Souzas weather in December

In December, Souzas sees average daytime highs of 28°C and overnight lows near 19°C, with 204 mm of rain across 20.2 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 28°C through the month. The sky is clear or mostly clear about 17% 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 Souzas's 11th-clearest and 5th-windiest month. For the whole year in context, see Souzas's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
19°
10th coldest
Rainfall
204 mm
20.2 wet days
Daylight
13 h 24 min
6:22 AM – 7:46 PM
Cloud cover
69%
11th clearest
Wind
10 km/h
5th windiest
Solar energy
5.89 kWh/m²
Travel score
4.5
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical December day in Souzas reaches about 28°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 31°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12819
22819
32819
42819
52819
62819
72819
82819
92819
102819
112819
122819
132819
142819
152819
162819
172819
182819
192819
202819
212819
222819
232819
242819
252820
262820
272820
282820
292820
302820
312820

Souzas 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
Jan28° / 20°25922.413.24.1
Feb29° / 20°17518.912.84.2
Mar28° / 19°13817.412.25.1
Apr27° / 17°688.711.56.8
May24° / 15°66710.97.5
Jun24° / 13°484.910.68.1
Jul24° / 13°444.310.78.3
Aug25° / 14°364.211.28.1
Sep27° / 16°848.611.96.9
Oct28° / 17°12513.412.55.9
Nov28° / 18°16115.913.15.4
Dec28° / 19°20420.213.44.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 65%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23862
33763
43664
53664
63565
73466
83565
93565
103466
113565
123565
133466
143466
153664
163664
173664
183763
193763
203763
213763
223763
233763
243664
253565
263565
273367
283367
293268
303268
313070

Chance of precipitation in December

Any precipitation

Souzas gets around 204 mm of rain over 20.2 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 65% and peaks near 69% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
157
258
359
460
561
661
762
863
964
1064
1165
1265
1366
1466
1567
1667
1767
1867
1968
2068
2168
2268
2368
2468
2568
2668
2768
2868
2969
3069
3169

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 60% 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
211337482
311236492
411235502
511134522
611133532
711132542
811031562
911030572
101930582
111929592
121929592
131829602
141829602
151829602
160729622
170729622
180629632
190629632
200629632
210529633
220528643
230428653
240428644
250427654
260327664
270326665
280325675
290325675
300224686
310224686

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
811calm
911calm
1011calm
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 6:18 AM to 6:29 AM, and sunset from 7:37 PM to 7:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:187:37
213.36:197:37
313.36:197:38
413.36:197:39
513.36:197:39
613.36:197:40
713.46:197:41
813.46:207:41
913.46:207:42
1013.46:207:42
1113.46:207:43
1213.46:217:44
1313.46:217:44
1413.46:217:45
1513.46:227:45
1613.46:227:46
1713.46:227:46
1813.46:237:47
1913.46:237:48
2013.46:247:48
2113.46:247:49
2213.46:257:49
2313.46:257:49
2413.46:267:50
2513.46:267:50
2613.46:277:51
2713.46:277:51
2813.46:287:52
2913.46:287:52
3013.46:297:52
3113.46:297:53

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.89 kWh/m².

For context, solar energy here swings from a low near 3.61 kWh/m² to a high of 5.94 kWh/m² in November across the year — December's 5.89 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
26.0Bright
36.0Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
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
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.7Bright
315.7Bright
Planning a trip in December

Hazard calendar for Souzas

In seasonPeak

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

Souzas'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 Souzas?

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

4.5
Sightseeing
10th-best month of the year
5.2
Beach & pool
11th-best month of the year

December is a reasonable time to visit Souzas for sightseeing.

What to pack for Souzas in December

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

In December, Souzas sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

UV index in Souzas 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 Souzas peaks around January 20 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 20UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov14Extreme
Dec14Extreme

Air quality in Souzas 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 Souzas 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 Souzas?

Souzas sits at 22.9°S, 47.0°W, 649 m above sea level, in Brazil. The nearest listed city is Campinas, 10 km away.

Topography around Souzas

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

Within 3 km, the terrain around Souzas has only modest variations in elevation — a maximum elevation change of 178 m around an average of 697 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 518 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,220 m.

The land around Souzas is covered by trees (49%) and grassland (30%) within 3 km, trees (38%) and grassland (32%) within 16 km, and trees (40%), grassland (27%) and cropland (23%) within 80 km.

3 km
178 m
16 km
518 m
80 km
1,220 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Campinas 10 km · Valinhos 11 km · Vinhedo 17 km · Itatiba 19 km · Jaguariúna 19 km · Louveira 23 km · Paulínia 23 km · Hortolândia 26 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 Souzas (-22.8792°, -46.9644°, elevation 649 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).