Joaçaba weather in December

In December, Joaçaba sees average daytime highs of 27°C and overnight lows near 17°C, with 170 mm of rain across 16.1 wet days and about 13.7 hours of daylight. It is the 3rd-warmest and 4th-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 31% of the time in December, and the air most often feels humid.

Daylight stretches from about 13 h 36 min at the start of December to 13 h 42 min by month's end. Set against the rest of the year, December is Joaçaba's 9th-clearest and 6th-windiest month. For the whole year in context, see Joaçaba's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
17°
10th coldest
Rainfall
170 mm
16.1 wet days
Daylight
13 h 42 min
6:31 AM – 8:13 PM
Cloud cover
60%
9th clearest
Wind
10 km/h
6th windiest
Solar energy
6.36 kWh/m²
Travel score
5.6
out of 10

Joaçaba is 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 Joaçaba reaches about 27°C in the afternoon and slips back to 17°C overnight — a 10°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 about 1°C warmer than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12716
22716
32716
42717
52717
62717
72717
82717
92717
102717
112717
122717
132717
142717
152717
162717
172717
182717
192717
202717
212717
222817
232818
242818
252818
262818
272818
282818
292818
302818
312818

Joaçaba weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 18°17818.113.55.2
Feb27° / 18°16917.1135.2
Mar27° / 17°12814.412.26.0
Apr24° / 14°10410.611.46.8
May20° / 11°13910.410.76.3
Jun19° / 10°13310.110.36.1
Jul19° / 11810.110.56.3
Aug21° / 10°1029.5116.9
Sep23° / 12°17212.111.86.5
Oct24° / 14°20115.412.76.0
Nov26° / 15°15113.413.36.1
Dec27° / 17°17016.113.75.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34852
44753
54852
64753
74852
84852
94852
104852
114852
124951
134951
144951
155050
164951
175050
185050
195050
205050
214951
224951
234951
244753
254753
264654
274654
284456
294456
304555
314456

Chance of precipitation in December

Any precipitation

Joaçaba gets around 170 mm of rain over 16.1 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 52% and peaks near 57% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
147
247
347
447
548
648
748
849
949
1050
1150
1251
1351
1452
1552
1653
1753
1854
1954
2054
2154
2255
2355
2455
2555
2656
2756
2856
2956
3057
3157

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the humid band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 29% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
115284017
214274118
314274118
413264219
513254319
612254320
712244420
812244421
911234421
1011234422
1111234423
1210234323
1310234324
149234225
159234226
168234128
178234029
188233930
198233832
207233733
217223634
227223536
237213537
246213438
256203439
266203440
275193441
285193442
295183443
305183443
315173444

Wind in December

Winds average 10 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
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 36 min at the start of December to 13 h 42 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 6:28 AM to 6:38 AM, and sunset from 8:03 PM to 8:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.66:288:03
213.66:288:04
313.66:288:05
413.66:288:06
513.66:288:06
613.66:288:07
713.76:298:08
813.76:298:08
913.76:298:09
1013.76:298:10
1113.76:308:10
1213.76:308:11
1313.76:308:12
1413.76:308:12
1513.76:318:13
1613.76:318:13
1713.76:318:14
1813.76:328:14
1913.76:328:15
2013.76:338:15
2113.76:338:16
2213.76:348:16
2313.76:348:17
2413.76:358:17
2513.76:358:18
2613.76:368:18
2713.76:368:19
2813.76:378:19
2913.76:378:19
3013.76:388:20
3113.76:388:20

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.36 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.78 kWh/m² to a high of 6.36 kWh/m² in December across the year — December's 6.36 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.3Intense
126.3Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in December

Is December a good time to visit Joaçaba?

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

5.6
Sightseeing
10th-best month of the year
5.8
Beach & pool
3rd-best month of the year

December is a reasonable time to visit Joaçaba for sightseeing.

What to pack for Joaçaba in December

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

In December, Joaçaba sees daytime highs around 27°C and nights near 17°C. Pack light clothes, rain gear and sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Joaçaba 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 Joaçaba peaks around January 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 22UV 14Jul 11UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5Moderate
Jul5Moderate
Aug6High
Sep8Very high
Oct9Very high
Nov12Extreme
Dec13Extreme

Air quality in Joaçaba 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 Joaçaba is worst in September — around 16 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (March, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1215 µg/m³Mar 126 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar6Good
Apr7Good
May7Good
Jun7Good
Jul8Good
Aug14Moderate
Sep16Moderate
Oct10Good
Nov7Good
Dec6Good
Location & terrain

Where is Joaçaba?

Joaçaba sits at 27.2°S, 51.5°W, 551 m above sea level, in Brazil. The nearest listed city is Herval dOeste, 2.0 km away.

Topography around Joaçaba

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

Within 3 km, the terrain around Joaçaba has significant variations in elevation — a maximum elevation change of 289 m around an average of 628 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 716 m; within 80 km, large variations in elevation — a maximum elevation change of 1,068 m.

The land around Joaçaba is covered by trees (63%) and artificial surfaces (20%) within 3 km, trees (66%) and grassland (20%) within 16 km, and trees (65%) and cropland (20%) within 80 km.

3 km
289 m
16 km
716 m
80 km
1,068 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Herval dOeste 2.0 km · Capinzal 21 km · Campos Novos 37 km · Videira 40 km · Concórdia 52 km · Fraiburgo 60 km · Caçador 66 km · Seara 80 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 Joaçaba (-27.1781°, -51.5047°, elevation 551 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).