Santo André climate — normals and trends

Q: What is the climate of Santo André?

Santo André has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.6 °C and it receives 2,160 mm of precipitation per year.

Q: What is the hottest day ever recorded in Santo André?

The hottest day measured in Santo André between 1940 and 2025 was 28 September 1961, reaching 37.2 °C.

Q: What is the coldest day in Santo André?

The coldest day measured in Santo André between 1940 and 2025 was 30 July 2021, at 3.5 °C.

Q: Does it snow in Santo André?

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

Q: Has the climate of Santo André warmed?

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

Q: What is the wettest day in Santo André?

The wettest day measured in Santo André between 1940 and 2025 was 29 March 2000, with 327 mm of rain in 24 hours.

Q: What was the windiest day in Santo André?

The windiest day measured in Santo André between 1940 and 2025 was 10 December 2025, with winds reaching 45.5 km/h.

Q: What is the warmest month in Santo André?

The warmest month in Santo André is February (22.7 °C on average); the coldest is July (16.3 °C).

Q: How much does it rain in Santo André?

Santo André receives on average 2,160 mm of precipitation per year, spread over about 214 rainy days.

Q: Is it sunny in Santo André?

Santo André gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.

Santo André (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 19.6 °C and it receives 2,160 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 (22.7 °C on average) and the coldest is July (16.3 °C). Rainfall peaks in January.

Santo André averages 0 frost days, 27 hot days (≥ 30 °C) and 214 rainy days per year.

Santo André has warmed by +1.7 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.

The hottest day of the period reached 37.2 °C (on 28 September 1961) and the coldest 3.5 °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

Santo AndréSão Paulo

coords: -23.66°, -46.54°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthFebruaryColdest monthJulyWettest monthJanuaryDriest monthAugust

Mean daily temperature

19.6°C

Average daily high

24.2°C

Average daily low

16.3°C

Annual rainfall

2,160mm

Sunshine / day

9.0h

Mean relative humidity

84%

Average peak wind

14.4km/h

Seasonal range

6.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

27 d/yr

Rainy days (≥ 1 mm)

214 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.0 °C

Average feels-like low

17.1 °C

Average peak gust

34.7 km/h

Tropical nights (≥ 20 °C)

54 d/yr

Solar radiation

16.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.53 · 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

37.2 °C

28 September 1961

Coldest day

3.5 °C

30 July 2021

Wettest day

327 mm

29 March 2000

Windiest day

45.5 km/h

10 December 2025

Strongest gust

112.7 km/h

17 December 1947

Hottest feels-like

40.5 °C

18 January 1988

Coldest feels-like

-2.3 °C

21 July 1981

Sunniest day

13.5 h

18 December 1941

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	34.7 °C6 October 2025	6.1 °C25 June 2025	19.8 °C	1,797 mm	45
2024	35.3 °C2 October 2024	4.4 °C27 August 2024	20.7 °C	2,183 mm	68
2023	36.5 °C12 November 2023	9.1 °C17 June 2023	20.6 °C	2,075 mm	52
2022	33.7 °C27 October 2022	7.3 °C18 May 2022	19.4 °C	2,317 mm	34
2021	34.0 °C29 November 2021	3.5 °C30 July 2021	19.4 °C	1,836 mm	33
2020	37.1 °C2 October 2020	7.9 °C27 May 2020	19.8 °C	1,893 mm	36
2019	35.5 °C12 September 2019	7.0 °C7 July 2019	20.7 °C	1,898 mm	56
2018	33.1 °C14 December 2018	8.9 °C11 July 2018	20.3 °C	1,847 mm	37
2017	34.0 °C11 October 2017	8.1 °C18 July 2017	20.4 °C	1,691 mm	42
2016	34.0 °C31 January 2016	3.8 °C13 June 2016	20.3 °C	1,985 mm	58
2015	36.4 °C15 October 2015	11.0 °C27 June 2015	21.1 °C	2,448 mm	58
2014	35.4 °C19 October 2014	9.5 °C21 July 2014	20.6 °C	1,617 mm	63
2013	34.6 °C11 November 2013	6.1 °C24 July 2013	19.9 °C	1,999 mm	47
2012	34.5 °C19 September 2012	7.7 °C14 July 2012	20.3 °C	2,058 mm	46
2011	33.9 °C28 January 2011	4.9 °C28 June 2011	19.6 °C	2,198 mm	39
2010	33.8 °C15 February 2010	8.2 °C13 June 2010	20.0 °C	2,228 mm	60
2009	33.6 °C2 March 2009	7.6 °C4 June 2009	20.2 °C	2,397 mm	34
2008	33.4 °C26 October 2008	8.5 °C17 June 2008	19.7 °C	2,237 mm	26
2007	34.3 °C23 September 2007	5.6 °C30 July 2007	20.2 °C	1,602 mm	36
2006	34.6 °C15 September 2006	6.1 °C6 September 2006	19.9 °C	1,914 mm	26
2005	33.8 °C14 October 2005	9.4 °C10 July 2005	20.1 °C	1,982 mm	25
2004	33.0 °C22 September 2004	6.9 °C9 August 2004	19.4 °C	2,083 mm	24
2003	33.9 °C16 December 2003	7.2 °C18 August 2003	20.1 °C	1,872 mm	41
2002	33.8 °C7 October 2002	6.2 °C2 September 2002	20.7 °C	1,836 mm	48
2001	33.1 °C8 January 2001	5.5 °C29 July 2001	20.2 °C	1,943 mm	34
2000	32.5 °C11 January 2000	4.5 °C17 July 2000	19.7 °C	2,298 mm	26
1999	34.1 °C7 September 1999	6.6 °C15 August 1999	19.4 °C	2,157 mm	27
1998	33.8 °C4 February 1998	9.3 °C10 July 1998	20.1 °C	2,125 mm	38
1997	34.1 °C11 November 1997	7.7 °C8 June 1997	20.2 °C	2,055 mm	39
1996	33.6 °C27 January 1996	6.4 °C2 August 1996	19.6 °C	2,369 mm	32
1995	33.7 °C23 February 1995	9.6 °C20 May 1995	20.1 °C	2,433 mm	47
1994	33.3 °C17 February 1994	4.5 °C26 June 1994	20.4 °C	2,244 mm	43
1993	33.3 °C16 November 1993	6.0 °C1 August 1993	20.2 °C	2,041 mm	39
1992	32.3 °C22 February 1992	7.3 °C26 August 1992	19.8 °C	2,011 mm	21
1991	33.6 °C16 October 1991	5.8 °C2 August 1991	19.8 °C	2,197 mm	17
1990	33.4 °C25 January 1990	4.6 °C28 July 1990	20.0 °C	2,128 mm	44
1989	32.7 °C20 February 1989	7.3 °C10 July 1989	19.3 °C	2,147 mm	23
1988	34.2 °C19 January 1988	4.3 °C6 June 1988	19.4 °C	2,348 mm	34
1987	33.2 °C7 January 1987	5.6 °C9 August 1987	19.9 °C	2,044 mm	38
1986	32.4 °C7 October 1986	8.3 °C9 July 1986	20.2 °C	2,338 mm	38
1985	32.3 °C3 April 1985	5.8 °C8 June 1985	19.6 °C	1,905 mm	19
1984	34.5 °C5 February 1984	4.7 °C27 August 1984	20.1 °C	1,832 mm	30
1983	33.0 °C17 February 1983	5.6 °C6 August 1983	19.9 °C	2,844 mm	23
1982	32.4 °C12 February 1982	8.4 °C31 July 1982	19.7 °C	2,287 mm	11
1981	33.1 °C2 February 1981	4.1 °C21 July 1981	19.3 °C	2,293 mm	20
1980	32.4 °C20 October 1980	6.0 °C23 September 1980	19.9 °C	2,116 mm	29
1979	32.7 °C7 February 1979	3.8 °C1 June 1979	19.1 °C	2,183 mm	22
1978	33.6 °C24 January 1978	6.1 °C16 August 1978	19.4 °C	1,951 mm	31
1977	33.5 °C9 February 1977	8.1 °C17 May 1977	20.3 °C	2,156 mm	26
1976	33.6 °C19 January 1976	5.8 °C16 August 1976	19.3 °C	2,823 mm	22
1975	32.7 °C10 September 1975	3.7 °C18 July 1975	19.4 °C	1,997 mm	29
1974	33.8 °C19 November 1974	5.8 °C17 August 1974	19.3 °C	2,198 mm	16
1973	34.0 °C10 February 1973	7.7 °C20 June 1973	19.8 °C	2,200 mm	31
1972	34.0 °C26 October 1972	6.5 °C9 July 1972	19.8 °C	2,149 mm	19
1971	33.7 °C28 January 1971	7.7 °C14 June 1971	19.2 °C	1,904 mm	26
1970	32.2 °C28 December 1970	7.7 °C2 September 1970	19.4 °C	1,854 mm	18
1969	34.2 °C5 January 1969	5.2 °C11 July 1969	19.5 °C	1,596 mm	32
1968	34.3 °C15 December 1968	5.9 °C18 May 1968	18.5 °C	1,563 mm	21
1967	32.0 °C2 December 1967	7.4 °C9 June 1967	19.6 °C	2,059 mm	20
1966	31.8 °C1 September 1966	5.5 °C7 August 1966	19.0 °C	2,807 mm	20
1965	33.5 °C10 September 1965	4.7 °C12 July 1965	18.9 °C	2,548 mm	9
1964	30.6 °C1 September 1964	6.6 °C29 July 1964	18.2 °C	2,252 mm	1
1963	35.0 °C14 October 1963	7.7 °C21 June 1963	19.5 °C	1,977 mm	28
1962	31.5 °C8 September 1962	6.9 °C7 July 1962	17.8 °C	2,680 mm	5
1961	37.2 °C28 September 1961	9.2 °C15 June 1961	19.8 °C	1,975 mm	25
1960	34.1 °C25 September 1960	8.0 °C10 July 1960	18.5 °C	2,380 mm	7
1959	32.7 °C7 September 1959	8.4 °C8 June 1959	19.4 °C	2,008 mm	16
1958	33.1 °C15 November 1958	7.0 °C23 June 1958	19.3 °C	2,381 mm	21
1957	32.0 °C18 October 1957	6.1 °C21 July 1957	18.8 °C	2,417 mm	6
1956	32.4 °C8 January 1956	7.3 °C26 August 1956	18.2 °C	1,901 mm	22
1955	32.6 °C1 September 1955	6.8 °C31 July 1955	18.6 °C	1,883 mm	11
1954	32.5 °C18 September 1954	8.6 °C21 June 1954	19.2 °C	2,334 mm	15
1953	33.3 °C21 August 1953	9.8 °C12 July 1953	19.3 °C	2,187 mm	12
1952	32.6 °C6 October 1952	7.1 °C16 July 1952	18.8 °C	1,942 mm	8
1951	33.1 °C26 September 1951	8.5 °C4 June 1951	18.8 °C	1,992 mm	18
1950	32.1 °C17 September 1950	8.4 °C3 August 1950	18.8 °C	2,472 mm	13
1949	31.1 °C13 October 1949	9.5 °C16 August 1949	18.5 °C	2,572 mm	3
1948	34.4 °C26 September 1948	9.0 °C9 August 1948	19.0 °C	1,966 mm	14
1947	32.5 °C8 January 1947	7.1 °C2 September 1947	18.4 °C	2,667 mm	9
1946	30.5 °C6 January 1946	8.9 °C17 June 1946	19.5 °C	2,824 mm	9
1945	31.6 °C28 September 1945	9.1 °C12 July 1945	19.2 °C	3,132 mm	3
1944	33.7 °C7 September 1944	9.5 °C12 July 1944	19.2 °C	2,226 mm	11
1943	30.6 °C19 January 1943	7.0 °C8 August 1943	18.2 °C	1,890 mm	4
1942	35.8 °C6 October 1942	6.1 °C19 June 1942	18.5 °C	1,837 mm	10
1941	31.0 °C11 January 1941	7.0 °C4 September 1941	19.3 °C	3,123 mm	8
1940	32.1 °C12 September 1940	9.3 °C28 August 1940	19.6 °C	2,580 mm	3

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

+0.3 °C

Hot days (≥ 30 °C)

45 d/yr

+18

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1797 mm

-363 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.4 °C	+0.5 °C	344 mm	+20 mm
Feb	29.7 °C	+2.6 °C	233 mm	-68 mm
Mar	26.8 °C	+0.7 °C	182 mm	-95 mm
Apr	24.2 °C	-0.2 °C	263 mm	+126 mm
May	23.5 °C	+1.1 °C	62 mm	-40 mm
Jun	21.7 °C	0.0 °C	108 mm	+31 mm
Jul	19.8 °C	-1.6 °C	23 mm	-57 mm
Aug	21.8 °C	-0.8 °C	41 mm	-35 mm
Sep	23.4 °C	+0.1 °C	50 mm	-78 mm
Oct	23.2 °C	-0.7 °C	157 mm	-23 mm
Nov	24.5 °C	0.0 °C	130 mm	-76 mm
Dec	28.3 °C	+2.6 °C	206 mm	-69 mm

The year's extremes

Hottest day

34.7 °C

6 Oct 2025

Coldest day

6.1 °C

25 Jun 2025

Wettest day

62.0 mm

29 Jan 2025

Windiest day

45.5 km/h

10 Dec 2025

Strongest gust

98.6 km/h

22 Sep 2025

Hottest feels-like

40.4 °C

26 Dec 2025

Coldest feels-like

4.1 °C

25 Jun 2025

Sunniest day

13.5 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 Santo André?

Santo André has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.6 °C and it receives 2,160 mm of precipitation per year.

What is the hottest day ever recorded in Santo André?

The hottest day measured in Santo André between 1940 and 2025 was 28 September 1961, reaching 37.2 °C.

What is the coldest day in Santo André?

The coldest day measured in Santo André between 1940 and 2025 was 30 July 2021, at 3.5 °C.

Does it snow in Santo André?

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

Has the climate of Santo André warmed?

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

What is the wettest day in Santo André?

The wettest day measured in Santo André between 1940 and 2025 was 29 March 2000, with 327 mm of rain in 24 hours.

What was the windiest day in Santo André?

The windiest day measured in Santo André between 1940 and 2025 was 10 December 2025, with winds reaching 45.5 km/h.

What is the warmest month in Santo André?

The warmest month in Santo André is February (22.7 °C on average); the coldest is July (16.3 °C).

How much does it rain in Santo André?

Santo André receives on average 2,160 mm of precipitation per year, spread over about 214 rainy days.

Is it sunny in Santo André?

Santo André gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.

Are there tropical nights in Santo André?

Yes: Santo André has on average 54 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Santo André?

In Santo André, between 1940 and 2025, the highest apparent temperature reached 40.5 °C on 18 January 1988, and the lowest was -2.3 °C on 21 July 1981.

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