Conceição da Barra weather in December

In December, Conceição da Barra sees average daytime highs of 28°C and overnight lows near 24°C, with 139 mm of rain across 14.7 wet days and about 13.1 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 27% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 13 hours at the start of December to 13 h 06 min by month's end. Set against the rest of the year, December is Conceição da Barra's 11th-clearest and 4th-windiest month. For the whole year in context, see Conceição da Barra's year-round climate.

Daytime high
28°
4th warmest
Overnight low
24°
9th coldest
Rainfall
139 mm
14.7 wet days
Daylight
13 h 06 min
6:02 AM – 7:08 PM
Cloud cover
66%
11th clearest
Wind
17 km/h
4th windiest
Solar energy
6.27 kWh/m²
Travel score
5.6
out of 10

Conceição da Barra 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 28°C through the month.

A typical December day in Conceição da Barra reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, December runs about 1°C warmer than November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12724
22724
32724
42724
52724
62724
72724
82724
92724
102724
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824
312824

Conceição da Barra weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°9212.2135.9
Feb28° / 25°7012.212.65.5
Mar28° / 24°13017.212.15.2
Apr27° / 24°10517.111.65.5
May26° / 22°7213.811.16.3
Jun25° / 21°5411.810.96.8
Jul24° / 21°6013.2116.8
Aug24° / 21°4910.911.47.1
Sep25° / 22°5310.211.97.0
Oct26° / 23°9212.212.46.4
Nov27° / 23°17316.412.95.5
Dec28° / 24°13914.713.15.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 61%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23268
33268
43268
53268
63367
73367
83466
93565
103565
113664
123664
133763
143862
153961
163961
174159
184258
194159
204258
214357
224456
234555
244555
254555
264456
274456
284456
294456
304456
314456

Chance of precipitation in December

Any precipitation

Conceição da Barra gets around 139 mm of rain over 14.7 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 47% and peaks near 56% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
156
255
355
454
553
653
752
851
950
1050
1149
1248
1348
1447
1547
1646
1746
1846
1945
2045
2144
2244
2343
2443
2542
2642
2741
2841
2941
3040
3140

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 91% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1216802
2115822
3114832
4113833
5112843
6112843
7111853
8110863
919873
1008893
1107903
1206922
1306922
1405932
1504942
1604942
1704942
1803952
1903952
2003952
2103952
2203952
2303952
2403952
2503952
2603943
2703943
2803943
2903943
3003934
3103934

Wind in December

Winds average 17 km/h in December.

Across December, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 hours at the start of December to 13 h 06 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 7:00 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:587:00
213.05:587:00
313.15:587:01
413.15:587:02
513.15:587:02
613.15:597:03
713.15:597:03
813.15:597:04
913.15:597:05
1013.16:007:05
1113.16:007:06
1213.16:007:06
1313.16:017:07
1413.16:017:07
1513.16:017:08
1613.16:027:08
1713.16:027:09
1813.16:037:09
1913.16:037:10
2013.16:037:10
2113.16:047:11
2213.16:047:11
2313.16:057:12
2413.16:057:12
2513.16:067:13
2613.16:067:13
2713.16:077:14
2813.16:077:14
2913.16:087:14
3013.16:087:15
3113.16:097:15

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.27 kWh/m².

For context, solar energy here swings from a low near 3.78 kWh/m² to a high of 6.66 kWh/m² in January across the year — December's 6.27 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.9Bright
45.9Bright
55.9Bright
66.0Bright
76.0Intense
86.0Intense
96.1Intense
106.1Intense
116.1Intense
126.2Intense
136.2Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.4Intense
196.4Intense
206.4Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.6Intense
276.6Intense
286.6Intense
296.6Intense
306.6Intense
316.6Intense
Planning a trip in December

Is December a good time to visit Conceição da Barra?

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

5.6
Sightseeing
8th-best month of the year
6.0
Beach & pool
8th-best month of the year

December is a reasonable time to visit Conceição da Barra for sightseeing.

What to pack for Conceição da Barra in December

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

In December, Conceição da Barra sees daytime highs around 28°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near Conceição da Barra in December

The nearest coast averages about 26°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in March at about 28°C and coldest in August near 24°C.

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

22°24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar28Warm
Apr27Warm
May26Warm
Jun25Warm
Jul24Warm
Aug24Warm
Sep25Warm
Oct25Warm
Nov26Warm
Dec26Warm

UV index in Conceição da Barra 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 Conceição da Barra peaks around February 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 14UV 14Jun 20UV 7
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7Very high
Aug9Very high
Sep10Extreme
Oct12Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Conceição da Barra?

Conceição da Barra sits at 18.6°S, 39.7°W, 8 m above sea level, in Brazil. The nearest listed city is São Mateus, 19 km away.

Topography around Conceição da Barra

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

Within 3 km, the terrain around Conceição da Barra has only modest variations in elevation — a maximum elevation change of 23 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 71 m; within 80 km, large variations in elevation — a maximum elevation change of 609 m.

The land around Conceição da Barra is covered by water (52%) and mangroves (23%) within 3 km, water (51%) and trees (33%) within 16 km, and trees (34%), grassland (32%) and water (30%) within 80 km.

3 km
23 m
16 km
71 m
80 km
609 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
December weather nearby: São Mateus 19 km · Jaguaré 50 km · Pinheiros 56 km · Mucuri 60 km · Nova Venécia 72 km · Pedro Canário 77 km · Sooretama 77 km · Posto da Mata 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 Conceição da Barra (-18.5933°, -39.7322°, elevation 8 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).