Piracaia climate — normals and trends

Q: What is the climate of Piracaia?

Piracaia has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 18.4 °C and it receives 1,849 mm of precipitation per year.

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

The hottest day measured in Piracaia between 1940 and 2025 was 28 September 1961, reaching 34.7 °C.

Q: What is the coldest day in Piracaia?

The coldest day measured in Piracaia between 1940 and 2025 was 30 July 2021, at -0.4 °C.

Q: Does it snow in Piracaia?

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

Q: Has the climate of Piracaia warmed?

Yes: Piracaia warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Piracaia?

The wettest day measured in Piracaia between 1940 and 2025 was 19 January 1977, with 157 mm of rain in 24 hours.

Q: What was the windiest day in Piracaia?

The windiest day measured in Piracaia between 1940 and 2025 was 10 December 2025, with winds reaching 37.1 km/h.

Q: What is the warmest month in Piracaia?

The warmest month in Piracaia is February (21.1 °C on average); the coldest is July (14.9 °C).

Q: How much does it rain in Piracaia?

Piracaia receives on average 1,849 mm of precipitation per year, spread over about 180 rainy days.

Q: Is it sunny in Piracaia?

Piracaia gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.

Piracaia (Brazil) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 18.4 °C and it receives 1,849 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 (21.1 °C on average) and the coldest is July (14.9 °C). Rainfall peaks in January.

Piracaia averages 0 frost days, 8 hot days (≥ 30 °C) and 180 rainy days per year.

Piracaia has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.

The hottest day of the period reached 34.7 °C (on 28 September 1961) and the coldest -0.4 °C (on 30 July 2021).

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

PiracaiaSão Paulo

coords: -23.05°, -46.36°
period: 1940–2025 · 86 yrs

CfbTemperate oceanicWarmest monthFebruaryColdest monthJulyWettest monthJanuaryDriest monthAugust

Mean daily temperature

18.4°C

Average daily high

23.6°C

Average daily low

14.5°C

Annual rainfall

1,849mm

Sunshine / day

9.4h

Mean relative humidity

80%

Average peak wind

12.6km/h

Seasonal range

6.2°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

8 d/yr

Rainy days (≥ 1 mm)

180 d/yr

Annual snowfall

0.0 cm

Average feels-like high

24.9 °C

Average feels-like low

14.4 °C

Average peak gust

33.3 km/h

Tropical nights (≥ 20 °C)

2 d/yr

Solar radiation

17.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.9 °C

since 1940

+0.2 °C per decade · r² = 0.63 · 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

34.7 °C

28 September 1961

Coldest day

-0.4 °C

30 July 2021

Wettest day

157 mm

19 January 1977

Windiest day

37.1 km/h

10 December 2025

Strongest gust

100.1 km/h

17 December 1947

Hottest feels-like

37.9 °C

20 January 1988

Coldest feels-like

-3.3 °C

30 July 2021

Sunniest day

13.4 h

28 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	32.3 °C17 February 2025	1.9 °C25 June 2025	18.8 °C	1,418 mm	22	0
2024	33.7 °C2 October 2024	2.5 °C13 August 2024	19.8 °C	1,522 mm	31	0
2023	34.5 °C13 November 2023	5.0 °C15 July 2023	19.4 °C	1,704 mm	37	0
2022	31.7 °C10 September 2022	3.0 °C13 June 2022	18.3 °C	1,781 mm	8	0
2021	32.6 °C20 September 2021	-0.4 °C30 July 2021	18.5 °C	1,448 mm	13	1
2020	34.5 °C2 October 2020	4.2 °C28 May 2020	18.8 °C	1,515 mm	21	0
2019	33.0 °C12 September 2019	2.3 °C7 July 2019	19.6 °C	1,471 mm	32	0
2018	31.5 °C18 December 2018	4.9 °C21 May 2018	19.3 °C	1,305 mm	13	0
2017	31.6 °C6 October 2017	5.0 °C5 July 2017	19.3 °C	1,446 mm	21	0
2016	32.6 °C17 October 2016	1.4 °C13 June 2016	19.4 °C	1,716 mm	22	0
2015	33.6 °C15 October 2015	7.5 °C27 June 2015	20.0 °C	2,086 mm	33	0
2014	33.1 °C19 October 2014	6.7 °C6 August 2014	19.6 °C	1,193 mm	30	0
2013	32.7 °C11 November 2013	5.3 °C24 July 2013	18.7 °C	1,821 mm	12	0
2012	32.8 °C31 October 2012	3.9 °C14 July 2012	19.1 °C	1,711 mm	20	0
2011	31.1 °C1 October 2011	1.5 °C28 June 2011	18.7 °C	1,985 mm	12	0
2010	31.3 °C29 October 2010	5.1 °C18 August 2010	18.9 °C	1,664 mm	20	0
2009	31.7 °C6 March 2009	3.4 °C4 June 2009	19.2 °C	2,131 mm	12	0
2008	31.7 °C15 October 2008	5.9 °C17 July 2008	18.5 °C	1,963 mm	4	0
2007	32.2 °C21 October 2007	2.7 °C30 July 2007	19.2 °C	1,527 mm	16	0
2006	31.7 °C25 January 2006	4.0 °C6 September 2006	18.7 °C	1,703 mm	9	0
2005	31.7 °C14 October 2005	5.3 °C10 July 2005	19.0 °C	1,548 mm	7	0
2004	30.5 °C28 September 2004	4.2 °C24 July 2004	18.3 °C	1,749 mm	3	0
2003	31.6 °C9 January 2003	4.6 °C18 August 2003	18.9 °C	1,549 mm	16	0
2002	32.3 °C16 October 2002	3.4 °C3 September 2002	19.5 °C	1,507 mm	15	0
2001	30.1 °C7 January 2001	5.7 °C22 June 2001	18.9 °C	1,612 mm	1	0
2000	30.8 °C23 October 2000	2.2 °C18 July 2000	18.5 °C	1,933 mm	5	0
1999	31.3 °C1 October 1999	5.0 °C15 August 1999	18.3 °C	1,889 mm	10	0
1998	31.2 °C1 February 1998	5.7 °C9 June 1998	18.9 °C	1,967 mm	12	0
1997	32.2 °C11 November 1997	3.4 °C9 June 1997	18.9 °C	1,988 mm	11	0
1996	31.3 °C30 January 1996	5.0 °C3 August 1996	18.4 °C	2,270 mm	12	0
1995	31.8 °C16 January 1995	7.7 °C5 September 1995	18.9 °C	2,069 mm	18	0
1994	32.1 °C2 October 1994	0.7 °C27 June 1994	19.2 °C	1,989 mm	16	0
1993	31.3 °C30 November 1993	4.6 °C1 August 1993	18.9 °C	1,904 mm	5	0
1992	29.8 °C15 November 1992	6.0 °C25 August 1992	18.7 °C	2,021 mm	0	0
1991	30.2 °C15 October 1991	5.4 °C3 August 1991	18.6 °C	1,915 mm	1	0
1990	30.9 °C11 October 1990	2.8 °C23 June 1990	18.8 °C	1,634 mm	7	0
1989	30.0 °C31 January 1989	4.4 °C19 July 1989	18.1 °C	1,955 mm	1	0
1988	31.9 °C27 September 1988	1.9 °C6 June 1988	18.5 °C	2,073 mm	14	0
1987	30.5 °C23 February 1987	2.1 °C9 August 1987	18.7 °C	1,759 mm	4	0
1986	30.7 °C7 October 1986	4.3 °C13 July 1986	18.8 °C	2,081 mm	1	0
1985	31.6 °C17 November 1985	3.1 °C8 June 1985	18.4 °C	1,735 mm	3	0
1984	31.8 °C4 February 1984	3.3 °C27 August 1984	19.1 °C	1,478 mm	12	0
1983	30.7 °C17 February 1983	4.8 °C5 August 1983	18.8 °C	2,501 mm	3	0
1982	29.8 °C12 February 1982	6.4 °C31 July 1982	18.5 °C	2,120 mm	0	0
1981	30.1 °C20 September 1981	1.8 °C21 July 1981	18.1 °C	1,795 mm	2	0
1980	30.4 °C27 October 1980	4.4 °C27 September 1980	18.6 °C	1,732 mm	1	0
1979	29.8 °C7 December 1979	0.5 °C1 June 1979	18.0 °C	1,842 mm	0	0
1978	31.6 °C24 January 1978	2.9 °C16 August 1978	18.2 °C	1,698 mm	6	0
1977	30.8 °C9 February 1977	6.4 °C17 May 1977	19.0 °C	1,966 mm	2	0
1976	31.0 °C19 January 1976	2.9 °C16 August 1976	18.0 °C	2,487 mm	3	0
1975	30.4 °C14 February 1975	1.7 °C18 July 1975	18.2 °C	1,862 mm	2	0
1974	30.9 °C19 November 1974	5.5 °C19 August 1974	18.1 °C	1,851 mm	1	0
1973	31.4 °C22 February 1973	2.9 °C20 June 1973	18.6 °C	1,762 mm	7	0
1972	30.8 °C26 October 1972	4.3 °C9 July 1972	18.4 °C	2,106 mm	4	0
1971	31.0 °C5 February 1971	3.6 °C25 April 1971	18.0 °C	1,629 mm	9	0
1970	30.7 °C21 March 1970	3.9 °C3 July 1970	18.2 °C	1,493 mm	4	0
1969	30.9 °C30 January 1969	0.9 °C11 July 1969	18.4 °C	1,320 mm	4	0
1968	31.7 °C15 December 1968	2.7 °C18 May 1968	17.3 °C	1,237 mm	3	0
1967	29.9 °C2 December 1967	4.7 °C9 June 1967	18.4 °C	1,814 mm	0	0
1966	29.8 °C12 September 1966	4.9 °C23 September 1966	17.7 °C	1,999 mm	0	0
1965	30.0 °C5 September 1965	0.4 °C12 July 1965	17.6 °C	2,092 mm	1	0
1964	28.3 °C1 September 1964	3.7 °C29 July 1964	17.1 °C	2,091 mm	0	0
1963	33.2 °C17 October 1963	4.4 °C21 June 1963	18.6 °C	1,700 mm	20	0
1962	28.7 °C8 September 1962	2.3 °C7 July 1962	16.9 °C	2,214 mm	0	0
1961	34.7 °C28 September 1961	8.4 °C16 June 1961	18.8 °C	1,864 mm	22	0
1960	32.5 °C25 September 1960	4.8 °C15 July 1960	17.4 °C	2,031 mm	3	0
1959	29.9 °C30 January 1959	5.2 °C8 June 1959	18.2 °C	1,734 mm	0	0
1958	30.7 °C16 November 1958	4.1 °C23 June 1958	17.9 °C	1,965 mm	2	0
1957	30.2 °C19 October 1957	2.3 °C22 July 1957	17.6 °C	2,146 mm	1	0
1956	29.9 °C9 January 1956	6.0 °C22 July 1956	17.1 °C	1,593 mm	0	0
1955	32.2 °C1 October 1955	4.4 °C26 May 1955	17.6 °C	1,710 mm	2	0
1954	31.2 °C19 September 1954	3.6 °C21 June 1954	18.0 °C	2,168 mm	5	0
1953	29.3 °C21 August 1953	7.1 °C28 July 1953	18.0 °C	1,939 mm	0	0
1952	30.4 °C4 September 1952	3.6 °C16 July 1952	17.7 °C	1,644 mm	3	0
1951	30.3 °C22 November 1951	6.0 °C2 June 1951	17.6 °C	1,842 mm	2	0
1950	29.8 °C17 September 1950	5.8 °C15 July 1950	17.5 °C	2,177 mm	0	0
1949	28.4 °C13 October 1949	7.3 °C28 August 1949	17.4 °C	2,261 mm	0	0
1948	32.0 °C27 September 1948	6.0 °C16 June 1948	17.8 °C	1,772 mm	2	0
1947	30.3 °C8 January 1947	4.3 °C4 August 1947	17.2 °C	2,077 mm	1	0
1946	28.8 °C6 January 1946	4.0 °C4 June 1946	18.1 °C	2,336 mm	0	0
1945	28.4 °C28 September 1945	7.0 °C12 July 1945	17.8 °C	2,693 mm	0	0
1944	31.7 °C7 September 1944	6.9 °C14 July 1944	17.9 °C	1,977 mm	3	0
1943	28.0 °C1 January 1943	5.7 °C26 July 1943	16.9 °C	1,626 mm	0	0
1942	32.6 °C6 October 1942	3.2 °C25 June 1942	17.2 °C	1,489 mm	8	0
1941	29.0 °C12 January 1941	6.9 °C5 September 1941	18.0 °C	2,673 mm	0	0
1940	29.2 °C23 August 1940	6.6 °C19 August 1940	18.1 °C	2,194 mm	0	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

24.5 °C

+0.9 °C

Hot days (≥ 30 °C)

22 d/yr

+14

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1418 mm

-431 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	26.7 °C	+1.0 °C	277 mm	-27 mm
Feb	28.6 °C	+2.7 °C	145 mm	-120 mm
Mar	26.9 °C	+1.6 °C	201 mm	-14 mm
Apr	23.6 °C	-0.1 °C	170 mm	+69 mm
May	22.8 °C	+1.2 °C	13 mm	-61 mm
Jun	21.2 °C	+0.4 °C	46 mm	-4 mm
Jul	20.2 °C	-0.6 °C	13 mm	-35 mm
Aug	22.8 °C	+0.3 °C	27 mm	-21 mm
Sep	24.8 °C	+1.0 °C	21 mm	-77 mm
Oct	23.9 °C	-0.2 °C	165 mm	-10 mm
Nov	24.8 °C	+0.5 °C	134 mm	-68 mm
Dec	27.3 °C	+2.4 °C	208 mm	-64 mm

The year's extremes

Hottest day

32.3 °C

17 Feb 2025

Coldest day

1.9 °C

25 Jun 2025

Wettest day

31.6 mm

9 Dec 2025

Windiest day

37.1 km/h

10 Dec 2025

Strongest gust

89.6 km/h

22 Sep 2025

Hottest feels-like

37.7 °C

28 Dec 2025

Coldest feels-like

-1.1 °C

25 Jun 2025

Sunniest day

13.4 h

28 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 Piracaia?

Piracaia has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 18.4 °C and it receives 1,849 mm of precipitation per year.

What is the hottest day ever recorded in Piracaia?

The hottest day measured in Piracaia between 1940 and 2025 was 28 September 1961, reaching 34.7 °C.

What is the coldest day in Piracaia?

The coldest day measured in Piracaia between 1940 and 2025 was 30 July 2021, at -0.4 °C.

Does it snow in Piracaia?

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

Has the climate of Piracaia warmed?

Yes: Piracaia warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Piracaia?

The wettest day measured in Piracaia between 1940 and 2025 was 19 January 1977, with 157 mm of rain in 24 hours.

What was the windiest day in Piracaia?

The windiest day measured in Piracaia between 1940 and 2025 was 10 December 2025, with winds reaching 37.1 km/h.

What is the warmest month in Piracaia?

The warmest month in Piracaia is February (21.1 °C on average); the coldest is July (14.9 °C).

How much does it rain in Piracaia?

Piracaia receives on average 1,849 mm of precipitation per year, spread over about 180 rainy days.

Is it sunny in Piracaia?

Piracaia gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.

Are there tropical nights in Piracaia?

Yes: Piracaia has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Piracaia?

In Piracaia, between 1940 and 2025, the highest apparent temperature reached 37.9 °C on 20 January 1988, and the lowest was -3.3 °C on 30 July 2021.

Compare Piracaia with another city

Pick a second city: its normals will be set against these, indicator by indicator.

Nearby cities

The climate around Piracaia

Other cities — Brazil

All cities in Brazil →