Caçapava weather in December

In December, Caçapava sees average daytime highs of 27°C and overnight lows near 18°C, with 227 mm of rain across 21.9 wet days and about 13.4 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 15% 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 Caçapava's 11th-clearest and 6th-windiest month. For the whole year in context, see Caçapava's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
18°
10th coldest
Rainfall
227 mm
21.9 wet days
Daylight
13 h 24 min
6:17 AM – 7:41 PM
Cloud cover
72%
11th clearest
Wind
6 km/h
6th windiest
Solar energy
5.54 kWh/m²
Travel score
4.6
out of 10

Caçapava 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 27°C through the month.

A typical December day in Caçapava reaches about 27°C in the afternoon and slips back to 18°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 31°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)
12718
22718
32718
42718
52718
62718
72718
82718
92718
102718
112718
122718
132718
142718
152718
162718
172719
182719
192719
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719
312719

Caçapava 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
Jan28° / 19°29523.713.34.3
Feb28° / 19°22719.512.84.6
Mar27° / 18°19019.912.25.0
Apr26° / 16°741111.56.6
May23° / 14°608.110.97.3
Jun23° / 12°375.610.67.8
Jul23° / 12°435.310.77.8
Aug24° / 12°375.611.28.0
Sep25° / 15°8910.311.96.8
Oct26° / 16°13715.812.55.7
Nov26° / 17°18918.213.15.2
Dec27° / 18°22721.913.44.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
22971
32971
42971
52872
62773
72773
82773
92773
102872
112872
122872
132872
142872
152971
162971
173070
183070
193169
203268
213268
223268
233268
243169
253169
262971
272971
282971
292773
302773
312773

Chance of precipitation in December

Any precipitation

Caçapava gets around 227 mm of rain over 21.9 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 71% and peaks near 76% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
164
264
365
465
566
666
767
867
968
1068
1169
1270
1370
1471
1572
1673
1773
1873
1974
2074
2174
2274
2375
2475
2575
2676
2776
2876
2976
3076
3176

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 57% of days. Sticky, muggy-or-worse air turns up on roughly 57% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
111347400
201246410
301245430
401144450
501042470
601041490
70940510
80939520
90838540
100837550
110736570
120735580
130735580
140634600
150634600
160634600
170534610
180534610
190534610
200534610
210434620
220434620
230434620
240334630
250333640
260333640
270333640
280232651
290232651
300232651
310231661

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 5 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
265calm
275calm
285calm
295calm
305calm
315calm

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 6:13 AM to 6:24 AM, and sunset from 7:32 PM to 7:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:137:32
213.36:137:33
313.36:137:33
413.36:137:34
513.46:147:35
613.46:147:35
713.46:147:36
813.46:147:37
913.46:147:37
1013.46:157:38
1113.46:157:38
1213.46:157:39
1313.46:167:40
1413.46:167:40
1513.46:167:41
1613.46:177:41
1713.46:177:42
1813.46:177:42
1913.46:187:43
2013.46:187:43
2113.46:197:44
2213.46:197:44
2313.46:207:45
2413.46:207:45
2513.46:217:46
2613.46:217:46
2713.46:227:47
2813.46:227:47
2913.46:237:47
3013.46:237:48
3113.46:247:48

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.54 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.5 kWh/m² to a high of 5.54 kWh/m² in December across the year — December's 5.54 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
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 Caçapava

In seasonPeak

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

Caçapava'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 Caçapava?

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
4.7
Beach & pool
11th-best month of the year

December is a reasonable time to visit Caçapava for sightseeing.

What to pack for Caçapava in December

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

In December, Caçapava sees daytime highs around 27°C and nights near 18°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Caçapava 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 Caçapava peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 24UV 15Jul 11UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Caçapava 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 Caçapava is worst in June — around 32 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2132 µg/m³Nov 2316 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb17Moderate
Mar19Moderate
Apr21Moderate
May27Moderate
Jun32Moderate
Jul31Moderate
Aug28Moderate
Sep28Moderate
Oct20Moderate
Nov16Moderate
Dec16Moderate
Location & terrain

Where is Caçapava?

Caçapava sits at 23.1°S, 45.7°W, 564 m above sea level, in Brazil. The nearest listed city is Taubaté, 18 km away.

Topography around Caçapava

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

Within 3 km, the terrain around Caçapava has only modest variations in elevation — a maximum elevation change of 112 m around an average of 560 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 608 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,040 m.

The land around Caçapava is covered by artificial surfaces (32%) and grassland (29%) within 3 km, grassland (44%) and trees (37%) within 16 km, and trees (53%) and grassland (36%) within 80 km.

3 km
112 m
16 km
608 m
80 km
2,040 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Taubaté 18 km · São José dos Campos 20 km · Tremembé 23 km · Pindamonhangaba 32 km · Paraibuna 32 km · Jacareí 35 km · Campos do Jordão 42 km · Guararema 48 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 Caçapava (-23.1008°, -45.7069°, elevation 564 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).