Barras climate — normals and trends

Q: What is the climate of Barras?

Barras has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.4 °C and it receives 1,549 mm of precipitation per year.

Q: What is the hottest day ever recorded in Barras?

The hottest day measured in Barras between 1940 and 2025 was 20 November 2005, reaching 41.3 °C.

Q: What is the coldest day in Barras?

The coldest day measured in Barras between 1940 and 2025 was 27 July 2020, at 18.7 °C.

Q: Does it snow in Barras?

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

Q: Has the climate of Barras warmed?

Yes: Barras warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Barras?

The wettest day measured in Barras between 1940 and 2025 was 24 January 1985, with 332 mm of rain in 24 hours.

Q: What was the windiest day in Barras?

The windiest day measured in Barras between 1940 and 2025 was 17 July 1947, with winds reaching 29.9 km/h.

Q: What is the warmest month in Barras?

The warmest month in Barras is October (30.8 °C on average); the coldest is March (26.3 °C).

Q: How much does it rain in Barras?

Barras receives on average 1,549 mm of precipitation per year, spread over about 130 rainy days.

Q: Is it sunny in Barras?

Barras gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.

Barras (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 28.4 °C and it receives 1,549 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 October (30.8 °C on average) and the coldest is March (26.3 °C). Rainfall peaks in March.

Barras averages 0 frost days, 330 hot days (≥ 30 °C) and 130 rainy days per year.

Barras has warmed by +0.8 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.

The hottest day of the period reached 41.3 °C (on 20 November 2005) and the coldest 18.7 °C (on 27 July 2020).

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

BarrasPiauí

coords: -4.24°, -42.29°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthOctoberColdest monthMarchWettest monthMarchDriest monthAugust

Mean daily temperature

28.4°C

Average daily high

33.7°C

Average daily low

23.9°C

Annual rainfall

1,549mm

Sunshine / day

10.9h

Mean relative humidity

66%

Average peak wind

14.3km/h

Seasonal range

4.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

330 d/yr

Rainy days (≥ 1 mm)

130 d/yr

Annual snowfall

0.0 cm

Average feels-like high

37.3 °C

Average feels-like low

27.3 °C

Average peak gust

32.7 km/h

Tropical nights (≥ 20 °C)

364 d/yr

Solar radiation

20.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.8 °C

since 1940

+0.1 °C per decade · r² = 0.14 · 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

41.3 °C

20 November 2005

Coldest day

18.7 °C

27 July 2020

Wettest day

332 mm

24 January 1985

Windiest day

29.9 km/h

17 July 1947

Strongest gust

58.3 km/h

17 July 1947

Hottest feels-like

44.1 °C

14 October 2018

Coldest feels-like

18.9 °C

4 July 1974

Sunniest day

12.1 h

21 November 1989

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	39.4 °C12 October 2025	21.3 °C27 July 2025	28.9 °C	1,048 mm	352
2024	38.7 °C27 December 2024	19.4 °C26 July 2024	28.6 °C	1,309 mm	357
2023	39.4 °C28 October 2023	20.7 °C18 August 2023	28.3 °C	1,335 mm	340
2022	38.4 °C29 October 2022	19.9 °C15 June 2022	27.8 °C	1,589 mm	353
2021	38.1 °C27 September 2021	21.1 °C19 August 2021	28.5 °C	1,361 mm	348
2020	38.8 °C21 October 2020	18.7 °C27 July 2020	28.4 °C	1,809 mm	347
2019	40.0 °C25 October 2019	21.3 °C11 August 2019	28.8 °C	1,640 mm	350
2018	39.3 °C21 November 2018	20.3 °C21 July 2018	28.5 °C	1,687 mm	339
2017	39.8 °C5 January 2017	20.9 °C19 July 2017	29.3 °C	1,563 mm	349
2016	40.4 °C25 November 2016	21.2 °C27 July 2016	29.8 °C	1,036 mm	355
2015	40.0 °C27 December 2015	21.5 °C18 June 2015	29.5 °C	921 mm	354
2014	39.4 °C21 December 2014	21.1 °C13 August 2014	29.1 °C	1,158 mm	354
2013	39.5 °C4 October 2013	22.0 °C1 June 2013	29.5 °C	1,161 mm	356
2012	40.9 °C24 October 2012	21.6 °C30 July 2012	30.0 °C	943 mm	360
2011	39.8 °C25 September 2011	21.9 °C9 August 2011	28.8 °C	1,756 mm	338
2010	40.4 °C4 October 2010	20.4 °C27 June 2010	29.6 °C	1,168 mm	358
2009	39.5 °C19 December 2009	21.0 °C25 July 2009	28.4 °C	2,549 mm	333
2008	39.5 °C31 October 2008	21.5 °C23 June 2008	28.8 °C	1,685 mm	334
2007	40.3 °C21 January 2007	21.9 °C22 July 2007	29.3 °C	1,335 mm	351
2006	39.5 °C13 October 2006	20.7 °C2 June 2006	28.9 °C	1,744 mm	346
2005	41.3 °C20 November 2005	21.3 °C25 July 2005	29.2 °C	993 mm	356
2004	40.1 °C14 November 2004	20.6 °C9 June 2004	28.6 °C	1,701 mm	342
2003	39.3 °C15 November 2003	20.1 °C16 July 2003	28.6 °C	1,437 mm	346
2002	39.2 °C23 October 2002	21.8 °C22 January 2002	28.6 °C	1,505 mm	340
2001	39.7 °C23 December 2001	20.5 °C3 August 2001	28.1 °C	1,835 mm	330
2000	39.0 °C7 November 2000	20.7 °C14 February 2000	27.9 °C	1,528 mm	328
1999	39.1 °C10 November 1999	19.8 °C4 July 1999	28.0 °C	2,018 mm	327
1998	39.7 °C7 October 1998	22.4 °C24 January 1998	29.2 °C	1,185 mm	349
1997	39.5 °C3 December 1997	20.8 °C16 June 1997	28.3 °C	1,248 mm	340
1996	39.1 °C5 November 1996	20.1 °C26 June 1996	28.2 °C	2,225 mm	331
1995	39.0 °C14 November 1995	20.1 °C12 July 1995	28.0 °C	2,102 mm	324
1994	39.0 °C21 November 1994	21.1 °C19 July 1994	28.2 °C	1,910 mm	343
1993	41.2 °C25 November 1993	21.2 °C19 July 1993	29.3 °C	1,241 mm	353
1992	39.3 °C5 January 1992	21.0 °C22 July 1992	29.2 °C	848 mm	348
1991	38.4 °C22 November 1991	21.2 °C8 August 1991	28.4 °C	1,414 mm	340
1990	38.7 °C1 December 1990	21.6 °C5 March 1990	28.7 °C	929 mm	355
1989	39.3 °C29 October 1989	21.2 °C26 March 1989	28.0 °C	2,181 mm	330
1988	39.9 °C26 November 1988	20.8 °C3 August 1988	28.2 °C	1,941 mm	335
1987	40.9 °C28 November 1987	21.2 °C22 June 1987	29.2 °C	1,023 mm	346
1986	39.1 °C18 December 1986	20.5 °C16 June 1986	27.8 °C	2,334 mm	317
1985	39.2 °C22 October 1985	20.0 °C25 June 1985	27.4 °C	3,302 mm	292
1984	40.3 °C13 December 1984	20.4 °C26 June 1984	28.2 °C	1,938 mm	326
1983	39.8 °C19 December 1983	21.1 °C30 July 1983	29.7 °C	793 mm	351
1982	39.4 °C29 December 1982	21.4 °C14 July 1982	28.5 °C	1,541 mm	344
1981	39.7 °C26 October 1981	21.2 °C6 August 1981	28.9 °C	1,034 mm	344
1980	39.5 °C7 December 1980	21.4 °C29 February 1980	28.4 °C	1,612 mm	338
1979	39.1 °C10 October 1979	20.9 °C4 June 1979	28.2 °C	1,451 mm	340
1978	37.7 °C2 October 1978	20.6 °C7 June 1978	28.0 °C	1,520 mm	338
1977	39.3 °C22 November 1977	20.0 °C14 July 1977	27.8 °C	2,254 mm	320
1976	37.8 °C18 December 1976	20.9 °C18 July 1976	27.9 °C	1,629 mm	337
1975	37.5 °C14 October 1975	20.0 °C6 August 1975	27.3 °C	2,150 mm	316
1974	37.7 °C27 October 1974	19.0 °C12 June 1974	26.9 °C	2,645 mm	283
1973	38.3 °C9 October 1973	19.8 °C20 January 1973	27.5 °C	2,518 mm	333
1972	38.9 °C16 November 1972	20.7 °C5 September 1972	28.0 °C	1,450 mm	343
1971	38.1 °C7 October 1971	19.8 °C25 June 1971	27.3 °C	2,211 mm	318
1970	38.5 °C27 October 1970	21.2 °C3 August 1970	28.4 °C	1,115 mm	349
1969	38.4 °C6 October 1969	20.2 °C16 August 1969	28.0 °C	1,202 mm	346
1968	37.8 °C15 October 1968	20.6 °C24 May 1968	27.4 °C	1,758 mm	298
1967	37.4 °C4 December 1967	20.8 °C12 March 1967	27.3 °C	2,538 mm	293
1966	39.2 °C25 October 1966	21.3 °C12 June 1966	28.0 °C	1,531 mm	303
1965	39.6 °C17 November 1965	20.3 °C6 July 1965	28.2 °C	980 mm	312
1964	39.3 °C9 November 1964	21.0 °C16 June 1964	27.6 °C	1,774 mm	273
1963	39.8 °C17 October 1963	21.2 °C23 January 1963	28.0 °C	1,767 mm	284
1962	39.1 °C3 October 1962	20.7 °C2 August 1962	27.9 °C	1,375 mm	314
1961	39.6 °C24 November 1961	20.8 °C14 August 1961	28.0 °C	1,933 mm	282
1960	39.3 °C8 December 1960	20.8 °C10 May 1960	28.3 °C	1,677 mm	311
1959	39.1 °C1 December 1959	21.3 °C19 June 1959	28.1 °C	1,694 mm	292
1958	40.3 °C14 October 1958	21.0 °C4 March 1958	29.4 °C	728 mm	355
1957	39.8 °C16 December 1957	20.1 °C7 June 1957	28.2 °C	1,624 mm	290
1956	38.8 °C6 November 1956	20.4 °C25 May 1956	28.3 °C	1,161 mm	324
1955	39.2 °C10 January 1955	21.1 °C9 February 1955	28.0 °C	1,406 mm	297
1954	38.9 °C4 November 1954	21.2 °C9 July 1954	28.1 °C	1,304 mm	328
1953	39.5 °C30 October 1953	21.2 °C6 March 1953	28.3 °C	1,301 mm	323
1952	38.8 °C25 October 1952	20.9 °C23 June 1952	28.1 °C	1,618 mm	308
1951	39.3 °C11 November 1951	21.6 °C14 January 1951	28.9 °C	786 mm	339
1950	39.4 °C8 November 1950	20.1 °C27 May 1950	28.3 °C	1,816 mm	293
1949	39.7 °C10 October 1949	21.0 °C16 April 1949	28.0 °C	1,868 mm	301
1948	39.4 °C7 November 1948	21.3 °C22 January 1948	28.3 °C	1,463 mm	318
1947	39.0 °C2 January 1947	21.4 °C17 August 1947	27.8 °C	1,785 mm	313
1946	39.7 °C30 October 1946	21.0 °C15 April 1946	28.9 °C	912 mm	345
1945	39.4 °C10 November 1945	20.1 °C24 June 1945	27.9 °C	1,200 mm	307
1944	39.3 °C4 November 1944	21.0 °C17 March 1944	28.1 °C	2,033 mm	289
1943	39.6 °C24 October 1943	20.1 °C5 May 1943	27.9 °C	1,348 mm	297
1942	40.4 °C21 November 1942	21.8 °C14 May 1942	29.5 °C	672 mm	352
1941	40.1 °C23 October 1941	22.1 °C23 March 1941	29.4 °C	708 mm	347
1940	39.1 °C11 December 1940	20.1 °C6 July 1940	27.8 °C	1,656 mm	288

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

34.4 °C

+0.7 °C

Hot days (≥ 30 °C)

352 d/yr

+22

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1048 mm

-501 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	32.7 °C	0.0 °C	195 mm	-21 mm
Feb	32.3 °C	+0.7 °C	211 mm	-76 mm
Mar	31.5 °C	+0.5 °C	402 mm	-5 mm
Apr	32.0 °C	+1.1 °C	159 mm	-178 mm
May	32.7 °C	+1.1 °C	31 mm	-123 mm
Jun	33.2 °C	+0.6 °C	2 mm	-28 mm
Jul	34.5 °C	+0.7 °C	1 mm	-9 mm
Aug	35.9 °C	+0.7 °C	1 mm	-2 mm
Sep	37.3 °C	+0.9 °C	0 mm	-3 mm
Oct	38.0 °C	+0.9 °C	1 mm	-7 mm
Nov	37.5 °C	+0.8 °C	2 mm	-15 mm
Dec	35.4 °C	+0.1 °C	43 mm	-35 mm

The year's extremes

Hottest day

39.4 °C

12 Oct 2025

Coldest day

21.3 °C

27 Jul 2025

Wettest day

68.1 mm

1 Mar 2025

Windiest day

25.4 km/h

9 Nov 2025

Strongest gust

49.0 km/h

14 Jun 2025

Hottest feels-like

41.8 °C

30 Oct 2025

Coldest feels-like

21.5 °C

13 Jul 2025

Sunniest day

12.1 h

14 Nov 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 Barras?

Barras has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.4 °C and it receives 1,549 mm of precipitation per year.

What is the hottest day ever recorded in Barras?

The hottest day measured in Barras between 1940 and 2025 was 20 November 2005, reaching 41.3 °C.

What is the coldest day in Barras?

The coldest day measured in Barras between 1940 and 2025 was 27 July 2020, at 18.7 °C.

Does it snow in Barras?

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

Has the climate of Barras warmed?

Yes: Barras warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Barras?

The wettest day measured in Barras between 1940 and 2025 was 24 January 1985, with 332 mm of rain in 24 hours.

What was the windiest day in Barras?

The windiest day measured in Barras between 1940 and 2025 was 17 July 1947, with winds reaching 29.9 km/h.

What is the warmest month in Barras?

The warmest month in Barras is October (30.8 °C on average); the coldest is March (26.3 °C).

How much does it rain in Barras?

Barras receives on average 1,549 mm of precipitation per year, spread over about 130 rainy days.

Is it sunny in Barras?

Barras gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.

Are there tropical nights in Barras?

Yes: Barras has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Barras?

In Barras, between 1940 and 2025, the highest apparent temperature reached 44.1 °C on 14 October 2018, and the lowest was 18.9 °C on 4 July 1974.

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