Icó weather in December

In December, Icó sees average daytime highs of 35°C and overnight lows near 24°C, with 30 mm of rain across 4.6 wet days and about 12.4 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 38% of the time in December, and the air most often feels humid.

Daylight stretches from about 12 h 18 min at the start of December to 12 h 24 min by month's end. Set against the rest of the year, December is Icó's 7th-clearest and 7th-windiest month. For the whole year in context, see Icó's year-round climate.

Daytime high
35°
3rd warmest
Overnight low
24°
12th coldest
Rainfall
30 mm
4.6 wet days
Daylight
12 h 24 min
5:21 AM – 5:43 PM
Cloud cover
53%
7th clearest
Wind
11 km/h
7th windiest
Solar energy
6.59 kWh/m²
Travel score
2.8
out of 10

Icó 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 35°C through the month.

A typical December day in Icó reaches about 35°C in the afternoon and slips back to 24°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 37°C. Set against its neighbours, December runs on par with November and about 2°C warmer than January.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13625
23625
33625
43625
53625
63525
73525
83525
93525
103525
113525
123525
133525
143525
153525
163525
173524
183524
193524
203524
213524
223524
233524
243524
253524
263524
273524
283524
293524
303524
313524

How December really feels in Icó

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.

Icó weather by month

How December compares with the rest of the year at a glance. December is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 24°12814.612.32.9
Feb32° / 23°14315.612.23.1
Mar32° / 23°18720.1123.2
Apr31° / 23°13416.311.93.6
May31° / 23°708.811.74.4
Jun31° / 22°243.611.65.0
Jul32° / 21°102.111.74.9
Aug33° / 22°30.511.84.3
Sep35° / 23°10.4123.4
Oct36° / 24°11112.12.9
Nov36° / 24°61.212.32.7
Dec35° / 24°304.612.42.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% 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 40%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26337
36337
46337
56337
66337
76337
86337
96337
106238
116238
126238
136139
146238
156139
166040
176139
186040
196040
206040
215941
225842
235842
245842
255743
265743
275743
285644
295644
305545
315545

Chance of precipitation in December

Any precipitation

Icó gets around 30 mm of rain over 4.6 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 15% and peaks near 28% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
16
27
37
47
58
68
79
89
910
1010
1111
1212
1312
1413
1513
1614
1715
1815
1916
2017
2118
2219
2319
2420
2521
2622
2723
2824
2925
3026
3128

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 45% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11258282
21158283
31158283
41157293
51156294
61057294
71056304
8955315
9955315
10855325
11854335
12753346
13752356
14652366
15651376
16649387
17648397
18647397
19646408
20744418
21743428
22742429
23741439
247404310
257394411
267374411
277364412
287354413
297344514
307334515
317324516

Wind in December

Winds average 11 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 18 min at the start of December to 12 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 5:15 AM to 5:28 AM, and sunset from 5:36 PM to 5:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:155:36
212.35:155:36
312.35:155:36
412.45:165:37
512.45:165:37
612.45:175:38
712.45:175:38
812.45:175:39
912.45:185:39
1012.45:185:40
1112.45:185:40
1212.45:195:41
1312.45:195:41
1412.45:205:42
1512.45:205:42
1612.45:215:43
1712.45:215:43
1812.45:215:44
1912.45:225:44
2012.45:225:45
2112.45:235:45
2212.45:235:46
2312.45:245:46
2412.45:245:47
2512.45:255:47
2612.45:255:47
2712.45:265:48
2812.45:265:48
2912.45:275:49
3012.45:275:49
3112.45:285:50

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.59 kWh/m².

For context, solar energy here swings from a low near 4.91 kWh/m² to a high of 7.18 kWh/m² in October across the year — December's 6.59 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.8Intense
36.8Intense
46.8Intense
56.8Intense
66.8Intense
76.7Intense
86.7Intense
96.7Intense
106.7Intense
116.7Intense
126.6Intense
136.6Intense
146.6Intense
156.6Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.4Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
316.3Intense
Planning a trip in December

Hazard calendar for Icó

In seasonPeak

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

Icó's monsoon runs January–April, 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 Icó?

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

2.8
Sightseeing
11th-best month of the year
6.1
Beach & pool
8th-best month of the year

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

What to pack for Icó in December

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

In December, Icó sees daytime highs around 35°C and nights near 24°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Icó 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 Icó peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 13UV 15Jul 15UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme
Location & terrain

Where is Icó?

Icó sits at 6.4°S, 38.9°W, 156 m above sea level, in Brazil. The nearest listed city is Orós, 18 km away.

Topography around Icó

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

Within 3 km, the terrain around Icó has only modest variations in elevation — a maximum elevation change of 94 m around an average of 164 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 552 m; within 80 km, large variations in elevation — a maximum elevation change of 772 m.

The land around Icó is covered by grassland (39%), shrubs (23%) and cropland (22%) within 3 km, shrubs (60%) and grassland (26%) within 16 km, and shrubs (57%) and grassland (31%) within 80 km.

3 km
94 m
16 km
552 m
80 km
772 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Orós 18 km · Cedro 32 km · Lavras da Mangabeira 41 km · Quixelô 41 km · São Miguel 46 km · Iguatu 48 km · São João do Rio do Peixe 58 km · Pereiro 60 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 Icó (-6.4011°, -38.8622°, elevation 156 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. 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).