Barra de Santo Antônio weather in December

In December, Barra de Santo Antônio sees average daytime highs of 27°C and overnight lows near 25°C, with 35 mm of rain across 12.6 wet days and about 12.5 hours of daylight. It is the 5th-warmest and 12th-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 56% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of December to 12 h 30 min by month's end. Set against the rest of the year, December is Barra de Santo Antônio's 5th-clearest and 3rd-windiest month. For the whole year in context, see Barra de Santo Antônio's year-round climate.

Daytime high
27°
5th warmest
Overnight low
25°
9th coldest
Rainfall
35 mm
12.6 wet days
Daylight
12 h 30 min
5:02 AM – 5:35 PM
Cloud cover
43%
5th clearest
Wind
20 km/h
3rd windiest
Solar energy
6.45 kWh/m²
Travel score
6.4
out of 10

Barra de Santo Antônio is human 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 Barra de Santo Antônio reaches about 27°C in the afternoon and slips back to 25°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 27°C. Set against its neighbours, December runs on par with November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12725
22725
32725
42725
52725
62725
72725
82725
92725
102725
112725
122725
132725
142725
152725
162725
172725
182725
192725
202725
212725
222725
232725
242725
252725
262725
272725
282725
292725
302725
312725

Barra de Santo Antônio weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°6517.212.55.7
Feb27° / 26°6816.212.35.5
Mar27° / 26°9019.712.15.3
Apr27° / 26°12821.411.84.9
May27° / 25°17724.111.64.7
Jun26° / 24°18624.411.54.7
Jul25° / 24°1702511.54.8
Aug25° / 24°10222.411.75.3
Sep25° / 24°6518.311.95.9
Oct26° / 25°5116.512.26.2
Nov26° / 25°371312.46.4
Dec27° / 25°3512.612.56.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% 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 29%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27228
37327
47228
57327
67327
77426
87327
97426
107426
117327
127426
137327
147327
157228
167228
177228
187228
197129
207030
216931
226931
236832
246832
256832
266733
276733
286733
296832
306832
316733

Chance of precipitation in December

Any precipitation

Barra de Santo Antônio gets around 35 mm of rain over 12.6 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 41% and peaks near 45% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
138
237
337
436
536
636
736
837
937
1038
1138
1239
1340
1440
1541
1642
1743
1843
1944
2044
2144
2245
2345
2445
2545
2644
2744
2844
2944
3044
3145

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 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
19910
29910
39910
49910
58920
68920
78920
88920
97930
107930
117930
127930
137930
147930
157930
167930
177930
187930
197930
208920
218920
228920
238920
248920
258920
269910
278920
288920
298920
308920
318911

Wind in December

Winds average 20 km/h in December.

Across December, daily wind ranges from about 19 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1121breezy
1221breezy
1320breezy
1420breezy
1520breezy
1620breezy
1720breezy
1820light breeze
1920light breeze
2020light breeze
2120light breeze
2220light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3119light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 30 min at the start of December to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 4:56 AM to 5:09 AM, and sunset from 5:27 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.54:565:27
212.54:575:28
312.54:575:28
412.54:575:29
512.54:585:29
612.54:585:30
712.54:585:30
812.54:595:31
912.54:595:31
1012.54:595:32
1112.55:005:32
1212.55:005:33
1312.55:015:33
1412.55:015:34
1512.55:015:34
1612.55:025:35
1712.55:025:35
1812.55:035:36
1912.55:035:36
2012.55:045:37
2112.55:045:37
2212.55:055:37
2312.55:055:38
2412.55:055:38
2512.55:065:39
2612.55:065:39
2712.55:075:40
2812.55:075:40
2912.55:085:41
3012.55:085:41
3112.55:095:41

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.45 kWh/m².

For context, solar energy here swings from a low near 4.26 kWh/m² to a high of 6.5 kWh/m² in November across the year — December's 6.45 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.5Intense
106.5Intense
116.5Intense
126.5Intense
136.5Intense
146.5Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
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 Barra de Santo Antônio

In seasonPeak

None of Barra de Santo Antônio's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Barra de Santo Antônio's rainy season runs March–August, 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 Barra de Santo Antônio?

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

6.4
Sightseeing
1st-best month of the year
6.4
Beach & pool
1st-best month of the year

December is a reasonable time to visit Barra de Santo Antônio for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Barra de Santo Antônio in December

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

In December, Barra de Santo Antônio sees daytime highs around 27°C and nights near 25°C. Pack sun protection. Worth having: light clothes, rain gear and a windbreaker. About 13 days see rain.

sun protectionlight clothesrain geara windbreaker

Sea temperature near Barra de Santo Antônio in December

The nearest coast averages about 27°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 15 km away) is warmest in April at about 29°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov27Warm
Dec27Warm

UV index in Barra de Santo Antônio 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 Barra de Santo Antônio peaks around March 11 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 11UV 14Jun 22UV 9
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug9Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Barra de Santo Antônio?

Barra de Santo Antônio sits at 9.4°S, 35.5°W, 29 m above sea level, in Brazil. The nearest listed city is São Luís do Quitunde, 11 km away.

Topography around Barra de Santo Antônio

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Barra de Santo Antônio.

Within 3 km, the terrain around Barra de Santo Antônio has only modest variations in elevation — a maximum elevation change of 60 m around an average of 15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 117 m; within 80 km, large variations in elevation — a maximum elevation change of 748 m.

The land around Barra de Santo Antônio is covered by water (36%) and grassland (20%) within 3 km, water (47%) and trees (24%) within 16 km, and grassland (40%) and water (36%) within 80 km.

3 km
60 m
16 km
117 m
80 km
748 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
December weather nearby: São Luís do Quitunde 11 km · Matriz de Camaragibe 28 km · Messias 37 km · Maceió 38 km · Rio Largo 39 km · Satuba 39 km · Joaquim Gomes 40 km · Porto Calvo 42 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 Barra de Santo Antônio (-9.4047°, -35.5072°, elevation 29 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).