Barra Mansa climate — normals and trends

Q: What is the climate of Barra Mansa?

Barra Mansa has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.7 °C and it receives 1,632 mm of precipitation per year.

Q: What is the hottest day ever recorded in Barra Mansa?

The hottest day measured in Barra Mansa between 1940 and 2025 was 18 November 2023, reaching 37.0 °C.

Q: What is the coldest day in Barra Mansa?

The coldest day measured in Barra Mansa between 1940 and 2025 was 27 June 1994, at 3.9 °C.

Q: Does it snow in Barra Mansa?

Almost never: Barra Mansa sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Barra Mansa warmed?

Yes: Barra Mansa warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Barra Mansa?

The wettest day measured in Barra Mansa between 1940 and 2025 was 14 April 1989, with 134 mm of rain in 24 hours.

Q: What was the windiest day in Barra Mansa?

The windiest day measured in Barra Mansa between 1940 and 2025 was 22 September 2025, with winds reaching 23.5 km/h.

Q: What is the warmest month in Barra Mansa?

The warmest month in Barra Mansa is February (23.5 °C on average); the coldest is July (17.3 °C).

Q: How much does it rain in Barra Mansa?

Barra Mansa receives on average 1,632 mm of precipitation per year, spread over about 173 rainy days.

Q: Is it sunny in Barra Mansa?

Barra Mansa gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Barra Mansa (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 20.7 °C and it receives 1,632 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is February (23.5 °C on average) and the coldest is July (17.3 °C). Rainfall peaks in January.

Barra Mansa averages 0 frost days, 49 hot days (≥ 30 °C) and 173 rainy days per year.

Barra Mansa has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.

The hottest day of the period reached 37.0 °C (on 18 November 2023) and the coldest 3.9 °C (on 27 June 1994).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

Barra MansaRio de Janeiro

coords: -22.54°, -44.17°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthFebruaryColdest monthJulyWettest monthJanuaryDriest monthJuly

Mean daily temperature

20.7°C

Average daily high

25.7°C

Average daily low

16.5°C

Annual rainfall

1,632mm

Sunshine / day

9.1h

Mean relative humidity

80%

Average peak wind

8.8km/h

Seasonal range

6.2°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

49 d/yr

Rainy days (≥ 1 mm)

173 d/yr

Annual snowfall

0.0 cm

Average feels-like high

28.3 °C

Average feels-like low

17.8 °C

Average peak gust

24.4 km/h

Tropical nights (≥ 20 °C)

47 d/yr

Solar radiation

16.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.59 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

37.0 °C

18 November 2023

Coldest day

3.9 °C

27 June 1994

Wettest day

134 mm

14 April 1989

Windiest day

23.5 km/h

22 September 2025

Strongest gust

66.2 km/h

17 October 1998

Hottest feels-like

42.0 °C

17 January 1995

Coldest feels-like

2.0 °C

27 June 1994

Sunniest day

13.4 h

26 December 1946

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	35.0 °C17 February 2025	8.2 °C17 July 2025	21.0 °C	956 mm	77
2024	34.8 °C2 October 2024	6.6 °C14 August 2024	21.7 °C	1,282 mm	102
2023	37.0 °C18 November 2023	8.1 °C6 July 2023	21.6 °C	1,374 mm	92
2022	33.3 °C10 September 2022	7.6 °C18 May 2022	20.6 °C	1,625 mm	55
2021	34.4 °C14 September 2021	5.4 °C1 July 2021	20.6 °C	1,371 mm	49
2020	35.9 °C2 October 2020	6.0 °C27 May 2020	21.0 °C	1,644 mm	65
2019	35.1 °C24 February 2019	7.5 °C12 July 2019	21.8 °C	1,359 mm	84
2018	34.1 °C18 January 2018	7.7 °C21 May 2018	21.6 °C	1,374 mm	67
2017	33.9 °C13 October 2017	9.1 °C11 June 2017	21.4 °C	1,133 mm	83
2016	34.1 °C10 February 2016	6.7 °C14 June 2016	21.5 °C	1,461 mm	99
2015	35.8 °C24 September 2015	10.3 °C27 June 2015	22.1 °C	1,342 mm	99
2014	35.1 °C3 January 2014	7.5 °C8 August 2014	21.6 °C	1,007 mm	103
2013	34.8 °C11 November 2013	8.1 °C8 July 2013	20.9 °C	1,740 mm	62
2012	35.6 °C19 September 2012	7.7 °C21 July 2012	21.3 °C	1,203 mm	66
2011	33.6 °C10 February 2011	7.1 °C6 June 2011	20.7 °C	1,401 mm	68
2010	34.9 °C8 February 2010	7.6 °C13 June 2010	21.3 °C	1,514 mm	93
2009	33.8 °C2 March 2009	7.4 °C4 June 2009	21.4 °C	2,024 mm	68
2008	34.0 °C26 October 2008	6.3 °C15 July 2008	20.7 °C	1,898 mm	55
2007	34.5 °C30 December 2007	6.9 °C30 July 2007	21.4 °C	1,386 mm	81
2006	35.1 °C25 January 2006	10.1 °C6 September 2006	21.2 °C	1,457 mm	62
2005	35.6 °C14 October 2005	7.5 °C10 July 2005	21.3 °C	1,662 mm	57
2004	33.5 °C31 October 2004	8.1 °C24 July 2004	20.7 °C	1,697 mm	44
2003	35.3 °C16 December 2003	9.2 °C19 August 2003	21.3 °C	1,476 mm	69
2002	34.5 °C16 October 2002	9.6 °C3 September 2002	21.9 °C	1,246 mm	83
2001	32.3 °C11 February 2001	9.4 °C15 July 2001	21.2 °C	1,352 mm	62
2000	33.7 °C12 October 2000	5.2 °C18 July 2000	20.7 °C	1,424 mm	54
1999	34.0 °C2 February 1999	7.6 °C16 August 1999	20.3 °C	1,502 mm	40
1998	35.2 °C31 January 1998	7.5 °C10 June 1998	21.1 °C	1,516 mm	66
1997	34.3 °C9 September 1997	6.9 °C9 June 1997	21.3 °C	1,545 mm	82
1996	34.4 °C25 January 1996	7.3 °C24 July 1996	20.6 °C	2,152 mm	72
1995	35.7 °C17 January 1995	8.3 °C7 June 1995	21.2 °C	1,997 mm	73
1994	34.9 °C3 October 1994	3.9 °C27 June 1994	21.4 °C	1,610 mm	86
1993	35.2 °C17 November 1993	7.9 °C23 June 1993	21.3 °C	1,488 mm	79
1992	33.4 °C22 February 1992	9.1 °C27 July 1992	21.1 °C	1,595 mm	44
1991	32.4 °C26 November 1991	8.9 °C17 August 1991	21.0 °C	1,568 mm	33
1990	33.2 °C25 January 1990	5.7 °C23 June 1990	21.1 °C	1,539 mm	55
1989	32.4 °C24 September 1989	6.9 °C22 July 1989	20.6 °C	1,670 mm	23
1988	33.4 °C27 September 1988	4.5 °C6 June 1988	20.7 °C	1,785 mm	46
1987	33.5 °C9 January 1987	6.0 °C26 June 1987	21.2 °C	1,378 mm	67
1986	33.2 °C7 October 1986	6.5 °C13 July 1986	21.1 °C	1,528 mm	48
1985	33.3 °C27 August 1985	5.1 °C9 June 1985	20.6 °C	1,633 mm	30
1984	33.8 °C13 January 1984	8.0 °C1 August 1984	21.3 °C	1,439 mm	52
1983	32.9 °C17 February 1983	6.2 °C7 August 1983	20.9 °C	2,228 mm	32
1982	32.8 °C4 November 1982	9.5 °C1 August 1982	20.7 °C	1,904 mm	25
1981	33.8 °C20 September 1981	5.2 °C22 July 1981	20.5 °C	1,530 mm	39
1980	33.5 °C27 October 1980	7.2 °C30 June 1980	20.9 °C	1,436 mm	41
1979	32.6 °C18 November 1979	4.7 °C1 June 1979	20.3 °C	1,755 mm	33
1978	34.3 °C25 October 1978	6.2 °C16 August 1978	20.6 °C	1,440 mm	41
1977	33.9 °C28 February 1977	9.7 °C21 May 1977	21.3 °C	1,532 mm	51
1976	33.3 °C19 January 1976	7.6 °C6 July 1976	20.3 °C	1,947 mm	25
1975	32.9 °C9 December 1975	5.8 °C8 July 1975	20.4 °C	1,813 mm	36
1974	33.2 °C26 September 1974	7.4 °C6 July 1974	20.5 °C	1,611 mm	35
1973	35.4 °C11 February 1973	6.3 °C22 June 1973	21.2 °C	1,677 mm	51
1972	33.5 °C27 October 1972	6.4 °C23 June 1972	20.7 °C	1,726 mm	44
1971	33.5 °C25 January 1971	7.5 °C20 July 1971	20.4 °C	1,385 mm	47
1970	32.5 °C8 March 1970	8.5 °C6 July 1970	20.5 °C	1,115 mm	36
1969	33.3 °C15 February 1969	8.4 °C27 July 1969	20.6 °C	1,584 mm	40
1968	33.9 °C15 December 1968	7.3 °C29 June 1968	19.5 °C	1,005 mm	29
1967	32.2 °C20 September 1967	7.7 °C10 June 1967	20.8 °C	2,064 mm	28
1966	32.5 °C22 January 1966	8.6 °C25 May 1966	20.2 °C	1,934 mm	45
1965	32.2 °C3 September 1965	7.6 °C13 July 1965	20.0 °C	1,959 mm	24
1964	31.6 °C18 February 1964	5.9 °C29 July 1964	19.3 °C	1,903 mm	11
1963	34.7 °C1 November 1963	8.2 °C2 July 1963	20.6 °C	1,397 mm	63
1962	31.1 °C8 September 1962	6.4 °C19 June 1962	19.3 °C	2,348 mm	6
1961	36.9 °C28 September 1961	9.9 °C16 July 1961	21.0 °C	1,775 mm	61
1960	35.5 °C25 September 1960	5.7 °C15 July 1960	19.7 °C	1,726 mm	24
1959	32.6 °C7 September 1959	8.6 °C13 June 1959	20.5 °C	1,476 mm	37
1958	33.2 °C15 November 1958	7.6 °C22 June 1958	20.3 °C	1,517 mm	43
1957	33.4 °C19 October 1957	5.3 °C23 July 1957	20.0 °C	1,572 mm	14
1956	34.4 °C2 February 1956	7.1 °C18 August 1956	19.5 °C	1,240 mm	49
1955	35.0 °C1 October 1955	8.2 °C15 July 1955	20.0 °C	1,295 mm	52
1954	34.3 °C19 September 1954	9.2 °C30 August 1954	20.3 °C	2,231 mm	28
1953	32.0 °C22 August 1953	7.1 °C29 July 1953	20.2 °C	1,731 mm	19
1952	32.8 °C4 September 1952	7.2 °C17 July 1952	20.0 °C	2,116 mm	19
1951	33.9 °C23 November 1951	7.2 °C4 June 1951	19.7 °C	1,581 mm	30
1950	32.3 °C18 September 1950	7.5 °C14 July 1950	19.9 °C	1,748 mm	25
1949	32.0 °C18 March 1949	8.4 °C4 July 1949	19.6 °C	1,985 mm	12
1948	35.5 °C27 September 1948	8.6 °C6 June 1948	20.1 °C	1,514 mm	44
1947	33.3 °C8 January 1947	5.7 °C4 August 1947	19.6 °C	1,944 mm	23
1946	31.8 °C2 November 1946	8.3 °C26 July 1946	20.5 °C	2,262 mm	29
1945	31.7 °C28 September 1945	8.3 °C14 July 1945	20.3 °C	2,149 mm	17
1944	33.6 °C7 September 1944	7.7 °C13 July 1944	20.0 °C	2,019 mm	23
1943	30.6 °C19 January 1943	9.2 °C25 July 1943	19.0 °C	1,583 mm	4
1942	34.4 °C6 October 1942	4.6 °C26 June 1942	19.4 °C	1,514 mm	22
1941	33.2 °C12 January 1941	8.7 °C9 June 1941	20.1 °C	2,290 mm	17
1940	32.4 °C12 September 1940	10.2 °C10 July 1940	20.4 °C	2,456 mm	18

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

26.3 °C

+0.6 °C

Hot days (≥ 30 °C)

77 d/yr

+28

Frost days (< 0 °C)

0 d/yr

Annual rainfall

956 mm

-676 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.6 °C	+0.4 °C	191 mm	-81 mm
Feb	31.4 °C	+3.0 °C	27 mm	-190 mm
Mar	28.6 °C	+1.1 °C	124 mm	-83 mm
Apr	25.8 °C	0.0 °C	93 mm	-7 mm
May	24.7 °C	+0.8 °C	29 mm	-23 mm
Jun	23.8 °C	+0.7 °C	20 mm	-13 mm
Jul	22.1 °C	-0.8 °C	18 mm	-11 mm
Aug	24.3 °C	-0.1 °C	11 mm	-24 mm
Sep	25.4 °C	0.0 °C	53 mm	-20 mm
Oct	25.7 °C	-0.2 °C	118 mm	-26 mm
Nov	26.4 °C	+0.3 °C	141 mm	-68 mm
Dec	29.6 °C	+2.5 °C	131 mm	-131 mm

The year's extremes

Hottest day

35.0 °C

17 Feb 2025

Coldest day

8.2 °C

17 Jul 2025

Wettest day

36.4 mm

17 Dec 2025

Windiest day

23.5 km/h

22 Sep 2025

Strongest gust

58.0 km/h

22 Sep 2025

Hottest feels-like

39.7 °C

28 Dec 2025

Coldest feels-like

7.1 °C

17 Jul 2025

Sunniest day

13.4 h

23 Dec 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Barra Mansa?

Barra Mansa has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.7 °C and it receives 1,632 mm of precipitation per year.

What is the hottest day ever recorded in Barra Mansa?

The hottest day measured in Barra Mansa between 1940 and 2025 was 18 November 2023, reaching 37.0 °C.

What is the coldest day in Barra Mansa?

The coldest day measured in Barra Mansa between 1940 and 2025 was 27 June 1994, at 3.9 °C.

Does it snow in Barra Mansa?

Almost never: Barra Mansa sees virtually no snow, with about 0 frost days per year.

Has the climate of Barra Mansa warmed?

Yes: Barra Mansa warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Barra Mansa?

The wettest day measured in Barra Mansa between 1940 and 2025 was 14 April 1989, with 134 mm of rain in 24 hours.

What was the windiest day in Barra Mansa?

The windiest day measured in Barra Mansa between 1940 and 2025 was 22 September 2025, with winds reaching 23.5 km/h.

What is the warmest month in Barra Mansa?

The warmest month in Barra Mansa is February (23.5 °C on average); the coldest is July (17.3 °C).

How much does it rain in Barra Mansa?

Barra Mansa receives on average 1,632 mm of precipitation per year, spread over about 173 rainy days.

Is it sunny in Barra Mansa?

Barra Mansa gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Are there tropical nights in Barra Mansa?

Yes: Barra Mansa has on average 47 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Barra Mansa?

In Barra Mansa, between 1940 and 2025, the highest apparent temperature reached 42.0 °C on 17 January 1995, and the lowest was 2.0 °C on 27 June 1994.

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