Balneário Gaivota weather in December

In December, Balneário Gaivota sees average daytime highs of 23°C and overnight lows near 21°C, with 91 mm of rain across 10.9 wet days and about 13.8 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 24°C by the end. The sky is clear or mostly clear about 37% of the time in December, and the air most often feels muggy.

Daylight stretches from about 13 h 42 min at the start of December to 13 h 48 min by month's end. Set against the rest of the year, December is Balneário Gaivota's 8th-clearest and 5th-windiest month. For the whole year in context, see Balneário Gaivota's year-round climate.

Daytime high
23°
4th warmest
Overnight low
21°
9th coldest
Rainfall
91 mm
10.9 wet days
Daylight
13 h 54 min
6:19 AM – 8:10 PM
Cloud cover
55%
8th clearest
Wind
18 km/h
5th windiest
Solar energy
6.62 kWh/m²
Travel score
6.8
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 24°C by the end.

A typical December day in Balneário Gaivota reaches about 23°C in the afternoon and slips back to 21°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 25°C. Set against its neighbours, December runs about 2°C warmer than November and about 1°C cooler than January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12220
22220
32220
42321
52321
62321
72321
82321
92321
102321
112321
122321
132321
142321
152321
162321
172321
182422
192422
202422
212422
222422
232422
242422
252422
262422
272422
282422
292422
302422
312422

Balneário Gaivota weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 23°11513.613.76.4
Feb25° / 23°9111.9136.4
Mar24° / 22°9613.312.26.6
Apr23° / 21°901111.36.8
May20° / 18°12210.210.66.5
Jun18° / 16°999.510.26.1
Jul17° / 14°12210.110.35.6
Aug17° / 15°1099.9115.9
Sep18° / 16°13311.511.85.8
Oct20° / 18°14113.812.75.7
Nov22° / 20°10211.213.56.4
Dec23° / 21°9110.913.86.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% 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 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55545
65545
75545
85545
95545
105545
115545
125545
135446
145347
155347
165347
175347
185248
195248
205248
215248
225149
235149
245149
255149
265050
275050
285050
295050
305149
315149

Chance of precipitation in December

Any precipitation

Balneário Gaivota gets around 91 mm of rain over 10.9 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 36% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
436
536
636
736
836
936
1036
1137
1237
1337
1437
1536
1636
1736
1836
1935
2035
2135
2235
2335
2435
2535
2635
2736
2836
2936
3037
3137

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 69% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1412304780
2311294790
33112947100
43112847110
53102747120
63102747130
73102646140
8392646160
9392546170
10392545190
11382445200
12382344220
13382343230
14382243250
15382142270
16382041290
17381940310
18281839330
19281838340
20281737360
21281636380
22281635391
23271534411
24271534421
25171433431
26171433441
27161333442
28161332452
29161332452
30151332463
31151332463

Wind in December

Winds average 18 km/h in December.

Across December, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 42 min at the start of December to 13 h 48 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 6:16 AM to 6:26 AM, and sunset from 8:00 PM to 8:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.76:168:00
213.76:168:01
313.86:168:01
413.86:168:02
513.86:168:03
613.86:168:04
713.86:178:04
813.86:178:05
913.86:178:06
1013.86:178:06
1113.86:178:07
1213.86:188:08
1313.86:188:08
1413.86:188:09
1513.96:188:10
1613.96:198:10
1713.96:198:11
1813.96:208:11
1913.96:208:12
2013.96:208:12
2113.96:218:13
2213.96:218:13
2313.96:228:14
2413.96:228:14
2513.96:238:15
2613.96:238:15
2713.96:248:15
2813.96:248:16
2913.96:258:16
3013.86:268:16
3113.86:268:17

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.62 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 6.62 kWh/m² in December across the year — December's 6.62 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.6Intense
176.6Intense
186.6Intense
196.6Intense
206.6Intense
216.6Intense
226.6Intense
236.6Intense
246.6Intense
256.6Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in December

Is December a good time to visit Balneário Gaivota?

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

6.8
Sightseeing
1st-best month of the year
5.4
Beach & pool
4th-best month of the year

December is a reasonable time to visit Balneário Gaivota for sightseeing.

What to pack for Balneário Gaivota in December

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

In December, Balneário Gaivota sees daytime highs around 23°C and nights near 21°C. Pack sun protection. Worth having: light clothes and rain gear. About 11 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Balneário Gaivota in December

The nearest coast averages about 23°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 20 km away) is warmest in February at about 25°C and coldest in August near 17°C.

It's comfortable for a long swim from Nov 1 to May 27 — about 6.8 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb25Warm
Mar25Warm
Apr23Refreshing
May21Refreshing
Jun19Cool
Jul17Cool
Aug17Cool
Sep18Cool
Oct19Cool
Nov21Refreshing
Dec23Refreshing

UV index in Balneário Gaivota in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Balneário Gaivota peaks around January 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 18UV 13Jun 22UV 4
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar10Extreme
Apr8Very high
May5Moderate
Jun4Moderate
Jul4Moderate
Aug5High
Sep8Very high
Oct9Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Balneário Gaivota?

Balneário Gaivota sits at 29.2°S, 49.6°W, 6 m above sea level, in Brazil. The nearest listed city is Sombrio, 6.0 km away.

Topography around Balneário Gaivota

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

Within 3 km, the terrain around Balneário Gaivota has only modest variations in elevation — a maximum elevation change of 19 m around an average of 5 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 291 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,483 m.

The land around Balneário Gaivota is covered by water (40%) and grassland (28%) within 3 km, water (53%) within 16 km, and trees (34%), water (33%) and grassland (22%) within 80 km.

3 km
19 m
16 km
291 m
80 km
1,483 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Sombrio 6.0 km · Torres 24 km · Balneário Arroio do Silva 25 km · Araranguá 26 km · Forquilhinha 47 km · Balneário Rincão 49 km · Içara 56 km · Criciúma 57 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 Balneário Gaivota (-29.1567°, -49.5794°, elevation 6 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).