Apicum-Açu weather in December

In December, Apicum-Açu sees average daytime highs of 29°C and overnight lows near 26°C, with 65 mm of rain across 15.5 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 31% of the time in December, and the air most often feels miserable.

Daylight stretches from about 12 h 06 min at the start of December to 12 h 06 min by month's end. Set against the rest of the year, December is Apicum-Açu's 7th-clearest and 5th-windiest month. For the whole year in context, see Apicum-Açu's year-round climate.

Daytime high
29°
1st warmest
Overnight low
26°
11th coldest
Rainfall
65 mm
15.5 wet days
Daylight
12 h 06 min
5:54 AM – 5:59 PM
Cloud cover
59%
7th clearest
Wind
17 km/h
5th windiest
Solar energy
5.61 kWh/m²
Travel score
4.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Apicum-Açu reaches about 29°C in the afternoon and slips back to 26°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°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)
12926
22926
32926
42926
52926
62926
72926
82926
92926
102926
112926
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242926
252926
262926
272926
282926
292926
302926
312926

How December really feels in Apicum-Açu

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.

Apicum-Açu weather by month

How December compares with the rest of the year at a glance. December is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°19625.512.13.7
Feb28° / 25°29726.4123.4
Mar28° / 25°39830.3123.3
Apr28° / 25°39928.9123.2
May29° / 25°25627.411.93.5
Jun29° / 25°11622.211.94.3
Jul28° / 25°721911.95.0
Aug28° / 26°3312.4125.9
Sep28° / 26°186.4126.6
Oct29° / 26°155.2126.5
Nov29° / 26°205.712.16.2
Dec29° / 26°6515.512.14.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 21% of December, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26238
36040
46040
56040
66040
75842
85842
95842
105743
115743
125644
135545
145446
155347
165248
175149
185050
194951
204852
214852
224654
234654
244555
254555
264456
274456
284258
294258
304159
314060

Chance of precipitation in December

Any precipitation

Apicum-Açu gets around 65 mm of rain over 15.5 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 50% and peaks near 69% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
126
227
328
430
532
634
736
838
940
1041
1143
1245
1347
1449
1550
1652
1754
1855
1956
2058
2159
2260
2361
2462
2563
2664
2765
2866
2967
3068
3169

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the miserable band about 60% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
15149
25149
35050
45050
54951
64852
74753
84654
94555
104555
114456
124357
134258
144159
154060
163961
173862
183763
193664
203565
213565
223466
233466
243367
253367
263367
273367
283466
293466
303466
313466

Wind in December

Winds average 17 km/h in December.

Across December, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light 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
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 h 06 min at the start of December to 12 h 06 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 5:48 AM to 6:01 AM, and sunset from 5:53 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.15:485:53
212.15:485:53
312.15:485:53
412.15:495:54
512.15:495:54
612.15:505:55
712.15:505:55
812.15:505:55
912.15:515:56
1012.15:515:56
1112.15:525:57
1212.15:525:57
1312.15:525:58
1412.15:535:58
1512.15:535:59
1612.15:545:59
1712.15:546:00
1812.15:556:00
1912.15:556:01
2012.15:566:01
2112.15:566:01
2212.15:576:02
2312.15:576:02
2412.15:586:03
2512.15:586:03
2612.15:596:04
2712.15:596:04
2812.15:596:05
2912.16:006:05
3012.16:006:06
3112.16:016:06

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.61 kWh/m².

For context, solar energy here swings from a low near 4.21 kWh/m² to a high of 6.21 kWh/m² in October across the year — December's 5.61 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in December

Hazard calendar for Apicum-Açu

In seasonPeak

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

Apicum-Açu'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 Apicum-Açu?

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

4.9
Sightseeing
6th-best month of the year
6.2
Beach & pool
5th-best month of the year

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

What to pack for Apicum-Açu in December

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

In December, Apicum-Açu sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Apicum-Açu 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 18 km away) is warmest in May at about 29°C and coldest in September near 28°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
Jun29Tropical
Jul28Tropical
Aug28Warm
Sep28Warm
Oct28Warm
Nov28Tropical
Dec28Tropical

UV index in Apicum-Açu 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 Apicum-Açu peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 19 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 19UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Apicum-Açu 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 Apicum-Açu is worst in February — around 20 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (July, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodFeb 2020 µg/m³Jul 126 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb20Moderate
Mar19Moderate
Apr13Moderate
May8Good
Jun7Good
Jul6Good
Aug8Good
Sep9Good
Oct10Good
Nov10Good
Dec12Good
Location & terrain

Where is Apicum-Açu?

Apicum-Açu sits at 1.5°S, 45.1°W, 1 m above sea level, in Brazil. The nearest listed city is Bacuri, 23 km away.

Topography around Apicum-Açu

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

Within 3 km, the terrain around Apicum-Açu has only modest variations in elevation — a maximum elevation change of 26 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 52 m; within 80 km, only modest variations in elevation — a maximum elevation change of 122 m.

The land around Apicum-Açu is covered by mangroves (35%), trees (31%) and grassland (26%) within 3 km, water (36%), mangroves (30%) and trees (26%) within 16 km, and water (44%) and trees (35%) within 80 km.

3 km
26 m
16 km
52 m
80 km
122 m
treesgrasslandartificial surfaceswaterwetlandmangroves
December weather nearby: Bacuri 23 km · Turiaçu 36 km · Cururupu 41 km · Cândido Mendes 73 km · Turilândia 81 km · Santa Helena 82 km · Bequimão 108 km · Pinheiro 110 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 Apicum-Açu (-1.5282°, -45.0786°, elevation 1 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).