Sorocaba weather in December

In December, Sorocaba sees average daytime highs of 29°C and overnight lows near 19°C, with 162 mm of rain across 17.8 wet days and about 13.4 hours of daylight. It is the 3rd-warmest and 2nd-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 18% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 18 min at the start of December to 13 h 24 min by month's end. Set against the rest of the year, December is Sorocaba's 11th-clearest and 5th-windiest month. For the whole year in context, see Sorocaba's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
19°
10th coldest
Rainfall
162 mm
17.8 wet days
Daylight
13 h 24 min
6:23 AM – 7:49 PM
Cloud cover
69%
11th clearest
Wind
10 km/h
5th windiest
Solar energy
5.88 kWh/m²
Travel score
4.6
out of 10

Sorocaba is human settlement in Brazil.

Air quality
Good
PM10 22.2 µg/m³ · 2019

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 29°C through the month.

A typical December day in Sorocaba reaches about 29°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 32°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12818
22819
32819
42819
52819
62819
72819
82819
92819
102819
112819
122819
132819
142919
152919
162919
172919
182919
192919
202919
212919
222919
232919
242919
252920
262920
272920
282920
292920
302920
312920

Sorocaba weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°21821.313.34.1
Feb29° / 20°14517.612.84.3
Mar28° / 19°10616.112.25.2
Apr27° / 17°537.411.56.9
May24° / 15°576.610.97.6
Jun23° / 13°47510.67.9
Jul23° / 13°424.810.78.1
Aug25° / 13°354.411.28.1
Sep26° / 15°758.311.96.9
Oct27° / 17°9911.812.66.1
Nov28° / 18°12514.113.15.6
Dec29° / 19°16217.813.44.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23565
33466
43367
53268
63367
73367
83367
93367
103367
113466
123367
133466
143466
153565
163664
173763
183763
193763
203862
213862
223862
233862
243862
253763
263664
273565
283367
293268
303268
313169

Chance of precipitation in December

Any precipitation

Sorocaba gets around 162 mm of rain over 17.8 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 58% and peaks near 63% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
150
251
352
452
553
654
754
855
956
1056
1157
1257
1358
1459
1559
1659
1760
1860
1960
2060
2160
2260
2360
2461
2561
2661
2761
2862
2962
3063
3163

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 59% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
121738413
221638423
311537433
411436453
511435463
611434483
711333493
811332513
911332513
1011231533
1111230543
1211230543
1311130553
1411129563
1511129563
1611129563
1701029574
1801029574
1901029574
200929575
210929575
220829576
230829576
240728587
250728578
260628588
270627589
2806265810
2905265910
3005255911
3105246011

Wind in December

Winds average 10 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 18 min at the start of December to 13 h 24 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 6:19 AM to 6:30 AM, and sunset from 7:40 PM to 7:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:197:40
213.46:197:41
313.46:197:41
413.46:207:42
513.46:207:43
613.46:207:43
713.46:207:44
813.46:207:44
913.46:217:45
1013.46:217:46
1113.46:217:46
1213.46:217:47
1313.46:227:47
1413.46:227:48
1513.46:227:49
1613.46:237:49
1713.46:237:50
1813.46:247:50
1913.46:247:51
2013.46:247:51
2113.46:257:52
2213.46:257:52
2313.46:267:53
2413.46:267:53
2513.46:277:54
2613.46:277:54
2713.46:287:54
2813.46:287:55
2913.46:297:55
3013.46:307:56
3113.46:307:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.88 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.42 kWh/m² to a high of 5.88 kWh/m² in December across the year — December's 5.88 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.7Bright
Planning a trip in December

Hazard calendar for Sorocaba

In seasonPeak

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

Sorocaba'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 Sorocaba?

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

4.6
Sightseeing
10th-best month of the year
5.6
Beach & pool
10th-best month of the year

December is a reasonable time to visit Sorocaba for sightseeing.

What to pack for Sorocaba in December

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

In December, Sorocaba sees daytime highs around 29°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Sorocaba 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 Sorocaba peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 22UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Sorocaba 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 Sorocaba is worst in July — around 38 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (January, 18 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1838 µg/m³Jan 1018 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb20Moderate
Mar22Moderate
Apr26Moderate
May31Moderate
Jun35Poor
Jul38Poor
Aug36Poor
Sep35Poor
Oct25Moderate
Nov18Moderate
Dec18Moderate
Location & terrain

Where is Sorocaba?

Sorocaba sits at 23.5°S, 47.5°W, 602 m above sea level, in Brazil. The nearest listed city is Votorantim, 5.0 km away.

Topography around Sorocaba

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

Within 3 km, the terrain around Sorocaba has only modest variations in elevation — a maximum elevation change of 102 m around an average of 588 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 517 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,271 m.

The land around Sorocaba is covered by artificial surfaces (83%) within 3 km, trees (43%) and grassland (23%) within 16 km, and trees (51%), grassland (21%) and cropland (20%) within 80 km.

3 km
102 m
16 km
517 m
80 km
1,271 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Votorantim 5.0 km · Araçoiaba da Serra 16 km · Salto de Pirapora 20 km · Alumínio 20 km · Piedade 24 km · Capela do Alto 28 km · Mairinque 28 km · Iperó 29 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 Sorocaba (-23.5017°, -47.4581°, elevation 602 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).