Santos Dumont climate — normals and trends

Q: What is the climate of Santos Dumont?

Santos Dumont has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 19.7 °C and it receives 1,846 mm of precipitation per year.

Q: What is the hottest day ever recorded in Santos Dumont?

The hottest day measured in Santos Dumont between 1940 and 2025 was 24 September 2007, reaching 35.8 °C.

Q: What is the coldest day in Santos Dumont?

The coldest day measured in Santos Dumont between 1940 and 2025 was 1 June 1979, at 3.8 °C.

Q: Does it snow in Santos Dumont?

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

Q: Has the climate of Santos Dumont warmed?

Yes: Santos Dumont warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Santos Dumont?

The wettest day measured in Santos Dumont between 1940 and 2025 was 19 January 1985, with 172 mm of rain in 24 hours.

Q: What was the windiest day in Santos Dumont?

The windiest day measured in Santos Dumont between 1940 and 2025 was 29 December 1990, with winds reaching 31.8 km/h.

Q: What is the warmest month in Santos Dumont?

The warmest month in Santos Dumont is February (22.5 °C on average); the coldest is July (16.5 °C).

Q: How much does it rain in Santos Dumont?

Santos Dumont receives on average 1,846 mm of precipitation per year, spread over about 177 rainy days.

Q: Is it sunny in Santos Dumont?

Santos Dumont gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.

Santos Dumont (Brazil) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 19.7 °C and it receives 1,846 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 (16.5 °C). Rainfall peaks in December.

Santos Dumont averages 0 frost days, 17 hot days (≥ 30 °C) and 177 rainy days per year.

Santos Dumont has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.8 °C (on 24 September 2007) and the coldest 3.8 °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

Santos DumontMinas Gerais

coords: -21.46°, -43.55°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthFebruaryColdest monthJulyWettest monthDecemberDriest monthJuly

Mean daily temperature

19.7°C

Average daily high

24.5°C

Average daily low

16.0°C

Annual rainfall

1,846mm

Sunshine / day

8.9h

Mean relative humidity

80%

Average peak wind

12.5km/h

Seasonal range

6.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

17 d/yr

Rainy days (≥ 1 mm)

177 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.2 °C

Average feels-like low

16.7 °C

Average peak gust

30.4 km/h

Tropical nights (≥ 20 °C)

19 d/yr

Solar radiation

16.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.8 °C

since 1940

+0.2 °C per decade · r² = 0.60 · 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

35.8 °C

24 September 2007

Coldest day

3.8 °C

1 June 1979

Wettest day

172 mm

19 January 1985

Windiest day

31.8 km/h

29 December 1990

Strongest gust

75.2 km/h

5 July 2019

Hottest feels-like

39.5 °C

17 February 1994

Coldest feels-like

0.9 °C

1 June 1979

Sunniest day

13.3 h

28 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	33.1 °C18 February 2025	6.9 °C31 July 2025	20.1 °C	1,308 mm	36
2024	32.9 °C2 October 2024	7.8 °C11 August 2024	21.2 °C	1,570 mm	51
2023	35.0 °C18 November 2023	8.4 °C4 July 2023	20.7 °C	1,678 mm	43
2022	33.5 °C10 September 2022	7.2 °C21 May 2022	19.8 °C	1,871 mm	14
2021	32.8 °C21 September 2021	5.8 °C31 July 2021	19.8 °C	1,715 mm	19
2020	34.3 °C3 October 2020	8.5 °C29 May 2020	20.1 °C	1,844 mm	30
2019	33.8 °C3 February 2019	7.1 °C8 July 2019	20.8 °C	1,273 mm	42
2018	32.3 °C16 March 2018	7.0 °C21 May 2018	20.5 °C	1,907 mm	29
2017	33.4 °C14 October 2017	8.5 °C4 July 2017	20.1 °C	1,095 mm	20
2016	33.7 °C10 February 2016	5.0 °C14 June 2016	20.6 °C	1,434 mm	42
2015	33.5 °C16 October 2015	10.1 °C9 June 2015	20.8 °C	1,490 mm	43
2014	33.9 °C19 October 2014	6.5 °C8 August 2014	20.4 °C	987 mm	29
2013	33.2 °C12 November 2013	7.4 °C6 July 2013	19.9 °C	1,667 mm	30
2012	33.9 °C19 September 2012	7.6 °C27 September 2012	20.0 °C	1,789 mm	28
2011	32.5 °C23 February 2011	7.2 °C3 September 2011	19.8 °C	1,589 mm	28
2010	32.5 °C16 February 2010	7.3 °C18 August 2010	20.3 °C	1,635 mm	53
2009	32.2 °C3 March 2009	7.5 °C13 July 2009	20.5 °C	2,010 mm	27
2008	32.4 °C27 October 2008	8.4 °C17 July 2008	19.9 °C	2,261 mm	26
2007	35.8 °C24 September 2007	5.8 °C30 July 2007	20.5 °C	1,611 mm	34
2006	34.5 °C25 January 2006	8.9 °C6 September 2006	20.2 °C	1,507 mm	24
2005	32.6 °C14 October 2005	8.9 °C10 July 2005	20.3 °C	1,680 mm	18
2004	33.8 °C29 September 2004	8.1 °C24 July 2004	19.8 °C	2,312 mm	15
2003	32.5 °C16 December 2003	9.5 °C12 August 2003	20.2 °C	1,704 mm	27
2002	32.8 °C17 October 2002	9.8 °C3 September 2002	20.8 °C	1,800 mm	28
2001	31.8 °C1 February 2001	9.2 °C29 June 2001	20.1 °C	1,520 mm	13
2000	33.0 °C15 January 2000	5.9 °C18 July 2000	19.6 °C	1,453 mm	17
1999	32.8 °C20 January 1999	7.7 °C16 August 1999	19.4 °C	1,442 mm	17
1998	32.4 °C5 February 1998	6.7 °C8 June 1998	20.1 °C	1,685 mm	28
1997	33.7 °C9 September 1997	6.9 °C2 June 1997	20.4 °C	2,019 mm	38
1996	32.9 °C31 January 1996	7.0 °C25 July 1996	19.7 °C	2,001 mm	27
1995	34.2 °C17 January 1995	7.8 °C6 June 1995	20.4 °C	1,769 mm	48
1994	33.6 °C17 February 1994	5.7 °C10 July 1994	20.4 °C	1,722 mm	37
1993	32.7 °C20 September 1993	8.4 °C22 June 1993	20.5 °C	1,749 mm	22
1992	31.3 °C7 April 1992	8.2 °C27 July 1992	19.9 °C	1,962 mm	10
1991	32.2 °C13 December 1991	8.5 °C5 August 1991	19.9 °C	1,938 mm	12
1990	32.3 °C25 January 1990	7.7 °C16 September 1990	20.1 °C	1,353 mm	22
1989	30.4 °C21 February 1989	7.2 °C4 August 1989	19.7 °C	1,758 mm	3
1988	33.6 °C30 January 1988	5.7 °C16 July 1988	19.7 °C	1,748 mm	19
1987	32.1 °C9 January 1987	7.2 °C27 May 1987	20.3 °C	2,067 mm	26
1986	32.1 °C18 October 1986	8.6 °C9 July 1986	20.1 °C	1,617 mm	7
1985	31.5 °C4 February 1985	5.9 °C9 June 1985	19.6 °C	2,136 mm	6
1984	32.3 °C16 January 1984	7.9 °C1 August 1984	20.3 °C	1,490 mm	23
1983	30.8 °C26 February 1983	7.0 °C6 August 1983	20.0 °C	2,146 mm	7
1982	30.2 °C18 September 1982	9.1 °C1 August 1982	19.7 °C	2,083 mm	2
1981	31.2 °C29 September 1981	6.7 °C22 July 1981	19.4 °C	1,838 mm	8
1980	32.0 °C28 October 1980	7.4 °C30 June 1980	19.8 °C	1,465 mm	7
1979	30.7 °C15 December 1979	3.8 °C1 June 1979	19.2 °C	2,348 mm	3
1978	30.6 °C21 January 1978	5.8 °C16 August 1978	19.5 °C	1,759 mm	8
1977	31.5 °C1 March 1977	7.4 °C21 May 1977	20.1 °C	1,722 mm	8
1976	31.0 °C12 January 1976	8.1 °C3 June 1976	19.5 °C	1,947 mm	7
1975	32.2 °C9 December 1975	7.5 °C19 July 1975	19.5 °C	1,833 mm	14
1974	31.0 °C22 February 1974	7.2 °C17 July 1974	19.6 °C	1,665 mm	7
1973	33.9 °C11 February 1973	7.2 °C20 June 1973	20.3 °C	1,883 mm	25
1972	32.3 °C6 January 1972	7.3 °C24 June 1972	19.8 °C	1,746 mm	16
1971	32.1 °C31 January 1971	8.3 °C20 July 1971	19.5 °C	1,536 mm	15
1970	31.6 °C24 December 1970	8.0 °C14 August 1970	19.6 °C	1,361 mm	12
1969	32.8 °C17 February 1969	6.9 °C19 July 1969	19.8 °C	1,601 mm	23
1968	32.4 °C3 November 1968	7.2 °C27 May 1968	18.5 °C	1,159 mm	11
1967	31.8 °C12 October 1967	6.7 °C10 June 1967	19.8 °C	2,110 mm	11
1966	32.1 °C16 September 1966	8.3 °C19 September 1966	19.2 °C	1,944 mm	5
1965	30.7 °C20 September 1965	7.1 °C12 July 1965	19.0 °C	2,408 mm	4
1964	30.2 °C19 February 1964	7.9 °C31 July 1964	18.3 °C	2,175 mm	1
1963	35.3 °C30 September 1963	7.5 °C23 June 1963	19.9 °C	1,052 mm	29
1962	29.7 °C16 November 1962	6.7 °C18 June 1962	18.3 °C	2,571 mm	0
1961	35.6 °C29 September 1961	8.6 °C7 August 1961	19.8 °C	2,261 mm	27
1960	33.6 °C25 September 1960	6.7 °C16 July 1960	18.6 °C	2,272 mm	6
1959	30.5 °C27 February 1959	7.9 °C13 June 1959	19.4 °C	1,707 mm	6
1958	32.1 °C7 October 1958	7.7 °C22 September 1958	19.3 °C	1,460 mm	10
1957	30.6 °C26 October 1957	6.0 °C23 July 1957	19.1 °C	2,107 mm	1
1956	31.1 °C2 February 1956	6.9 °C12 August 1956	18.3 °C	1,638 mm	10
1955	32.6 °C1 October 1955	8.7 °C17 July 1955	19.0 °C	1,541 mm	9
1954	33.4 °C19 September 1954	8.4 °C12 August 1954	19.5 °C	2,303 mm	14
1953	30.5 °C22 August 1953	7.5 °C29 July 1953	19.2 °C	2,197 mm	4
1952	31.0 °C19 September 1952	7.8 °C16 July 1952	19.1 °C	2,552 mm	4
1951	32.1 °C16 November 1951	7.6 °C4 June 1951	18.7 °C	1,642 mm	10
1950	32.2 °C6 September 1950	8.4 °C14 July 1950	18.9 °C	2,266 mm	6
1949	30.0 °C17 March 1949	8.1 °C4 July 1949	18.7 °C	2,385 mm	1
1948	31.3 °C27 September 1948	8.7 °C8 July 1948	19.1 °C	1,464 mm	10
1947	32.7 °C10 January 1947	7.9 °C4 August 1947	18.7 °C	2,326 mm	16
1946	30.6 °C3 November 1946	8.5 °C3 July 1946	19.5 °C	2,295 mm	5
1945	31.0 °C30 August 1945	9.4 °C14 July 1945	19.3 °C	2,353 mm	2
1944	32.4 °C2 October 1944	8.2 °C22 August 1944	19.0 °C	2,671 mm	6
1943	28.1 °C3 January 1943	8.9 °C30 July 1943	17.8 °C	2,225 mm	0
1942	33.4 °C7 October 1942	5.1 °C24 June 1942	18.3 °C	1,850 mm	4
1941	31.9 °C13 January 1941	8.2 °C9 June 1941	19.1 °C	2,931 mm	4
1940	31.1 °C24 August 1940	9.0 °C10 June 1940	19.4 °C	2,766 mm	5

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

25.1 °C

+0.6 °C

Hot days (≥ 30 °C)

36 d/yr

+19

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1308 mm

-538 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.8 °C	+0.9 °C	391 mm	+83 mm
Feb	29.3 °C	+2.1 °C	11 mm	-211 mm
Mar	27.2 °C	+0.8 °C	228 mm	+10 mm
Apr	24.8 °C	+0.1 °C	96 mm	-7 mm
May	22.8 °C	0.0 °C	17 mm	-35 mm
Jun	22.8 °C	+0.8 °C	7 mm	-21 mm
Jul	21.8 °C	+0.1 °C	12 mm	-13 mm
Aug	23.0 °C	-0.1 °C	14 mm	-22 mm
Sep	23.9 °C	-0.3 °C	37 mm	-49 mm
Oct	24.3 °C	-0.4 °C	106 mm	-79 mm
Nov	25.9 °C	+0.9 °C	177 mm	-91 mm
Dec	28.1 °C	+2.2 °C	213 mm	-103 mm

The year's extremes

Hottest day

33.1 °C

18 Feb 2025

Coldest day

6.9 °C

31 Jul 2025

Wettest day

63.8 mm

9 Jan 2025

Windiest day

30.6 km/h

19 Oct 2025

Strongest gust

72.0 km/h

10 Dec 2025

Hottest feels-like

38.9 °C

28 Dec 2025

Coldest feels-like

5.0 °C

31 Jul 2025

Sunniest day

13.3 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 Santos Dumont?

Santos Dumont has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 19.7 °C and it receives 1,846 mm of precipitation per year.

What is the hottest day ever recorded in Santos Dumont?

The hottest day measured in Santos Dumont between 1940 and 2025 was 24 September 2007, reaching 35.8 °C.

What is the coldest day in Santos Dumont?

The coldest day measured in Santos Dumont between 1940 and 2025 was 1 June 1979, at 3.8 °C.

Does it snow in Santos Dumont?

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

Has the climate of Santos Dumont warmed?

Yes: Santos Dumont warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Santos Dumont?

The wettest day measured in Santos Dumont between 1940 and 2025 was 19 January 1985, with 172 mm of rain in 24 hours.

What was the windiest day in Santos Dumont?

The windiest day measured in Santos Dumont between 1940 and 2025 was 29 December 1990, with winds reaching 31.8 km/h.

What is the warmest month in Santos Dumont?

The warmest month in Santos Dumont is February (22.5 °C on average); the coldest is July (16.5 °C).

How much does it rain in Santos Dumont?

Santos Dumont receives on average 1,846 mm of precipitation per year, spread over about 177 rainy days.

Is it sunny in Santos Dumont?

Santos Dumont gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.

Are there tropical nights in Santos Dumont?

Yes: Santos Dumont has on average 19 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Santos Dumont?

In Santos Dumont, between 1940 and 2025, the highest apparent temperature reached 39.5 °C on 17 February 1994, and the lowest was 0.9 °C on 1 June 1979.

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