Macaé weather in August

In August, Macaé sees average daytime highs of 24°C and overnight lows near 20°C, with 31 mm of rain across 6.5 wet days and about 11.2 hours of daylight. It is the 12th-warmest and 11th-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 55% of the time in August, and the air most often feels muggy.

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

Daytime high
24°
12th warmest
Overnight low
20°
2nd coldest
Rainfall
31 mm
6.5 wet days
Daylight
11 h 12 min
7:15 AM – 6:28 PM
Cloud cover
41%
3rd clearest
Wind
18 km/h
3rd windiest
Solar energy
4.39 kWh/m²
Travel score
7.8
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 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 Macaé 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)
12320
22320
32320
42320
52320
62320
72320
82320
92320
102320
112320
122320
132320
142320
152320
162320
172320
182320
192320
202320
212420
222420
232420
242420
252420
262420
272420
282420
292420
302420
312420

Macaé weather by month

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

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 30%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27228
37129
47129
57129
67030
77030
87030
97129
107129
117030
127030
137030
147129
157129
167030
177030
187129
197030
207129
217030
227129
237129
247030
257030
267030
276931
287030
296931
306931
316931

Chance of precipitation in August

Any precipitation

Macaé gets around 31 mm of rain over 6.5 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 21% and peaks near 23% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
120
220
320
420
520
620
720
820
920
1020
1121
1221
1321
1422
1522
1623
1723
1823
1923
2023
2123
2223
2323
2422
2522
2622
2722
2821
2921
3021
3121

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 54% of days. Sticky, muggy-or-worse air turns up on roughly 55% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
121331540
211331550
311331541
421331531
521331531
621331531
721331531
821332521
921332521
1021332521
1121332521
1221333502
1321333502
1421333502
1521333502
1621433502
1721433501
1821433501
1921333511
2021332521
2121332521
2211231551
2311231551
2411230561
2511229571
2611128591
2711127601
2811127601
2911126611
3011126611
3111126602

Wind in August

Winds average 18 km/h in August.

Across August, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
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
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2919light breeze
3019light breeze
3119light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 11 hours 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 30 minutes over August. Sunrise moves from 7:24 AM to 7:01 AM, and sunset from 6:22 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:246:22
211.07:246:22
311.07:236:23
411.07:236:23
511.07:226:24
611.07:226:24
711.17:216:24
811.17:206:25
911.17:206:25
1011.17:196:26
1111.17:186:26
1211.17:186:26
1311.27:176:27
1411.27:166:27
1511.27:156:28
1611.27:156:28
1711.27:146:28
1811.37:136:29
1911.37:126:29
2011.37:116:29
2111.37:106:30
2211.37:106:30
2311.47:096:30
2411.47:086:31
2511.47:076:31
2611.47:066:31
2711.47:056:32
2811.57:046:32
2911.57:036:32
3011.57:026:33
3111.57:016:33

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.39 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 — August's 4.39 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.0Moderate
24.0Moderate
34.0Bright
44.0Bright
54.1Bright
64.1Bright
74.1Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.4Bright
174.4Bright
184.4Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.6Bright
244.6Bright
254.6Bright
264.7Bright
274.7Bright
284.7Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in August

Hazard calendar for Macaé

In seasonPeak

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

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 August a good time to visit Macaé?

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

7.8
Sightseeing
3rd-best month of the year
6.3
Beach & pool
7th-best month of the year

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

What to pack for Macaé in August

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

In August, Macaé sees daytime highs around 24°C and nights near 20°C. Worth packing: light clothes. About 7 days see rain.

light clothes

Sea temperature near Macaé in August

The nearest coast averages about 22°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 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 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 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
August 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).