Altinópolis climate — normals and trends

Q: What is the climate of Altinópolis?

Altinópolis has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 21.2 °C and it receives 1,566 mm of precipitation per year.

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

The hottest day measured in Altinópolis between 1940 and 2025 was 18 October 1963, reaching 37.8 °C.

Q: What is the coldest day in Altinópolis?

The coldest day measured in Altinópolis between 1940 and 2025 was 1 June 1979, at 0.7 °C.

Q: Does it snow in Altinópolis?

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

Q: Has the climate of Altinópolis warmed?

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

Q: What is the wettest day in Altinópolis?

The wettest day measured in Altinópolis between 1940 and 2025 was 3 January 1961, with 152 mm of rain in 24 hours.

Q: What was the windiest day in Altinópolis?

The windiest day measured in Altinópolis between 1940 and 2025 was 3 July 1976, with winds reaching 31.5 km/h.

Q: What is the warmest month in Altinópolis?

The warmest month in Altinópolis is January (22.9 °C on average); the coldest is June (18.0 °C).

Q: How much does it rain in Altinópolis?

Altinópolis receives on average 1,566 mm of precipitation per year, spread over about 162 rainy days.

Q: Is it sunny in Altinópolis?

Altinópolis gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.

Altinópolis (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 21.2 °C and it receives 1,566 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 January (22.9 °C on average) and the coldest is June (18.0 °C). Rainfall peaks in December.

Altinópolis averages 0 frost days, 47 hot days (≥ 30 °C) and 162 rainy days per year.

Altinópolis 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 37.8 °C (on 18 October 1963) and the coldest 0.7 °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

AltinópolisSão Paulo

coords: -21.03°, -47.37°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthJanuaryColdest monthJuneWettest monthDecemberDriest monthJuly

Mean daily temperature

21.2°C

Average daily high

26.5°C

Average daily low

16.9°C

Annual rainfall

1,566mm

Sunshine / day

10.2h

Mean relative humidity

72%

Average peak wind

13.4km/h

Seasonal range

4.9°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

47 d/yr

Rainy days (≥ 1 mm)

162 d/yr

Annual snowfall

0.0 cm

Average feels-like high

28.3 °C

Average feels-like low

17.2 °C

Average peak gust

32.6 km/h

Tropical nights (≥ 20 °C)

40 d/yr

Solar radiation

18.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.8 °C

since 1940

+0.2 °C per decade · r² = 0.63 · 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

37.8 °C

18 October 1963

Coldest day

0.7 °C

1 June 1979

Wettest day

152 mm

3 January 1961

Windiest day

31.5 km/h

3 July 1976

Strongest gust

80.3 km/h

30 July 1989

Hottest feels-like

40.2 °C

3 February 1998

Coldest feels-like

-2.6 °C

22 July 1981

Sunniest day

13.3 h

16 December 1946

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	34.4 °C7 October 2025	3.7 °C11 August 2025	21.6 °C	910 mm	96
2024	37.4 °C8 October 2024	2.8 °C11 August 2024	22.5 °C	1,246 mm	112
2023	37.3 °C14 November 2023	5.1 °C15 July 2023	21.8 °C	1,295 mm	96
2022	33.5 °C10 September 2022	2.4 °C20 May 2022	21.1 °C	1,283 mm	51
2021	36.5 °C21 September 2021	1.8 °C20 July 2021	21.5 °C	1,035 mm	77
2020	36.4 °C6 October 2020	5.2 °C28 May 2020	21.8 °C	1,350 mm	78
2019	35.7 °C12 September 2019	4.7 °C7 July 2019	22.3 °C	1,283 mm	87
2018	34.8 °C24 September 2018	5.2 °C21 May 2018	22.2 °C	1,208 mm	75
2017	35.6 °C14 October 2017	8.5 °C11 June 2017	22.2 °C	1,225 mm	96
2016	34.4 °C18 September 2016	5.2 °C13 June 2016	22.2 °C	1,565 mm	109
2015	36.9 °C16 October 2015	10.7 °C30 May 2015	22.6 °C	1,510 mm	102
2014	36.8 °C15 October 2014	8.8 °C20 July 2014	22.3 °C	976 mm	107
2013	33.8 °C28 September 2013	4.5 °C26 July 2013	21.4 °C	1,517 mm	53
2012	35.0 °C28 October 2012	6.2 °C14 July 2012	21.9 °C	1,429 mm	77
2011	34.3 °C30 September 2011	4.9 °C5 August 2011	21.7 °C	1,580 mm	62
2010	33.5 °C29 October 2010	7.4 °C7 June 2010	21.9 °C	1,274 mm	86
2009	33.1 °C18 September 2009	6.4 °C4 June 2009	21.8 °C	1,750 mm	51
2008	34.6 °C26 October 2008	9.4 °C9 July 2008	21.6 °C	1,506 mm	53
2007	35.2 °C23 September 2007	7.2 °C25 May 2007	22.2 °C	1,465 mm	79
2006	34.2 °C25 January 2006	8.5 °C28 June 2006	21.6 °C	1,553 mm	51
2005	34.8 °C17 October 2005	9.1 °C11 August 2005	21.7 °C	1,459 mm	51
2004	34.3 °C25 September 2004	7.3 °C28 May 2004	21.2 °C	1,676 mm	45
2003	34.8 °C25 September 2003	7.7 °C27 May 2003	21.6 °C	1,363 mm	59
2002	35.6 °C12 October 2002	5.5 °C9 July 2002	22.4 °C	1,247 mm	75
2001	33.7 °C10 September 2001	6.5 °C28 June 2001	21.6 °C	1,317 mm	52
2000	34.0 °C14 October 2000	4.0 °C18 July 2000	21.3 °C	1,629 mm	44
1999	34.8 °C16 October 1999	6.6 °C24 June 1999	21.4 °C	1,435 mm	60
1998	33.6 °C13 September 1998	8.7 °C1 June 1998	21.6 °C	1,551 mm	70
1997	34.5 °C9 November 1997	4.6 °C9 June 1997	21.5 °C	1,780 mm	68
1996	32.5 °C25 January 1996	5.8 °C13 July 1996	21.2 °C	1,861 mm	55
1995	33.6 °C18 January 1995	8.4 °C8 June 1995	21.6 °C	1,795 mm	75
1994	35.0 °C2 October 1994	1.5 °C27 June 1994	21.9 °C	1,576 mm	75
1993	33.1 °C30 November 1993	6.0 °C20 June 1993	21.3 °C	1,535 mm	44
1992	31.1 °C15 November 1992	9.6 °C15 August 1992	21.1 °C	1,688 mm	10
1991	31.8 °C30 October 1991	9.1 °C7 July 1991	21.3 °C	2,007 mm	34
1990	33.6 °C11 October 1990	4.8 °C19 May 1990	21.6 °C	1,282 mm	74
1989	31.2 °C24 September 1989	6.7 °C11 August 1989	20.8 °C	1,685 mm	23
1988	35.6 °C27 September 1988	4.2 °C5 June 1988	21.4 °C	1,543 mm	46
1987	34.1 °C18 October 1987	4.8 °C9 August 1987	21.6 °C	1,278 mm	50
1986	34.7 °C7 October 1986	6.1 °C2 June 1986	21.2 °C	1,508 mm	41
1985	35.5 °C17 November 1985	2.7 °C9 June 1985	21.2 °C	1,507 mm	53
1984	33.9 °C14 January 1984	7.2 °C27 August 1984	21.8 °C	1,317 mm	60
1983	31.4 °C11 March 1983	6.5 °C4 August 1983	21.1 °C	2,318 mm	13
1982	31.7 °C22 February 1982	9.1 °C28 May 1982	21.1 °C	1,993 mm	24
1981	33.1 °C20 September 1981	0.9 °C22 July 1981	21.0 °C	1,409 mm	31
1980	35.0 °C28 October 1980	5.4 °C15 June 1980	21.4 °C	1,293 mm	36
1979	33.3 °C7 December 1979	0.7 °C1 June 1979	20.8 °C	1,499 mm	34
1978	32.3 °C27 January 1978	4.6 °C16 August 1978	21.1 °C	1,396 mm	35
1977	32.7 °C28 February 1977	4.7 °C18 May 1977	21.5 °C	1,393 mm	52
1976	32.1 °C19 January 1976	6.0 °C6 July 1976	20.5 °C	1,874 mm	13
1975	32.6 °C8 September 1975	4.7 °C18 July 1975	21.1 °C	1,395 mm	53
1974	33.0 °C19 November 1974	8.1 °C17 August 1974	21.1 °C	1,528 mm	52
1973	33.3 °C18 September 1973	3.7 °C20 June 1973	21.5 °C	1,442 mm	49
1972	33.8 °C26 October 1972	4.9 °C9 July 1972	21.0 °C	1,576 mm	16
1971	33.0 °C25 January 1971	7.1 °C2 June 1971	20.7 °C	1,446 mm	28
1970	33.1 °C24 December 1970	9.2 °C15 July 1970	21.1 °C	1,049 mm	29
1969	34.3 °C11 September 1969	4.0 °C11 July 1969	21.7 °C	1,003 mm	65
1968	35.0 °C8 October 1968	5.7 °C18 May 1968	20.6 °C	960 mm	38
1967	33.8 °C6 September 1967	7.1 °C9 June 1967	21.2 °C	1,473 mm	43
1966	34.0 °C16 September 1966	8.5 °C23 September 1966	20.7 °C	1,691 mm	19
1965	33.0 °C5 September 1965	1.8 °C12 July 1965	20.2 °C	2,124 mm	21
1964	32.7 °C2 September 1964	5.9 °C28 July 1964	20.0 °C	2,011 mm	8
1963	37.8 °C18 October 1963	5.6 °C22 June 1963	22.1 °C	1,049 mm	90
1962	32.6 °C11 September 1962	5.4 °C18 July 1962	19.9 °C	2,398 mm	19
1961	37.2 °C28 September 1961	9.3 °C29 May 1961	21.7 °C	1,776 mm	68
1960	36.5 °C25 September 1960	6.1 °C10 July 1960	20.4 °C	2,036 mm	19
1959	33.1 °C23 September 1959	5.9 °C8 June 1959	21.2 °C	1,428 mm	43
1958	33.0 °C7 October 1958	8.8 °C30 May 1958	20.8 °C	1,263 mm	51
1957	34.9 °C20 October 1957	4.0 °C22 July 1957	20.5 °C	1,679 mm	30
1956	32.4 °C2 February 1956	5.9 °C6 June 1956	20.0 °C	1,447 mm	35
1955	35.8 °C17 September 1955	5.8 °C23 May 1955	21.1 °C	1,371 mm	44
1954	34.6 °C19 September 1954	5.9 °C21 June 1954	20.9 °C	1,840 mm	30
1953	31.8 °C22 August 1953	8.4 °C6 July 1953	20.7 °C	1,988 mm	4
1952	33.2 °C4 September 1952	5.8 °C30 April 1952	20.3 °C	1,811 mm	20
1951	32.7 °C20 November 1951	9.9 °C9 July 1951	20.5 °C	1,493 mm	26
1950	33.5 °C19 September 1950	7.1 °C11 June 1950	20.3 °C	2,048 mm	18
1949	33.5 °C13 October 1949	9.2 °C18 May 1949	20.5 °C	1,859 mm	21
1948	35.5 °C27 September 1948	6.7 °C16 June 1948	20.9 °C	1,403 mm	26
1947	31.8 °C21 January 1947	6.6 °C8 July 1947	20.0 °C	1,982 mm	11
1946	31.2 °C8 September 1946	5.2 °C27 July 1946	20.5 °C	1,755 mm	10
1945	31.3 °C29 September 1945	9.5 °C21 May 1945	20.3 °C	2,395 mm	8
1944	33.7 °C7 September 1944	8.4 °C9 June 1944	20.6 °C	1,992 mm	23
1943	28.7 °C17 January 1943	7.8 °C27 June 1943	19.4 °C	1,722 mm	0
1942	36.6 °C28 November 1942	3.8 °C19 June 1942	20.1 °C	1,354 mm	45
1941	29.9 °C10 January 1941	8.2 °C30 May 1941	20.4 °C	2,427 mm	0
1940	32.1 °C23 August 1940	8.2 °C19 August 1940	20.5 °C	2,231 mm	7

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

27.7 °C

+1.2 °C

Hot days (≥ 30 °C)

96 d/yr

+49

Frost days (< 0 °C)

0 d/yr

Annual rainfall

910 mm

-656 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	29.0 °C	+1.6 °C	136 mm	-131 mm
Feb	29.6 °C	+2.0 °C	98 mm	-121 mm
Mar	29.5 °C	+2.2 °C	106 mm	-76 mm
Apr	26.6 °C	+0.3 °C	104 mm	+19 mm
May	25.5 °C	+1.1 °C	3 mm	-46 mm
Jun	24.7 °C	+0.9 °C	22 mm	-7 mm
Jul	24.8 °C	+0.7 °C	5 mm	-16 mm
Aug	27.1 °C	+0.6 °C	9 mm	-14 mm
Sep	29.8 °C	+1.5 °C	21 mm	-44 mm
Oct	28.5 °C	+0.5 °C	105 mm	-45 mm
Nov	28.8 °C	+1.5 °C	123 mm	-78 mm
Dec	28.8 °C	+1.8 °C	177 mm	-96 mm

The year's extremes

Hottest day

34.4 °C

7 Oct 2025

Coldest day

3.7 °C

11 Aug 2025

Wettest day

34.5 mm

8 Nov 2025

Windiest day

27.6 km/h

9 Sep 2025

Strongest gust

65.5 km/h

22 Sep 2025

Hottest feels-like

38.6 °C

29 Dec 2025

Coldest feels-like

1.1 °C

11 Aug 2025

Sunniest day

13.2 h

23 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 Altinópolis?

Altinópolis has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 21.2 °C and it receives 1,566 mm of precipitation per year.

What is the hottest day ever recorded in Altinópolis?

The hottest day measured in Altinópolis between 1940 and 2025 was 18 October 1963, reaching 37.8 °C.

What is the coldest day in Altinópolis?

The coldest day measured in Altinópolis between 1940 and 2025 was 1 June 1979, at 0.7 °C.

Does it snow in Altinópolis?

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

Has the climate of Altinópolis warmed?

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

What is the wettest day in Altinópolis?

The wettest day measured in Altinópolis between 1940 and 2025 was 3 January 1961, with 152 mm of rain in 24 hours.

What was the windiest day in Altinópolis?

The windiest day measured in Altinópolis between 1940 and 2025 was 3 July 1976, with winds reaching 31.5 km/h.

What is the warmest month in Altinópolis?

The warmest month in Altinópolis is January (22.9 °C on average); the coldest is June (18.0 °C).

How much does it rain in Altinópolis?

Altinópolis receives on average 1,566 mm of precipitation per year, spread over about 162 rainy days.

Is it sunny in Altinópolis?

Altinópolis gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.

Are there tropical nights in Altinópolis?

Yes: Altinópolis has on average 40 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Altinópolis?

In Altinópolis, between 1940 and 2025, the highest apparent temperature reached 40.2 °C on 3 February 1998, and the lowest was -2.6 °C on 22 July 1981.

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