Caucaia weather in December

In December, Caucaia sees average daytime highs of 31°C and overnight lows near 25°C, with 20 mm of rain across 5.4 wet days and about 12.2 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 48% 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 Caucaia's 7th-clearest and 6th-windiest month. For the whole year in context, see Caucaia's year-round climate.

Daytime high
31°
5th warmest
Overnight low
25°
12th coldest
Rainfall
20 mm
5.4 wet days
Daylight
12 h 12 min
5:24 AM – 5:37 PM
Cloud cover
47%
7th clearest
Wind
18 km/h
6th windiest
Solar energy
6.08 kWh/m²
Travel score
5.0
out of 10

Caucaia 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 31°C through the month.

A typical December day in Caucaia reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 32°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13125
23125
33125
43125
53125
63125
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243125
253125
263125
273125
283125
293125
303125
313125

How December really feels in Caucaia

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.

Caucaia weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 25°8014.512.24.2
Feb30° / 25°11818.312.13.8
Mar30° / 24°17123.9123.5
Apr29° / 24°20923.711.93.5
May30° / 24°9516.511.84.4
Jun30° / 24°449.711.85.3
Jul30° / 24°214.611.85.7
Aug31° / 24°4111.95.8
Sep31° / 24°20.2125.8
Oct31° / 25°30.612.15.6
Nov31° / 25°41.312.25.4
Dec31° / 25°205.412.25.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27228
37228
47228
57228
67030
77030
87030
97030
107030
116931
126832
136832
146832
156733
166733
176634
186535
196535
206436
216436
226436
236436
246337
256337
266238
276238
286139
296139
306040
315941

Chance of precipitation in December

Any precipitation

Caucaia gets around 20 mm of rain over 5.4 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 18% and peaks near 32% 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
69
79
810
911
1012
1113
1214
1315
1416
1517
1618
1719
1820
1921
2022
2123
2224
2324
2425
2526
2627
2728
2829
2930
3031
3132

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 94% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
17921
27921
37921
47921
56931
66931
76931
86931
95941
105941
115950
125950
135950
145950
154960
164960
174960
184960
194951
204951
214951
224951
234951
244942
254942
264942
274942
284933
293943
303943
313943

Wind in December

Winds average 18 km/h in December.

Across December, daily wind ranges from about 16 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3116light 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 5:18 AM to 5:31 AM, and sunset from 5:30 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:185:30
212.25:195:31
312.25:195:31
412.25:195:32
512.25:205:32
612.25:205:33
712.25:215:33
812.25:215:33
912.25:215:34
1012.25:225:34
1112.25:225:35
1212.25:235:35
1312.25:235:36
1412.25:235:36
1512.25:245:37
1612.25:245:37
1712.25:255:38
1812.25:255:38
1912.25:265:39
2012.25:265:39
2112.25:275:40
2212.25:275:40
2312.25:285:41
2412.25:285:41
2512.25:295:41
2612.25:295:42
2712.25:295:42
2812.25:305:43
2912.25:305:43
3012.25:315:44
3112.25:315:44

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.08 kWh/m².

For context, solar energy here swings from a low near 4.71 kWh/m² to a high of 6.69 kWh/m² in September across the year — December's 6.08 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.2Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.0Intense
176.0Intense
186.0Intense
196.0Intense
206.0Bright
216.0Bright
226.0Bright
236.0Bright
246.0Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.8Bright
Planning a trip in December

Hazard calendar for Caucaia

In seasonPeak

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

Caucaia's monsoon runs February–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 Caucaia?

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

5.0
Sightseeing
7th-best month of the year
7.4
Beach & pool
6th-best month of the year

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

What to pack for Caucaia in December

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

In December, Caucaia sees daytime highs around 31°C and nights near 25°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near Caucaia 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 13 km away) is warmest in April at about 29°C and coldest in August 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
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul27Warm
Aug27Warm
Sep27Warm
Oct27Warm
Nov27Warm
Dec28Warm

UV index in Caucaia 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 Caucaia peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 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 16UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme
Location & terrain

Where is Caucaia?

Caucaia sits at 3.7°S, 38.7°W, 35 m above sea level, in Brazil. The nearest listed city is Fortaleza, 12 km away.

Topography around Caucaia

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

Within 3 km, the terrain around Caucaia has only modest variations in elevation — a maximum elevation change of 35 m around an average of 14 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 642 m; within 80 km, large variations in elevation — a maximum elevation change of 1,081 m.

The land around Caucaia is covered by trees (31%), artificial surfaces (31%) and grassland (25%) within 3 km, trees (28%), water (25%) and artificial surfaces (23%) within 16 km, and water (35%), trees (22%) and shrubs (20%) within 80 km.

3 km
35 m
16 km
642 m
80 km
1,081 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
December weather nearby: Fortaleza 12 km · Maracanaú 16 km · Maranguape 18 km · Pacatuba 28 km · Eusébio 28 km · Itaitinga 29 km · Guaiúba 34 km · Aquiraz 34 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 Caucaia (-3.7361°, -38.6531°, elevation 35 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).