Pilar do Sul weather in December

In December, Pilar do Sul sees average daytime highs of 27°C and overnight lows near 19°C, with 173 mm of rain across 18.7 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 16% 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 Pilar do Sul's 11th-clearest and 5th-windiest month. For the whole year in context, see Pilar do Sul's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
19°
9th coldest
Rainfall
173 mm
18.7 wet days
Daylight
13 h 30 min
6:23 AM – 7:51 PM
Cloud cover
72%
11th clearest
Wind
11 km/h
5th windiest
Solar energy
5.61 kWh/m²
Travel score
5.0
out of 10

Pilar do Sul 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 Pilar do Sul reaches about 27°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 23°C and 31°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)
12718
22718
32718
42718
52718
62718
72718
82718
92718
102718
112718
122718
132718
142718
152719
162719
172719
182719
192719
202819
212819
222819
232819
242819
252819
262819
272819
282819
292819
302819
312819

Pilar do Sul 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°24522.613.34.5
Feb28° / 19°17419.312.84.6
Mar27° / 19°12718.412.25.2
Apr26° / 17°608.711.56.9
May23° / 14°637.110.97.3
Jun22° / 13°585.810.67.4
Jul22° / 12°555.310.77.6
Aug23° / 13°414.911.27.9
Sep24° / 14°959.111.97.1
Oct26° / 16°11112.612.66.2
Nov26° / 17°14114.813.25.7
Dec27° / 19°17318.713.45.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% 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 71%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23070
33070
43070
52872
62773
72872
82872
92872
102773
112773
122773
132773
142773
152872
162872
172971
183070
193070
203070
213070
223070
233070
243070
252971
262872
272872
282773
292773
302674
312773

Chance of precipitation in December

Any precipitation

Pilar do Sul gets around 173 mm of rain over 18.7 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 61% and peaks near 67% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
154
255
356
456
557
657
758
858
958
1059
1159
1260
1360
1461
1561
1662
1762
1862
1963
2063
2163
2263
2364
2464
2564
2665
2765
2866
2966
3066
3167

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 58% of days. Sticky, muggy-or-worse air turns up on roughly 63% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
111437462
211437472
301336482
401335492
501235512
601234522
701233532
801132552
901131562
1001130572
1101130572
1201029592
1301029592
1401028593
150928603
160928603
170927613
180827614
190827614
200727615
210726625
220626626
230626626
240525637
250525637
260424648
270424648
280423649
290323659
3003226510
3103226510

Wind in December

Winds average 11 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
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 6:20 AM to 6:30 AM, and sunset from 7:42 PM to 7:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:207:42
213.46:207:42
313.46:207:43
413.46:207:44
513.46:207:44
613.46:207:45
713.46:217:45
813.46:217:46
913.46:217:47
1013.46:217:47
1113.46:227:48
1213.46:227:49
1313.56:227:49
1413.56:227:50
1513.56:237:50
1613.56:237:51
1713.56:247:51
1813.56:247:52
1913.56:247:52
2013.56:257:53
2113.56:257:53
2213.56:267:54
2313.56:267:54
2413.56:277:55
2513.56:277:55
2613.56:287:56
2713.56:287:56
2813.56:297:57
2913.56:297:57
3013.56:307:57
3113.56:307:58

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.61 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.18 kWh/m² to a high of 5.61 kWh/m² in December across the year — December's 5.61 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.7Bright
225.7Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in December

Hazard calendar for Pilar do Sul

In seasonPeak

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

Pilar do Sul'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 Pilar do Sul?

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

5.0
Sightseeing
10th-best month of the year
5.2
Beach & pool
9th-best month of the year

December is a reasonable time to visit Pilar do Sul for sightseeing.

What to pack for Pilar do Sul in December

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

In December, Pilar do Sul sees daytime highs around 27°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Pilar do Sul in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Pilar do Sul peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 21UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar11Extreme
Apr8Very high
May7High
Jun6High
Jul5High
Aug7Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Pilar do Sul 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 Pilar do Sul is worst in September — around 18 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (January, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1017 µg/m³Jan 1410 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr11Good
May14Moderate
Jun15Moderate
Jul16Moderate
Aug17Moderate
Sep18Moderate
Oct13Moderate
Nov10Good
Dec10Good
Location & terrain

Where is Pilar do Sul?

Pilar do Sul sits at 23.8°S, 47.7°W, 697 m above sea level, in Brazil. The nearest listed city is Salto de Pirapora, 23 km away.

Topography around Pilar do Sul

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

Within 3 km, the terrain around Pilar do Sul has only modest variations in elevation — a maximum elevation change of 122 m around an average of 696 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 473 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,386 m.

The land around Pilar do Sul is covered by grassland (34%), cropland (27%) and trees (25%) within 3 km, trees (57%) and grassland (25%) within 16 km, and trees (66%) within 80 km.

3 km
122 m
16 km
473 m
80 km
1,386 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Salto de Pirapora 23 km · São Miguel Arcanjo 29 km · Piedade 31 km · Araçoiaba da Serra 36 km · Capela do Alto 38 km · Votorantim 41 km · Itapetininga 42 km · Sorocaba 43 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 Pilar do Sul (-23.8131°, -47.7164°, elevation 697 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).