Angra dos Reis weather in August

In August, Angra dos Reis sees average daytime highs of 23°C and overnight lows near 17°C, with 57 mm of rain across 8.5 wet days and about 11.2 hours of daylight. It is the 10th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 47% of the time in August, and the air most often feels humid.

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 Angra dos Reis's 1st-clearest and 3rd-windiest month. For the whole year in context, see Angra dos Reis's year-round climate.

Daytime high
23°
10th warmest
Overnight low
17°
2nd coldest
Rainfall
57 mm
8.5 wet days
Daylight
11 h 12 min
7:25 AM – 6:37 PM
Cloud cover
46%
1st clearest
Wind
9 km/h
3rd windiest
Solar energy
4.28 kWh/m²
Travel score
7.2
out of 10

Angra dos Reis is human settlement in Brazil.

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 23°C through the month.

A typical August day in Angra dos Reis reaches about 23°C in the afternoon and slips back to 17°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 27°C. Set against its neighbours, August runs on par with July and on par with September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12217
22217
32217
42317
52317
62317
72317
82317
92317
102317
112317
122317
132317
142317
152317
162317
172317
182317
192317
202317
212317
222317
232317
242317
252317
262317
272317
282317
292317
302317
312317

Angra dos Reis weather by month

How August compares with the rest of the year at a glance. August is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 22°30224.213.34.3
Feb27° / 23°2192012.84.6
Mar27° / 22°23222.912.24.7
Apr25° / 21°13515.711.55.9
May23° / 18°9512.410.96.6
Jun23° / 17°598.410.67.2
Jul22° / 17°648.910.77.1
Aug23° / 17°578.511.27.2
Sep23° / 18°10413.311.96.4
Oct24° / 19°13616.612.55.8
Nov24° / 20°20320.313.15.1
Dec26° / 21°24422.713.44.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26139
36139
46139
56139
66139
76139
86139
96139
106139
116040
126139
136139
146139
156139
166040
176040
186040
196040
206040
216040
226040
236040
246040
256040
266040
275941
285941
295941
305842
315842

Chance of precipitation in August

Any precipitation

Angra dos Reis gets around 57 mm of rain over 8.5 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 28% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
326
426
526
626
726
826
927
1027
1127
1227
1327
1427
1527
1628
1728
1828
1928
2028
2128
2229
2329
2429
2530
2630
2731
2831
2932
3032
3133

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11035523
21035523
31035523
41035514
51035514
61035514
71034515
81034515
91034515
101033516
111133506
121133506
131133506
141133506
151133496
161134496
171034496
181034507
191033507
20933517
21933517
22832537
23831547
24731557
25730567
26629578
27629578
28629569
29528589
305285710
315275711

Wind in August

Winds average 9 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 7:35 AM to 7:12 AM, and sunset from 6:31 PM to 6:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.97:356:31
210.97:356:32
311.07:346:32
411.07:346:32
511.07:336:33
611.07:336:33
711.07:326:34
811.07:316:34
911.17:316:35
1011.17:306:35
1111.17:296:35
1211.17:286:36
1311.17:286:36
1411.27:276:37
1511.27:266:37
1611.27:256:37
1711.27:256:38
1811.27:246:38
1911.37:236:38
2011.37:226:39
2111.37:216:39
2211.37:206:40
2311.37:196:40
2411.47:196:40
2511.47:186:41
2611.47:176:41
2711.47:166:41
2811.47:156:42
2911.57:146:42
3011.57:136:42
3111.57:126:43

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.28 kWh/m².

For context, solar energy here swings from a low near 3.39 kWh/m² to a high of 5.9 kWh/m² in February across the year — August's 4.28 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.9Moderate
33.9Moderate
43.9Moderate
54.0Moderate
64.0Moderate
74.0Bright
84.0Bright
94.1Bright
104.1Bright
114.1Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.4Bright
214.4Bright
224.4Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in August

Hazard calendar for Angra dos Reis

In seasonPeak

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

Angra dos Reis's rainy season runs October–March, 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 Angra dos Reis?

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

7.2
Sightseeing
1st-best month of the year
5.4
Beach & pool
1st-best month of the year

August is one of the better times to visit Angra dos Reis for general sightseeing.

What to pack for Angra dos Reis in August

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

In August, Angra dos Reis sees daytime highs around 23°C and nights near 17°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Angra dos Reis 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 14 km away) is warmest in February at about 27°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°28°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar27Warm
Apr26Warm
May24Warm
Jun23Refreshing
Jul22Refreshing
Aug21Refreshing
Sep22Refreshing
Oct23Refreshing
Nov23Refreshing
Dec25Warm

UV index in Angra dos Reis in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Angra dos Reis peaks around February 8 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 8UV 14Jul 12UV 5
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug7Very high
Sep7High
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Angra dos Reis in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Angra dos Reis is worst in September — around 26 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (February, 13 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1625 µg/m³Feb 1713 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar14Moderate
Apr15Moderate
May20Moderate
Jun24Moderate
Jul26Moderate
Aug23Moderate
Sep26Moderate
Oct17Moderate
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Angra dos Reis?

Angra dos Reis sits at 23.0°S, 44.3°W, 8 m above sea level, in Brazil. The nearest listed city is Mangaratiba, 29 km away.

Topography around Angra dos Reis

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

Within 3 km, the terrain around Angra dos Reis has significant variations in elevation — a maximum elevation change of 519 m around an average of 82 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,664 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,745 m.

The land around Angra dos Reis is covered by trees (46%) and water (37%) within 3 km, water (48%) and trees (45%) within 16 km, and trees (37%), water (36%) and grassland (25%) within 80 km.

3 km
519 m
16 km
1,664 m
80 km
2,745 m
treesgrasslandartificial surfaceswatermangroves
August weather nearby: Mangaratiba 29 km · Rio Claro 37 km · Paraty 47 km · Barra Mansa 54 km · Volta Redonda 58 km · Itaguaí 58 km · Piraí 60 km · Resende 61 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 Angra dos Reis (-23.0067°, -44.3181°, 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).