São João Batista weather in December

In December, São João Batista sees average daytime highs of 28°C and overnight lows near 20°C, with 157 mm of rain across 17.9 wet days and about 13.7 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 29°C by the end. 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 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 São João Batista's 10th-clearest and 3rd-windiest month. For the whole year in context, see São João Batista's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
20°
9th coldest
Rainfall
157 mm
17.9 wet days
Daylight
13 h 42 min
6:20 AM – 8:03 PM
Cloud cover
75%
10th clearest
Wind
8 km/h
3rd windiest
Solar energy
5.59 kWh/m²
Travel score
4.8
out of 10

São João Batista 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

Highs climb over the month, from about 27°C in the first days to 29°C by the end.

A typical December day in São João Batista reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 32°C. Set against its neighbours, December runs about 2°C warmer than November and about 1°C cooler than January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12719
22719
32719
42719
52719
62719
72719
82719
92719
102719
112720
122820
132820
142820
152820
162820
172820
182820
192820
202820
212820
222820
232820
242820
252820
262921
272921
282921
292921
302921
312921

São João Batista 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
Jan29° / 21°21521.713.54.0
Feb29° / 21°19619.2134.1
Mar28° / 20°14118.812.24.9
Apr26° / 18°8811.511.46.4
May23° / 15°10810.510.76.7
Jun21° / 13°989.210.36.6
Jul21° / 12°909.410.56.5
Aug22° / 13°919.5116.6
Sep22° / 15°14712.911.86.0
Oct24° / 17°13615.212.75.7
Nov26° / 18°13716.213.35.5
Dec28° / 20°15717.913.74.8

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 (%)
12773
22872
32872
42773
52674
62674
72674
82773
92773
102773
112773
122773
132674
142575
152575
162575
172476
182476
192476
202476
212476
222476
232476
242377
252476
262476
272476
282476
292476
302476
312377

Chance of precipitation in December

Any precipitation

São João Batista gets around 157 mm of rain over 17.9 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 59% and peaks near 66% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
155
255
355
455
554
655
755
855
955
1055
1156
1256
1356
1457
1557
1658
1759
1859
1960
2060
2161
2261
2361
2462
2562
2663
2764
2864
2965
3065
3166

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 40% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12133042130
22123042130
32123042140
42113042150
52103042150
62103042160
7293042180
8192942190
9182942200
10182842210
11182742230
12172642240
13172542250
14172441270
15172341280
16172141300
17172040320
18071940331
19071939341
20061839361
21061738371
22061738381
23061638391
24051637401
25051537412
26051537422
27051536422
28041536432
29041436442
30041436442
31041436452

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 6:17 AM to 6:28 AM, and sunset from 7:53 PM to 8:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.66:177:53
213.66:177:54
313.66:177:55
413.66:177:55
513.66:187:56
613.66:187:57
713.76:187:57
813.76:187:58
913.76:187:59
1013.76:187:59
1113.76:198:00
1213.76:198:01
1313.76:198:01
1413.76:208:02
1513.76:208:02
1613.76:208:03
1713.76:218:03
1813.76:218:04
1913.76:218:05
2013.76:228:05
2113.76:228:06
2213.76:238:06
2313.76:238:07
2413.76:248:07
2513.76:248:07
2613.76:258:08
2713.76:258:08
2813.76:268:09
2913.76:268:09
3013.76:278:09
3113.76:288:10

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.59 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.58 kWh/m² to a high of 5.59 kWh/m² in December across the year — December's 5.59 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
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
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in December

Is December a good time to visit São João Batista?

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

4.8
Sightseeing
10th-best month of the year
5.3
Beach & pool
3rd-best month of the year

December is a reasonable time to visit São João Batista for sightseeing.

What to pack for São João Batista in December

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

In December, São João Batista sees daytime highs around 28°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

Sea temperature near São João Batista in December

The nearest coast averages about 24°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 48 km away) is warmest in February at about 26°C and coldest in August near 18°C.

It's comfortable for a long swim from Oct 6 to Jun 10 — about 8.2 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar25Warm
Apr24Warm
May22Refreshing
Jun20Cool
Jul18Cool
Aug18Cool
Sep19Cool
Oct21Refreshing
Nov23Refreshing
Dec24Warm

UV index in São João Batista 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 São João Batista peaks around January 19 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 19UV 14Jul 11UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5Moderate
Aug6High
Sep8Very high
Oct9Very high
Nov12Extreme
Dec13Extreme
Location & terrain

Where is São João Batista?

São João Batista sits at 27.3°S, 48.8°W, 32 m above sea level, in Brazil. The nearest listed city is Brusque, 21 km away.

Topography around São João Batista

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

Within 3 km, the terrain around São João Batista has only modest variations in elevation — a maximum elevation change of 201 m around an average of 47 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 981 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,750 m.

The land around São João Batista is covered by trees (51%) and grassland (29%) within 3 km, trees (82%) within 16 km, and trees (58%) and water (28%) within 80 km.

3 km
201 m
16 km
981 m
80 km
1,750 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Brusque 21 km · Tijucas 22 km · Guabiruba 24 km · Governador Celso Ramos 29 km · Biguaçu 31 km · Itapema 31 km · Porto Belo 32 km · Camboriú 34 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 São João Batista (-27.2761°, -48.8494°, elevation 32 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).