Olho d’Água das Cunhãs climate — normals and trends

Q: What is the climate of Olho d’Água das Cunhãs?

Olho d’Água das Cunhãs has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.6 °C and it receives 1,319 mm of precipitation per year.

Q: What is the hottest day ever recorded in Olho d’Água das Cunhãs?

The hottest day measured in Olho d’Água das Cunhãs between 1940 and 2025 was 24 October 2012, reaching 40.2 °C.

Q: What is the coldest day in Olho d’Água das Cunhãs?

The coldest day measured in Olho d’Água das Cunhãs between 1940 and 2025 was 11 July 1971, at 18.9 °C.

Q: Does it snow in Olho d’Água das Cunhãs?

Almost never: Olho d’Água das Cunhãs sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Olho d’Água das Cunhãs warmed?

Yes: Olho d’Água das Cunhãs warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Olho d’Água das Cunhãs?

The wettest day measured in Olho d’Água das Cunhãs between 1940 and 2025 was 28 February 1978, with 216 mm of rain in 24 hours.

Q: What was the windiest day in Olho d’Água das Cunhãs?

The windiest day measured in Olho d’Água das Cunhãs between 1940 and 2025 was 16 July 1988, with winds reaching 26.9 km/h.

Q: What is the warmest month in Olho d’Água das Cunhãs?

The warmest month in Olho d’Água das Cunhãs is October (29.7 °C on average); the coldest is March (26.0 °C).

Q: How much does it rain in Olho d’Água das Cunhãs?

Olho d’Água das Cunhãs receives on average 1,319 mm of precipitation per year, spread over about 166 rainy days.

Q: Is it sunny in Olho d’Água das Cunhãs?

Olho d’Água das Cunhãs gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.

Olho d’Água das Cunhãs (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.6 °C and it receives 1,319 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 (29.7 °C on average) and the coldest is March (26.0 °C). Rainfall peaks in March.

Olho d’Água das Cunhãs averages 0 frost days, 302 hot days (≥ 30 °C) and 166 rainy days per year.

Olho d’Água das Cunhãs has warmed by +0.9 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.

The hottest day of the period reached 40.2 °C (on 24 October 2012) and the coldest 18.9 °C (on 11 July 1971).

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

Olho d’Água das CunhãsMaranhão

coords: -4.14°, -45.12°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthOctoberColdest monthMarchWettest monthMarchDriest monthAugust

Mean daily temperature

27.6°C

Average daily high

32.6°C

Average daily low

23.8°C

Annual rainfall

1,319mm

Sunshine / day

10.5h

Mean relative humidity

74%

Average peak wind

11.9km/h

Seasonal range

3.7°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

302 d/yr

Rainy days (≥ 1 mm)

166 d/yr

Annual snowfall

0.0 cm

Average feels-like high

37.2 °C

Average feels-like low

27.9 °C

Average peak gust

30.5 km/h

Tropical nights (≥ 20 °C)

364 d/yr

Solar radiation

19.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.9 °C

since 1940

+0.1 °C per decade · r² = 0.19 · 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

40.2 °C

24 October 2012

Coldest day

18.9 °C

11 July 1971

Wettest day

216 mm

28 February 1978

Windiest day

26.9 km/h

16 July 1988

Strongest gust

54.4 km/h

17 July 1947

Hottest feels-like

44.8 °C

25 October 2017

Coldest feels-like

18.6 °C

3 August 2001

Sunniest day

12.0 h

2 January 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.7 °C25 November 2025	21.0 °C14 July 2025	28.3 °C	1,356 mm	346
2024	38.1 °C13 October 2024	19.8 °C22 July 2024	28.7 °C	929 mm	353
2023	38.0 °C29 October 2023	20.7 °C15 August 2023	28.3 °C	1,099 mm	335
2022	37.1 °C19 October 2022	20.1 °C22 August 2022	27.6 °C	1,380 mm	322
2021	37.0 °C28 August 2021	19.4 °C3 August 2021	27.8 °C	1,231 mm	337
2020	38.6 °C21 October 2020	19.7 °C1 August 2020	28.1 °C	1,671 mm	340
2019	37.7 °C21 September 2019	21.3 °C19 July 2019	28.3 °C	1,284 mm	351
2018	38.5 °C20 November 2018	20.6 °C17 July 2018	28.1 °C	1,413 mm	335
2017	39.6 °C5 December 2017	19.7 °C19 July 2017	28.6 °C	1,280 mm	347
2016	39.2 °C25 November 2016	19.2 °C27 July 2016	28.9 °C	1,118 mm	352
2015	39.5 °C1 December 2015	21.5 °C15 July 2015	28.7 °C	1,006 mm	347
2014	38.5 °C9 October 2014	21.4 °C14 August 2014	28.1 °C	1,227 mm	342
2013	38.2 °C19 September 2013	21.6 °C12 July 2013	28.3 °C	1,287 mm	349
2012	40.2 °C24 October 2012	21.0 °C30 July 2012	28.5 °C	1,128 mm	349
2011	39.2 °C25 September 2011	21.0 °C20 October 2011	27.9 °C	1,599 mm	330
2010	38.6 °C15 October 2010	20.5 °C27 June 2010	28.6 °C	1,325 mm	350
2009	37.9 °C28 November 2009	20.9 °C28 July 2009	27.9 °C	1,733 mm	335
2008	38.5 °C25 November 2008	20.5 °C23 June 2008	28.0 °C	1,405 mm	330
2007	38.6 °C8 November 2007	20.9 °C22 June 2007	28.5 °C	1,293 mm	338
2006	37.9 °C8 October 2006	20.5 °C5 August 2006	28.0 °C	1,332 mm	329
2005	39.5 °C18 November 2005	20.7 °C25 July 2005	28.4 °C	1,230 mm	336
2004	38.2 °C18 November 2004	20.5 °C5 August 2004	28.0 °C	1,322 mm	339
2003	37.1 °C4 October 2003	20.4 °C28 June 2003	27.8 °C	1,542 mm	333
2002	38.3 °C22 October 2002	21.2 °C20 June 2002	27.8 °C	1,494 mm	329
2001	37.5 °C18 October 2001	20.2 °C29 July 2001	27.5 °C	1,412 mm	325
2000	38.0 °C7 November 2000	21.1 °C31 July 2000	27.3 °C	1,370 mm	315
1999	37.4 °C10 November 1999	19.9 °C4 July 1999	27.3 °C	1,653 mm	313
1998	38.7 °C30 October 1998	21.2 °C25 June 1998	28.3 °C	1,085 mm	342
1997	37.9 °C6 October 1997	21.3 °C31 March 1997	27.8 °C	1,404 mm	318
1996	37.2 °C11 November 1996	20.1 °C4 July 1996	27.5 °C	1,647 mm	314
1995	38.7 °C15 October 1995	20.8 °C13 July 1995	27.4 °C	1,510 mm	313
1994	36.5 °C4 December 1994	20.9 °C2 July 1994	27.4 °C	1,409 mm	306
1993	37.4 °C7 September 1993	21.3 °C31 July 1993	27.8 °C	1,228 mm	329
1992	38.9 °C13 January 1992	21.1 °C12 July 1992	28.1 °C	940 mm	333
1991	37.4 °C24 September 1991	21.4 °C30 July 1991	27.7 °C	1,055 mm	327
1990	36.5 °C1 November 1990	20.8 °C7 August 1990	27.6 °C	932 mm	333
1989	35.9 °C26 September 1989	21.2 °C29 December 1989	26.9 °C	1,596 mm	292
1988	36.5 °C31 August 1988	20.9 °C3 August 1988	27.4 °C	1,516 mm	313
1987	38.5 °C28 November 1987	21.6 °C27 June 1987	28.0 °C	1,006 mm	339
1986	36.3 °C19 October 1986	20.9 °C8 June 1986	26.9 °C	1,793 mm	288
1985	37.1 °C24 October 1985	21.0 °C25 June 1985	26.5 °C	2,341 mm	249
1984	35.9 °C22 November 1984	20.1 °C27 July 1984	26.9 °C	1,526 mm	292
1983	37.5 °C3 November 1983	21.7 °C14 August 1983	28.0 °C	974 mm	338
1982	38.5 °C20 December 1982	21.4 °C6 July 1982	27.6 °C	1,305 mm	317
1981	39.1 °C12 December 1981	21.8 °C27 July 1981	28.1 °C	938 mm	329
1980	37.6 °C5 December 1980	21.6 °C26 July 1980	27.5 °C	1,299 mm	307
1979	36.8 °C3 November 1979	20.4 °C17 June 1979	27.1 °C	1,487 mm	319
1978	36.3 °C25 November 1978	21.2 °C21 August 1978	27.0 °C	1,949 mm	306
1977	37.6 °C22 November 1977	20.4 °C5 August 1977	27.0 °C	1,832 mm	269
1976	36.2 °C23 September 1976	20.9 °C19 July 1976	26.7 °C	1,359 mm	290
1975	35.6 °C18 September 1975	19.8 °C25 July 1975	26.6 °C	1,515 mm	273
1974	36.3 °C25 October 1974	19.4 °C12 June 1974	26.3 °C	2,015 mm	246
1973	35.5 °C16 November 1973	20.1 °C2 August 1973	26.7 °C	2,055 mm	285
1972	36.9 °C23 October 1972	20.6 °C22 July 1972	27.0 °C	1,421 mm	302
1971	35.8 °C26 September 1971	18.9 °C11 July 1971	26.4 °C	1,577 mm	249
1970	36.5 °C22 August 1970	21.2 °C5 July 1970	27.3 °C	1,283 mm	312
1969	36.8 °C2 October 1969	21.5 °C5 September 1969	27.6 °C	909 mm	322
1968	36.5 °C17 October 1968	20.2 °C9 June 1968	26.9 °C	1,296 mm	249
1967	36.7 °C10 December 1967	20.4 °C17 February 1967	27.0 °C	1,574 mm	260
1966	37.7 °C25 October 1966	21.7 °C1 July 1966	27.3 °C	1,591 mm	246
1965	39.0 °C7 November 1965	21.6 °C1 July 1965	27.7 °C	900 mm	267
1964	37.5 °C9 November 1964	20.7 °C3 June 1964	27.2 °C	1,254 mm	230
1963	38.4 °C16 October 1963	20.8 °C17 June 1963	27.7 °C	1,185 mm	250
1962	38.6 °C3 October 1962	19.5 °C20 June 1962	27.4 °C	1,229 mm	259
1961	39.2 °C16 October 1961	21.2 °C8 February 1961	27.4 °C	1,222 mm	248
1960	38.9 °C10 October 1960	21.4 °C22 March 1960	27.7 °C	1,459 mm	259
1959	38.1 °C9 November 1959	19.6 °C7 July 1959	27.4 °C	1,492 mm	242
1958	39.1 °C26 October 1958	22.3 °C25 July 1958	28.4 °C	980 mm	324
1957	39.1 °C4 November 1957	21.2 °C4 February 1957	27.7 °C	1,196 mm	258
1956	38.0 °C6 November 1956	21.3 °C16 March 1956	27.1 °C	1,150 mm	241
1955	38.6 °C9 October 1955	21.0 °C16 July 1955	27.4 °C	1,141 mm	253
1954	38.1 °C7 September 1954	21.2 °C28 July 1954	27.4 °C	875 mm	275
1953	38.4 °C22 October 1953	20.8 °C13 July 1953	27.5 °C	954 mm	275
1952	38.0 °C9 October 1952	21.4 °C23 June 1952	27.4 °C	1,523 mm	258
1951	38.1 °C7 October 1951	21.5 °C10 June 1951	28.0 °C	882 mm	307
1950	39.1 °C10 December 1950	21.5 °C27 May 1950	27.8 °C	1,040 mm	265
1949	38.7 °C9 October 1949	21.5 °C12 April 1949	27.4 °C	1,117 mm	261
1948	38.6 °C5 November 1948	21.4 °C24 June 1948	27.7 °C	1,120 mm	275
1947	38.5 °C9 October 1947	21.4 °C9 August 1947	27.2 °C	1,408 mm	263
1946	39.5 °C12 December 1946	21.4 °C23 June 1946	28.1 °C	754 mm	315
1945	38.9 °C10 November 1945	20.1 °C15 June 1945	27.5 °C	1,285 mm	270
1944	38.9 °C28 September 1944	21.4 °C18 February 1944	27.8 °C	1,507 mm	250
1943	38.1 °C24 October 1943	20.8 °C14 May 1943	26.8 °C	1,492 mm	222
1942	39.6 °C20 November 1942	21.5 °C16 April 1942	28.2 °C	914 mm	324
1941	39.8 °C17 October 1941	22.0 °C18 May 1941	28.6 °C	781 mm	331
1940	37.4 °C14 December 1940	20.3 °C6 July 1940	27.3 °C	1,105 mm	248

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

33.4 °C

+0.8 °C

Hot days (≥ 30 °C)

346 d/yr

+44

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1356 mm

+37 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	31.9 °C	+0.9 °C	410 mm	+190 mm
Feb	31.1 °C	+0.6 °C	279 mm	+35 mm
Mar	31.2 °C	+1.0 °C	253 mm	-25 mm
Apr	32.0 °C	+1.7 °C	157 mm	-67 mm
May	32.1 °C	+1.3 °C	84 mm	-22 mm
Jun	32.4 °C	+0.8 °C	20 mm	-13 mm
Jul	34.1 °C	+1.0 °C	8 mm	-6 mm
Aug	34.7 °C	+0.1 °C	4 mm	-4 mm
Sep	36.3 °C	+0.9 °C	2 mm	-8 mm
Oct	36.0 °C	+0.5 °C	18 mm	-2 mm
Nov	35.7 °C	+1.0 °C	12 mm	-33 mm
Dec	33.6 °C	+0.5 °C	110 mm	-10 mm

The year's extremes

Hottest day

38.7 °C

25 Nov 2025

Coldest day

21.0 °C

14 Jul 2025

Wettest day

110.8 mm

24 Jan 2025

Windiest day

21.7 km/h

23 Sep 2025

Strongest gust

44.6 km/h

8 Oct 2025

Hottest feels-like

41.7 °C

2 Oct 2025

Coldest feels-like

20.9 °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 Olho d’Água das Cunhãs?

Olho d’Água das Cunhãs has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.6 °C and it receives 1,319 mm of precipitation per year.

What is the hottest day ever recorded in Olho d’Água das Cunhãs?

The hottest day measured in Olho d’Água das Cunhãs between 1940 and 2025 was 24 October 2012, reaching 40.2 °C.

What is the coldest day in Olho d’Água das Cunhãs?

The coldest day measured in Olho d’Água das Cunhãs between 1940 and 2025 was 11 July 1971, at 18.9 °C.

Does it snow in Olho d’Água das Cunhãs?

Almost never: Olho d’Água das Cunhãs sees virtually no snow, with about 0 frost days per year.

Has the climate of Olho d’Água das Cunhãs warmed?

Yes: Olho d’Água das Cunhãs warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Olho d’Água das Cunhãs?

The wettest day measured in Olho d’Água das Cunhãs between 1940 and 2025 was 28 February 1978, with 216 mm of rain in 24 hours.

What was the windiest day in Olho d’Água das Cunhãs?

The windiest day measured in Olho d’Água das Cunhãs between 1940 and 2025 was 16 July 1988, with winds reaching 26.9 km/h.

What is the warmest month in Olho d’Água das Cunhãs?

The warmest month in Olho d’Água das Cunhãs is October (29.7 °C on average); the coldest is March (26.0 °C).

How much does it rain in Olho d’Água das Cunhãs?

Olho d’Água das Cunhãs receives on average 1,319 mm of precipitation per year, spread over about 166 rainy days.

Is it sunny in Olho d’Água das Cunhãs?

Olho d’Água das Cunhãs gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.

Are there tropical nights in Olho d’Água das Cunhãs?

Yes: Olho d’Água das Cunhãs has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Olho d’Água das Cunhãs?

In Olho d’Água das Cunhãs, between 1940 and 2025, the highest apparent temperature reached 44.8 °C on 25 October 2017, and the lowest was 18.6 °C on 3 August 2001.

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