Itatiaia climate — normals and trends

Q: What is the climate of Itatiaia?

Itatiaia has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.2 °C and it receives 2,484 mm of precipitation per year.

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

The hottest day measured in Itatiaia between 1940 and 2025 was 18 November 2023, reaching 34.9 °C.

Q: What is the coldest day in Itatiaia?

The coldest day measured in Itatiaia between 1940 and 2025 was 27 June 1994, at 2.7 °C.

Q: Does it snow in Itatiaia?

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

Q: Has the climate of Itatiaia warmed?

Yes: Itatiaia warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Itatiaia?

The wettest day measured in Itatiaia between 1940 and 2025 was 8 December 1946, with 130 mm of rain in 24 hours.

Q: What was the windiest day in Itatiaia?

The windiest day measured in Itatiaia between 1940 and 2025 was 13 July 2023, with winds reaching 20.3 km/h.

Q: What is the warmest month in Itatiaia?

The warmest month in Itatiaia is February (22.0 °C on average); the coldest is July (15.9 °C).

Q: How much does it rain in Itatiaia?

Itatiaia receives on average 2,484 mm of precipitation per year, spread over about 209 rainy days.

Q: Is it sunny in Itatiaia?

Itatiaia gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Itatiaia (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 19.2 °C and it receives 2,484 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 (22.0 °C on average) and the coldest is July (15.9 °C). Rainfall peaks in January.

Itatiaia averages 0 frost days, 13 hot days (≥ 30 °C) and 209 rainy days per year.

Itatiaia has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.

The hottest day of the period reached 34.9 °C (on 18 November 2023) and the coldest 2.7 °C (on 27 June 1994).

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

ItatiaiaRio de Janeiro

coords: -22.50°, -44.56°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthFebruaryColdest monthJulyWettest monthJanuaryDriest monthJuly

Mean daily temperature

19.2°C

Average daily high

24.0°C

Average daily low

15.2°C

Annual rainfall

2,484mm

Sunshine / day

9.1h

Mean relative humidity

81%

Average peak wind

7.5km/h

Seasonal range

6.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

13 d/yr

Rainy days (≥ 1 mm)

209 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.4 °C

Average feels-like low

16.0 °C

Average peak gust

25.6 km/h

Tropical nights (≥ 20 °C)

8 d/yr

Solar radiation

16.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.60 · 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

34.9 °C

18 November 2023

Coldest day

2.7 °C

27 June 1994

Wettest day

130 mm

8 December 1946

Windiest day

20.3 km/h

13 July 2023

Strongest gust

72.4 km/h

27 October 2018

Hottest feels-like

39.9 °C

17 January 1995

Coldest feels-like

0.0 °C

27 June 1994

Sunniest day

13.4 h

16 December 1942

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	33.0 °C17 February 2025	6.4 °C30 July 2025	19.5 °C	1,642 mm	25
2024	32.9 °C2 October 2024	5.7 °C14 August 2024	20.4 °C	2,001 mm	31
2023	34.9 °C18 November 2023	6.2 °C6 July 2023	20.1 °C	2,263 mm	37
2022	31.4 °C27 October 2022	5.8 °C1 September 2022	19.1 °C	2,329 mm	16
2021	32.2 °C14 September 2021	4.6 °C1 July 2021	19.1 °C	2,233 mm	16
2020	33.9 °C2 October 2020	5.1 °C26 August 2020	19.6 °C	2,610 mm	25
2019	33.3 °C24 February 2019	6.4 °C11 July 2019	20.4 °C	2,204 mm	35
2018	32.1 °C18 January 2018	6.1 °C21 May 2018	20.1 °C	2,228 mm	23
2017	31.7 °C19 February 2017	7.8 °C1 August 2017	19.9 °C	1,732 mm	19
2016	32.5 °C10 February 2016	6.0 °C14 June 2016	20.1 °C	2,221 mm	23
2015	33.8 °C24 September 2015	8.9 °C27 June 2015	20.6 °C	2,359 mm	38
2014	33.2 °C3 January 2014	6.9 °C6 August 2014	20.1 °C	1,619 mm	29
2013	32.9 °C11 November 2013	6.9 °C26 July 2013	19.5 °C	2,580 mm	20
2012	33.4 °C19 September 2012	6.4 °C21 July 2012	19.7 °C	1,986 mm	23
2011	31.8 °C10 February 2011	6.1 °C6 June 2011	19.3 °C	2,243 mm	19
2010	33.2 °C8 February 2010	6.0 °C13 June 2010	19.9 °C	2,330 mm	42
2009	32.1 °C19 November 2009	5.8 °C4 June 2009	20.0 °C	3,076 mm	17
2008	32.2 °C26 October 2008	4.9 °C15 July 2008	19.3 °C	2,814 mm	17
2007	32.6 °C30 December 2007	5.1 °C30 July 2007	19.9 °C	2,075 mm	26
2006	33.3 °C25 January 2006	8.0 °C6 September 2006	19.7 °C	2,249 mm	17
2005	33.3 °C14 October 2005	5.9 °C10 July 2005	19.8 °C	2,469 mm	16
2004	31.6 °C31 October 2004	6.4 °C24 July 2004	19.3 °C	2,628 mm	5
2003	33.1 °C16 December 2003	8.3 °C22 August 2003	19.9 °C	2,233 mm	25
2002	32.2 °C16 October 2002	8.7 °C3 September 2002	20.4 °C	2,118 mm	26
2001	30.2 °C6 January 2001	7.9 °C15 July 2001	19.7 °C	2,133 mm	4
2000	31.8 °C15 January 2000	4.4 °C18 July 2000	19.2 °C	2,171 mm	12
1999	31.8 °C2 February 1999	5.9 °C16 August 1999	18.9 °C	2,273 mm	13
1998	33.3 °C31 January 1998	6.1 °C7 June 1998	19.7 °C	2,433 mm	17
1997	32.4 °C9 September 1997	6.0 °C12 August 1997	19.8 °C	2,208 mm	30
1996	32.4 °C25 January 1996	5.3 °C24 July 1996	19.2 °C	3,101 mm	23
1995	34.0 °C17 January 1995	6.7 °C6 September 1995	19.8 °C	2,823 mm	32
1994	32.6 °C3 October 1994	2.7 °C27 June 1994	20.0 °C	2,416 mm	32
1993	32.9 °C17 November 1993	7.5 °C23 June 1993	19.9 °C	2,379 mm	24
1992	30.9 °C22 February 1992	7.1 °C16 June 1992	19.6 °C	2,405 mm	7
1991	30.2 °C26 November 1991	7.4 °C9 July 1991	19.4 °C	2,427 mm	2
1990	31.3 °C15 November 1990	4.6 °C23 June 1990	19.7 °C	2,199 mm	14
1989	30.2 °C22 February 1989	5.7 °C18 July 1989	19.1 °C	2,487 mm	3
1988	31.8 °C27 September 1988	4.2 °C6 June 1988	19.3 °C	2,639 mm	17
1987	31.5 °C9 January 1987	4.9 °C26 June 1987	19.8 °C	2,223 mm	9
1986	31.0 °C7 October 1986	4.8 °C13 July 1986	19.6 °C	2,352 mm	5
1985	31.2 °C27 August 1985	4.1 °C9 June 1985	19.2 °C	2,438 mm	5
1984	32.1 °C13 January 1984	6.6 °C1 August 1984	19.9 °C	2,181 mm	22
1983	31.2 °C17 February 1983	5.3 °C7 August 1983	19.5 °C	3,186 mm	5
1982	30.5 °C4 November 1982	8.1 °C1 August 1982	19.2 °C	2,883 mm	2
1981	31.8 °C20 September 1981	4.6 °C22 July 1981	19.1 °C	2,327 mm	11
1980	31.6 °C27 October 1980	5.9 °C29 June 1980	19.4 °C	2,261 mm	3
1979	30.5 °C25 October 1979	3.6 °C1 June 1979	18.9 °C	2,708 mm	3
1978	31.8 °C31 January 1978	4.5 °C16 August 1978	19.1 °C	2,196 mm	10
1977	31.3 °C9 February 1977	8.3 °C18 May 1977	19.8 °C	2,341 mm	5
1976	31.6 °C25 January 1976	6.7 °C2 June 1976	18.9 °C	2,899 mm	6
1975	30.8 °C13 February 1975	4.6 °C8 July 1975	19.0 °C	2,579 mm	3
1974	31.0 °C26 September 1974	5.4 °C6 July 1974	19.1 °C	2,401 mm	3
1973	33.4 °C11 February 1973	5.9 °C22 June 1973	19.7 °C	2,426 mm	12
1972	31.9 °C29 November 1972	6.0 °C23 June 1972	19.3 °C	2,467 mm	6
1971	31.5 °C25 January 1971	6.3 °C2 June 1971	19.0 °C	2,161 mm	13
1970	30.8 °C8 March 1970	6.7 °C14 August 1970	19.0 °C	1,899 mm	5
1969	31.5 °C9 January 1969	7.5 °C19 July 1969	19.2 °C	2,289 mm	12
1968	32.0 °C15 December 1968	5.4 °C14 July 1968	18.1 °C	1,551 mm	8
1967	30.6 °C2 December 1967	6.6 °C21 July 1967	19.3 °C	3,030 mm	4
1966	30.7 °C5 December 1966	7.5 °C18 September 1966	18.7 °C	2,754 mm	6
1965	30.2 °C3 September 1965	5.5 °C13 July 1965	18.6 °C	2,897 mm	4
1964	29.3 °C18 February 1964	4.5 °C29 July 1964	17.9 °C	2,808 mm	0
1963	32.4 °C14 October 1963	7.1 °C21 May 1963	19.2 °C	2,084 mm	18
1962	29.1 °C3 December 1962	5.1 °C19 June 1962	17.8 °C	3,306 mm	0
1961	34.5 °C28 September 1961	8.6 °C29 June 1961	19.5 °C	2,705 mm	20
1960	33.3 °C25 September 1960	4.7 °C15 July 1960	18.2 °C	2,783 mm	5
1959	30.4 °C30 January 1959	7.3 °C22 August 1959	19.0 °C	2,259 mm	1
1958	31.3 °C15 November 1958	6.1 °C25 June 1958	18.8 °C	2,364 mm	8
1957	31.2 °C19 October 1957	4.1 °C23 July 1957	18.6 °C	2,584 mm	2
1956	31.4 °C2 February 1956	5.4 °C18 August 1956	18.0 °C	2,025 mm	14
1955	32.2 °C1 October 1955	6.3 °C17 July 1955	18.5 °C	2,193 mm	3
1954	32.0 °C19 September 1954	7.6 °C2 August 1954	18.8 °C	3,236 mm	8
1953	29.8 °C13 January 1953	5.7 °C29 July 1953	18.8 °C	2,754 mm	0
1952	30.6 °C4 September 1952	5.3 °C16 July 1952	18.6 °C	3,216 mm	2
1951	31.7 °C22 November 1951	5.4 °C4 June 1951	18.3 °C	2,426 mm	5
1950	30.4 °C18 September 1950	7.0 °C14 July 1950	18.5 °C	2,771 mm	3
1949	30.1 °C18 March 1949	7.1 °C4 July 1949	18.2 °C	2,939 mm	1
1948	33.3 °C27 September 1948	7.0 °C6 June 1948	18.6 °C	2,466 mm	4
1947	31.1 °C7 January 1947	4.4 °C4 August 1947	18.1 °C	2,939 mm	7
1946	29.9 °C19 October 1946	6.9 °C26 July 1946	19.0 °C	3,338 mm	0
1945	29.6 °C28 September 1945	7.1 °C14 July 1945	18.8 °C	3,227 mm	0
1944	31.8 °C7 September 1944	6.1 °C23 August 1944	18.6 °C	2,930 mm	4
1943	28.6 °C19 January 1943	7.0 °C6 September 1943	17.6 °C	2,306 mm	0
1942	32.0 °C6 October 1942	3.4 °C25 June 1942	17.9 °C	2,354 mm	6
1941	31.1 °C12 January 1941	7.0 °C9 June 1941	18.7 °C	3,391 mm	2
1940	30.3 °C12 September 1940	8.5 °C27 September 1940	18.9 °C	3,433 mm	2

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

24.6 °C

+0.6 °C

Hot days (≥ 30 °C)

25 d/yr

+12

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1642 mm

-842 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	26.9 °C	+0.5 °C	345 mm	-51 mm
Feb	29.3 °C	+2.7 °C	59 mm	-266 mm
Mar	26.8 °C	+1.1 °C	272 mm	-42 mm
Apr	24.2 °C	0.0 °C	172 mm	+17 mm
May	23.0 °C	+0.7 °C	39 mm	-44 mm
Jun	22.0 °C	+0.5 °C	35 mm	-18 mm
Jul	20.6 °C	-0.6 °C	33 mm	-14 mm
Aug	22.6 °C	-0.1 °C	20 mm	-39 mm
Sep	23.8 °C	0.0 °C	66 mm	-54 mm
Oct	24.0 °C	-0.3 °C	163 mm	-69 mm
Nov	25.0 °C	+0.5 °C	203 mm	-110 mm
Dec	27.6 °C	+2.2 °C	236 mm	-154 mm

The year's extremes

Hottest day

33.0 °C

17 Feb 2025

Coldest day

6.4 °C

30 Jul 2025

Wettest day

45.1 mm

27 Oct 2025

Windiest day

20.0 km/h

11 Dec 2025

Strongest gust

65.5 km/h

10 Dec 2025

Hottest feels-like

37.6 °C

17 Feb 2025

Coldest feels-like

4.4 °C

30 Jul 2025

Sunniest day

13.4 h

23 Dec 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 Itatiaia?

Itatiaia has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.2 °C and it receives 2,484 mm of precipitation per year.

What is the hottest day ever recorded in Itatiaia?

The hottest day measured in Itatiaia between 1940 and 2025 was 18 November 2023, reaching 34.9 °C.

What is the coldest day in Itatiaia?

The coldest day measured in Itatiaia between 1940 and 2025 was 27 June 1994, at 2.7 °C.

Does it snow in Itatiaia?

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

Has the climate of Itatiaia warmed?

Yes: Itatiaia warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Itatiaia?

The wettest day measured in Itatiaia between 1940 and 2025 was 8 December 1946, with 130 mm of rain in 24 hours.

What was the windiest day in Itatiaia?

The windiest day measured in Itatiaia between 1940 and 2025 was 13 July 2023, with winds reaching 20.3 km/h.

What is the warmest month in Itatiaia?

The warmest month in Itatiaia is February (22.0 °C on average); the coldest is July (15.9 °C).

How much does it rain in Itatiaia?

Itatiaia receives on average 2,484 mm of precipitation per year, spread over about 209 rainy days.

Is it sunny in Itatiaia?

Itatiaia gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Are there tropical nights in Itatiaia?

Yes: Itatiaia has on average 8 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Itatiaia?

In Itatiaia, between 1940 and 2025, the highest apparent temperature reached 39.9 °C on 17 January 1995, and the lowest was 0.0 °C on 27 June 1994.

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