São João da Boa Vista climate — normals and trends

Q: What is the climate of São João da Boa Vista?

São João da Boa Vista has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.3 °C and it receives 1,596 mm of precipitation per year.

Q: What is the hottest day ever recorded in São João da Boa Vista?

The hottest day measured in São João da Boa Vista between 1940 and 2025 was 16 October 2015, reaching 36.2 °C.

Q: What is the coldest day in São João da Boa Vista?

The coldest day measured in São João da Boa Vista between 1940 and 2025 was 1 June 1979, at -0.3 °C.

Q: Does it snow in São João da Boa Vista?

Almost never: São João da Boa Vista sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of São João da Boa Vista warmed?

Yes: São João da Boa Vista warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in São João da Boa Vista?

The wettest day measured in São João da Boa Vista between 1940 and 2025 was 28 March 1991, with 102 mm of rain in 24 hours.

Q: What was the windiest day in São João da Boa Vista?

The windiest day measured in São João da Boa Vista between 1940 and 2025 was 11 October 1972, with winds reaching 30.5 km/h.

Q: What is the warmest month in São João da Boa Vista?

The warmest month in São João da Boa Vista is February (22.5 °C on average); the coldest is July (16.7 °C).

Q: How much does it rain in São João da Boa Vista?

São João da Boa Vista receives on average 1,596 mm of precipitation per year, spread over about 167 rainy days.

Q: Is it sunny in São João da Boa Vista?

São João da Boa Vista gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.

São João da Boa Vista (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 20.3 °C and it receives 1,596 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 (22.5 °C on average) and the coldest is July (16.7 °C). Rainfall peaks in January.

São João da Boa Vista averages 0 frost days, 30 hot days (≥ 30 °C) and 167 rainy days per year.

São João da Boa Vista has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.2 °C (on 16 October 2015) and the coldest -0.3 °C (on 1 June 1979).

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 João da Boa VistaSão Paulo

coords: -21.97°, -46.80°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthFebruaryColdest monthJulyWettest monthJanuaryDriest monthJuly

Mean daily temperature

20.3°C

Average daily high

25.6°C

Average daily low

15.8°C

Annual rainfall

1,596mm

Sunshine / day

10.0h

Mean relative humidity

74%

Average peak wind

12.0km/h

Seasonal range

5.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

30 d/yr

Rainy days (≥ 1 mm)

167 d/yr

Annual snowfall

0.0 cm

Average feels-like high

27.4 °C

Average feels-like low

16.1 °C

Average peak gust

30.2 km/h

Tropical nights (≥ 20 °C)

19 d/yr

Solar radiation

18.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.1 °C

since 1940

+0.2 °C per decade · r² = 0.70 · 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

36.2 °C

16 October 2015

Coldest day

-0.3 °C

1 June 1979

Wettest day

102 mm

28 March 1991

Windiest day

30.5 km/h

11 October 1972

Strongest gust

83.9 km/h

28 November 1950

Hottest feels-like

39.5 °C

18 January 2015

Coldest feels-like

-3.7 °C

20 July 2021

Sunniest day

13.3 h

24 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	33.7 °C6 October 2025	2.2 °C25 June 2025	20.8 °C	1,038 mm	75	0
2024	35.5 °C2 October 2024	2.8 °C11 August 2024	21.8 °C	1,333 mm	102	0
2023	36.1 °C14 November 2023	4.0 °C18 June 2023	21.1 °C	1,248 mm	74	0
2022	33.2 °C10 September 2022	2.2 °C20 May 2022	20.4 °C	1,341 mm	37	0
2021	35.7 °C21 September 2021	-0.1 °C20 July 2021	20.7 °C	1,116 mm	67	1
2020	36.0 °C7 October 2020	3.7 °C28 May 2020	20.9 °C	1,269 mm	65	0
2019	35.1 °C12 September 2019	3.8 °C7 July 2019	21.6 °C	1,251 mm	86	0
2018	33.0 °C18 December 2018	4.8 °C21 May 2018	21.3 °C	1,248 mm	60	0
2017	34.9 °C14 October 2017	7.6 °C11 June 2017	21.3 °C	1,164 mm	80	0
2016	34.5 °C19 October 2016	3.7 °C13 June 2016	21.4 °C	1,677 mm	92	0
2015	36.2 °C16 October 2015	10.5 °C21 August 2015	21.9 °C	1,616 mm	85	0
2014	35.9 °C19 October 2014	7.9 °C20 July 2014	21.7 °C	887 mm	94	0
2013	34.4 °C11 November 2013	4.8 °C26 July 2013	20.5 °C	1,674 mm	42	0
2012	33.9 °C31 October 2012	5.6 °C15 July 2012	20.9 °C	1,415 mm	60	0
2011	32.6 °C30 September 2011	3.1 °C28 June 2011	20.6 °C	1,630 mm	38	0
2010	33.0 °C29 October 2010	5.2 °C16 August 2010	20.9 °C	1,234 mm	67	0
2009	32.3 °C1 March 2009	4.4 °C3 June 2009	20.8 °C	1,938 mm	40	0
2008	33.9 °C16 October 2008	7.1 °C14 July 2008	20.5 °C	1,597 mm	31	0
2007	34.1 °C29 October 2007	5.3 °C25 May 2007	21.2 °C	1,310 mm	59	0
2006	33.6 °C25 January 2006	6.6 °C22 August 2006	20.6 °C	1,424 mm	26	0
2005	33.2 °C13 October 2005	6.8 °C9 July 2005	20.8 °C	1,385 mm	28	0
2004	32.4 °C24 September 2004	6.2 °C24 July 2004	20.1 °C	1,658 mm	20	0
2003	32.9 °C11 February 2003	6.6 °C18 August 2003	20.8 °C	1,373 mm	46	0
2002	34.1 °C12 October 2002	4.2 °C3 September 2002	21.3 °C	1,417 mm	43	0
2001	31.6 °C7 November 2001	5.9 °C28 June 2001	20.7 °C	1,389 mm	26	0
2000	32.9 °C13 October 2000	3.1 °C18 July 2000	20.3 °C	1,790 mm	28	0
1999	32.9 °C1 October 1999	5.8 °C16 August 1999	20.3 °C	1,424 mm	31	0
1998	32.4 °C31 January 1998	5.7 °C13 July 1998	20.7 °C	1,669 mm	31	0
1997	33.2 °C11 November 1997	3.4 °C9 June 1997	20.6 °C	1,806 mm	41	0
1996	32.5 °C25 January 1996	4.8 °C13 July 1996	20.2 °C	1,920 mm	28	0
1995	33.2 °C18 January 1995	7.9 °C20 May 1995	20.7 °C	1,749 mm	49	0
1994	33.5 °C2 October 1994	0.1 °C10 July 1994	21.0 °C	1,582 mm	42	0
1993	32.9 °C30 November 1993	5.7 °C20 June 1993	20.6 °C	1,600 mm	30	0
1992	31.0 °C15 November 1992	7.8 °C25 August 1992	20.4 °C	1,612 mm	6	0
1991	31.3 °C15 October 1991	7.2 °C17 August 1991	20.3 °C	2,030 mm	10	0
1990	32.5 °C11 October 1990	4.3 °C19 May 1990	20.6 °C	1,334 mm	45	0
1989	31.1 °C9 December 1989	3.6 °C10 July 1989	20.0 °C	1,667 mm	7	0
1988	34.2 °C27 September 1988	2.4 °C6 June 1988	20.4 °C	1,689 mm	30	0
1987	31.6 °C12 October 1987	3.2 °C9 August 1987	20.6 °C	1,526 mm	27	0
1986	32.8 °C7 October 1986	5.2 °C2 June 1986	20.3 °C	1,590 mm	23	0
1985	33.9 °C17 November 1985	2.9 °C8 June 1985	20.2 °C	1,414 mm	26	0
1984	33.0 °C4 November 1984	5.5 °C23 July 1984	20.9 °C	1,334 mm	44	0
1983	31.1 °C17 February 1983	5.1 °C5 August 1983	20.3 °C	2,501 mm	6	0
1982	31.4 °C16 February 1982	9.0 °C31 July 1982	20.2 °C	1,877 mm	8	0
1981	32.4 °C20 September 1981	0.2 °C22 July 1981	20.0 °C	1,551 mm	14	0
1980	32.6 °C28 October 1980	5.2 °C15 June 1980	20.5 °C	1,478 mm	10	0
1979	32.3 °C7 December 1979	-0.3 °C1 June 1979	19.8 °C	1,686 mm	16	1
1978	32.0 °C25 October 1978	2.3 °C16 August 1978	20.1 °C	1,435 mm	24	0
1977	31.4 °C9 February 1977	5.4 °C18 May 1977	20.6 °C	1,599 mm	23	0
1976	32.1 °C19 January 1976	6.0 °C6 July 1976	19.6 °C	2,131 mm	10	0
1975	31.8 °C21 December 1975	4.0 °C18 July 1975	20.1 °C	1,651 mm	28	0
1974	32.4 °C19 November 1974	6.2 °C1 July 1974	20.0 °C	1,564 mm	27	0
1973	33.3 °C22 February 1973	3.3 °C20 June 1973	20.5 °C	1,617 mm	27	0
1972	32.5 °C26 October 1972	3.0 °C9 July 1972	20.0 °C	1,762 mm	9	0
1971	32.8 °C25 January 1971	5.0 °C25 April 1971	19.9 °C	1,326 mm	19	0
1970	31.9 °C24 December 1970	7.4 °C3 July 1970	20.1 °C	1,199 mm	13	0
1969	32.8 °C11 September 1969	2.3 °C11 July 1969	20.7 °C	983 mm	32	0
1968	32.1 °C6 November 1968	3.6 °C18 May 1968	19.4 °C	976 mm	20	0
1967	31.2 °C20 September 1967	4.9 °C9 June 1967	20.2 °C	1,546 mm	12	0
1966	31.6 °C16 September 1966	6.1 °C23 September 1966	19.6 °C	1,636 mm	9	0
1965	30.9 °C5 September 1965	0.4 °C12 July 1965	19.3 °C	1,851 mm	6	0
1964	29.8 °C1 September 1964	3.7 °C28 July 1964	18.9 °C	2,164 mm	0	0
1963	35.1 °C18 October 1963	4.1 °C22 June 1963	20.7 °C	1,241 mm	53	0
1962	30.3 °C11 September 1962	3.9 °C7 July 1962	18.8 °C	2,077 mm	1	0
1961	35.8 °C28 September 1961	8.7 °C2 August 1961	20.6 °C	1,643 mm	49	0
1960	34.7 °C25 September 1960	5.9 °C10 July 1960	19.3 °C	1,874 mm	9	0
1959	31.2 °C7 September 1959	5.2 °C8 June 1959	20.1 °C	1,581 mm	13	0
1958	32.2 °C16 November 1958	5.3 °C22 June 1958	19.7 °C	1,521 mm	23	0
1957	32.6 °C20 October 1957	3.3 °C21 July 1957	19.5 °C	1,635 mm	9	0
1956	31.4 °C2 February 1956	5.0 °C22 July 1956	18.9 °C	1,409 mm	11	0
1955	33.9 °C1 October 1955	5.3 °C26 May 1955	19.8 °C	1,373 mm	21	0
1954	32.7 °C22 September 1954	5.2 °C21 June 1954	19.7 °C	2,073 mm	12	0
1953	30.2 °C21 August 1953	7.6 °C6 July 1953	19.7 °C	1,820 mm	1	0
1952	31.7 °C30 September 1952	4.9 °C16 July 1952	19.3 °C	1,726 mm	9	0
1951	32.1 °C19 November 1951	8.5 °C16 July 1951	19.4 °C	1,471 mm	11	0
1950	30.9 °C17 September 1950	6.8 °C10 June 1950	19.3 °C	1,876 mm	4	0
1949	30.9 °C13 October 1949	8.8 °C5 July 1949	19.2 °C	1,861 mm	2	0
1948	33.8 °C27 September 1948	5.4 °C16 June 1948	19.8 °C	1,426 mm	15	0
1947	31.5 °C18 January 1947	4.7 °C8 July 1947	19.0 °C	1,923 mm	7	0
1946	29.7 °C22 December 1946	5.0 °C27 July 1946	19.5 °C	1,884 mm	0	0
1945	30.0 °C28 September 1945	8.2 °C21 May 1945	19.3 °C	2,450 mm	1	0
1944	32.4 °C7 September 1944	7.3 °C10 June 1944	19.6 °C	1,794 mm	19	0
1943	29.6 °C17 January 1943	7.2 °C27 June 1943	18.6 °C	1,595 mm	0	0
1942	33.9 °C28 November 1942	3.4 °C18 June 1942	19.0 °C	1,398 mm	23	0
1941	29.3 °C10 January 1941	7.2 °C30 May 1941	19.5 °C	2,493 mm	0	0
1940	30.5 °C23 August 1940	8.0 °C19 August 1940	19.5 °C	2,214 mm	3	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

27.1 °C

+1.5 °C

Hot days (≥ 30 °C)

75 d/yr

+45

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1038 mm

-558 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.7 °C	+1.7 °C	177 mm	-93 mm
Feb	29.9 °C	+2.7 °C	93 mm	-131 mm
Mar	29.3 °C	+2.5 °C	95 mm	-88 mm
Apr	26.3 °C	+0.7 °C	99 mm	+10 mm
May	25.0 °C	+1.5 °C	10 mm	-53 mm
Jun	23.6 °C	+0.9 °C	31 mm	-6 mm
Jul	23.5 °C	+0.6 °C	4 mm	-26 mm
Aug	26.3 °C	+1.2 °C	5 mm	-26 mm
Sep	28.8 °C	+2.0 °C	32 mm	-39 mm
Oct	27.6 °C	+0.7 °C	139 mm	-9 mm
Nov	27.4 °C	+0.8 °C	175 mm	-17 mm
Dec	28.5 °C	+1.9 °C	179 mm	-80 mm

The year's extremes

Hottest day

33.7 °C

6 Oct 2025

Coldest day

2.2 °C

25 Jun 2025

Wettest day

42.0 mm

8 Nov 2025

Windiest day

27.3 km/h

10 Dec 2025

Strongest gust

70.2 km/h

10 Dec 2025

Hottest feels-like

38.3 °C

28 Dec 2025

Coldest feels-like

-0.8 °C

25 Jun 2025

Sunniest day

13.3 h

24 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 São João da Boa Vista?

São João da Boa Vista has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.3 °C and it receives 1,596 mm of precipitation per year.

What is the hottest day ever recorded in São João da Boa Vista?

The hottest day measured in São João da Boa Vista between 1940 and 2025 was 16 October 2015, reaching 36.2 °C.

What is the coldest day in São João da Boa Vista?

The coldest day measured in São João da Boa Vista between 1940 and 2025 was 1 June 1979, at -0.3 °C.

Does it snow in São João da Boa Vista?

Almost never: São João da Boa Vista sees virtually no snow, with about 0 frost days per year.

Has the climate of São João da Boa Vista warmed?

Yes: São João da Boa Vista warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in São João da Boa Vista?

The wettest day measured in São João da Boa Vista between 1940 and 2025 was 28 March 1991, with 102 mm of rain in 24 hours.

What was the windiest day in São João da Boa Vista?

The windiest day measured in São João da Boa Vista between 1940 and 2025 was 11 October 1972, with winds reaching 30.5 km/h.

What is the warmest month in São João da Boa Vista?

The warmest month in São João da Boa Vista is February (22.5 °C on average); the coldest is July (16.7 °C).

How much does it rain in São João da Boa Vista?

São João da Boa Vista receives on average 1,596 mm of precipitation per year, spread over about 167 rainy days.

Is it sunny in São João da Boa Vista?

São João da Boa Vista gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.

Are there tropical nights in São João da Boa Vista?

Yes: São João da Boa Vista has on average 19 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in São João da Boa Vista?

In São João da Boa Vista, between 1940 and 2025, the highest apparent temperature reached 39.5 °C on 18 January 2015, and the lowest was -3.7 °C on 20 July 2021.

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