Barra Mansa weather in August

In August, Barra Mansa sees average daytime highs of 25°C and overnight lows near 14°C, with 27 mm of rain across 5.3 wet days and about 11.2 hours of daylight. It is the 9th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 49% of the time in August, and the air most often feels comfortable.

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 Barra Mansa's 1st-clearest and 4th-windiest month. For the whole year in context, see Barra Mansa's year-round climate.

Daytime high
25°
9th warmest
Overnight low
14°
3rd coldest
Rainfall
27 mm
5.3 wet days
Daylight
11 h 12 min
7:24 AM – 6:37 PM
Cloud cover
45%
1st clearest
Wind
5 km/h
4th windiest
Solar energy
4.36 kWh/m²
Travel score
7.8
out of 10

Barra Mansa is human settlement in Brazil.

Air quality
Moderate
PM10 30.1 µg/m³ · 2019

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 25°C through the month.

A typical August day in Barra Mansa reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 29°C. Set against its neighbours, August runs about 1°C warmer than July and about 1°C cooler than September.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12413
22413
32413
42413
52413
62413
72413
82513
92513
102513
112513
122513
132513
142513
152514
162514
172514
182514
192514
202514
212514
222514
232514
242514
252514
262514
272614
282614
292614
302614
312614

Barra Mansa weather by month

How August compares with the rest of the year at a glance. August is the 9th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°28222.113.23.9
Feb29° / 20°20517.512.84.2
Mar28° / 19°19420.212.24.6
Apr27° / 18°8611.711.56.2
May25° / 15°488.410.97.2
Jun24° / 14°275.310.67.9
Jul24° / 13°285.310.88.0
Aug25° / 14°275.311.27.8
Sep26° / 16°6910.711.96.6
Oct27° / 17°11714.712.55.7
Nov27° / 18°2041913.14.9
Dec28° / 20°24921.313.44.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% 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 39%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26238
36238
46238
56139
66139
76139
86238
96139
106139
116139
126040
136040
146139
156139
166139
176139
186139
196238
206238
216238
226238
236238
246238
256238
266238
276238
286238
296238
306238
316139

Chance of precipitation in August

Any precipitation

Barra Mansa gets around 27 mm of rain over 5.3 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 18% and peaks near 25% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
115
215
315
415
515
615
715
815
915
1015
1116
1216
1316
1416
1517
1617
1717
1818
1918
2018
2119
2219
2320
2420
2521
2621
2722
2823
2924
3024
3125

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13948140
23947140
33947140
43947140
53946150
63946150
73946150
83946150
93945160
103845160
113845160
123845161
133845161
143845171
153845171
163844171
173844171
183844171
193744181
203645181
213545191
223445201
233346201
243246211
253146221
263047221
272947231
282847241
292847251
302747251
312647261

Wind in August

Winds average 5 km/h in August.

Across August, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 7:34 AM to 7:11 AM, and sunset from 6:31 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:346:31
211.07:346:32
311.07:336:32
411.07:336:33
511.07:326:33
611.07:316:33
711.17:316:34
811.17:306:34
911.17:296:35
1011.17:296:35
1111.17:286:35
1211.17:276:36
1311.27:276:36
1411.27:266:37
1511.27:256:37
1611.27:246:37
1711.27:246:38
1811.37:236:38
1911.37:226:38
2011.37:216:39
2111.37:206:39
2211.37:196:39
2311.47:186:40
2411.47:186:40
2511.47:176:40
2611.47:166:41
2711.47:156:41
2811.57:146:41
2911.57:136:42
3011.57:126:42
3111.57:116:42

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.36 kWh/m².

For context, solar energy here swings from a low near 3.47 kWh/m² to a high of 5.62 kWh/m² in February across the year — August's 4.36 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.9Moderate
24.0Moderate
34.0Bright
44.0Bright
54.0Bright
64.1Bright
74.1Bright
84.1Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.4Bright
194.4Bright
204.4Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in August

Hazard calendar for Barra Mansa

In seasonPeak

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

Barra Mansa's monsoon runs November–March, when most of the year's rain falls.

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

Is August a good time to visit Barra Mansa?

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
7.0
Beach & pool
1st-best month of the year

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

What to pack for Barra Mansa in August

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

In August, Barra Mansa sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes. About 5 days see rain.

light clothes

Sea temperature near Barra Mansa 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 68 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 Barra Mansa in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Barra Mansa peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 24UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr10Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep7High
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Barra Mansa 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 Barra Mansa is worst in September — around 33 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 15 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1332 µg/m³Dec 2115 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar17Moderate
Apr19Moderate
May24Moderate
Jun29Moderate
Jul31Moderate
Aug27Moderate
Sep33Moderate
Oct20Moderate
Nov17Moderate
Dec15Moderate
Location & terrain

Where is Barra Mansa?

Barra Mansa sits at 22.5°S, 44.2°W, 380 m above sea level, in Brazil. The nearest listed city is Volta Redonda, 7.0 km away.

Topography around Barra Mansa

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

Within 3 km, the terrain around Barra Mansa has only modest variations in elevation — a maximum elevation change of 185 m around an average of 427 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 415 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,761 m.

The land around Barra Mansa is covered by trees (36%), grassland (31%) and artificial surfaces (30%) within 3 km, grassland (59%) and trees (33%) within 16 km, and trees (48%) and grassland (36%) within 80 km.

3 km
185 m
16 km
415 m
80 km
2,761 m
treesgrasslandartificial surfaceswater
August weather nearby: Volta Redonda 7.0 km · Pinheiral 18 km · Porto Real 18 km · Rio Claro 20 km · Resende 29 km · Piraí 30 km · Barra do Piraí 36 km · Itatiaia 41 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 Barra Mansa (-22.5442°, -44.1714°, elevation 380 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).