°8816.511.64.1
Jun32° / 22°17411.55.0
Jul33° / 22°91.911.54.3
Aug35° / 23°25411.73.2
Sep33° / 24°10114.911.93.0
Oct32° / 23°20424.812.22.8
Nov30° / 23°24826.712.42.7
Dec30° / 23°30529.112.52.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 5% of December, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3793
4793
5793
6793
7694
8694
9694
10694
11694
12694
13793
14793
15793
16793
17793
18793
19793
20793
21793
22793
23793
24793
25793
26793
27793
28694
29694
30694
31694

Chance of precipitation in December

Any precipitation

Colniza gets around 305 mm of rain over 29.1 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 94% and peaks near 96% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
191
292
392
492
592
692
793
893
993
1093
1194
1294
1394
1494
1594
1694
1794
1894
1994
2094
2195
2295
2395
2495
2595
2695
2796
2896
2996
3096
3196

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1919
2919
3928
4928
5928
6937
7937
8937
9946
10946
11946
12955
13955
14955
15964
16964
17964
18964
19973
20973
21973
22973
23973
24973
25973
26973
27973
28964
29964
30964
31964

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 30 min at the start of December to 12 h 30 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 6:31 AM to 6:43 AM, and sunset from 7:01 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:317:01
212.56:317:02
312.56:317:02
412.56:317:03
512.56:327:03
612.56:327:04
712.56:327:04
812.56:337:05
912.56:337:05
1012.56:337:06
1112.56:347:06
1212.56:347:07
1312.56:357:07
1412.56:357:08
1512.56:357:08
1612.56:367:09
1712.56:367:09
1812.56:377:10
1912.56:377:10
2012.56:387:11
2112.56:387:11
2212.56:397:12
2312.56:397:12
2412.56:407:12
2512.56:407:13
2612.56:417:13
2712.56:417:14
2812.56:417:14
2912.56:427:15
3012.56:427:15
3112.56:437:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.74 kWh/m².

For context, solar energy here swings from a low near 4.49 kWh/m² to a high of 5.57 kWh/m² in September across the year — December's 4.74 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in December

Hazard calendar for Colniza

In seasonPeak

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

Colniza's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Colniza?

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

2.8
Sightseeing
7th-best month of the year
3.8
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Colniza.

What to pack for Colniza in December

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

In December, Colniza sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

UV index in Colniza 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 Colniza peaks around February 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 14 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeFeb 17UV 15Sep 14UV 5
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep4Moderate
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Colniza 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 Colniza is worst in September — around 124 µg/m³ PM2.5 (unhealthy), about 16.6× the cleanest month (July, 8 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyModerateSep 14115 µg/m³Jul 98 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr9Good
May8Good
Jun8Good
Jul8Good
Aug62Unhealthy
Sep124Unhealthy
Oct30Moderate
Nov17Moderate
Dec13Moderate
Location & terrain

Where is Colniza?

Colniza sits at 9.4°S, 59.0°W, 142 m above sea level, in Brazil. The nearest listed city is Aripuanã, 97 km away.

JuaraApuíEspigão dOesteBrasnorteMachadinho d'OestePimenta Bueno

Topography around Colniza

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

Within 3 km, the terrain around Colniza has only modest variations in elevation — a maximum elevation change of 125 m around an average of 158 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 294 m; within 80 km, significant variations in elevation — a maximum elevation change of 341 m.

The land around Colniza is covered by grassland (68%) and trees (32%) within 3 km, grassland (66%) and trees (34%) within 16 km, and trees (80%) and grassland (20%) within 80 km.

3 km
125 m
16 km
294 m
80 km
341 m
treesgrasslandwater
December weather nearby: Aripuanã 97 km · Juína 226 km · Juara 263 km · Apuí 264 km · Espigão dOeste 320 km · Brasnorte 321 km · Machadinho d'Oeste 324 km · Pimenta Bueno 346 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 Colniza (-9.4092°, -59.025°, elevation 142 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).