Macaé weather in December

In December, Macaé sees average daytime highs of 27°C and overnight lows near 24°C, with 149 mm of rain across 14.7 wet days and about 13.3 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. 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 Macaé's 11th-clearest and 7th-windiest month. For the whole year in context, see Macaé's year-round climate.

Daytime high
27°
4th warmest
Overnight low
24°
9th coldest
Rainfall
149 mm
14.7 wet days
Daylight
13 h 24 min
6:02 AM – 7:24 PM
Cloud cover
66%
11th clearest
Wind
16 km/h
7th windiest
Solar energy
6.18 kWh/m²
Travel score
5.8
out of 10

Macaé is human settlement in Brazil.

Air quality
Good
PM10 21 µg/m³ · 2015

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 27°C through the month.

A typical December day in Macaé reaches about 27°C in the afternoon and slips back to 24°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, December runs about 1°C warmer than November and about 1°C cooler than January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12623
22623
32623
42623
52623
62623
72623
82623
92623
102623
112623
122623
132623
142724
152724
162724
172724
182724
192724
202724
212724
222724
232724
242724
252724
262724
272724
282724
292724
302724
312724

Macaé weather by month

How December compares with the rest of the year at a glance. December is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°13911.813.26.1
Feb28° / 24°808.812.86.4
Mar27° / 24°12413.812.26.0
Apr26° / 23°7211.111.56.6
May25° / 22°579.710.97.2
Jun24° / 21°305.910.78.0
Jul24° / 20°336.210.87.9
Aug24° / 20°316.511.27.8
Sep24° / 21°608.911.97.3
Oct24° / 21°8610.112.56.8
Nov25° / 22°15414.313.15.9
Dec27° / 24°14914.713.35.8

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 12% of December, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23664
33664
43466
53466
63466
73367
83268
93268
103268
113367
123466
133466
143466
153466
163565
173763
183763
193862
203862
213961
224060
234060
244060
254159
264060
273961
283961
293961
303961
313961

Chance of precipitation in December

Any precipitation

Macaé gets around 149 mm of rain over 14.7 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 48% and peaks near 50% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
148
248
349
449
550
650
750
850
950
1050
1150
1249
1349
1449
1548
1648
1747
1847
1946
2046
2146
2245
2345
2445
2545
2646
2746
2846
2946
3046
3145

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 71% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11925623
21824634
31824634
41723645
51723645
61622656
71621666
81521667
91520677
101420678
111419688
121318708
130317719
140216729
1502167210
1602157310
1702147311
1802137411
1901127512
2001117612
2101117513
2201107613
2301107514
240197614
250197614
260197515
270187615
280187516
290197416
300197416
310197416

Wind in December

Winds average 16 km/h in December.

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

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light 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 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 5:59 AM to 6:10 AM, and sunset from 7:15 PM to 7:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:597:15
213.35:597:16
313.35:597:16
413.35:597:17
513.35:597:18
613.35:597:18
713.36:007:19
813.36:007:20
913.36:007:20
1013.36:007:21
1113.36:017:21
1213.36:017:22
1313.46:017:23
1413.46:027:23
1513.46:027:24
1613.46:027:24
1713.46:037:25
1813.46:037:25
1913.46:047:26
2013.46:047:26
2113.46:047:27
2213.46:057:27
2313.46:057:28
2413.46:067:28
2513.46:067:29
2613.46:077:29
2713.46:077:29
2813.46:087:30
2913.46:097:30
3013.46:097:31
3113.46:107:31

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 6.18 kWh/m².

For context, solar energy here swings from a low near 3.55 kWh/m² to a high of 6.42 kWh/m² in February across the year — December's 6.18 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
26.0Bright
36.0Bright
46.0Bright
56.0Bright
66.0Bright
76.0Bright
86.0Intense
96.0Intense
106.0Intense
116.0Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in December

Hazard calendar for Macaé

In seasonPeak

In December, Macaé sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Macaé's rainy season runs October–April, when most of the year's rain falls.

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

Is December a good time to visit Macaé?

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

5.8
Sightseeing
12th-best month of the year
5.7
Beach & pool
11th-best month of the year

December is a reasonable time to visit Macaé for sightseeing.

What to pack for Macaé in December

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

In December, Macaé sees daytime highs around 27°C and nights near 24°C. Pack rain gear and sun protection. Worth having: light clothes. About 15 days see rain.

rain gearsun protectionlight clothes

Sea temperature near Macaé 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 16 km away) is warmest in March at about 25°C and coldest in September near 22°C.

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

20°22°24°26°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb24Warm
Mar25Warm
Apr25Warm
May24Refreshing
Jun23Refreshing
Jul22Refreshing
Aug22Refreshing
Sep22Refreshing
Oct22Refreshing
Nov23Refreshing
Dec24Refreshing

UV index in Macaé in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Macaé peaks around January 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 16UV 14Jul 11UV 6
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Macaé?

Macaé sits at 22.4°S, 41.8°W, 8 m above sea level, in Brazil. The nearest listed city is Rio das Ostras, 23 km away.

Topography around Macaé

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

Within 3 km, the terrain around Macaé has only modest variations in elevation — a maximum elevation change of 70 m around an average of 6 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 408 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,806 m.

The land around Macaé is covered by water (43%) and artificial surfaces (33%) within 3 km, water (50%) and grassland (27%) within 16 km, and grassland (34%), water (34%) and trees (27%) within 80 km.

3 km
70 m
16 km
408 m
80 km
1,806 m
treesgrasslandartificial surfacesbare terrainwaterwetland
December weather nearby: Rio das Ostras 23 km · Conceição de Macabu 34 km · Buzios 42 km · Quissamã 45 km · Casimiro de Abreu 45 km · São Pedro da Aldeia 60 km · Cabo Frio 61 km · Iguaba Grande 68 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 Macaé (-22.3848°, -41.7832°, elevation 8 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).