Água Branca climate — normals and trends

Q: What is the climate of Água Branca?

Água Branca has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.3 °C and it receives 1,260 mm of precipitation per year.

Q: What is the hottest day ever recorded in Água Branca?

The hottest day measured in Água Branca between 1940 and 2025 was 20 November 2005, reaching 39.9 °C.

Q: What is the coldest day in Água Branca?

The coldest day measured in Água Branca between 1940 and 2025 was 15 June 1945, at 18.1 °C.

Q: Does it snow in Água Branca?

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

Q: Has the climate of Água Branca warmed?

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

Q: What is the wettest day in Água Branca?

The wettest day measured in Água Branca between 1940 and 2025 was 7 January 2024, with 230 mm of rain in 24 hours.

Q: What was the windiest day in Água Branca?

The windiest day measured in Água Branca between 1940 and 2025 was 16 July 1988, with winds reaching 30.0 km/h.

Q: What is the warmest month in Água Branca?

The warmest month in Água Branca is October (29.8 °C on average); the coldest is March (25.4 °C).

Q: How much does it rain in Água Branca?

Água Branca receives on average 1,260 mm of precipitation per year, spread over about 138 rainy days.

Q: Is it sunny in Água Branca?

Água Branca gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

Água Branca (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.3 °C and it receives 1,260 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 (29.8 °C on average) and the coldest is March (25.4 °C). Rainfall peaks in March.

Água Branca averages 0 frost days, 283 hot days (≥ 30 °C) and 138 rainy days per year.

Água Branca has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.

The hottest day of the period reached 39.9 °C (on 20 November 2005) and the coldest 18.1 °C (on 15 June 1945).

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

Água BrancaPiauí

coords: -5.89°, -42.64°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthOctoberColdest monthMarchWettest monthMarchDriest monthAugust

Mean daily temperature

27.3°C

Average daily high

32.2°C

Average daily low

23.3°C

Annual rainfall

1,260mm

Sunshine / day

10.7h

Mean relative humidity

66%

Average peak wind

12.8km/h

Seasonal range

4.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

283 d/yr

Rainy days (≥ 1 mm)

138 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.0 °C

Average feels-like low

25.5 °C

Average peak gust

31.1 km/h

Tropical nights (≥ 20 °C)

363 d/yr

Solar radiation

19.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.8 °C

since 1940

+0.1 °C per decade · r² = 0.10 · p = 0.004

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

39.9 °C

20 November 2005

Coldest day

18.1 °C

15 June 1945

Wettest day

230 mm

7 January 2024

Windiest day

30.0 km/h

16 July 1988

Strongest gust

60.5 km/h

4 October 1958

Hottest feels-like

45.1 °C

30 October 2005

Coldest feels-like

17.5 °C

31 July 1974

Sunniest day

12.2 h

19 November 1951

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	37.9 °C15 October 2025	20.6 °C23 December 2025	28.0 °C	692 mm	336
2024	38.2 °C9 October 2024	19.4 °C12 July 2024	27.4 °C	1,239 mm	340
2023	38.5 °C28 October 2023	19.4 °C17 June 2023	27.2 °C	940 mm	314
2022	36.8 °C6 October 2022	19.5 °C10 August 2022	26.9 °C	1,200 mm	315
2021	37.7 °C22 September 2021	19.7 °C7 April 2021	27.5 °C	971 mm	309
2020	37.7 °C15 October 2020	20.0 °C9 July 2020	27.4 °C	1,542 mm	321
2019	37.8 °C21 September 2019	20.2 °C17 July 2019	28.2 °C	1,097 mm	340
2018	38.3 °C18 September 2018	20.9 °C26 June 2018	28.0 °C	1,184 mm	326
2017	38.3 °C21 October 2017	21.1 °C18 July 2017	28.4 °C	1,024 mm	328
2016	39.6 °C25 November 2016	21.1 °C14 June 2016	29.2 °C	928 mm	345
2015	39.0 °C2 December 2015	20.8 °C20 February 2015	28.5 °C	857 mm	338
2014	37.8 °C19 October 2014	21.0 °C17 November 2014	28.1 °C	989 mm	336
2013	38.1 °C17 September 2013	20.6 °C25 June 2013	28.5 °C	1,080 mm	339
2012	39.8 °C24 October 2012	21.1 °C6 August 2012	28.7 °C	771 mm	345
2011	38.6 °C25 September 2011	20.2 °C19 July 2011	27.5 °C	1,318 mm	320
2010	39.2 °C4 October 2010	20.7 °C22 June 2010	28.5 °C	1,008 mm	343
2009	37.9 °C28 November 2009	21.0 °C26 July 2009	27.4 °C	1,945 mm	317
2008	38.3 °C27 October 2008	19.8 °C23 June 2008	27.5 °C	1,278 mm	305
2007	38.2 °C7 November 2007	20.3 °C25 July 2007	28.3 °C	1,096 mm	335
2006	37.3 °C13 October 2006	20.9 °C23 July 2006	27.5 °C	1,395 mm	313
2005	39.9 °C20 November 2005	20.8 °C15 July 2005	28.2 °C	1,127 mm	329
2004	37.9 °C12 October 2004	20.1 °C9 June 2004	27.6 °C	1,335 mm	316
2003	37.4 °C19 October 2003	19.4 °C6 July 2003	27.7 °C	1,282 mm	319
2002	37.5 °C23 October 2002	20.3 °C6 August 2002	27.6 °C	1,171 mm	328
2001	38.3 °C31 October 2001	20.5 °C26 January 2001	27.2 °C	1,015 mm	305
2000	36.3 °C13 October 2000	19.4 °C11 August 2000	26.9 °C	1,322 mm	303
1999	36.7 °C10 October 1999	19.6 °C2 June 1999	26.6 °C	1,802 mm	275
1998	38.8 °C7 October 1998	20.9 °C23 December 1998	28.3 °C	962 mm	338
1997	37.6 °C1 October 1997	19.2 °C13 June 1997	27.1 °C	1,237 mm	302
1996	36.3 °C25 September 1996	19.6 °C18 January 1996	26.8 °C	1,632 mm	287
1995	37.4 °C13 October 1995	20.5 °C26 February 1995	26.6 °C	1,901 mm	273
1994	36.4 °C22 October 1994	20.6 °C23 July 1994	27.2 °C	1,315 mm	304
1993	37.7 °C20 October 1993	20.5 °C27 February 1993	27.9 °C	1,081 mm	316
1992	36.9 °C29 September 1992	20.7 °C27 August 1992	27.6 °C	1,273 mm	320
1991	37.2 °C8 October 1991	20.1 °C20 July 1991	27.2 °C	1,166 mm	322
1990	36.0 °C3 September 1990	20.8 °C17 May 1990	27.4 °C	823 mm	323
1989	36.1 °C5 October 1989	20.5 °C5 May 1989	26.5 °C	1,681 mm	253
1988	36.6 °C20 October 1988	19.0 °C9 May 1988	26.9 °C	1,567 mm	294
1987	37.3 °C28 November 1987	20.9 °C15 February 1987	27.7 °C	1,259 mm	325
1986	36.7 °C18 December 1986	19.4 °C27 July 1986	26.5 °C	1,608 mm	270
1985	36.2 °C22 October 1985	19.9 °C25 June 1985	26.0 °C	2,730 mm	205
1984	35.7 °C17 October 1984	19.7 °C13 January 1984	26.7 °C	1,414 mm	274
1983	37.5 °C20 September 1983	21.0 °C28 April 1983	28.3 °C	999 mm	332
1982	37.3 °C22 November 1982	20.5 °C14 July 1982	27.3 °C	1,075 mm	293
1981	37.8 °C13 December 1981	20.7 °C20 January 1981	27.5 °C	955 mm	315
1980	36.7 °C11 October 1980	21.0 °C1 March 1980	27.2 °C	1,704 mm	306
1979	36.7 °C10 October 1979	20.4 °C23 July 1979	26.7 °C	1,560 mm	282
1978	36.3 °C7 October 1978	20.0 °C5 June 1978	26.7 °C	1,588 mm	284
1977	36.1 °C3 November 1977	19.0 °C13 August 1977	26.5 °C	1,786 mm	256
1976	35.8 °C17 September 1976	19.9 °C19 February 1976	26.4 °C	1,465 mm	280
1975	34.6 °C5 October 1975	19.1 °C26 July 1975	25.9 °C	1,525 mm	225
1974	35.2 °C7 October 1974	18.9 °C4 July 1974	25.6 °C	2,287 mm	196
1973	35.8 °C8 October 1973	19.2 °C2 August 1973	26.3 °C	1,939 mm	267
1972	36.1 °C23 October 1972	19.6 °C26 June 1972	26.7 °C	1,337 mm	275
1971	35.5 °C24 September 1971	19.7 °C24 June 1971	26.2 °C	1,596 mm	234
1970	36.4 °C15 October 1970	18.4 °C26 May 1970	26.9 °C	1,106 mm	302
1969	36.0 °C14 October 1969	20.5 °C27 July 1969	27.0 °C	768 mm	305
1968	35.5 °C31 October 1968	19.7 °C11 May 1968	26.0 °C	1,114 mm	199
1967	34.9 °C21 October 1967	19.0 °C15 July 1967	26.1 °C	1,502 mm	227
1966	37.7 °C26 October 1966	20.3 °C9 June 1966	26.9 °C	1,386 mm	210
1965	38.7 °C15 November 1965	20.6 °C28 January 1965	27.6 °C	878 mm	271
1964	36.5 °C21 October 1964	19.6 °C3 June 1964	26.7 °C	1,392 mm	210
1963	39.0 °C17 October 1963	19.9 °C19 May 1963	27.2 °C	1,214 mm	218
1962	38.4 °C20 October 1962	19.8 °C24 March 1962	27.2 °C	1,040 mm	235
1961	38.6 °C3 November 1961	19.1 °C18 June 1961	27.2 °C	1,102 mm	233
1960	39.3 °C8 December 1960	20.1 °C7 March 1960	27.5 °C	1,314 mm	241
1959	38.7 °C14 October 1959	19.3 °C16 May 1959	27.5 °C	1,191 mm	238
1958	39.7 °C18 October 1958	21.2 °C14 February 1958	28.7 °C	735 mm	327
1957	38.7 °C5 November 1957	19.3 °C28 April 1957	27.6 °C	1,304 mm	235
1956	38.6 °C28 October 1956	19.4 °C12 June 1956	27.2 °C	1,149 mm	239
1955	38.4 °C8 October 1955	20.1 °C5 May 1955	27.3 °C	996 mm	238
1954	37.5 °C28 October 1954	19.9 °C1 December 1954	27.0 °C	1,024 mm	256
1953	38.0 °C15 December 1953	19.6 °C28 May 1953	27.5 °C	849 mm	254
1952	37.4 °C29 October 1952	20.1 °C1 May 1952	26.9 °C	1,378 mm	238
1951	37.8 °C29 September 1951	20.6 °C22 May 1951	27.4 °C	844 mm	259
1950	38.1 °C9 December 1950	18.6 °C31 May 1950	27.6 °C	1,064 mm	249
1949	38.6 °C9 October 1949	20.7 °C7 February 1949	27.0 °C	1,354 mm	217
1948	38.8 °C10 November 1948	20.8 °C22 January 1948	27.5 °C	1,071 mm	232
1947	38.0 °C28 September 1947	20.3 °C5 June 1947	26.9 °C	1,468 mm	222
1946	39.5 °C31 October 1946	19.8 °C6 June 1946	28.0 °C	823 mm	295
1945	38.3 °C10 November 1945	18.1 °C15 June 1945	26.8 °C	1,089 mm	219
1944	38.3 °C4 November 1944	20.3 °C10 January 1944	27.0 °C	1,738 mm	224
1943	38.3 °C24 October 1943	19.7 °C6 May 1943	26.3 °C	1,400 mm	204
1942	38.9 °C20 November 1942	20.6 °C9 March 1942	28.7 °C	629 mm	318
1941	39.3 °C23 October 1941	20.7 °C18 April 1941	28.5 °C	789 mm	308
1940	36.4 °C10 December 1940	20.1 °C13 May 1940	26.8 °C	1,567 mm	229

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

33.2 °C

+1.0 °C

Hot days (≥ 30 °C)

336 d/yr

+53

Frost days (< 0 °C)

0 d/yr

Annual rainfall

692 mm

-569 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	30.8 °C	+0.2 °C	298 mm	+70 mm
Feb	31.1 °C	+1.1 °C	102 mm	-144 mm
Mar	30.4 °C	+0.7 °C	136 mm	-159 mm
Apr	31.8 °C	+1.8 °C	42 mm	-159 mm
May	32.8 °C	+2.1 °C	4 mm	-63 mm
Jun	32.7 °C	+1.0 °C	1 mm	-10 mm
Jul	33.7 °C	+1.3 °C	1 mm	-4 mm
Aug	34.7 °C	+0.9 °C	6 mm	+4 mm
Sep	36.1 °C	+1.0 °C	0 mm	-5 mm
Oct	36.0 °C	+0.7 °C	40 mm	+17 mm
Nov	35.4 °C	+1.3 °C	7 mm	-55 mm
Dec	32.4 °C	-0.1 °C	55 mm	-60 mm

The year's extremes

Hottest day

37.9 °C

15 Oct 2025

Coldest day

20.6 °C

23 Dec 2025

Wettest day

123.4 mm

14 Jan 2025

Windiest day

25.5 km/h

14 Jun 2025

Strongest gust

51.8 km/h

14 Jun 2025

Hottest feels-like

41.7 °C

19 Oct 2025

Coldest feels-like

19.4 °C

13 Jul 2025

Sunniest day

12.1 h

25 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 Água Branca?

Água Branca has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.3 °C and it receives 1,260 mm of precipitation per year.

What is the hottest day ever recorded in Água Branca?

The hottest day measured in Água Branca between 1940 and 2025 was 20 November 2005, reaching 39.9 °C.

What is the coldest day in Água Branca?

The coldest day measured in Água Branca between 1940 and 2025 was 15 June 1945, at 18.1 °C.

Does it snow in Água Branca?

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

Has the climate of Água Branca warmed?

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

What is the wettest day in Água Branca?

The wettest day measured in Água Branca between 1940 and 2025 was 7 January 2024, with 230 mm of rain in 24 hours.

What was the windiest day in Água Branca?

The windiest day measured in Água Branca between 1940 and 2025 was 16 July 1988, with winds reaching 30.0 km/h.

What is the warmest month in Água Branca?

The warmest month in Água Branca is October (29.8 °C on average); the coldest is March (25.4 °C).

How much does it rain in Água Branca?

Água Branca receives on average 1,260 mm of precipitation per year, spread over about 138 rainy days.

Is it sunny in Água Branca?

Água Branca gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

Are there tropical nights in Água Branca?

Yes: Água Branca has on average 363 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Água Branca?

In Água Branca, between 1940 and 2025, the highest apparent temperature reached 45.1 °C on 30 October 2005, and the lowest was 17.5 °C on 31 July 1974.

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