Ribeirão Branco weather in December

In December, Ribeirão Branco sees average daytime highs of 26°C and overnight lows near 17°C, with 198 mm of rain across 21.3 wet days and about 13.5 hours of daylight. It is the 3rd-warmest and 3rd-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 11% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 24 min at the start of December to 13 h 30 min by month's end. Set against the rest of the year, December is Ribeirão Branco's 9th-clearest and 4th-windiest month. For the whole year in context, see Ribeirão Branco's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
17°
9th coldest
Rainfall
198 mm
21.3 wet days
Daylight
13 h 30 min
6:27 AM – 7:56 PM
Cloud cover
75%
9th clearest
Wind
9 km/h
4th windiest
Solar energy
5.48 kWh/m²
Travel score
4.8
out of 10

Ribeirão Branco 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 Ribeirão Branco reaches about 26°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 30°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12516
22616
32617
42617
52617
62617
72617
82617
92617
102617
112617
122617
132617
142617
152617
162617
172617
182617
192617
202618
212618
222618
232618
242718
252718
262718
272718
282718
292718
302718
312718

Ribeirão Branco weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 18°28025.313.34.2
Feb27° / 18°21222.312.84.2
Mar26° / 18°16321.312.24.9
Apr24° / 16°7511.411.56.5
May21° / 13°8310.110.86.5
Jun21° / 12°797.510.56.8
Jul20° / 11°786.610.76.9
Aug22° / 11°566.911.27.2
Sep23° / 13°1181111.86.5
Oct24° / 15°13615.512.65.8
Nov25° / 16°14517.613.25.4
Dec26° / 17°19821.313.54.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12476
22377
32476
42476
52278
62377
72377
82377
92377
102476
112476
122476
132575
142575
152575
162674
172674
182773
192773
202773
212773
222773
232773
242674
252674
262575
272476
282377
292278
302278
312179

Chance of precipitation in December

Any precipitation

Ribeirão Branco gets around 198 mm of rain over 21.3 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 69% and peaks near 74% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
163
264
365
466
566
667
767
867
968
1068
1169
1269
1369
1470
1570
1670
1770
1871
1971
2071
2171
2271
2371
2471
2571
2672
2772
2873
2973
3074
3174

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 49% of days. Sticky, muggy-or-worse air turns up on roughly 49% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
142045320
231945330
331944340
431844360
521843370
621842380
721841400
821740410
921738420
1021737440
1121636450
1221636460
1321635480
1421534490
1521534500
1621433510
1711433520
1811432530
1911332531
2011332531
2111231551
2211231551
2311131561
2411031562
2501031572
260931582
270930592
280930583
290930583
300829603
310829603

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 24 min at the start of December to 13 h 30 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 6:23 AM to 6:34 AM, and sunset from 7:47 PM to 8:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:237:47
213.46:237:47
313.46:237:48
413.46:237:49
513.46:247:49
613.46:247:50
713.46:247:51
813.56:247:51
913.56:247:52
1013.56:257:52
1113.56:257:53
1213.56:257:54
1313.56:257:54
1413.56:267:55
1513.56:267:55
1613.56:277:56
1713.56:277:56
1813.56:277:57
1913.56:287:58
2013.56:287:58
2113.56:297:59
2213.56:297:59
2313.56:307:59
2413.56:308:00
2513.56:318:00
2613.56:318:01
2713.56:328:01
2813.56:328:02
2913.56:338:02
3013.56:338:02
3113.56:348:03

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.48 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.03 kWh/m² to a high of 5.48 kWh/m² in December across the year — December's 5.48 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in December

Hazard calendar for Ribeirão Branco

In seasonPeak

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

Ribeirão Branco's rainy season runs October–March, 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 Ribeirão Branco?

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

4.8
Sightseeing
10th-best month of the year
4.6
Beach & pool
7th-best month of the year

December is a reasonable time to visit Ribeirão Branco for sightseeing.

What to pack for Ribeirão Branco in December

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

In December, Ribeirão Branco sees daytime highs around 26°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 21 days see rain.

rain gearlight clothessun protection

UV index in Ribeirão Branco 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 Ribeirão Branco peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 19UV 15Jul 11UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug7Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Ribeirão Branco?

Ribeirão Branco sits at 24.2°S, 48.8°W, 873 m above sea level, in Brazil. The nearest listed city is Guapiara, 24 km away.

Topography around Ribeirão Branco

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

Within 3 km, the terrain around Ribeirão Branco has only modest variations in elevation — a maximum elevation change of 153 m around an average of 855 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 437 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,316 m.

The land around Ribeirão Branco is covered by trees (52%) and grassland (30%) within 3 km, trees (73%) within 16 km, and trees (71%) within 80 km.

3 km
153 m
16 km
437 m
80 km
1,316 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Guapiara 24 km · Itapeva 29 km · Apiaí 33 km · Capão Bonito 49 km · Buri 50 km · Itaberá 55 km · Itararé 59 km · Sengés 72 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 Ribeirão Branco (-24.2208°, -48.7656°, elevation 873 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).