Congonhas weather in December

In December, Congonhas sees average daytime highs of 26°C and overnight lows near 18°C, with 305 mm of rain across 24.7 wet days and about 13.2 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 6% of the time in December, and the air most often feels humid.

Daylight stretches from about 13 h 12 min at the start of December to 13 h 12 min by month's end. Set against the rest of the year, December is Congonhas's 12th-clearest and 5th-windiest month. For the whole year in context, see Congonhas's year-round climate.

Daytime high
26°
4th warmest
Overnight low
18°
11th coldest
Rainfall
305 mm
24.7 wet days
Daylight
13 h 12 min
6:14 AM – 7:29 PM
Cloud cover
80%
12th clearest
Wind
8 km/h
5th windiest
Solar energy
5.42 kWh/m²
Travel score
4.4
out of 10

Congonhas 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 26°C through the month.

A typical December day in Congonhas reaches about 26°C in the afternoon and slips back to 18°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 29°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12517
22517
32517
42517
52517
62517
72517
82517
92518
102518
112518
122618
132618
142618
152618
162618
172618
182618
192618
202618
212618
222618
232618
242618
252618
262618
272618
282618
292618
302618
312618

Congonhas weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 18°26420.613.14.8
Feb27° / 18°16915.812.75.3
Mar26° / 17°21119.812.15.1
Apr25° / 16°8713.111.56.3
May23° / 13°437.2117.2
Jun22° / 12°162.810.87.9
Jul22° / 11°92.410.98.2
Aug24° / 12°213.811.38.2
Sep25° / 14°758.811.97.1
Oct25° / 16°12414.812.55.9
Nov25° / 17°24721.6134.7
Dec26° / 18°30524.713.24.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 82%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11486
21486
31387
41288
51288
61387
71387
81387
91486
101486
111585
121585
131684
141882
151882
161981
171981
182080
192080
202179
212278
222278
232179
242278
252278
262278
272179
282179
292179
302080
311981

Chance of precipitation in December

Any precipitation

Congonhas gets around 305 mm of rain over 24.7 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 79% and peaks near 80% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
178
279
379
479
580
680
780
880
979
1079
1179
1279
1379
1478
1578
1678
1778
1878
1978
2078
2178
2279
2379
2479
2579
2680
2780
2880
2979
3079
3178

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the humid band about 56% of days. Sticky, muggy-or-worse air turns up on roughly 38% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
1135829
2125731
3115633
4105634
595635
695437
785537
885438
975538
1075439
1175439
1265539
1365539
1465638
1555738
1655738
1755738
1855738
1955738
2045838
2145838
2245838
2345739
2445739
2545640
2645640
2745541
2855441
2955441
3055441
3155441

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 12 min at the start of December to 13 h 12 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 6:11 AM to 6:22 AM, and sunset from 7:20 PM to 7:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.26:117:20
213.26:117:20
313.26:117:21
413.26:117:22
513.26:117:22
613.26:117:23
713.26:127:24
813.26:127:24
913.26:127:25
1013.26:127:25
1113.26:137:26
1213.26:137:26
1313.26:137:27
1413.26:147:28
1513.26:147:28
1613.26:147:29
1713.26:157:29
1813.26:157:30
1913.26:167:30
2013.26:167:31
2113.26:177:31
2213.26:177:32
2313.26:187:32
2413.26:187:33
2513.26:197:33
2613.26:197:34
2713.26:207:34
2813.26:207:34
2913.26:217:35
3013.26:217:35
3113.26:227:35

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.42 kWh/m².

For context, solar energy here swings from a low near 3.72 kWh/m² to a high of 5.91 kWh/m² in February across the year — December's 5.42 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.4Bright
165.4Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in December

Hazard calendar for Congonhas

In seasonPeak

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

Congonhas'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 Congonhas?

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

4.4
Sightseeing
12th-best month of the year
4.1
Beach & pool
12th-best month of the year

December is a reasonable time to visit Congonhas for sightseeing.

What to pack for Congonhas in December

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

In December, Congonhas sees daytime highs around 26°C and nights near 18°C. Pack rain gear. Worth having: light clothes and sun protection. About 25 days see rain.

rain gearlight clothessun protection

UV index in Congonhas 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 Congonhas peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highExtremeFeb 10UV 15Jun 19UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7Very high
Aug9Very high
Sep9Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Congonhas 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 Congonhas is worst in September — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (January, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1624 µg/m³Jan 1411 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Moderate
Mar13Moderate
Apr15Moderate
May18Moderate
Jun18Moderate
Jul17Moderate
Aug17Moderate
Sep26Moderate
Oct17Moderate
Nov12Moderate
Dec12Good
Location & terrain

Where is Congonhas?

Congonhas sits at 20.5°S, 43.9°W, 884 m above sea level, in Brazil. The nearest listed city is Ouro Branco, 17 km away.

Topography around Congonhas

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

Within 3 km, the terrain around Congonhas has only modest variations in elevation — a maximum elevation change of 186 m around an average of 929 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 809 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,654 m.

The land around Congonhas is covered by trees (52%), grassland (25%) and artificial surfaces (20%) within 3 km, trees (48%) and grassland (44%) within 16 km, and trees (48%) and grassland (45%) within 80 km.

3 km
186 m
16 km
809 m
80 km
1,654 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Ouro Branco 17 km · Conselheiro Lafaiete 19 km · Itabirito 29 km · Ouro Preto 39 km · Mariana 48 km · Carandaí 50 km · Brumadinho 54 km · Ibirité 58 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 Congonhas (-20.5053°, -43.8588°, elevation 884 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).