Iguaba Grande climate — normals and trends

Q: What is the climate of Iguaba Grande?

Iguaba Grande has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 23.1 °C and it receives 1,361 mm of precipitation per year.

Q: What is the hottest day ever recorded in Iguaba Grande?

The hottest day measured in Iguaba Grande between 1940 and 2025 was 27 September 2023, reaching 35.6 °C.

Q: What is the coldest day in Iguaba Grande?

The coldest day measured in Iguaba Grande between 1940 and 2025 was 18 July 2000, at 11.9 °C.

Q: Does it snow in Iguaba Grande?

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

Q: Has the climate of Iguaba Grande warmed?

Yes: Iguaba Grande warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Iguaba Grande?

The wettest day measured in Iguaba Grande between 1940 and 2025 was 27 March 1994, with 191 mm of rain in 24 hours.

Q: What was the windiest day in Iguaba Grande?

The windiest day measured in Iguaba Grande between 1940 and 2025 was 19 May 2022, with winds reaching 43.4 km/h.

Q: What is the warmest month in Iguaba Grande?

The warmest month in Iguaba Grande is February (25.7 °C on average); the coldest is July (20.6 °C).

Q: How much does it rain in Iguaba Grande?

Iguaba Grande receives on average 1,361 mm of precipitation per year, spread over about 154 rainy days.

Q: Is it sunny in Iguaba Grande?

Iguaba Grande gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.

Iguaba Grande (Brazil) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 23.1 °C and it receives 1,361 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 February (25.7 °C on average) and the coldest is July (20.6 °C). Rainfall peaks in December.

Iguaba Grande averages 0 frost days, 24 hot days (≥ 30 °C) and 154 rainy days per year.

Iguaba Grande has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.6 °C (on 27 September 2023) and the coldest 11.9 °C (on 18 July 2000).

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

Iguaba GrandeRio de Janeiro

coords: -22.84°, -42.23°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthFebruaryColdest monthJulyWettest monthDecemberDriest monthAugust

Mean daily temperature

23.1°C

Average daily high

25.8°C

Average daily low

21.0°C

Annual rainfall

1,361mm

Sunshine / day

9.9h

Mean relative humidity

82%

Average peak wind

18.2km/h

Seasonal range

5.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

24 d/yr

Rainy days (≥ 1 mm)

154 d/yr

Annual snowfall

0.0 cm

Average feels-like high

29.0 °C

Average feels-like low

22.8 °C

Average peak gust

31.2 km/h

Tropical nights (≥ 20 °C)

232 d/yr

Solar radiation

17.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.2 °C

since 1940

+0.1 °C per decade · r² = 0.49 · 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

35.6 °C

27 September 2023

Coldest day

11.9 °C

18 July 2000

Wettest day

191 mm

27 March 1994

Windiest day

43.4 km/h

19 May 2022

Strongest gust

74.2 km/h

11 August 2022

Hottest feels-like

42.7 °C

24 February 2019

Coldest feels-like

10.0 °C

31 May 1979

Sunniest day

13.4 h

4 January 1941

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	32.8 °C21 January 2025	15.0 °C14 June 2025	23.3 °C	794 mm	38
2024	33.1 °C21 March 2024	13.8 °C14 August 2024	24.0 °C	1,312 mm	49
2023	35.6 °C27 September 2023	15.0 °C8 July 2023	23.7 °C	1,103 mm	51
2022	32.2 °C23 April 2022	14.7 °C31 August 2022	23.1 °C	1,381 mm	30
2021	32.8 °C5 March 2021	14.1 °C30 July 2021	22.9 °C	1,011 mm	23
2020	33.3 °C2 October 2020	15.3 °C3 August 2020	23.4 °C	1,626 mm	26
2019	33.4 °C3 January 2019	14.9 °C12 July 2019	24.1 °C	1,208 mm	61
2018	32.5 °C18 January 2018	15.7 °C12 July 2018	23.8 °C	1,324 mm	42
2017	32.4 °C10 January 2017	15.8 °C4 July 2017	23.6 °C	911 mm	49
2016	32.9 °C27 December 2016	13.9 °C13 June 2016	23.8 °C	1,129 mm	68
2015	32.8 °C15 December 2015	16.8 °C5 August 2015	24.1 °C	1,074 mm	63
2014	32.0 °C27 February 2014	14.3 °C8 August 2014	23.5 °C	902 mm	32
2013	33.5 °C12 November 2013	15.0 °C31 July 2013	23.3 °C	1,495 mm	35
2012	32.7 °C26 December 2012	14.6 °C29 September 2012	23.3 °C	1,003 mm	29
2011	31.7 °C10 February 2011	13.5 °C9 July 2011	22.8 °C	1,246 mm	18
2010	34.3 °C14 March 2010	15.1 °C8 June 2010	23.6 °C	1,287 mm	66
2009	32.8 °C3 December 2009	13.8 °C4 June 2009	23.6 °C	1,534 mm	38
2008	32.6 °C19 January 2008	15.5 °C15 July 2008	23.0 °C	1,878 mm	21
2007	33.4 °C1 November 2007	14.1 °C31 July 2007	23.4 °C	1,288 mm	26
2006	32.7 °C21 December 2006	15.2 °C6 September 2006	23.5 °C	1,045 mm	25
2005	32.5 °C14 October 2005	16.8 °C10 July 2005	23.8 °C	1,463 mm	34
2004	31.3 °C27 November 2004	15.4 °C11 August 2004	23.1 °C	1,372 mm	18
2003	32.7 °C16 December 2003	15.9 °C19 August 2003	23.7 °C	1,450 mm	50
2002	32.2 °C20 March 2002	15.2 °C3 September 2002	24.0 °C	1,137 mm	43
2001	32.0 °C21 July 2001	15.8 °C19 September 2001	23.6 °C	970 mm	36
2000	31.0 °C16 December 2000	11.9 °C18 July 2000	23.1 °C	1,108 mm	18
1999	32.2 °C29 March 1999	15.2 °C15 August 1999	22.7 °C	1,070 mm	21
1998	32.6 °C10 February 1998	15.5 °C9 June 1998	23.5 °C	1,386 mm	43
1997	32.9 °C9 September 1997	15.3 °C11 August 1997	23.2 °C	1,094 mm	27
1996	33.2 °C18 January 1996	14.7 °C5 August 1996	23.0 °C	1,322 mm	35
1995	33.6 °C10 January 1995	16.0 °C7 June 1995	23.5 °C	1,659 mm	39
1994	32.8 °C26 January 1994	12.7 °C27 June 1994	23.5 °C	1,503 mm	46
1993	32.2 °C17 January 1993	15.5 °C24 June 1993	23.7 °C	1,132 mm	49
1992	32.2 °C22 February 1992	15.3 °C26 July 1992	23.3 °C	1,445 mm	15
1991	32.4 °C27 December 1991	14.9 °C4 August 1991	23.2 °C	1,379 mm	21
1990	31.8 °C16 November 1990	15.5 °C26 September 1990	23.5 °C	930 mm	25
1989	31.3 °C22 February 1989	14.8 °C9 July 1989	23.0 °C	1,427 mm	14
1988	32.2 °C29 January 1988	13.7 °C6 June 1988	23.1 °C	1,665 mm	24
1987	31.7 °C8 May 1987	15.4 °C26 June 1987	23.5 °C	1,495 mm	21
1986	32.2 °C14 April 1986	15.5 °C10 July 1986	23.5 °C	1,171 mm	21
1985	31.5 °C4 February 1985	14.7 °C14 June 1985	22.9 °C	1,507 mm	11
1984	31.3 °C26 February 1984	14.8 °C27 August 1984	23.5 °C	1,134 mm	27
1983	31.7 °C26 February 1983	13.7 °C7 August 1983	23.3 °C	1,787 mm	20
1982	30.9 °C20 November 1982	15.9 °C1 August 1982	23.0 °C	1,492 mm	6
1981	31.2 °C29 September 1981	15.5 °C22 August 1981	22.9 °C	1,299 mm	12
1980	30.9 °C12 February 1980	15.2 °C27 September 1980	23.3 °C	1,352 mm	14
1979	30.9 °C15 December 1979	13.8 °C1 June 1979	22.6 °C	1,648 mm	6
1978	31.7 °C31 January 1978	14.2 °C2 June 1978	23.1 °C	1,058 mm	15
1977	32.2 °C28 March 1977	16.4 °C18 May 1977	23.6 °C	1,026 mm	18
1976	31.9 °C8 December 1976	15.1 °C16 August 1976	23.0 °C	1,278 mm	16
1975	31.5 °C17 January 1975	13.9 °C8 July 1975	22.8 °C	1,582 mm	11
1974	31.8 °C6 November 1974	15.6 °C16 June 1974	23.1 °C	1,136 mm	16
1973	31.8 °C3 March 1973	16.0 °C20 June 1973	23.5 °C	1,676 mm	25
1972	32.2 °C6 January 1972	16.1 °C24 June 1972	23.4 °C	1,515 mm	17
1971	31.9 °C31 January 1971	15.7 °C21 July 1971	23.0 °C	1,162 mm	31
1970	31.4 °C5 February 1970	15.8 °C11 August 1970	22.9 °C	834 mm	19
1969	32.9 °C17 February 1969	15.9 °C19 July 1969	23.1 °C	1,128 mm	19
1968	32.4 °C24 December 1968	14.8 °C18 May 1968	22.1 °C	1,170 mm	15
1967	31.4 °C5 March 1967	15.6 °C10 June 1967	23.2 °C	1,439 mm	10
1966	31.8 °C5 December 1966	15.0 °C24 September 1966	22.9 °C	2,144 mm	23
1965	31.2 °C29 October 1965	15.3 °C12 July 1965	22.9 °C	1,958 mm	13
1964	31.3 °C17 February 1964	14.7 °C23 July 1964	22.1 °C	2,263 mm	8
1963	31.8 °C5 December 1963	15.1 °C14 July 1963	23.0 °C	967 mm	16
1962	31.3 °C18 February 1962	14.3 °C26 August 1962	22.2 °C	1,877 mm	4
1961	31.2 °C14 October 1961	16.2 °C1 August 1961	23.3 °C	1,539 mm	15
1960	31.1 °C25 October 1960	15.0 °C14 July 1960	22.4 °C	1,622 mm	11
1959	31.6 °C26 February 1959	15.5 °C13 June 1959	23.2 °C	1,257 mm	21
1958	31.8 °C14 December 1958	14.7 °C22 September 1958	22.9 °C	1,194 mm	25
1957	31.6 °C3 February 1957	15.0 °C4 August 1957	22.6 °C	1,424 mm	9
1956	32.6 °C27 January 1956	14.9 °C13 August 1956	22.0 °C	1,114 mm	22
1955	30.9 °C16 March 1955	14.7 °C4 August 1955	22.4 °C	1,031 mm	8
1954	32.1 °C22 October 1954	15.7 °C30 August 1954	22.8 °C	1,502 mm	13
1953	31.3 °C30 January 1953	15.2 °C29 July 1953	22.8 °C	1,482 mm	11
1952	32.3 °C1 October 1952	15.6 °C16 July 1952	22.7 °C	1,861 mm	5
1951	33.1 °C23 November 1951	15.4 °C14 August 1951	22.4 °C	1,074 mm	20
1950	31.5 °C20 February 1950	15.1 °C12 July 1950	22.6 °C	1,675 mm	10
1949	30.5 °C6 January 1949	14.8 °C27 August 1949	22.3 °C	1,646 mm	7
1948	32.4 °C27 January 1948	15.7 °C19 August 1948	22.6 °C	1,079 mm	19
1947	32.2 °C15 January 1947	13.8 °C4 August 1947	22.4 °C	1,580 mm	20
1946	31.7 °C4 December 1946	15.3 °C26 July 1946	23.1 °C	1,543 mm	15
1945	31.2 °C13 November 1945	15.9 °C26 June 1945	23.0 °C	1,471 mm	8
1944	30.4 °C26 October 1944	15.4 °C22 August 1944	22.7 °C	1,607 mm	7
1943	30.8 °C19 January 1943	14.9 °C25 July 1943	21.9 °C	1,493 mm	4
1942	31.6 °C27 November 1942	13.5 °C23 August 1942	22.1 °C	1,308 mm	10
1941	31.9 °C12 January 1941	14.8 °C1 July 1941	22.8 °C	1,690 mm	11
1940	31.2 °C4 February 1940	15.6 °C27 September 1940	23.0 °C	1,674 mm	11

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

26.2 °C

+0.4 °C

Hot days (≥ 30 °C)

38 d/yr

+14

Frost days (< 0 °C)

0 d/yr

Annual rainfall

794 mm

-567 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.8 °C	+0.8 °C	92 mm	-94 mm
Feb	29.9 °C	+1.5 °C	2 mm	-136 mm
Mar	28.5 °C	+0.8 °C	86 mm	-78 mm
Apr	26.5 °C	+0.1 °C	118 mm	+15 mm
May	25.7 °C	+0.9 °C	25 mm	-47 mm
Jun	24.8 °C	+0.7 °C	37 mm	-14 mm
Jul	22.8 °C	-0.9 °C	41 mm	-8 mm
Aug	23.8 °C	-0.3 °C	19 mm	-30 mm
Sep	24.7 °C	+0.2 °C	51 mm	-22 mm
Oct	24.9 °C	-0.2 °C	106 mm	-2 mm
Nov	25.5 °C	-0.1 °C	96 mm	-74 mm
Dec	28.2 °C	+1.3 °C	123 mm	-76 mm

The year's extremes

Hottest day

32.8 °C

21 Jan 2025

Coldest day

15.0 °C

14 Jun 2025

Wettest day

32.7 mm

2 Nov 2025

Windiest day

35.9 km/h

25 Nov 2025

Strongest gust

59.4 km/h

25 Nov 2025

Hottest feels-like

41.2 °C

20 Jan 2025

Coldest feels-like

13.4 °C

30 Jul 2025

Sunniest day

13.3 h

10 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 Iguaba Grande?

Iguaba Grande has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 23.1 °C and it receives 1,361 mm of precipitation per year.

What is the hottest day ever recorded in Iguaba Grande?

The hottest day measured in Iguaba Grande between 1940 and 2025 was 27 September 2023, reaching 35.6 °C.

What is the coldest day in Iguaba Grande?

The coldest day measured in Iguaba Grande between 1940 and 2025 was 18 July 2000, at 11.9 °C.

Does it snow in Iguaba Grande?

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

Has the climate of Iguaba Grande warmed?

Yes: Iguaba Grande warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Iguaba Grande?

The wettest day measured in Iguaba Grande between 1940 and 2025 was 27 March 1994, with 191 mm of rain in 24 hours.

What was the windiest day in Iguaba Grande?

The windiest day measured in Iguaba Grande between 1940 and 2025 was 19 May 2022, with winds reaching 43.4 km/h.

What is the warmest month in Iguaba Grande?

The warmest month in Iguaba Grande is February (25.7 °C on average); the coldest is July (20.6 °C).

How much does it rain in Iguaba Grande?

Iguaba Grande receives on average 1,361 mm of precipitation per year, spread over about 154 rainy days.

Is it sunny in Iguaba Grande?

Iguaba Grande gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.

Are there tropical nights in Iguaba Grande?

Yes: Iguaba Grande has on average 232 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Iguaba Grande?

In Iguaba Grande, between 1940 and 2025, the highest apparent temperature reached 42.7 °C on 24 February 2019, and the lowest was 10.0 °C on 31 May 1979.

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