Itapecuru Mirim climate — normals and trends

Q: What is the climate of Itapecuru Mirim?

Itapecuru Mirim has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.5 °C and it receives 1,558 mm of precipitation per year.

Q: What is the hottest day ever recorded in Itapecuru Mirim?

The hottest day measured in Itapecuru Mirim between 1940 and 2025 was 9 December 1993, reaching 40.1 °C.

Q: What is the coldest day in Itapecuru Mirim?

The coldest day measured in Itapecuru Mirim between 1940 and 2025 was 22 August 2022, at 19.0 °C.

Q: Does it snow in Itapecuru Mirim?

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

Q: Has the climate of Itapecuru Mirim warmed?

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

Q: What is the wettest day in Itapecuru Mirim?

The wettest day measured in Itapecuru Mirim between 1940 and 2025 was 25 January 1992, with 263 mm of rain in 24 hours.

Q: What was the windiest day in Itapecuru Mirim?

The windiest day measured in Itapecuru Mirim between 1940 and 2025 was 17 July 1947, with winds reaching 27.0 km/h.

Q: What is the warmest month in Itapecuru Mirim?

The warmest month in Itapecuru Mirim is October (29.3 °C on average); the coldest is March (26.0 °C).

Q: How much does it rain in Itapecuru Mirim?

Itapecuru Mirim receives on average 1,558 mm of precipitation per year, spread over about 167 rainy days.

Q: Is it sunny in Itapecuru Mirim?

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

Itapecuru Mirim (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.5 °C and it receives 1,558 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 (29.3 °C on average) and the coldest is March (26.0 °C). Rainfall peaks in March.

Itapecuru Mirim averages 0 frost days, 306 hot days (≥ 30 °C) and 167 rainy days per year.

Itapecuru Mirim 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 9 December 1993) and the coldest 19.0 °C (on 22 August 2022).

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

Itapecuru MirimMaranhão

coords: -3.39°, -44.36°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthOctoberColdest monthMarchWettest monthMarchDriest monthSeptember

Mean daily temperature

27.5°C

Average daily high

32.5°C

Average daily low

23.7°C

Annual rainfall

1,558mm

Sunshine / day

10.7h

Mean relative humidity

74%

Average peak wind

13.6km/h

Seasonal range

3.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

306 d/yr

Rainy days (≥ 1 mm)

167 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.7 °C

Average feels-like low

27.6 °C

Average peak gust

33.5 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

+0.8 °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

40.1 °C

9 December 1993

Coldest day

19.0 °C

22 August 2022

Wettest day

263 mm

25 January 1992

Windiest day

27.0 km/h

17 July 1947

Strongest gust

59.4 km/h

17 January 1983

Hottest feels-like

43.3 °C

4 October 2009

Coldest feels-like

19.7 °C

4 July 1974

Sunniest day

12.0 h

2 January 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	37.6 °C14 October 2025	20.7 °C14 July 2025	28.1 °C	1,237 mm	347
2024	37.5 °C13 October 2024	19.6 °C3 August 2024	28.2 °C	1,159 mm	343
2023	37.1 °C24 November 2023	21.1 °C22 July 2023	27.8 °C	1,301 mm	332
2022	37.5 °C31 October 2022	19.0 °C22 August 2022	27.4 °C	1,668 mm	323
2021	36.3 °C5 September 2021	20.1 °C3 August 2021	27.6 °C	1,454 mm	334
2020	37.9 °C15 October 2020	19.3 °C8 August 2020	27.8 °C	1,907 mm	344
2019	37.3 °C27 October 2019	21.4 °C19 July 2019	27.9 °C	1,911 mm	346
2018	37.9 °C17 November 2018	21.4 °C21 July 2018	27.7 °C	1,705 mm	331
2017	39.2 °C4 December 2017	20.9 °C16 July 2017	28.4 °C	1,365 mm	344
2016	38.7 °C25 November 2016	20.8 °C2 August 2016	28.6 °C	1,116 mm	352
2015	39.5 °C2 December 2015	21.0 °C28 June 2015	28.3 °C	1,159 mm	348
2014	38.1 °C27 October 2014	21.9 °C14 July 2014	28.0 °C	1,419 mm	343
2013	38.2 °C4 October 2013	21.7 °C11 July 2013	28.4 °C	1,414 mm	358
2012	39.5 °C24 October 2012	21.7 °C6 March 2012	28.6 °C	1,176 mm	357
2011	38.9 °C25 September 2011	21.2 °C29 July 2011	27.9 °C	1,995 mm	331
2010	38.8 °C12 November 2010	19.9 °C27 June 2010	28.6 °C	1,371 mm	354
2009	38.4 °C29 November 2009	21.3 °C27 July 2009	27.8 °C	2,173 mm	327
2008	38.2 °C22 November 2008	20.6 °C23 June 2008	27.8 °C	1,787 mm	327
2007	38.7 °C21 January 2007	20.9 °C22 June 2007	28.3 °C	1,286 mm	348
2006	38.3 °C8 October 2006	21.0 °C7 August 2006	28.0 °C	1,435 mm	332
2005	39.2 °C7 January 2005	21.4 °C15 July 2005	28.3 °C	1,254 mm	347
2004	38.3 °C18 November 2004	21.2 °C24 July 2004	27.8 °C	1,636 mm	335
2003	37.1 °C15 November 2003	20.8 °C16 July 2003	27.6 °C	1,547 mm	339
2002	37.8 °C22 October 2002	21.4 °C4 July 2002	27.7 °C	1,529 mm	327
2001	39.0 °C21 December 2001	19.7 °C3 August 2001	27.3 °C	1,725 mm	310
2000	38.0 °C7 November 2000	20.9 °C13 February 2000	27.0 °C	1,615 mm	311
1999	39.5 °C10 November 1999	21.0 °C29 June 1999	27.2 °C	1,957 mm	319
1998	37.9 °C30 October 1998	22.3 °C25 July 1998	28.1 °C	1,276 mm	348
1997	38.3 °C11 October 1997	20.1 °C10 July 1997	27.6 °C	1,299 mm	332
1996	37.6 °C11 November 1996	20.6 °C3 July 1996	27.3 °C	1,944 mm	314
1995	38.0 °C15 October 1995	20.7 °C14 July 1995	27.3 °C	1,741 mm	316
1994	36.8 °C7 December 1994	20.6 °C1 July 1994	27.2 °C	1,944 mm	310
1993	40.1 °C9 December 1993	21.1 °C18 July 1993	28.0 °C	1,271 mm	340
1992	38.2 °C13 January 1992	20.7 °C22 July 1992	28.0 °C	1,245 mm	333
1991	37.2 °C23 December 1991	20.8 °C30 July 1991	27.5 °C	1,475 mm	321
1990	37.3 °C4 December 1990	20.7 °C8 August 1990	27.6 °C	1,031 mm	340
1989	36.3 °C2 November 1989	21.4 °C29 March 1989	27.0 °C	1,980 mm	293
1988	38.1 °C22 November 1988	20.1 °C3 August 1988	27.3 °C	1,829 mm	314
1987	38.5 °C28 November 1987	22.1 °C5 May 1987	28.0 °C	1,129 mm	338
1986	37.2 °C18 December 1986	21.0 °C17 June 1986	27.0 °C	1,928 mm	294
1985	37.2 °C3 October 1985	21.1 °C15 July 1985	26.6 °C	2,647 mm	256
1984	38.5 °C17 December 1984	20.3 °C27 July 1984	27.0 °C	1,919 mm	296
1983	37.5 °C17 November 1983	22.6 °C13 February 1983	28.3 °C	911 mm	349
1982	38.2 °C17 December 1982	21.2 °C10 March 1982	27.5 °C	1,335 mm	321
1981	39.2 °C12 December 1981	20.8 °C28 July 1981	27.8 °C	1,251 mm	334
1980	38.2 °C1 December 1980	21.6 °C18 February 1980	27.4 °C	2,202 mm	320
1979	38.0 °C6 December 1979	20.3 °C23 June 1979	27.2 °C	1,671 mm	331
1978	35.9 °C25 November 1978	20.6 °C2 August 1978	26.9 °C	1,879 mm	305
1977	38.1 °C22 November 1977	21.0 °C13 July 1977	26.9 °C	2,342 mm	287
1976	36.1 °C23 September 1976	19.6 °C20 July 1976	26.7 °C	1,794 mm	292
1975	36.2 °C14 October 1975	19.6 °C27 July 1975	26.5 °C	1,786 mm	269
1974	36.3 °C25 October 1974	19.6 °C12 June 1974	26.1 °C	2,391 mm	235
1973	36.3 °C16 November 1973	20.9 °C2 August 1973	26.7 °C	2,228 mm	302
1972	37.2 °C16 November 1972	21.2 °C18 February 1972	26.9 °C	1,633 mm	311
1971	36.0 °C2 November 1971	19.7 °C11 July 1971	26.5 °C	1,971 mm	250
1970	35.8 °C8 January 1970	20.6 °C19 July 1970	27.1 °C	1,534 mm	322
1969	36.6 °C6 October 1969	21.2 °C30 July 1969	27.3 °C	1,056 mm	323
1968	36.9 °C18 October 1968	20.6 °C4 July 1968	26.7 °C	1,540 mm	259
1967	37.2 °C4 December 1967	20.6 °C17 February 1967	26.8 °C	1,922 mm	270
1966	38.2 °C25 October 1966	21.1 °C10 June 1966	27.2 °C	1,599 mm	258
1965	38.9 °C15 November 1965	21.0 °C27 June 1965	27.4 °C	1,118 mm	265
1964	38.7 °C9 November 1964	21.0 °C14 June 1964	26.9 °C	1,646 mm	224
1963	37.9 °C14 September 1963	20.5 °C17 June 1963	27.2 °C	1,528 mm	250
1962	38.7 °C3 October 1962	20.7 °C20 June 1962	27.2 °C	1,468 mm	275
1961	38.7 °C2 November 1961	21.1 °C18 June 1961	27.1 °C	1,748 mm	242
1960	38.6 °C20 October 1960	21.3 °C11 February 1960	27.3 °C	1,786 mm	260
1959	38.1 °C9 November 1959	21.3 °C28 May 1959	27.3 °C	2,052 mm	264
1958	38.6 °C3 November 1958	21.8 °C4 March 1958	28.3 °C	1,020 mm	344
1957	38.7 °C31 October 1957	21.2 °C2 February 1957	27.4 °C	1,452 mm	252
1956	37.9 °C6 November 1956	20.7 °C16 March 1956	27.2 °C	1,410 mm	271
1955	38.3 °C9 October 1955	21.1 °C9 February 1955	27.1 °C	1,493 mm	263
1954	37.7 °C17 October 1954	21.3 °C27 May 1954	27.1 °C	1,331 mm	281
1953	39.0 °C3 November 1953	21.2 °C17 January 1953	27.3 °C	1,294 mm	276
1952	38.1 °C20 October 1952	21.2 °C30 June 1952	27.2 °C	1,637 mm	267
1951	38.2 °C4 December 1951	21.4 °C30 March 1951	27.8 °C	957 mm	309
1950	39.4 °C29 November 1950	21.5 °C15 March 1950	27.4 °C	1,441 mm	255
1949	38.4 °C21 October 1949	21.3 °C30 May 1949	27.2 °C	1,672 mm	248
1948	38.6 °C6 November 1948	21.4 °C22 January 1948	27.6 °C	1,427 mm	285
1947	38.9 °C7 October 1947	21.8 °C31 March 1947	27.2 °C	1,688 mm	279
1946	39.7 °C12 December 1946	21.7 °C22 April 1946	28.0 °C	921 mm	315
1945	38.2 °C10 November 1945	21.1 °C12 June 1945	27.4 °C	1,208 mm	276
1944	39.2 °C3 November 1944	21.0 °C22 February 1944	27.6 °C	1,717 mm	258
1943	38.1 °C24 October 1943	21.0 °C13 March 1943	27.0 °C	1,508 mm	250
1942	39.4 °C20 November 1942	21.2 °C25 March 1942	28.2 °C	961 mm	342
1941	39.5 °C18 October 1941	21.8 °C15 June 1941	28.3 °C	825 mm	332
1940	37.6 °C8 October 1940	21.0 °C16 February 1940	27.2 °C	1,622 mm	252

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

+0.7 °C

Hot days (≥ 30 °C)

347 d/yr

+41

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1238 mm

-321 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	32.1 °C	+0.6 °C	256 mm	+27 mm
Feb	31.2 °C	+0.4 °C	309 mm	+35 mm
Mar	31.1 °C	+0.7 °C	344 mm	+4 mm
Apr	31.7 °C	+1.3 °C	156 mm	-149 mm
May	31.5 °C	+0.9 °C	68 mm	-103 mm
Jun	31.8 °C	+0.8 °C	17 mm	-40 mm
Jul	33.1 °C	+1.0 °C	16 mm	-11 mm
Aug	34.1 °C	+0.2 °C	4 mm	-6 mm
Sep	35.7 °C	+0.7 °C	1 mm	-7 mm
Oct	36.1 °C	+0.7 °C	5 mm	-9 mm
Nov	35.6 °C	+0.5 °C	5 mm	-27 mm
Dec	34.0 °C	+0.3 °C	60 mm	-35 mm

The year's extremes

Hottest day

37.6 °C

14 Oct 2025

Coldest day

20.7 °C

14 Jul 2025

Wettest day

41.0 mm

4 Mar 2025

Windiest day

21.9 km/h

19 Jun 2025

Strongest gust

51.8 km/h

29 Nov 2025

Hottest feels-like

41.6 °C

11 Sep 2025

Coldest feels-like

23.3 °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 Itapecuru Mirim?

Itapecuru Mirim has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.5 °C and it receives 1,558 mm of precipitation per year.

What is the hottest day ever recorded in Itapecuru Mirim?

The hottest day measured in Itapecuru Mirim between 1940 and 2025 was 9 December 1993, reaching 40.1 °C.

What is the coldest day in Itapecuru Mirim?

The coldest day measured in Itapecuru Mirim between 1940 and 2025 was 22 August 2022, at 19.0 °C.

Does it snow in Itapecuru Mirim?

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

Has the climate of Itapecuru Mirim warmed?

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

What is the wettest day in Itapecuru Mirim?

The wettest day measured in Itapecuru Mirim between 1940 and 2025 was 25 January 1992, with 263 mm of rain in 24 hours.

What was the windiest day in Itapecuru Mirim?

The windiest day measured in Itapecuru Mirim between 1940 and 2025 was 17 July 1947, with winds reaching 27.0 km/h.

What is the warmest month in Itapecuru Mirim?

The warmest month in Itapecuru Mirim is October (29.3 °C on average); the coldest is March (26.0 °C).

How much does it rain in Itapecuru Mirim?

Itapecuru Mirim receives on average 1,558 mm of precipitation per year, spread over about 167 rainy days.

Is it sunny in Itapecuru Mirim?

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

Are there tropical nights in Itapecuru Mirim?

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

What was the most extreme apparent temperature in Itapecuru Mirim?

In Itapecuru Mirim, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 4 October 2009, and the lowest was 19.7 °C on 4 July 1974.

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