Barra Mansa climate

Name: Barra Mansa
Address: BR

Barra Mansa is warmest in February, with average highs of 29 °C, and coldest in July, when nights average 13 °C. January is the wettest month (278 mm) and August the driest (27 mm). Figures are 1991–2020 climate normals.

Across a full year Barra Mansa averages 1,542 mm of rain and 238 days above 25 °C.

Brazil · population 181,679 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month February 29 °C
Coldest month July 13 °C
Driest month August 27 mm
Wettest month January 278 mm
Least cloud August 47 % cloud
Hottest on record October 37 °C
Coldest on record June 5.1 °C

What to expectBarra Mansa through the year

Barra Mansa has a clear annual cycle: average daily highs run from 24 °C in July to 29 °C in February, a swing of 6.2 °C in mean temperature across the year.

Counted across a normal year, 238 days a year reach 25 °C, 66 of them reach 30 °C. The warmest reading in the 1991–2020 record is 37 °C, in October.

Rain is strongly seasonal. January averages 278 mm against 27 mm in August — 10 times as much. Planning around the dry months matters more here than planning around temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.7 °C	278 mm	76 %
February	29.2 °C	213 mm	69 %
March	27.8 °C	195 mm	70 %
April	26.3 °C	89 mm	62 %
May	24.2 °C	49 mm	58 %
June	23.8 °C	28 mm	51 %
July	23.6 °C	28 mm	48 %
August	25.0 °C	27 mm	47 %
September	26.3 °C	68 mm	60 %
October	27.1 °C	118 mm	72 %
November	26.7 °C	206 mm	78 %
December	28.0 °C	244 mm	77 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	28.7 °C	20.2 °C	24.0 °C	36.5 °C	14.8 °C	27	12
February	29.2 °C	20.1 °C	24.2 °C	36.7 °C	15.0 °C	26	12
March	27.8 °C	19.6 °C	23.2 °C	33.8 °C	14.8 °C	26	7
April	26.3 °C	18.2 °C	21.8 °C	32.8 °C	9.4 °C	21	3
May	24.2 °C	15.5 °C	19.4 °C	30.6 °C	8.5 °C	13	0
June	23.8 °C	13.9 °C	18.4 °C	30.8 °C	5.1 °C	12	0
July	23.6 °C	13.3 °C	18.0 °C	30.2 °C	6.9 °C	13	0
August	25.0 °C	14.1 °C	19.0 °C	33.8 °C	8.0 °C	17	2
September	26.3 °C	15.9 °C	20.5 °C	36.9 °C	9.4 °C	18	7
October	27.1 °C	17.6 °C	21.8 °C	37.2 °C	10.7 °C	21	9
November	26.7 °C	18.5 °C	22.1 °C	35.1 °C	10.9 °C	20	6
December	28.0 °C	19.7 °C	23.4 °C	35.1 °C	12.6 °C	25	9

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind
January	278 mm	22	13 h/day	76 %	81 %	9.2 km/h
February	213 mm	17	13 h/day	69 %	80 %	9.1 km/h
March	195 mm	20	12 h/day	70 %	83 %	8.8 km/h
April	89 mm	12	12 h/day	62 %	81 %	8.9 km/h
May	49 mm	9	11 h/day	58 %	80 %	8.7 km/h
June	28 mm	5	11 h/day	51 %	79 %	8.6 km/h
July	28 mm	5	11 h/day	48 %	77 %	9.0 km/h
August	27 mm	5	11 h/day	47 %	74 %	10 km/h
September	68 mm	10	12 h/day	60 %	74 %	11 km/h
October	118 mm	14	13 h/day	72 %	77 %	11 km/h
November	206 mm	19	13 h/day	78 %	81 %	11 km/h
December	244 mm	21	14 h/day	77 %	81 %	9.7 km/h

How Barra Mansa compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Barra Mansa	29 °C	13 °C	1,542 mm	238
Volta Redonda · Brazil	30 °C	13 °C	1,497 mm	245
Angra dos Reis · Brazil	30 °C	18 °C	1,966 mm	244
Nova Iguaçu · Brazil	32 °C	16 °C	1,386 mm	277
São João de Meriti · Brazil	32 °C	16 °C	1,633 mm	279
Duque de Caxias · Brazil	31 °C	16 °C	1,613 mm	271
Barra da Tijuca · Brazil	31 °C	17 °C	1,091 mm	277

Where Barra Mansa ranks

Ranking	Position	Value
Places with the best weather in South America in July	43rd of 50	94/100
Places with the best weather in South America in June	46th of 50	93/100
Places with the best weather in South America in August	47th of 50	92/100

Planning a trip? See the best time to visit Barra Mansa.

QuestionsCommon questions about Barra Mansa’s climate

When is the best time to visit Barra Mansa?

That depends on what you want, so the honest answer is a comparison rather than a single month. May, August, September sit closest to 20 °C on average, February is the warmest month and August the driest. The month-by-month table above has the full picture.

How hot does Barra Mansa get?

In February, the warmest month, daily highs average 29 °C. About 66 days a year pass 30 °C. The highest value in the 1991–2020 record is 37 °C.

How cold does it get in winter?

Nights average 13 °C in July, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Barra Mansa?

January, averaging 278 mm over 22 days with rain. The driest month is August with 27 mm. The year as a whole averages 1,542 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Barra Mansa rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: -22.544°, -44.171° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.