Maricá weather in January

In January, Maricá sees average daytime highs of 28°C and overnight lows near 25°C, with 126 mm of rain across 12.2 wet days and about 13.2 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 27% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 13 h 24 min at the start of January to 13 h 06 min by month's end. Set against the rest of the year, January is Maricá's 10th-clearest and 8th-windiest month. For the whole year in context, see Maricá's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
25°
11th coldest
Rainfall
126 mm
12.2 wet days
Daylight
13 h 18 min
6:23 AM – 7:39 PM
Cloud cover
65%
10th clearest
Wind
12 km/h
8th windiest
Solar energy
6.11 kWh/m²
Travel score
5.6
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical January day in Maricá reaches about 28°C in the afternoon and slips back to 25°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 31°C. Set against its neighbours, January runs about 1°C warmer than December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12824
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142825
152825
162825
172825
182825
192825
202825
212825
222825
232825
242825
252825
262825
272825
282825
292925
302925
312925

How January really feels in Maricá

Once humidity and wind are folded in, January averages 12 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
12
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Maricá weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 1st-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 January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33961
43862
53961
63862
73961
83862
93862
103961
113961
123961
134060
144060
154159
164159
174159
184159
194060
204159
214159
224159
234258
244357
254258
264258
274357
284456
294456
304555
314654

Chance of precipitation in January

Any precipitation

Maricá gets around 126 mm of rain over 12.2 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 43% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
143
242
342
441
541
640
740
839
939
1039
1138
1238
1338
1438
1538
1638
1738
1838
1938
2039
2138
2238
2338
2438
2537
2637
2736
2836
2935
3035
3135

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the oppressive band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11106029
21106029
31106029
41105930
51105930
61105930
71105930
8196030
9195931
10195931
11195931
12195832
13195832
14185932
15185833
16185833
17185734
18195634
19195634
20195535
21195535
22195436
23195436
24195436
25195337
26195337
27195337
28185437
29185437
30185437
31185536

Wind in January

Winds average 12 km/h in January.

Across January, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 13 h 24 min at the start of January to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over January. Sunrise moves from 6:13 AM to 6:33 AM, and sunset from 7:36 PM to 7:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.46:137:36
213.46:137:36
313.46:147:37
413.46:157:37
513.46:157:37
613.46:167:37
713.36:177:38
813.36:177:38
913.36:187:38
1013.36:197:38
1113.36:197:38
1213.36:207:38
1313.36:217:38
1413.36:217:38
1513.36:227:38
1613.36:237:39
1713.36:237:39
1813.26:247:39
1913.26:257:38
2013.26:257:38
2113.26:267:38
2213.26:277:38
2313.26:277:38
2413.26:287:38
2513.26:297:38
2613.16:297:38
2713.16:307:37
2813.16:317:37
2913.16:317:37
3013.16:327:37
3113.16:337:36

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 6.11 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 — January's 6.11 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in January

Is January a good time to visit Maricá?

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

5.6
Sightseeing
10th-best month of the year
6.5
Beach & pool
3rd-best month of the year

January 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 January

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

In January, Maricá sees daytime highs around 28°C and nights near 25°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

Sea temperature near Maricá in January

The nearest coast averages about 25°C in January — 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 January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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
January 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).