Maricá weather in August

In August, Maricá sees average daytime highs of 24°C and overnight lows near 20°C, with 38 mm of rain across 7.5 wet days and about 11.2 hours of daylight. It is the 11th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 53% of the time in August, and the air most often feels muggy.

Daylight stretches from about 10 h 54 min at the start of August to 11 h 30 min by month's end. Set against the rest of the year, August is Maricá's 1st-clearest and 3rd-windiest month. For the whole year in context, see Maricá's year-round climate.

Daytime high
24°
11th warmest
Overnight low
20°
1st coldest
Rainfall
38 mm
7.5 wet days
Daylight
11 h 12 min
7:19 AM – 6:31 PM
Cloud cover
41%
1st clearest
Wind
14 km/h
3rd windiest
Solar energy
4.3 kWh/m²
Travel score
7.7
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical August day in Maricá reaches about 24°C in the afternoon and slips back to 20°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 26°C. Set against its neighbours, August runs on par with July and on par with September.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12420
22420
32420
42420
52420
62420
72420
82420
92420
102420
112420
122420
132420
142420
152420
162420
172420
182420
192420
202420
212420
222420
232420
242420
252420
262420
272420
282420
292420
302420
312420

How August really feels in Maricá

Once humidity and wind are folded in, August 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

August 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 August compares with the rest of the year at a glance. August is the 11th-warmest and 12th-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 31%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26832
36832
46832
56832
66832
76733
86733
96733
106832
116832
126832
136931
146931
156931
166931
176931
186931
196931
206931
216931
227030
237030
247030
256931
266931
276931
286931
296931
306931
316931

Chance of precipitation in August

Any precipitation

Maricá gets around 38 mm of rain over 7.5 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 25% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
125
225
325
425
525
625
725
825
925
1025
1125
1225
1325
1425
1525
1625
1725
1825
1925
2024
2124
2224
2324
2424
2524
2624
2724
2824
2924
3024
3124

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 52% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
111334520
211334520
321234520
421235510
521235510
621235501
721235501
821235491
921235491
1021335491
1121335482
1221335482
1321335482
1421335482
1521335482
1621335482
1721335482
1821335482
1921335492
2021235492
2111235502
2211134522
2311134522
2411133532
2511133541
2611032561
2711032561
2811031571
2911031571
3011031571
3111031562

Wind in August

Winds average 14 km/h in August.

Across August, daily wind ranges from about 13 km/h on the calmest days to 15 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
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 54 min at the start of August to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over August. Sunrise moves from 7:29 AM to 7:06 AM, and sunset from 6:25 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.97:296:25
210.97:296:26
311.07:286:26
411.07:286:27
511.07:276:27
611.07:266:27
711.07:266:28
811.17:256:28
911.17:246:29
1011.17:246:29
1111.17:236:29
1211.17:226:30
1311.17:226:30
1411.27:216:31
1511.27:206:31
1611.27:196:31
1711.27:196:32
1811.27:186:32
1911.37:176:33
2011.37:166:33
2111.37:156:33
2211.37:146:34
2311.37:136:34
2411.47:136:34
2511.47:126:35
2611.47:116:35
2711.47:106:35
2811.47:096:36
2911.57:086:36
3011.57:076:36
3111.57:066:37

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.3 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 — August's 4.3 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
44.0Moderate
54.0Moderate
64.0Bright
74.0Bright
84.0Bright
94.1Bright
104.1Bright
114.1Bright
124.2Bright
134.2Bright
144.2Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.4Bright
204.4Bright
214.4Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.6Bright
274.6Bright
284.6Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in August

Is August a good time to visit Maricá?

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

7.7
Sightseeing
1st-best month of the year
6.4
Beach & pool
5th-best month of the year

August is one of the better times to visit Maricá for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Maricá in August

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

In August, Maricá sees daytime highs around 24°C and nights near 20°C. Worth packing: light clothes. About 8 days see rain.

light clothes

Sea temperature near Maricá in August

The nearest coast averages about 21°C in August — 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 August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 — enough to warrant sun protection. 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
August 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).