São Bernardo climate — normals and trends

Q: What is the climate of São Bernardo?

São Bernardo has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.3 °C and it receives 1,350 mm of precipitation per year.

Q: What is the hottest day ever recorded in São Bernardo?

The hottest day measured in São Bernardo between 1940 and 2025 was 20 November 2005, reaching 39.8 °C.

Q: What is the coldest day in São Bernardo?

The coldest day measured in São Bernardo between 1940 and 2025 was 4 July 1968, at 19.4 °C.

Q: Does it snow in São Bernardo?

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

Q: Has the climate of São Bernardo warmed?

Yes: São Bernardo warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in São Bernardo?

The wettest day measured in São Bernardo between 1940 and 2025 was 28 March 1986, with 264 mm of rain in 24 hours.

Q: What was the windiest day in São Bernardo?

The windiest day measured in São Bernardo between 1940 and 2025 was 25 October 2012, with winds reaching 28.5 km/h.

Q: What is the warmest month in São Bernardo?

The warmest month in São Bernardo is October (28.7 °C on average); the coldest is March (25.9 °C).

Q: How much does it rain in São Bernardo?

São Bernardo receives on average 1,350 mm of precipitation per year, spread over about 146 rainy days.

Q: Is it sunny in São Bernardo?

São Bernardo gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

São Bernardo (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.3 °C and it receives 1,350 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 October (28.7 °C on average) and the coldest is March (25.9 °C). Rainfall peaks in March.

São Bernardo averages 0 frost days, 304 hot days (≥ 30 °C) and 146 rainy days per year.

São Bernardo has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.

The hottest day of the period reached 39.8 °C (on 20 November 2005) and the coldest 19.4 °C (on 4 July 1968).

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

São BernardoMaranhão

coords: -3.36°, -42.42°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthOctoberColdest monthMarchWettest monthMarchDriest monthSeptember

Mean daily temperature

27.3°C

Average daily high

32.8°C

Average daily low

23.4°C

Annual rainfall

1,350mm

Sunshine / day

10.7h

Mean relative humidity

74%

Average peak wind

15.8km/h

Seasonal range

2.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

304 d/yr

Rainy days (≥ 1 mm)

146 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.3 °C

Average feels-like low

26.8 °C

Average peak gust

35.7 km/h

Tropical nights (≥ 20 °C)

364 d/yr

Solar radiation

20.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.0 °C

since 1940

+0.1 °C per decade · r² = 0.31 · 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

39.8 °C

20 November 2005

Coldest day

19.4 °C

4 July 1968

Wettest day

264 mm

28 March 1986

Windiest day

28.5 km/h

25 October 2012

Strongest gust

61.2 km/h

10 November 1996

Hottest feels-like

42.6 °C

4 October 2009

Coldest feels-like

19.3 °C

4 July 1974

Sunniest day

12.0 h

2 January 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.7 °C12 October 2025	20.5 °C4 July 2025	27.9 °C	1,131 mm	342
2024	37.2 °C28 October 2024	19.4 °C3 August 2024	27.7 °C	1,144 mm	339
2023	37.7 °C25 December 2023	19.7 °C21 July 2023	27.4 °C	1,240 mm	330
2022	37.6 °C29 October 2022	20.3 °C19 July 2022	27.2 °C	1,614 mm	338
2021	37.5 °C25 October 2021	20.2 °C25 July 2021	27.6 °C	1,146 mm	336
2020	37.8 °C14 November 2020	19.6 °C8 August 2020	27.7 °C	1,592 mm	335
2019	37.8 °C28 October 2019	21.7 °C22 June 2019	27.7 °C	1,492 mm	322
2018	38.5 °C21 November 2018	21.5 °C25 June 2018	27.5 °C	1,563 mm	314
2017	38.2 °C25 October 2017	21.0 °C16 July 2017	28.0 °C	1,613 mm	331
2016	39.3 °C16 October 2016	20.9 °C1 July 2016	28.3 °C	971 mm	345
2015	38.0 °C13 October 2015	21.1 °C17 August 2015	28.1 °C	916 mm	345
2014	38.6 °C21 December 2014	21.4 °C12 June 2014	28.0 °C	988 mm	340
2013	38.6 °C1 December 2013	22.4 °C20 May 2013	28.6 °C	901 mm	360
2012	39.8 °C14 December 2012	20.1 °C30 July 2012	28.6 °C	740 mm	354
2011	39.0 °C5 December 2011	21.7 °C28 July 2011	27.8 °C	1,439 mm	322
2010	39.5 °C9 November 2010	20.7 °C27 June 2010	28.5 °C	1,061 mm	358
2009	38.7 °C4 October 2009	21.1 °C25 June 2009	27.5 °C	2,310 mm	299
2008	38.6 °C26 October 2008	21.3 °C23 June 2008	27.6 °C	1,447 mm	310
2007	38.9 °C21 January 2007	21.4 °C22 June 2007	28.1 °C	1,294 mm	335
2006	38.8 °C8 October 2006	20.4 °C15 July 2006	27.8 °C	1,212 mm	317
2005	39.8 °C20 November 2005	21.3 °C22 July 2005	28.1 °C	976 mm	335
2004	38.1 °C14 November 2004	20.7 °C31 July 2004	27.6 °C	1,556 mm	318
2003	37.6 °C4 January 2003	21.0 °C18 July 2003	27.6 °C	1,198 mm	317
2002	37.7 °C9 October 2002	21.3 °C17 June 2002	27.5 °C	1,272 mm	318
2001	37.6 °C19 October 2001	20.8 °C16 March 2001	27.1 °C	1,446 mm	301
2000	37.1 °C18 November 2000	20.8 °C4 June 2000	27.0 °C	1,456 mm	300
1999	38.1 °C10 November 1999	21.2 °C3 May 1999	27.2 °C	1,849 mm	296
1998	38.3 °C30 September 1998	22.1 °C25 July 1998	28.1 °C	849 mm	349
1997	38.6 °C6 October 1997	20.8 °C11 May 1997	27.5 °C	1,006 mm	331
1996	38.0 °C30 December 1996	20.6 °C4 June 1996	27.2 °C	1,624 mm	308
1995	38.3 °C18 December 1995	20.9 °C12 July 1995	27.2 °C	1,498 mm	298
1994	37.6 °C6 November 1994	21.0 °C12 July 1994	27.1 °C	1,466 mm	286
1993	39.2 °C25 November 1993	20.6 °C18 July 1993	28.1 °C	708 mm	339
1992	37.6 °C1 January 1992	20.7 °C20 July 1992	27.8 °C	702 mm	340
1991	37.2 °C24 September 1991	20.3 °C15 August 1991	27.2 °C	1,242 mm	311
1990	37.8 °C30 November 1990	21.6 °C22 February 1990	27.6 °C	898 mm	340
1989	38.5 °C29 October 1989	21.0 °C23 May 1989	27.0 °C	1,675 mm	286
1988	38.2 °C23 November 1988	21.0 °C3 August 1988	27.3 °C	1,689 mm	306
1987	38.5 °C28 December 1987	21.9 °C9 June 1987	28.0 °C	886 mm	337
1986	37.3 °C17 November 1986	20.5 °C11 June 1986	26.9 °C	1,914 mm	281
1985	37.6 °C25 September 1985	20.7 °C25 June 1985	26.6 °C	2,202 mm	246
1984	38.4 °C1 November 1984	19.7 °C28 July 1984	27.2 °C	1,754 mm	290
1983	38.7 °C19 December 1983	21.9 °C26 July 1983	28.1 °C	723 mm	350
1982	37.1 °C18 November 1982	21.9 °C19 April 1982	27.4 °C	1,066 mm	324
1981	37.9 °C27 November 1981	20.3 °C1 August 1981	27.6 °C	913 mm	332
1980	38.3 °C19 October 1980	21.1 °C1 March 1980	27.4 °C	1,497 mm	326
1979	39.0 °C24 November 1979	20.8 °C26 February 1979	27.5 °C	1,339 mm	319
1978	37.0 °C2 October 1978	20.0 °C2 August 1978	27.0 °C	1,683 mm	313
1977	37.9 °C22 November 1977	20.2 °C22 July 1977	26.9 °C	1,639 mm	286
1976	36.7 °C18 October 1976	19.9 °C20 July 1976	26.9 °C	1,497 mm	306
1975	36.3 °C29 October 1975	19.7 °C27 July 1975	26.5 °C	1,842 mm	265
1974	36.7 °C26 November 1974	19.6 °C4 July 1974	26.2 °C	2,363 mm	231
1973	38.0 °C12 November 1973	20.6 °C20 January 1973	26.8 °C	2,129 mm	288
1972	38.0 °C16 November 1972	21.3 °C16 June 1972	27.0 °C	1,271 mm	314
1971	36.9 °C26 September 1971	20.3 °C18 July 1971	26.4 °C	2,051 mm	254
1970	37.1 °C15 October 1970	20.1 °C14 August 1970	27.3 °C	1,208 mm	329
1969	36.9 °C13 December 1969	21.1 °C28 July 1969	27.1 °C	1,178 mm	321
1968	37.0 °C1 October 1968	19.4 °C4 July 1968	26.7 °C	1,590 mm	271
1967	37.5 °C4 December 1967	20.0 °C22 July 1967	26.5 °C	2,144 mm	260
1966	39.2 °C25 October 1966	21.4 °C8 June 1966	27.1 °C	1,303 mm	271
1965	38.3 °C7 November 1965	20.9 °C18 July 1965	26.8 °C	988 mm	262
1964	38.3 °C8 November 1964	21.4 °C25 October 1964	26.5 °C	1,674 mm	213
1963	38.2 °C26 September 1963	21.1 °C15 January 1963	26.9 °C	1,604 mm	256
1962	38.2 °C18 October 1962	21.2 °C13 February 1962	26.9 °C	1,333 mm	269
1961	38.9 °C2 November 1961	20.8 °C13 August 1961	26.9 °C	1,674 mm	249
1960	38.5 °C31 October 1960	20.9 °C10 July 1960	27.0 °C	1,571 mm	257
1959	38.4 °C1 December 1959	21.3 °C24 February 1959	26.9 °C	1,615 mm	250
1958	39.2 °C20 November 1958	20.9 °C4 March 1958	28.0 °C	632 mm	351
1957	39.0 °C31 October 1957	21.1 °C29 January 1957	27.0 °C	1,464 mm	267
1956	38.6 °C26 October 1956	21.0 °C17 March 1956	27.2 °C	1,053 mm	301
1955	38.5 °C18 November 1955	21.2 °C9 February 1955	27.0 °C	1,355 mm	271
1954	38.5 °C4 November 1954	20.7 °C1 September 1954	27.1 °C	1,104 mm	290
1953	38.7 °C22 October 1953	21.2 °C17 March 1953	27.2 °C	1,247 mm	303
1952	38.3 °C28 September 1952	21.6 °C23 June 1952	27.0 °C	1,456 mm	271
1951	38.7 °C7 October 1951	21.5 °C25 April 1951	27.6 °C	738 mm	317
1950	38.6 °C10 December 1950	20.7 °C16 July 1950	27.0 °C	1,353 mm	257
1949	39.0 °C8 November 1949	21.2 °C13 February 1949	26.9 °C	1,564 mm	250
1948	38.6 °C4 November 1948	21.2 °C22 January 1948	27.2 °C	1,226 mm	292
1947	38.6 °C7 October 1947	21.1 °C17 August 1947	26.9 °C	1,576 mm	272
1946	39.3 °C13 December 1946	21.6 °C15 April 1946	27.5 °C	875 mm	319
1945	38.1 °C10 November 1945	20.5 °C18 January 1945	27.0 °C	1,069 mm	289
1944	38.6 °C3 November 1944	21.1 °C28 May 1944	27.1 °C	1,824 mm	254
1943	38.8 °C24 October 1943	20.6 °C8 February 1943	26.9 °C	1,108 mm	269
1942	39.5 °C21 November 1942	20.9 °C9 July 1942	27.7 °C	748 mm	345
1941	38.9 °C18 October 1941	21.2 °C23 July 1941	27.7 °C	637 mm	336
1940	38.0 °C3 October 1940	21.0 °C24 March 1940	26.8 °C	1,498 mm	240

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

33.3 °C

+0.5 °C

Hot days (≥ 30 °C)

342 d/yr

+38

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1131 mm

-219 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	31.8 °C	0.0 °C	225 mm	+56 mm
Feb	31.0 °C	+0.3 °C	199 mm	-26 mm
Mar	30.9 °C	+0.7 °C	352 mm	+36 mm
Apr	31.3 °C	+1.1 °C	208 mm	-84 mm
May	31.3 °C	+0.6 °C	88 mm	-101 mm
Jun	31.6 °C	+0.3 °C	16 mm	-37 mm
Jul	33.3 °C	+0.7 °C	9 mm	-14 mm
Aug	34.7 °C	+0.3 °C	8 mm	+3 mm
Sep	36.5 °C	+0.9 °C	1 mm	-3 mm
Oct	37.2 °C	+1.2 °C	2 mm	-5 mm
Nov	36.0 °C	+0.5 °C	1 mm	-11 mm
Dec	34.3 °C	+0.1 °C	23 mm	-34 mm

The year's extremes

Hottest day

38.7 °C

12 Oct 2025

Coldest day

20.5 °C

4 Jul 2025

Wettest day

54.0 mm

15 Jan 2025

Windiest day

23.6 km/h

8 Dec 2025

Strongest gust

52.6 km/h

29 Nov 2025

Hottest feels-like

40.7 °C

4 Nov 2025

Coldest feels-like

23.4 °C

13 Jul 2025

Sunniest day

12.0 h

1 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 São Bernardo?

São Bernardo has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.3 °C and it receives 1,350 mm of precipitation per year.

What is the hottest day ever recorded in São Bernardo?

The hottest day measured in São Bernardo between 1940 and 2025 was 20 November 2005, reaching 39.8 °C.

What is the coldest day in São Bernardo?

The coldest day measured in São Bernardo between 1940 and 2025 was 4 July 1968, at 19.4 °C.

Does it snow in São Bernardo?

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

Has the climate of São Bernardo warmed?

Yes: São Bernardo warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in São Bernardo?

The wettest day measured in São Bernardo between 1940 and 2025 was 28 March 1986, with 264 mm of rain in 24 hours.

What was the windiest day in São Bernardo?

The windiest day measured in São Bernardo between 1940 and 2025 was 25 October 2012, with winds reaching 28.5 km/h.

What is the warmest month in São Bernardo?

The warmest month in São Bernardo is October (28.7 °C on average); the coldest is March (25.9 °C).

How much does it rain in São Bernardo?

São Bernardo receives on average 1,350 mm of precipitation per year, spread over about 146 rainy days.

Is it sunny in São Bernardo?

São Bernardo gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

Are there tropical nights in São Bernardo?

Yes: São Bernardo has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in São Bernardo?

In São Bernardo, between 1940 and 2025, the highest apparent temperature reached 42.6 °C on 4 October 2009, and the lowest was 19.3 °C on 4 July 1974.

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