Apiaí weather in December

In December, Apiaí sees average daytime highs of 27°C and overnight lows near 18°C, with 181 mm of rain across 20.6 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 27°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 Apiaí's 9th-clearest and 4th-windiest month. For the whole year in context, see Apiaí's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
18°
9th coldest
Rainfall
181 mm
20.6 wet days
Daylight
13 h 30 min
6:26 AM – 7:57 PM
Cloud cover
76%
9th clearest
Wind
7 km/h
4th windiest
Solar energy
5.44 kWh/m²
Travel score
4.7
out of 10

Apiaí 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 Apiaí 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 32°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)
12717
22717
32717
42718
52718
62718
72718
82718
92718
102718
112718
122718
132718
142718
152718
162718
172718
182718
192818
202818
212819
222819
232819
242819
252819
262819
272819
282819
292819
302819
312819

Apiaí 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°25024.713.34.2
Feb28° / 19°19921.512.94.2
Mar27° / 18°15520.612.24.9
Apr25° / 16°7511.311.46.4
May22° / 13°821010.86.6
Jun21° / 12°80810.56.8
Jul21° / 11°777.510.66.9
Aug22° / 12°577.311.17.2
Sep23° / 13°11411.711.86.4
Oct25° / 15°12616.112.65.6
Nov26° / 17°13217.413.25.3
Dec27° / 18°18120.613.54.7

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 14% of December, with mostly cloudy or overcast conditions the remaining 75%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22377
32377
42377
52278
62278
72377
82377
92377
102476
112575
122575
132575
142575
152674
162773
172773
182773
192773
202872
212872
222872
232872
242674
252674
262674
272575
282476
292476
302377
312377

Chance of precipitation in December

Any precipitation

Apiaí gets around 181 mm of rain over 20.6 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 67% 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 (%)
161
261
362
462
563
663
764
864
964
1065
1165
1266
1366
1467
1567
1667
1768
1868
1968
2068
2169
2269
2369
2470
2571
2671
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 54% of days. Sticky, muggy-or-worse air turns up on roughly 65% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
111533474
211433494
311332504
411331514
511231515
611230525
711129545
801129546
901128556
1001028557
1101027567
1201027558
1301026568
140926569
150925579
1609255610
1709255511
1808255512
1908245513
2007245613
2107245514
2206245515
2306245416
2405235517
2505235418
2604235419
2704225420
2804225321
2903225322
3003215323
3103215323

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 8:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:237:47
213.46:237:48
313.46:237:49
413.46:237:49
513.46:237:50
613.56:237:51
713.56:247:51
813.56:247:52
913.56:247:53
1013.56:247:53
1113.56:257:54
1213.56:257:55
1313.56:257:55
1413.56:257:56
1513.56:267:56
1613.56:267:57
1713.56:277:57
1813.56:277:58
1913.56:277:58
2013.56:287:59
2113.56:287:59
2213.56:298:00
2313.56:298:00
2413.56:308:01
2513.56:308:01
2613.56:318:02
2713.56:318:02
2813.56:328:02
2913.56:328:03
3013.56:338:03
3113.56:348:04

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.44 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.95 kWh/m² to a high of 5.44 kWh/m² in December across the year — December's 5.44 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.3Bright
Planning a trip in December

Hazard calendar for Apiaí

In seasonPeak

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

Apiaí's rainy season runs September–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 Apiaí?

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

4.7
Sightseeing
10th-best month of the year
4.9
Beach & pool
7th-best month of the year

December is a reasonable time to visit Apiaí for sightseeing.

What to pack for Apiaí in December

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

In December, Apiaí sees daytime highs around 27°C and nights near 18°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

UV index in Apiaí 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 Apiaí 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

Air quality in Apiaí 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 Apiaí is worst in September — around 15 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (March, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1215 µg/m³Mar 128 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr9Good
May11Good
Jun11Good
Jul12Good
Aug14Moderate
Sep15Moderate
Oct11Good
Nov9Good
Dec9Good
Location & terrain

Where is Apiaí?

Apiaí sits at 24.5°S, 48.8°W, 925 m above sea level, in Brazil. The nearest listed city is Ribeirão Branco, 33 km away.

Topography around Apiaí

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

Within 3 km, the terrain around Apiaí has significant variations in elevation — a maximum elevation change of 437 m around an average of 941 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,066 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,809 m.

The land around Apiaí is covered by trees (82%) within 3 km, trees (84%) within 16 km, and trees (82%) within 80 km.

3 km
437 m
16 km
1,066 m
80 km
1,809 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Ribeirão Branco 33 km · Guapiara 48 km · Cerro Azul 55 km · Itapeva 59 km · Itararé 66 km · Capão Bonito 75 km · Sengés 77 km · Cajati 77 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 Apiaí (-24.5094°, -48.8425°, elevation 925 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).