Iperó climate — normals and trends

Q: What is the climate of Iperó?

Iperó has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.9 °C and it receives 1,362 mm of precipitation per year.

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

The hottest day measured in Iperó between 1940 and 2025 was 20 January 2015, reaching 39.9 °C.

Q: What is the coldest day in Iperó?

The coldest day measured in Iperó between 1940 and 2025 was 29 July 1990, at -0.1 °C.

Q: Does it snow in Iperó?

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

Q: Has the climate of Iperó warmed?

Yes: Iperó warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Iperó?

The wettest day measured in Iperó between 1940 and 2025 was 19 January 1977, with 128 mm of rain in 24 hours.

Q: What was the windiest day in Iperó?

The windiest day measured in Iperó between 1940 and 2025 was 10 December 2025, with winds reaching 36.6 km/h.

Q: What is the warmest month in Iperó?

The warmest month in Iperó is February (23.7 °C on average); the coldest is July (17.0 °C).

Q: How much does it rain in Iperó?

Iperó receives on average 1,362 mm of precipitation per year, spread over about 146 rainy days.

Q: Is it sunny in Iperó?

Iperó gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.

Iperó (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 20.9 °C and it receives 1,362 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 (23.7 °C on average) and the coldest is July (17.0 °C). Rainfall peaks in January.

Iperó averages 0 frost days, 69 hot days (≥ 30 °C) and 146 rainy days per year.

Iperó has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.

The hottest day of the period reached 39.9 °C (on 20 January 2015) and the coldest -0.1 °C (on 29 July 1990).

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

IperóSão Paulo

coords: -23.35°, -47.69°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthFebruaryColdest monthJulyWettest monthJanuaryDriest monthAugust

Mean daily temperature

20.9°C

Average daily high

26.5°C

Average daily low

16.4°C

Annual rainfall

1,362mm

Sunshine / day

9.7h

Mean relative humidity

77%

Average peak wind

14.8km/h

Seasonal range

6.7°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

69 d/yr

Rainy days (≥ 1 mm)

146 d/yr

Annual snowfall

0.0 cm

Average feels-like high

28.5 °C

Average feels-like low

16.9 °C

Average peak gust

31.8 km/h

Tropical nights (≥ 20 °C)

62 d/yr

Solar radiation

17.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.2 °C

since 1940

+0.3 °C per decade · r² = 0.67 · 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

39.9 °C

20 January 2015

Coldest day

-0.1 °C

29 July 1990

Wettest day

128 mm

19 January 1977

Windiest day

36.6 km/h

10 December 2025

Strongest gust

88.9 km/h

22 September 2025

Hottest feels-like

42.6 °C

20 January 2015

Coldest feels-like

-3.7 °C

29 July 1990

Sunniest day

13.4 h

21 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	36.2 °C30 September 2025	2.4 °C25 June 2025	21.7 °C	916 mm	123	0
2024	37.6 °C26 September 2024	4.9 °C27 August 2024	22.7 °C	1,133 mm	170	0
2023	38.6 °C24 September 2023	7.9 °C15 July 2023	21.9 °C	1,170 mm	123	0
2022	35.4 °C28 February 2022	4.3 °C13 June 2022	21.3 °C	1,143 mm	101	0
2021	37.5 °C20 September 2021	1.8 °C30 July 2021	21.5 °C	921 mm	120	0
2020	39.6 °C6 October 2020	6.1 °C28 May 2020	21.8 °C	994 mm	132	0
2019	38.8 °C27 October 2019	4.6 °C7 July 2019	22.5 °C	986 mm	143	0
2018	37.1 °C12 December 2018	7.0 °C21 May 2018	22.2 °C	954 mm	134	0
2017	36.9 °C13 October 2017	8.3 °C10 June 2017	22.3 °C	1,156 mm	138	0
2016	38.1 °C19 October 2016	4.4 °C13 June 2016	22.0 °C	1,276 mm	149	0
2015	39.9 °C20 January 2015	9.1 °C28 July 2015	22.7 °C	1,526 mm	131	0
2014	39.4 °C5 February 2014	8.1 °C4 June 2014	22.9 °C	907 mm	164	0
2013	38.6 °C27 December 2013	6.7 °C30 July 2013	21.2 °C	1,313 mm	106	0
2012	38.0 °C31 October 2012	5.8 °C21 July 2012	21.9 °C	1,383 mm	130	0
2011	36.2 °C30 September 2011	4.5 °C5 August 2011	21.3 °C	1,230 mm	113	0
2010	34.2 °C5 February 2010	6.5 °C8 June 2010	21.5 °C	1,339 mm	114	0
2009	34.3 °C5 March 2009	4.7 °C4 June 2009	21.3 °C	1,631 mm	77	0
2008	35.4 °C15 October 2008	6.1 °C17 June 2008	20.9 °C	1,312 mm	65	0
2007	35.8 °C23 September 2007	5.7 °C25 May 2007	21.7 °C	1,252 mm	111	0
2006	36.5 °C15 September 2006	6.2 °C6 September 2006	21.6 °C	1,119 mm	94	0
2005	35.4 °C13 October 2005	7.7 °C26 July 2005	21.4 °C	1,216 mm	73	0
2004	36.2 °C26 September 2004	6.9 °C9 August 2004	20.7 °C	1,479 mm	57	0
2003	35.3 °C16 December 2003	6.5 °C18 August 2003	21.2 °C	1,179 mm	83	0
2002	37.1 °C12 October 2002	5.3 °C3 September 2002	22.1 °C	1,151 mm	117	0
2001	34.5 °C8 November 2001	4.6 °C21 June 2001	21.4 °C	1,367 mm	100	0
2000	35.7 °C23 October 2000	2.7 °C17 July 2000	21.0 °C	1,388 mm	81	0
1999	35.6 °C1 October 1999	6.7 °C18 April 1999	20.9 °C	1,471 mm	81	0
1998	34.4 °C3 December 1998	7.8 °C10 June 1998	21.1 °C	1,594 mm	76	0
1997	35.3 °C9 September 1997	5.8 °C9 June 1997	21.2 °C	1,621 mm	92	0
1996	34.6 °C30 January 1996	6.3 °C2 August 1996	20.8 °C	1,713 mm	75	0
1995	34.4 °C11 September 1995	6.6 °C5 June 1995	21.0 °C	1,823 mm	80	0
1994	36.2 °C13 October 1994	1.2 °C26 June 1994	21.5 °C	1,304 mm	93	0
1993	35.1 °C2 January 1993	4.4 °C1 August 1993	21.0 °C	1,492 mm	69	0
1992	33.0 °C15 November 1992	7.9 °C26 August 1992	20.8 °C	1,315 mm	45	0
1991	34.3 °C16 October 1991	5.2 °C24 July 1991	20.8 °C	1,603 mm	59	0
1990	34.9 °C11 October 1990	-0.1 °C29 July 1990	21.0 °C	1,371 mm	110	1
1989	33.8 °C25 October 1989	6.0 °C20 July 1989	20.4 °C	1,504 mm	50	0
1988	36.4 °C27 September 1988	1.3 °C6 June 1988	20.8 °C	1,371 mm	88	0
1987	33.6 °C15 September 1987	3.8 °C9 August 1987	20.8 °C	1,358 mm	84	0
1986	35.3 °C1 November 1986	5.7 °C2 June 1986	21.3 °C	1,405 mm	77	0
1985	38.4 °C17 November 1985	4.4 °C8 June 1985	21.0 °C	1,033 mm	79	0
1984	34.7 °C14 January 1984	3.7 °C27 August 1984	21.5 °C	1,123 mm	89	0
1983	33.0 °C17 February 1983	5.2 °C8 August 1983	20.9 °C	2,295 mm	40	0
1982	33.0 °C3 November 1982	8.5 °C31 July 1982	20.8 °C	1,561 mm	43	0
1981	34.0 °C19 September 1981	0.7 °C20 June 1981	20.6 °C	1,328 mm	53	0
1980	34.6 °C27 October 1980	5.4 °C28 June 1980	21.0 °C	1,297 mm	63	0
1979	34.1 °C7 February 1979	0.9 °C1 June 1979	20.4 °C	1,315 mm	61	0
1978	34.9 °C25 October 1978	3.2 °C2 June 1978	20.9 °C	1,125 mm	86	0
1977	34.5 °C11 March 1977	7.0 °C18 May 1977	21.5 °C	1,369 mm	83	0
1976	33.4 °C19 January 1976	6.3 °C16 August 1976	20.0 °C	1,933 mm	37	0
1975	34.2 °C10 September 1975	3.2 °C18 July 1975	20.8 °C	1,167 mm	81	0
1974	35.5 °C19 November 1974	4.8 °C17 August 1974	20.3 °C	1,431 mm	70	0
1973	34.5 °C22 February 1973	5.3 °C20 June 1973	20.9 °C	1,293 mm	71	0
1972	34.0 °C26 October 1972	3.1 °C9 July 1972	20.7 °C	1,498 mm	56	0
1971	35.9 °C26 January 1971	5.2 °C7 July 1971	20.7 °C	1,048 mm	79	0
1970	34.7 °C8 December 1970	7.4 °C2 September 1970	20.7 °C	1,117 mm	52	0
1969	34.6 °C11 September 1969	4.2 °C11 July 1969	21.2 °C	826 mm	99	0
1968	36.2 °C7 October 1968	4.1 °C18 May 1968	20.2 °C	880 mm	67	0
1967	33.7 °C9 October 1967	3.6 °C9 June 1967	20.8 °C	1,177 mm	55	0
1966	33.2 °C11 September 1966	3.8 °C7 August 1966	20.0 °C	1,471 mm	31	0
1965	34.1 °C10 September 1965	3.2 °C12 July 1965	19.9 °C	1,645 mm	16	0
1964	30.4 °C14 March 1964	6.7 °C27 July 1964	19.4 °C	1,490 mm	4	0
1963	37.7 °C17 October 1963	4.0 °C22 June 1963	21.0 °C	1,122 mm	70	0
1962	32.7 °C8 September 1962	4.0 °C12 July 1962	19.1 °C	1,629 mm	13	0
1961	38.3 °C28 September 1961	10.2 °C5 August 1961	21.3 °C	1,217 mm	60	0
1960	35.0 °C24 September 1960	6.0 °C10 July 1960	19.6 °C	1,468 mm	11	0
1959	33.5 °C7 September 1959	6.1 °C7 June 1959	20.8 °C	1,270 mm	40	0
1958	33.6 °C15 November 1958	5.5 °C23 June 1958	20.2 °C	1,434 mm	43	0
1957	34.1 °C19 October 1957	3.7 °C22 July 1957	19.8 °C	1,479 mm	12	0
1956	33.1 °C8 October 1956	6.9 °C5 June 1956	19.5 °C	1,219 mm	38	0
1955	35.5 °C1 October 1955	6.4 °C26 May 1955	19.9 °C	1,269 mm	35	0
1954	34.2 °C22 September 1954	5.4 °C22 June 1954	20.3 °C	1,357 mm	22	0
1953	32.6 °C21 August 1953	8.6 °C29 July 1953	20.5 °C	1,308 mm	15	0
1952	34.5 °C30 September 1952	4.7 °C16 July 1952	20.0 °C	1,147 mm	18	0
1951	33.9 °C26 September 1951	7.7 °C15 July 1951	20.1 °C	1,131 mm	25	0
1950	34.2 °C17 September 1950	7.1 °C16 July 1950	19.8 °C	1,585 mm	21	0
1949	31.2 °C13 October 1949	8.1 °C5 July 1949	19.6 °C	1,917 mm	4	0
1948	36.2 °C26 September 1948	7.8 °C15 June 1948	20.2 °C	1,287 mm	28	0
1947	32.6 °C8 January 1947	5.1 °C8 July 1947	19.5 °C	1,880 mm	12	0
1946	30.7 °C18 October 1946	5.6 °C17 June 1946	20.2 °C	2,269 mm	6	0
1945	31.9 °C28 September 1945	8.6 °C28 June 1945	20.1 °C	2,136 mm	1	0
1944	35.6 °C7 September 1944	7.9 °C15 July 1944	20.5 °C	1,318 mm	29	0
1943	32.6 °C19 January 1943	8.3 °C26 June 1943	19.6 °C	1,091 mm	16	0
1942	38.0 °C27 November 1942	3.8 °C25 June 1942	20.1 °C	938 mm	57	0
1941	31.0 °C9 January 1941	7.3 °C4 September 1941	20.1 °C	2,254 mm	7	0
1940	33.1 °C12 September 1940	8.3 °C19 August 1940	20.5 °C	1,590 mm	6	0

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

28.0 °C

+1.5 °C

Hot days (≥ 30 °C)

123 d/yr

+54

Frost days (< 0 °C)

0 d/yr

Annual rainfall

916 mm

-446 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	29.9 °C	+1.3 °C	175 mm	-50 mm
Feb	31.5 °C	+2.7 °C	113 mm	-70 mm
Mar	31.4 °C	+3.2 °C	73 mm	-64 mm
Apr	27.2 °C	+0.5 °C	99 mm	+33 mm
May	26.5 °C	+2.2 °C	12 mm	-55 mm
Jun	23.7 °C	+0.5 °C	49 mm	-2 mm
Jul	23.6 °C	+0.3 °C	7 mm	-38 mm
Aug	26.4 °C	+1.0 °C	5 mm	-33 mm
Sep	29.1 °C	+2.3 °C	15 mm	-63 mm
Oct	27.5 °C	+0.3 °C	105 mm	-25 mm
Nov	28.1 °C	+0.4 °C	90 mm	-52 mm
Dec	31.0 °C	+2.9 °C	173 mm	-26 mm

The year's extremes

Hottest day

36.2 °C

30 Sep 2025

Coldest day

2.4 °C

25 Jun 2025

Wettest day

54.7 mm

9 Dec 2025

Windiest day

36.6 km/h

10 Dec 2025

Strongest gust

88.9 km/h

22 Sep 2025

Hottest feels-like

40.0 °C

26 Dec 2025

Coldest feels-like

-1.3 °C

25 Jun 2025

Sunniest day

13.4 h

21 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 Iperó?

Iperó has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.9 °C and it receives 1,362 mm of precipitation per year.

What is the hottest day ever recorded in Iperó?

The hottest day measured in Iperó between 1940 and 2025 was 20 January 2015, reaching 39.9 °C.

What is the coldest day in Iperó?

The coldest day measured in Iperó between 1940 and 2025 was 29 July 1990, at -0.1 °C.

Does it snow in Iperó?

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

Has the climate of Iperó warmed?

Yes: Iperó warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Iperó?

The wettest day measured in Iperó between 1940 and 2025 was 19 January 1977, with 128 mm of rain in 24 hours.

What was the windiest day in Iperó?

The windiest day measured in Iperó between 1940 and 2025 was 10 December 2025, with winds reaching 36.6 km/h.

What is the warmest month in Iperó?

The warmest month in Iperó is February (23.7 °C on average); the coldest is July (17.0 °C).

How much does it rain in Iperó?

Iperó receives on average 1,362 mm of precipitation per year, spread over about 146 rainy days.

Is it sunny in Iperó?

Iperó gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.

Are there tropical nights in Iperó?

Yes: Iperó has on average 62 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Iperó?

In Iperó, between 1940 and 2025, the highest apparent temperature reached 42.6 °C on 20 January 2015, and the lowest was -3.7 °C on 29 July 1990.

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