Bacabal climate — normals and trends

Q: What is the climate of Bacabal?

Bacabal has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.4 °C and it receives 1,445 mm of precipitation per year.

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

The hottest day measured in Bacabal between 1940 and 2025 was 24 October 2012, reaching 40.1 °C.

Q: What is the coldest day in Bacabal?

The coldest day measured in Bacabal between 1940 and 2025 was 27 July 2016, at 18.5 °C.

Q: Does it snow in Bacabal?

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

Q: Has the climate of Bacabal warmed?

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

Q: What is the wettest day in Bacabal?

The wettest day measured in Bacabal between 1940 and 2025 was 17 February 2007, with 193 mm of rain in 24 hours.

Q: What was the windiest day in Bacabal?

The windiest day measured in Bacabal between 1940 and 2025 was 16 August 1991, with winds reaching 25.7 km/h.

Q: What is the warmest month in Bacabal?

The warmest month in Bacabal is October (29.5 °C on average); the coldest is March (25.9 °C).

Q: How much does it rain in Bacabal?

Bacabal receives on average 1,445 mm of precipitation per year, spread over about 167 rainy days.

Q: Is it sunny in Bacabal?

Bacabal gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Bacabal (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.4 °C and it receives 1,445 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 (29.5 °C on average) and the coldest is March (25.9 °C). Rainfall peaks in March.

Bacabal averages 0 frost days, 298 hot days (≥ 30 °C) and 167 rainy days per year.

Bacabal 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 40.1 °C (on 24 October 2012) and the coldest 18.5 °C (on 27 July 2016).

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

BacabalMaranhão

coords: -4.23°, -44.78°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthOctoberColdest monthMarchWettest monthMarchDriest monthAugust

Mean daily temperature

27.4°C

Average daily high

32.4°C

Average daily low

23.5°C

Annual rainfall

1,445mm

Sunshine / day

10.6h

Mean relative humidity

75%

Average peak wind

11.3km/h

Seasonal range

3.6°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

298 d/yr

Rainy days (≥ 1 mm)

167 d/yr

Annual snowfall

0.0 cm

Average feels-like high

37.2 °C

Average feels-like low

27.6 °C

Average peak gust

30.5 km/h

Tropical nights (≥ 20 °C)

364 d/yr

Solar radiation

19.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.8 °C

since 1940

+0.1 °C per decade · r² = 0.18 · 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

40.1 °C

24 October 2012

Coldest day

18.5 °C

27 July 2016

Wettest day

193 mm

17 February 2007

Windiest day

25.7 km/h

16 August 1991

Strongest gust

56.2 km/h

16 August 1991

Hottest feels-like

44.4 °C

13 November 2016

Coldest feels-like

18.1 °C

3 August 2001

Sunniest day

12.0 h

2 January 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.8 °C25 November 2025	20.8 °C6 July 2025	28.1 °C	1,373 mm	345
2024	37.6 °C13 October 2024	19.3 °C26 July 2024	28.4 °C	997 mm	348
2023	37.7 °C29 September 2023	20.0 °C15 August 2023	28.0 °C	1,220 mm	329
2022	37.1 °C31 October 2022	19.7 °C21 July 2022	27.3 °C	1,524 mm	317
2021	36.3 °C5 September 2021	19.1 °C3 August 2021	27.6 °C	1,376 mm	332
2020	38.2 °C21 October 2020	19.4 °C1 August 2020	27.8 °C	1,697 mm	342
2019	37.1 °C27 October 2019	20.1 °C11 August 2019	28.0 °C	1,459 mm	345
2018	37.8 °C20 November 2018	19.6 °C17 July 2018	27.8 °C	1,523 mm	327
2017	39.2 °C5 December 2017	19.3 °C19 July 2017	28.3 °C	1,404 mm	341
2016	38.8 °C4 November 2016	18.5 °C27 July 2016	28.7 °C	1,168 mm	351
2015	39.3 °C2 December 2015	20.9 °C15 July 2015	28.5 °C	1,142 mm	344
2014	38.0 °C19 October 2014	20.1 °C14 August 2014	27.9 °C	1,380 mm	335
2013	38.0 °C4 October 2013	21.2 °C4 August 2013	28.2 °C	1,376 mm	348
2012	40.1 °C24 October 2012	19.6 °C30 July 2012	28.4 °C	1,255 mm	344
2011	38.6 °C25 September 2011	20.5 °C19 July 2011	27.7 °C	1,704 mm	322
2010	38.3 °C9 October 2010	19.6 °C10 August 2010	28.4 °C	1,387 mm	345
2009	37.8 °C28 November 2009	20.8 °C28 July 2009	27.7 °C	1,976 mm	324
2008	37.9 °C31 October 2008	19.7 °C7 August 2008	27.8 °C	1,534 mm	325
2007	38.4 °C8 November 2007	20.1 °C30 July 2007	28.2 °C	1,450 mm	342
2006	37.6 °C8 October 2006	20.0 °C5 August 2006	27.8 °C	1,505 mm	324
2005	39.2 °C18 November 2005	20.1 °C25 July 2005	28.1 °C	1,341 mm	334
2004	37.9 °C18 November 2004	19.7 °C5 August 2004	27.8 °C	1,570 mm	329
2003	36.8 °C19 October 2003	20.3 °C30 June 2003	27.6 °C	1,627 mm	332
2002	37.7 °C22 October 2002	21.0 °C20 June 2002	27.6 °C	1,645 mm	321
2001	36.7 °C18 October 2001	20.0 °C29 July 2001	27.2 °C	1,511 mm	315
2000	37.4 °C7 November 2000	20.8 °C31 July 2000	27.1 °C	1,531 mm	301
1999	37.1 °C10 November 1999	19.8 °C30 July 1999	27.1 °C	1,845 mm	307
1998	38.2 °C30 October 1998	20.5 °C25 July 1998	28.1 °C	1,157 mm	344
1997	37.4 °C11 October 1997	20.1 °C16 June 1997	27.5 °C	1,520 mm	316
1996	36.7 °C11 November 1996	20.0 °C10 July 1996	27.2 °C	1,761 mm	308
1995	37.5 °C15 October 1995	20.1 °C13 July 1995	27.2 °C	1,719 mm	305
1994	36.9 °C18 December 1994	20.3 °C2 July 1994	27.2 °C	1,702 mm	299
1993	37.7 °C10 December 1993	20.6 °C21 July 1993	27.7 °C	1,418 mm	323
1992	38.9 °C13 January 1992	20.2 °C12 July 1992	27.9 °C	1,021 mm	333
1991	37.1 °C6 December 1991	20.8 °C30 July 1991	27.5 °C	1,195 mm	324
1990	36.1 °C16 October 1990	20.5 °C7 August 1990	27.4 °C	1,084 mm	334
1989	35.4 °C26 September 1989	20.8 °C1 September 1989	26.8 °C	1,889 mm	284
1988	36.0 °C24 September 1988	20.1 °C3 August 1988	27.2 °C	1,667 mm	309
1987	38.1 °C28 November 1987	21.2 °C27 June 1987	27.8 °C	1,106 mm	337
1986	35.7 °C19 October 1986	20.6 °C8 June 1986	26.7 °C	1,926 mm	278
1985	36.8 °C24 October 1985	20.8 °C29 June 1985	26.4 °C	2,490 mm	243
1984	36.1 °C22 November 1984	19.3 °C27 July 1984	26.7 °C	1,702 mm	289
1983	37.0 °C8 October 1983	21.1 °C14 August 1983	27.9 °C	1,003 mm	339
1982	38.1 °C20 December 1982	20.3 °C6 July 1982	27.3 °C	1,386 mm	314
1981	39.1 °C12 December 1981	21.1 °C6 August 1981	27.9 °C	978 mm	332
1980	37.1 °C5 December 1980	20.9 °C3 August 1980	27.3 °C	1,411 mm	308
1979	36.5 °C2 November 1979	19.6 °C29 July 1979	26.9 °C	1,588 mm	318
1978	36.0 °C26 November 1978	21.1 °C21 August 1978	26.8 °C	2,008 mm	295
1977	37.3 °C22 November 1977	19.3 °C5 August 1977	26.7 °C	2,053 mm	266
1976	35.7 °C23 September 1976	20.1 °C20 July 1976	26.5 °C	1,518 mm	280
1975	35.2 °C18 September 1975	19.6 °C25 July 1975	26.4 °C	1,639 mm	265
1974	35.9 °C25 October 1974	19.1 °C12 June 1974	26.1 °C	2,052 mm	232
1973	35.3 °C16 November 1973	19.7 °C2 August 1973	26.5 °C	2,166 mm	280
1972	37.0 °C21 November 1972	20.1 °C22 July 1972	26.8 °C	1,594 mm	301
1971	35.6 °C26 September 1971	18.9 °C11 July 1971	26.3 °C	1,806 mm	244
1970	35.9 °C22 August 1970	20.7 °C24 July 1970	27.1 °C	1,356 mm	304
1969	36.4 °C6 October 1969	20.5 °C25 August 1969	27.4 °C	1,003 mm	316
1968	36.2 °C18 October 1968	19.8 °C15 June 1968	26.6 °C	1,510 mm	244
1967	36.2 °C10 December 1967	20.3 °C15 July 1967	26.7 °C	1,629 mm	252
1966	38.0 °C25 October 1966	20.9 °C20 August 1966	27.1 °C	1,692 mm	241
1965	38.8 °C15 November 1965	21.0 °C24 July 1965	27.5 °C	1,022 mm	263
1964	37.5 °C9 November 1964	20.6 °C3 June 1964	27.0 °C	1,372 mm	223
1963	38.5 °C16 October 1963	20.1 °C17 June 1963	27.4 °C	1,304 mm	251
1962	38.6 °C3 October 1962	19.5 °C19 June 1962	27.2 °C	1,364 mm	253
1961	39.1 °C2 November 1961	20.6 °C29 June 1961	27.2 °C	1,371 mm	250
1960	38.9 °C8 December 1960	21.0 °C17 July 1960	27.5 °C	1,585 mm	265
1959	38.2 °C9 November 1959	19.8 °C7 July 1959	27.2 °C	1,603 mm	236
1958	39.2 °C26 October 1958	21.1 °C17 August 1958	28.2 °C	1,138 mm	327
1957	39.2 °C5 November 1957	21.0 °C2 June 1957	27.5 °C	1,296 mm	254
1956	38.1 °C6 November 1956	21.2 °C6 February 1956	27.0 °C	1,266 mm	242
1955	38.7 °C9 October 1955	20.0 °C16 July 1955	27.1 °C	1,275 mm	245
1954	38.0 °C18 October 1954	20.6 °C23 July 1954	27.1 °C	1,029 mm	274
1953	38.3 °C3 November 1953	20.9 °C14 July 1953	27.3 °C	1,104 mm	264
1952	38.0 °C9 October 1952	20.8 °C23 June 1952	27.1 °C	1,699 mm	263
1951	38.2 °C4 December 1951	21.5 °C27 March 1951	27.8 °C	940 mm	307
1950	39.2 °C10 December 1950	21.0 °C21 July 1950	27.6 °C	1,149 mm	257
1949	38.6 °C10 October 1949	21.5 °C5 February 1949	27.2 °C	1,330 mm	247
1948	38.7 °C5 November 1948	20.5 °C24 June 1948	27.5 °C	1,225 mm	278
1947	38.6 °C10 October 1947	20.9 °C11 July 1947	27.1 °C	1,549 mm	264
1946	39.5 °C12 December 1946	20.6 °C23 June 1946	27.9 °C	822 mm	317
1945	38.9 °C10 November 1945	20.0 °C15 June 1945	27.2 °C	1,357 mm	265
1944	39.0 °C3 November 1944	21.4 °C31 May 1944	27.5 °C	1,682 mm	250
1943	38.3 °C24 October 1943	20.4 °C11 July 1943	26.6 °C	1,561 mm	220
1942	39.6 °C20 November 1942	20.9 °C9 July 1942	28.1 °C	894 mm	332
1941	39.7 °C17 October 1941	21.6 °C23 July 1941	28.5 °C	813 mm	331
1940	37.3 °C14 December 1940	19.3 °C6 July 1940	27.1 °C	1,282 mm	256

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

33.3 °C

+0.9 °C

Hot days (≥ 30 °C)

345 d/yr

+47

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1374 mm

-72 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	32.0 °C	+1.0 °C	387 mm	+153 mm
Feb	31.0 °C	+0.5 °C	295 mm	+32 mm
Mar	31.1 °C	+1.0 °C	283 mm	-27 mm
Apr	31.9 °C	+1.7 °C	160 mm	-94 mm
May	31.8 °C	+1.2 °C	92 mm	-32 mm
Jun	32.0 °C	+0.7 °C	24 mm	-14 mm
Jul	33.6 °C	+1.0 °C	10 mm	-6 mm
Aug	34.4 °C	+0.2 °C	3 mm	-4 mm
Sep	36.1 °C	+1.0 °C	2 mm	-8 mm
Oct	36.0 °C	+0.6 °C	14 mm	-5 mm
Nov	35.6 °C	+0.9 °C	11 mm	-35 mm
Dec	33.6 °C	+0.4 °C	94 mm	-33 mm

The year's extremes

Hottest day

38.8 °C

25 Nov 2025

Coldest day

20.8 °C

6 Jul 2025

Wettest day

95.9 mm

24 Jan 2025

Windiest day

20.0 km/h

23 Sep 2025

Strongest gust

46.4 km/h

14 Jun 2025

Hottest feels-like

41.5 °C

2 Oct 2025

Coldest feels-like

20.8 °C

14 Jul 2025

Sunniest day

12.0 h

1 Jan 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 Bacabal?

Bacabal has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.4 °C and it receives 1,445 mm of precipitation per year.

What is the hottest day ever recorded in Bacabal?

The hottest day measured in Bacabal between 1940 and 2025 was 24 October 2012, reaching 40.1 °C.

What is the coldest day in Bacabal?

The coldest day measured in Bacabal between 1940 and 2025 was 27 July 2016, at 18.5 °C.

Does it snow in Bacabal?

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

Has the climate of Bacabal warmed?

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

What is the wettest day in Bacabal?

The wettest day measured in Bacabal between 1940 and 2025 was 17 February 2007, with 193 mm of rain in 24 hours.

What was the windiest day in Bacabal?

The windiest day measured in Bacabal between 1940 and 2025 was 16 August 1991, with winds reaching 25.7 km/h.

What is the warmest month in Bacabal?

The warmest month in Bacabal is October (29.5 °C on average); the coldest is March (25.9 °C).

How much does it rain in Bacabal?

Bacabal receives on average 1,445 mm of precipitation per year, spread over about 167 rainy days.

Is it sunny in Bacabal?

Bacabal gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Are there tropical nights in Bacabal?

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

What was the most extreme apparent temperature in Bacabal?

In Bacabal, between 1940 and 2025, the highest apparent temperature reached 44.4 °C on 13 November 2016, and the lowest was 18.1 °C on 3 August 2001.

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