Maricá weather in December

In December, Maricá sees average daytime highs of 27°C and overnight lows near 24°C, with 123 mm of rain across 13.4 wet days and about 13.4 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 24% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 13 h 18 min at the start of December to 13 h 24 min by month's end. Set against the rest of the year, December is Maricá's 11th-clearest and 5th-windiest month. For the whole year in context, see Maricá's year-round climate.

Daytime high
27°
4th warmest
Overnight low
24°
9th coldest
Rainfall
123 mm
13.4 wet days
Daylight
13 h 24 min
6:05 AM – 7:29 PM
Cloud cover
65%
11th clearest
Wind
12 km/h
5th windiest
Solar energy
6.06 kWh/m²
Travel score
5.8
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 26°C in the first days to 28°C by the end.

A typical December day in Maricá reaches about 27°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 25°C and 30°C. Set against its neighbours, December runs about 2°C warmer than November and about 1°C cooler than January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12623
22623
32623
42623
52723
62723
72723
82723
92723
102723
112723
122723
132724
142724
152724
162724
172724
182724
192724
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824
312824

How December really feels in Maricá

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Maricá weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°12612.213.25.6
Feb29° / 25°809.712.85.6
Mar28° / 24°12414.412.25.6
Apr27° / 23°7812.311.56.4
May25° / 21°7711.610.96.8
Jun24° / 21°427.410.67.7
Jul24° / 20°457.810.77.7
Aug24° / 20°387.511.27.7
Sep24° / 20°619.711.97.2
Oct25° / 21°7210.112.56.8
Nov26° / 22°11313.913.16.0
Dec27° / 24°12313.413.45.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33664
43664
53664
63565
73565
83565
93664
103664
113565
123664
133763
143862
153862
163862
173961
184060
194159
204159
214258
224258
234357
244357
254357
264258
274258
284258
294060
304060
313961

Chance of precipitation in December

Any precipitation

Maricá gets around 123 mm of rain over 13.4 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 44% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
245
345
445
545
645
745
845
945
1045
1145
1245
1344
1444
1544
1644
1744
1844
1944
2044
2144
2243
2343
2444
2544
2644
2744
2844
2944
3044
3144

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 64% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1828595
2827605
3727606
4726616
5725617
6625627
7624628
8523648
9523639
104226410
114216510
123206611
133196612
143186613
152176714
162166715
172156716
182146717
192146618
202136619
212126620
222116621
232106622
241106623
25196525
26196426
27196327
28196327
29196228
301106128
311106029

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3112calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 13 h 18 min at the start of December to 13 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 6:02 AM to 6:13 AM, and sunset from 7:20 PM to 7:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:027:20
213.36:027:21
313.36:027:22
413.36:027:22
513.36:027:23
613.36:037:23
713.46:037:24
813.46:037:25
913.46:037:25
1013.46:037:26
1113.46:047:27
1213.46:047:27
1313.46:047:28
1413.46:057:28
1513.46:057:29
1613.46:057:29
1713.46:067:30
1813.46:067:31
1913.46:077:31
2013.46:077:32
2113.46:087:32
2213.46:087:32
2313.46:087:33
2413.46:097:33
2513.46:097:34
2613.46:107:34
2713.46:117:35
2813.46:117:35
2913.46:127:35
3013.46:127:36
3113.46:137:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.06 kWh/m².

For context, solar energy here swings from a low near 3.42 kWh/m² to a high of 6.22 kWh/m² in February across the year — December's 6.06 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
96.0Bright
106.0Bright
116.0Bright
126.0Bright
136.0Bright
146.0Intense
156.0Intense
166.0Intense
176.0Intense
186.0Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in December

Is December a good time to visit Maricá?

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

5.8
Sightseeing
9th-best month of the year
6.0
Beach & pool
10th-best month of the year

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

What to pack for Maricá in December

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

In December, Maricá sees daytime highs around 27°C and nights near 24°C. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.

light clothessun protectionrain gear

Sea temperature near Maricá in December

The nearest coast averages about 24°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 24 km away) is warmest in March at about 25°C and coldest in August near 21°C.

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

20°22°24°26°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar25Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug21Refreshing
Sep21Refreshing
Oct22Refreshing
Nov23Refreshing
Dec24Warm

UV index in Maricá in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Maricá peaks around January 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighHighVery highExtremeJan 13UV 14Jul 13UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5Moderate
Aug8Very high
Sep7High
Oct12Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Maricá?

Maricá sits at 22.9°S, 42.8°W, 10 m above sea level, in Brazil. The nearest listed city is Itaboraí, 20 km away.

Topography around Maricá

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

Within 3 km, the terrain around Maricá has significant variations in elevation — a maximum elevation change of 283 m around an average of 21 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 842 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.

The land around Maricá is covered by trees (38%), artificial surfaces (28%) and water (21%) within 3 km, trees (37%), water (35%) and grassland (21%) within 16 km, and trees (38%) and water (36%) within 80 km.

3 km
283 m
16 km
842 m
80 km
2,252 m
treesgrasslandartificial surfaceswaterwetlandmangroves
December weather nearby: Itaboraí 20 km · Tanguá 24 km · Niterói 29 km · Rio Bonito 32 km · Saquarema 36 km · Catete 37 km · Rio de Janeiro 37 km · Magé 37 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 Maricá (-22.9194°, -42.8186°, elevation 10 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).