Barra Mansa weather in October

In October, Barra Mansa sees average daytime highs of 27°C and overnight lows near 17°C, with 117 mm of rain across 14.7 wet days and about 12.5 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 19% of the time in October, and the air most often feels humid.

Daylight stretches from about 12 h 12 min at the start of October to 12 h 48 min by month's end. Set against the rest of the year, October is Barra Mansa's 9th-clearest and 2nd-windiest month. For the whole year in context, see Barra Mansa's year-round climate.

Daytime high
27°
7th warmest
Overnight low
17°
6th coldest
Rainfall
117 mm
14.7 wet days
Daylight
12 h 30 min
6:26 AM – 6:58 PM
Cloud cover
70%
9th clearest
Wind
6 km/h
2nd windiest
Solar energy
5.02 kWh/m²
Travel score
5.7
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 October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical October day in Barra Mansa reaches about 27°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 32°C. Set against its neighbours, October runs on par with September and on par with November.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12616
22617
32617
42617
52617
62617
72617
82717
92717
102717
112717
122717
132717
142717
152717
162718
172718
182718
192718
202718
212718
222718
232718
242718
252718
262718
272718
282718
292718
302718
312718

Barra Mansa weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 6th-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 68%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33367
43466
53367
63367
73466
83466
93466
103466
113565
123466
133565
143466
153466
163367
173367
183367
193268
203367
213268
223169
233169
243169
253070
263070
273070
282872
292872
302773
312773

Chance of precipitation in October

Any precipitation

Barra Mansa gets around 117 mm of rain over 14.7 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 48% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
145
245
345
445
544
644
744
843
943
1044
1144
1244
1345
1445
1546
1646
1747
1848
1948
2049
2150
2251
2351
2452
2553
2653
2754
2854
2955
3056
3156

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the humid band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 32% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
192843190
292843200
392743210
492643220
592543230
682543230
782443240
882343250
982343260
1082243270
1172143280
1272143290
1362044300
1462044310
1551944310
1651944320
1741944330
1831844340
1931844350
2021744360
2121744370
2221744380
2311744380
2411743390
2511743390
2621642390
2721642400
2821641410
2921541410
3021540421
3121540431

Wind in October

Winds average 6 km/h in October.

Across October, daily wind ranges from about 6 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 12 min at the start of October to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over October. Sunrise moves from 6:39 AM to 6:15 AM, and sunset from 6:52 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:396:52
212.26:396:52
312.36:386:53
412.36:376:53
512.36:366:53
612.36:356:54
712.36:346:54
812.46:336:54
912.46:326:55
1012.46:316:55
1112.46:306:56
1212.46:296:56
1312.56:286:56
1412.56:276:57
1512.56:276:57
1612.56:266:58
1712.66:256:58
1812.66:246:59
1912.66:236:59
2012.66:236:59
2112.66:227:00
2212.76:217:00
2312.76:207:01
2412.76:207:01
2512.76:197:02
2612.76:187:02
2712.86:187:03
2812.86:177:04
2912.86:167:04
3012.86:167:05
3112.86:157:05

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.02 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 — October's 5.02 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.9Bright
84.9Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in October

Hazard calendar for Barra Mansa

In seasonPeak

None of Barra Mansa's seasonal hazards are active in October. 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 October a good time to visit Barra Mansa?

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

5.7
Sightseeing
7th-best month of the year
5.7
Beach & pool
7th-best month of the year

October is a reasonable time to visit Barra Mansa for sightseeing.

What to pack for Barra Mansa in October

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

In October, Barra Mansa sees daytime highs around 27°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 15 days see rain.

rain gearlight clothessun protection

Sea temperature near Barra Mansa in October

The nearest coast averages about 23°C in October — 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 October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 12 (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 October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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
October 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).