Araioses weather in December

In December, Araioses sees average daytime highs of 34°C and overnight lows near 25°C, with 38 mm of rain across 7.9 wet days and about 12.2 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 33% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of December to 12 h 12 min by month's end. Set against the rest of the year, December is Araioses's 7th-clearest and 4th-windiest month. For the whole year in context, see Araioses's year-round climate.

Daytime high
34°
5th warmest
Overnight low
25°
12th coldest
Rainfall
38 mm
7.9 wet days
Daylight
12 h 12 min
5:39 AM – 5:49 PM
Cloud cover
56%
7th clearest
Wind
19 km/h
4th windiest
Solar energy
6.09 kWh/m²
Travel score
3.4
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical December day in Araioses reaches about 34°C in the afternoon and slips back to 25°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 35°C. Set against its neighbours, December runs about 1°C cooler than November and about 2°C warmer than January.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13425
23425
33425
43425
53425
63425
73425
83425
93425
103425
113425
123425
133425
143425
153425
163425
173425
183325
193325
203325
213325
223325
233325
243325
253325
263325
273325
283325
293325
303325
313325

How December really feels in Araioses

Once humidity and wind are folded in, December averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Araioses weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 25°13620.312.13.1
Feb31° / 24°18023.312.12.9
Mar30° / 24°26728122.8
Apr30° / 24°27826.411.92.9
May31° / 25°16619.111.93.5
Jun32° / 24°398.311.84.3
Jul33° / 24°20311.84.3
Aug34° / 24°30.811.93.7
Sep35° / 25°10.2123.4
Oct35° / 25°60.912.13.4
Nov34° / 25°92.212.13.4
Dec34° / 25°387.912.23.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 44%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26238
36139
46139
56139
66139
76139
86139
96238
106139
116139
126139
136040
146040
155941
165941
175743
185644
195644
205446
215446
225347
235149
245149
255050
265050
274852
284852
294654
304654
314456

Chance of precipitation in December

Any precipitation

Araioses gets around 38 mm of rain over 7.9 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 26% and peaks near 48% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
112
212
313
413
514
614
715
816
917
1018
1119
1220
1321
1422
1523
1625
1726
1827
1928
2030
2131
2232
2334
2435
2537
2639
2741
2842
2944
3046
3148

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 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
115841
214851
314851
413861
513861
612871
711872
811872
910882
109892
119892
128902
137912
147912
156922
166922
175932
185932
195932
205923
215923
225923
235923
245923
254924
264924
274924
284915
294915
304906
313916

Wind in December

Winds average 19 km/h in December.

Across December, daily wind ranges from about 17 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120light breeze
220light breeze
320light breeze
420light breeze
520light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light 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 12 h 12 min at the start of December to 12 h 12 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 5:33 AM to 5:46 AM, and sunset from 5:42 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:335:42
212.25:335:42
312.25:335:43
412.25:345:43
512.25:345:44
612.25:355:44
712.25:355:45
812.25:355:45
912.25:365:45
1012.25:365:46
1112.25:375:46
1212.25:375:47
1312.25:375:47
1412.25:385:48
1512.25:385:48
1612.25:395:49
1712.25:395:49
1812.25:405:50
1912.25:405:50
2012.25:415:51
2112.25:415:51
2212.25:425:52
2312.25:425:52
2412.25:435:53
2512.25:435:53
2612.25:435:53
2712.25:445:54
2812.25:445:54
2912.25:455:55
3012.25:455:55
3112.25:465:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.09 kWh/m².

For context, solar energy here swings from a low near 4.9 kWh/m² to a high of 6.91 kWh/m² in October across the year — December's 6.09 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.1Intense
156.1Intense
166.1Intense
176.0Intense
186.0Intense
196.0Intense
206.0Bright
216.0Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in December

Hazard calendar for Araioses

In seasonPeak

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

Araioses's monsoon runs January–May, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Araioses?

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

3.4
Sightseeing
5th-best month of the year
6.3
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Araioses. The water and warmth also suit a beach or pool day.

What to pack for Araioses in December

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

In December, Araioses sees daytime highs around 34°C and nights near 25°C. Pack light clothes and sun protection. About 8 days see rain.

light clothessun protection

Sea temperature near Araioses in December

The nearest coast averages about 28°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 30 km away) is warmest in April at about 29°C and coldest in September near 27°C.

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

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun28Tropical
Jul28Warm
Aug27Warm
Sep27Warm
Oct27Warm
Nov27Warm
Dec28Warm

UV index in Araioses in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Araioses peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 15Jul 14UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Araioses in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Araioses is worst in December — around 18 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (August, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateDec 1217 µg/m³Aug 216 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb15Moderate
Mar13Moderate
Apr11Good
May8Good
Jun7Good
Jul9Good
Aug6Good
Sep7Good
Oct10Good
Nov16Moderate
Dec18Moderate
Location & terrain

Where is Araioses?

Araioses sits at 2.9°S, 41.9°W, 7 m above sea level, in Brazil. The nearest listed city is Ilha Grande, 10 km away.

Topography around Araioses

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

Within 3 km, the terrain around Araioses has only modest variations in elevation — a maximum elevation change of 36 m around an average of 7 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 64 m; within 80 km, significant variations in elevation — a maximum elevation change of 533 m.

The land around Araioses is covered by grassland (46%) and trees (25%) within 3 km, grassland (33%) and trees (31%) within 16 km, and trees (39%) and water (33%) within 80 km.

3 km
36 m
16 km
64 m
80 km
533 m
treesshrubsgrasslandartificial surfacesbare terrainwaterwetlandmangroves
December weather nearby: Ilha Grande 10 km · Parnaíba 14 km · Luís Correia 26 km · Buriti dos Lopes 32 km · Tutóia 44 km · Paulino Neves 73 km · Cocal 75 km · São Bernardo 78 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 Araioses (-2.89°, -41.9031°, elevation 7 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).