Buzios weather in December

In December, Buzios sees average daytime highs of 27°C and overnight lows near 23°C, with 142 mm of rain across 13.2 wet days and about 13.4 hours of daylight. It is the 4th-warmest and 1st-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 26% of the time in December, and the air most often feels oppressive.

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 Buzios's 11th-clearest and 8th-windiest month. For the whole year in context, see Buzios's year-round climate.

Daytime high
27°
4th warmest
Overnight low
23°
9th coldest
Rainfall
142 mm
13.2 wet days
Daylight
13 h 24 min
6:02 AM – 7:25 PM
Cloud cover
65%
11th clearest
Wind
16 km/h
8th windiest
Solar energy
6.37 kWh/m²
Travel score
6.0
out of 10

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 Buzios reaches about 27°C in the afternoon and slips back to 23°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, December runs about 1°C warmer than November and about 1°C cooler than January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12623
22623
32623
42623
52623
62623
72623
82623
92623
102623
112723
122723
132723
142723
152723
162723
172723
182723
192723
202723
212724
222724
232724
242724
252724
262724
272724
282724
292724
302724
312724

Buzios weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°13011.113.26.2
Feb28° / 24°838.412.86.5
Mar28° / 24°12612.912.26.1
Apr27° / 23°649.911.56.8
May25° / 21°579.810.97.2
Jun24° / 20°32610.68.0
Jul24° / 19°336.610.77.9
Aug24° / 20°316.211.28.0
Sep24° / 20°568.411.97.4
Oct25° / 21°759.212.57.0
Nov25° / 22°13913.313.16.1
Dec27° / 23°14213.213.46.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33862
43763
53664
63664
73565
83565
93565
103664
113664
123664
133664
143763
153961
163961
174060
184060
194159
204159
214258
224357
234357
244357
254258
264159
274258
284159
294060
304060
314060

Chance of precipitation in December

Any precipitation

Buzios gets around 142 mm of rain over 13.2 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 43% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
144
245
345
445
545
645
744
844
944
1044
1143
1243
1343
1442
1542
1642
1742
1842
1942
2042
2142
2242
2342
2442
2542
2643
2743
2843
2943
3043
3142

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 71% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11927612
21926622
31826632
41825633
51825633
61724644
71724644
81623664
91523665
101522675
111422685
121421696
130320716
140319726
150218737
160217747
170217747
180216748
190215758
200114769
2101137610
2201127710
2301127611
2401117711
2501107712
2601107613
2701107613
2801107514
2901107514
3001107415
3101107415

Wind in December

Winds average 16 km/h in December.

Across December, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

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 5:58 AM to 6:09 AM, and sunset from 7:16 PM to 7:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:587:16
213.35:597:17
313.35:597:17
413.35:597:18
513.35:597:19
613.35:597:19
713.35:597:20
813.46:007:21
913.46:007:21
1013.46:007:22
1113.46:007:22
1213.46:017:23
1313.46:017:24
1413.46:017:24
1513.46:027:25
1613.46:027:25
1713.46:027:26
1813.46:037:26
1913.46:037:27
2013.46:047:27
2113.46:047:28
2213.46:057:28
2313.46:057:29
2413.46:067:29
2513.46:067:30
2613.46:077:30
2713.46:077:31
2813.46:087:31
2913.46:087:31
3013.46:097:32
3113.46:097:32

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.37 kWh/m².

For context, solar energy here swings from a low near 3.58 kWh/m² to a high of 6.51 kWh/m² in February across the year — December's 6.37 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
316.4Intense
Planning a trip in December

Hazard calendar for Buzios

In seasonPeak

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

Buzios's rainy season runs October–April, 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 Buzios?

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

6.0
Sightseeing
12th-best month of the year
6.0
Beach & pool
11th-best month of the year

December is a reasonable time to visit Buzios for sightseeing.

What to pack for Buzios in December

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

In December, Buzios sees daytime highs around 27°C and nights near 23°C. Pack sun protection. Worth having: light clothes and rain gear. About 13 days see rain.

sun protectionlight clothesrain gear

Sea temperature near Buzios 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 14 km away) is warmest in March at about 25°C and coldest in September near 21°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°22°24°26°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb24Warm
Mar25Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug22Refreshing
Sep21Refreshing
Oct22Refreshing
Nov22Refreshing
Dec24Refreshing

UV index in Buzios 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 Buzios peaks around January 15 at about 14 (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 15UV 14Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep7High
Oct11Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Buzios?

Buzios sits at 22.7°S, 41.9°W, 9 m above sea level, in Brazil. The nearest listed city is Cabo Frio, 22 km away.

Topography around Buzios

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

Within 3 km, the terrain around Buzios has only modest variations in elevation — a maximum elevation change of 112 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 179 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,806 m.

The land around Buzios is covered by water (73%) within 3 km, water (82%) within 16 km, and water (49%), trees (25%) and grassland (23%) within 80 km.

3 km
112 m
16 km
179 m
80 km
1,806 m
treesgrasslandartificial surfaceswaterwetland
December weather nearby: Cabo Frio 22 km · São Pedro da Aldeia 25 km · Rio das Ostras 25 km · Arraial do Cabo 29 km · Iguaba Grande 37 km · Macaé 42 km · Casimiro de Abreu 44 km · Araruama 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 Buzios (-22.7469°, -41.8817°, elevation 9 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).