Jacarezinho weather in December

In December, Jacarezinho sees average daytime highs of 30°C and overnight lows near 20°C, with 167 mm of rain across 17.7 wet days and about 13.4 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 20% 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 Jacarezinho's 11th-clearest and 6th-windiest month. For the whole year in context, see Jacarezinho's year-round climate.

Daytime high
30°
1st warmest
Overnight low
20°
10th coldest
Rainfall
167 mm
17.7 wet days
Daylight
13 h 24 min
6:34 AM – 7:59 PM
Cloud cover
68%
11th clearest
Wind
9 km/h
6th windiest
Solar energy
5.95 kWh/m²
Travel score
4.2
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical December day in Jacarezinho reaches about 30°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 33°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)
13020
23020
33020
43020
53020
63020
73020
83020
93020
103020
113020
123020
133020
143020
153020
163020
173020
183020
193020
203021
213021
223021
233021
243021
253021
263021
273021
283021
293021
303021
313021

Jacarezinho weather by month

How December compares with the rest of the year at a glance. December is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 21°22520.813.33.8
Feb30° / 21°16718.112.84.0
Mar29° / 20°11915.412.24.6
Apr28° / 18°637.411.56.4
May25° / 15°736.910.97.4
Jun24° / 14°645.910.67.9
Jul24° / 13°484.810.78.1
Aug26° / 14°464.811.27.8
Sep28° / 16°948.211.96.8
Oct29° / 18°11611.712.55.4
Nov29° / 19°1351313.14.9
Dec30° / 20°16717.713.44.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23664
33565
43565
53466
63466
73466
83466
93466
103565
113565
123664
133664
143862
153862
163961
173961
184060
194060
204060
214060
223862
233862
243763
253565
263565
273367
283268
293268
303169
313070

Chance of precipitation in December

Any precipitation

Jacarezinho gets around 167 mm of rain over 17.7 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 57% and peaks near 63% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
148
249
349
450
551
652
752
853
954
1054
1155
1256
1357
1458
1558
1659
1759
1860
1960
2060
2160
2261
2361
2461
2561
2662
2762
2862
2962
3062
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 46% of days. Sticky, muggy-or-worse air turns up on roughly 71% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1211274515
2111264615
3111254716
4110254817
5110244817
619244818
719234819
819234819
919224820
1019224820
1109224821
1208224821
1308214822
1408214823
1508214723
1608214724
1708204625
1807204626
1907204527
2007204528
2106204529
2206194530
2306194531
2405194432
2505184433
2604184434
2704184435
2804174336
2903174337
3003174337
3103164338

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 6:30 AM to 6:41 AM, and sunset from 7:49 PM to 8:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:307:49
213.36:307:50
313.36:307:51
413.36:307:51
513.46:307:52
613.46:317:53
713.46:317:53
813.46:317:54
913.46:317:54
1013.46:327:55
1113.46:327:56
1213.46:327:56
1313.46:327:57
1413.46:337:57
1513.46:337:58
1613.46:347:59
1713.46:347:59
1813.46:348:00
1913.46:358:00
2013.46:358:01
2113.46:368:01
2213.46:368:02
2313.46:378:02
2413.46:378:03
2513.46:388:03
2613.46:388:03
2713.46:398:04
2813.46:398:04
2913.46:408:05
3013.46:408:05
3113.46:418:05

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.95 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.33 kWh/m² to a high of 5.95 kWh/m² in December across the year — December's 5.95 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
36.0Bright
46.0Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
146.0Bright
156.0Bright
166.0Bright
176.0Bright
186.0Bright
196.0Intense
206.0Intense
216.0Intense
226.0Bright
236.0Bright
246.0Bright
256.0Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.8Bright
315.8Bright
Planning a trip in December

Hazard calendar for Jacarezinho

In seasonPeak

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

Jacarezinho'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 Jacarezinho?

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

4.2
Sightseeing
10th-best month of the year
5.6
Beach & pool
10th-best month of the year

December is a reasonable time to visit Jacarezinho for sightseeing.

What to pack for Jacarezinho in December

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

In December, Jacarezinho sees daytime highs around 30°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Jacarezinho 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 Jacarezinho peaks around January 22 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 22UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Jacarezinho 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 Jacarezinho is worst in September — around 18 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1517 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar7Good
Apr8Good
May9Good
Jun9Good
Jul10Good
Aug13Moderate
Sep18Moderate
Oct12Good
Nov7Good
Dec7Good
Location & terrain

Where is Jacarezinho?

Jacarezinho sits at 23.2°S, 50.0°W, 448 m above sea level, in Brazil. The nearest listed city is Cambará, 17 km away.

Topography around Jacarezinho

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

Within 3 km, the terrain around Jacarezinho has only modest variations in elevation — a maximum elevation change of 198 m around an average of 494 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 521 m; within 80 km, large variations in elevation — a maximum elevation change of 787 m.

The land around Jacarezinho is covered by grassland (45%), trees (23%) and artificial surfaces (22%) within 3 km, cropland (37%), grassland (36%) and trees (25%) within 16 km, and cropland (50%), grassland (26%) and trees (20%) within 80 km.

3 km
198 m
16 km
521 m
80 km
787 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Cambará 17 km · Santo Antônio da Platina 19 km · Ourinhos 23 km · Andirá 29 km · Carlópolis 39 km · Bandeirantes 41 km · Santa Cruz do Rio Pardo 45 km · Palmital 49 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 Jacarezinho (-23.1606°, -49.9694°, elevation 448 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).