Atibaia climate — normals and trends

Q: What is the climate of Atibaia?

Atibaia has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 19.2 °C and it receives 1,437 mm of precipitation per year.

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

The hottest day measured in Atibaia between 1940 and 2025 was 2 October 2020, reaching 35.5 °C.

Q: What is the coldest day in Atibaia?

The coldest day measured in Atibaia between 1940 and 2025 was 1 June 1979, at 0.1 °C.

Q: Does it snow in Atibaia?

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

Q: Has the climate of Atibaia warmed?

Yes: Atibaia warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Atibaia?

The wettest day measured in Atibaia between 1940 and 2025 was 19 January 1977, with 175 mm of rain in 24 hours.

Q: What was the windiest day in Atibaia?

The windiest day measured in Atibaia between 1940 and 2025 was 8 September 1978, with winds reaching 38.6 km/h.

Q: What is the warmest month in Atibaia?

The warmest month in Atibaia is February (21.9 °C on average); the coldest is July (15.7 °C).

Q: How much does it rain in Atibaia?

Atibaia receives on average 1,437 mm of precipitation per year, spread over about 160 rainy days.

Q: Is it sunny in Atibaia?

Atibaia gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

Atibaia (Brazil) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 19.2 °C and it receives 1,437 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 (21.9 °C on average) and the coldest is July (15.7 °C). Rainfall peaks in January.

Atibaia averages 0 frost days, 17 hot days (≥ 30 °C) and 160 rainy days per year.

Atibaia has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.5 °C (on 2 October 2020) and the coldest 0.1 °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

AtibaiaSão Paulo

coords: -23.12°, -46.55°
period: 1940–2025 · 86 yrs

CfbTemperate oceanicWarmest monthFebruaryColdest monthJulyWettest monthJanuaryDriest monthAugust

Mean daily temperature

19.2°C

Average daily high

24.4°C

Average daily low

15.1°C

Annual rainfall

1,437mm

Sunshine / day

9.6h

Mean relative humidity

79%

Average peak wind

14.2km/h

Seasonal range

6.2°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

17 d/yr

Rainy days (≥ 1 mm)

160 d/yr

Annual snowfall

0.0 cm

Average feels-like high

25.7 °C

Average feels-like low

15.1 °C

Average peak gust

33.4 km/h

Tropical nights (≥ 20 °C)

10 d/yr

Solar radiation

17.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.9 °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

35.5 °C

2 October 2020

Coldest day

0.1 °C

1 June 1979

Wettest day

175 mm

19 January 1977

Windiest day

38.6 km/h

8 September 1978

Strongest gust

93.6 km/h

7 June 2011

Hottest feels-like

39.2 °C

20 January 1988

Coldest feels-like

-3.3 °C

1 June 1979

Sunniest day

13.4 h

24 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	33.3 °C26 December 2025	2.7 °C25 June 2025	19.6 °C	1,037 mm	46
2024	34.4 °C26 September 2024	4.2 °C11 August 2024	20.5 °C	1,180 mm	56
2023	35.4 °C13 November 2023	6.9 °C15 July 2023	20.2 °C	1,226 mm	48
2022	31.8 °C9 September 2022	4.0 °C13 June 2022	19.0 °C	1,395 mm	24
2021	33.7 °C20 September 2021	1.1 °C30 July 2021	19.3 °C	1,184 mm	26
2020	35.5 °C2 October 2020	5.0 °C27 May 2020	19.7 °C	1,117 mm	40
2019	34.6 °C4 November 2019	4.4 °C7 July 2019	20.5 °C	1,106 mm	63
2018	32.9 °C18 December 2018	6.2 °C22 May 2018	20.1 °C	1,007 mm	33
2017	32.7 °C12 October 2017	4.5 °C5 July 2017	20.1 °C	1,140 mm	46
2016	33.5 °C17 October 2016	2.2 °C13 June 2016	20.2 °C	1,362 mm	45
2015	34.8 °C19 September 2015	7.9 °C27 June 2015	20.7 °C	1,532 mm	53
2014	35.0 °C19 October 2014	7.7 °C6 August 2014	20.6 °C	901 mm	64
2013	33.5 °C27 December 2013	5.7 °C24 July 2013	19.5 °C	1,356 mm	29
2012	34.0 °C31 October 2012	4.8 °C14 July 2012	19.9 °C	1,368 mm	37
2011	32.2 °C30 September 2011	3.8 °C5 August 2011	19.5 °C	1,467 mm	26
2010	32.2 °C29 October 2010	6.1 °C18 August 2010	19.8 °C	1,256 mm	45
2009	32.4 °C6 March 2009	3.4 °C4 June 2009	19.9 °C	1,645 mm	26
2008	32.6 °C15 October 2008	6.1 °C17 July 2008	19.3 °C	1,526 mm	15
2007	33.1 °C21 October 2007	4.6 °C30 July 2007	20.0 °C	1,271 mm	40
2006	32.3 °C15 September 2006	5.4 °C6 September 2006	19.5 °C	1,348 mm	17
2005	32.0 °C29 August 2005	6.4 °C10 July 2005	19.8 °C	1,188 mm	13
2004	31.5 °C24 September 2004	4.6 °C24 July 2004	19.1 °C	1,402 mm	11
2003	31.9 °C11 February 2003	6.2 °C18 August 2003	19.7 °C	1,264 mm	30
2002	33.2 °C16 October 2002	3.6 °C3 September 2002	20.3 °C	1,186 mm	31
2001	30.9 °C7 January 2001	6.3 °C21 June 2001	19.7 °C	1,216 mm	8
2000	32.1 °C13 October 2000	1.7 °C18 July 2000	19.3 °C	1,521 mm	15
1999	32.2 °C1 October 1999	6.0 °C15 August 1999	19.1 °C	1,489 mm	19
1998	31.3 °C4 February 1998	5.1 °C9 June 1998	19.6 °C	1,534 mm	21
1997	32.8 °C11 November 1997	5.1 °C11 August 1997	19.7 °C	1,560 mm	24
1996	31.9 °C30 January 1996	5.1 °C13 July 1996	19.1 °C	1,655 mm	15
1995	31.9 °C27 February 1995	8.4 °C5 June 1995	19.6 °C	1,651 mm	29
1994	32.9 °C23 September 1994	1.9 °C26 June 1994	20.0 °C	1,423 mm	31
1993	31.7 °C30 November 1993	4.4 °C1 August 1993	19.7 °C	1,425 mm	13
1992	30.3 °C15 November 1992	6.8 °C27 July 1992	19.4 °C	1,532 mm	1
1991	30.6 °C15 October 1991	5.7 °C17 August 1991	19.3 °C	1,598 mm	5
1990	31.7 °C11 October 1990	3.4 °C23 June 1990	19.5 °C	1,358 mm	13
1989	31.1 °C31 January 1989	5.1 °C20 July 1989	18.9 °C	1,500 mm	3
1988	33.6 °C26 September 1988	1.6 °C6 June 1988	19.2 °C	1,563 mm	18
1987	31.5 °C23 February 1987	3.6 °C9 August 1987	19.5 °C	1,415 mm	12
1986	31.6 °C7 October 1986	4.6 °C13 July 1986	19.5 °C	1,500 mm	8
1985	33.0 °C17 November 1985	4.0 °C8 June 1985	19.2 °C	1,335 mm	11
1984	32.6 °C4 February 1984	4.3 °C27 August 1984	19.8 °C	1,091 mm	27
1983	31.2 °C17 February 1983	5.5 °C6 August 1983	19.4 °C	2,223 mm	6
1982	30.8 °C13 February 1982	7.6 °C6 May 1982	19.2 °C	1,737 mm	5
1981	30.9 °C20 September 1981	2.1 °C20 June 1981	18.9 °C	1,443 mm	6
1980	31.1 °C27 October 1980	5.9 °C23 September 1980	19.3 °C	1,286 mm	3
1979	30.7 °C7 December 1979	0.1 °C1 June 1979	18.7 °C	1,402 mm	9
1978	32.0 °C25 January 1978	3.4 °C2 June 1978	19.0 °C	1,376 mm	12
1977	31.5 °C9 February 1977	6.7 °C21 May 1977	19.8 °C	1,587 mm	14
1976	31.7 °C19 January 1976	4.8 °C16 August 1976	18.7 °C	2,039 mm	7
1975	31.4 °C10 September 1975	2.4 °C18 July 1975	19.0 °C	1,461 mm	13
1974	31.7 °C19 November 1974	5.6 °C1 July 1974	18.9 °C	1,496 mm	8
1973	32.3 °C22 February 1973	5.0 °C13 May 1973	19.4 °C	1,379 mm	16
1972	31.4 °C26 October 1972	5.3 °C9 July 1972	19.1 °C	1,685 mm	5
1971	32.3 °C5 February 1971	4.9 °C7 July 1971	18.8 °C	1,202 mm	21
1970	30.8 °C24 December 1970	5.2 °C3 July 1970	19.0 °C	1,130 mm	6
1969	31.8 °C30 January 1969	4.3 °C11 July 1969	19.3 °C	965 mm	10
1968	32.4 °C15 December 1968	3.8 °C18 May 1968	18.1 °C	968 mm	11
1967	30.4 °C2 December 1967	4.7 °C10 June 1967	19.2 °C	1,296 mm	3
1966	31.2 °C14 September 1966	5.8 °C7 August 1966	18.5 °C	1,536 mm	7
1965	30.9 °C5 September 1965	2.6 °C12 July 1965	18.4 °C	1,668 mm	5
1964	29.1 °C1 September 1964	5.4 °C29 July 1964	17.8 °C	1,730 mm	0
1963	34.7 °C17 October 1963	5.4 °C21 June 1963	19.4 °C	1,231 mm	37
1962	29.6 °C8 September 1962	3.9 °C19 July 1962	17.6 °C	1,766 mm	0
1961	35.3 °C28 September 1961	9.0 °C16 June 1961	19.6 °C	1,252 mm	34
1960	33.4 °C25 September 1960	5.2 °C15 July 1960	18.2 °C	1,561 mm	5
1959	30.7 °C30 January 1959	4.4 °C8 June 1959	19.0 °C	1,408 mm	5
1958	31.0 °C16 November 1958	4.2 °C23 June 1958	18.7 °C	1,516 mm	8
1957	31.3 °C19 October 1957	3.3 °C22 July 1957	18.4 °C	1,673 mm	2
1956	30.9 °C1 February 1956	5.8 °C22 July 1956	17.8 °C	1,167 mm	6
1955	33.3 °C1 October 1955	5.1 °C23 May 1955	18.4 °C	1,320 mm	9
1954	32.0 °C19 September 1954	5.9 °C30 August 1954	18.7 °C	1,624 mm	6
1953	30.2 °C21 August 1953	7.2 °C13 July 1953	18.8 °C	1,399 mm	1
1952	31.0 °C30 September 1952	4.7 °C16 July 1952	18.4 °C	1,311 mm	6
1951	30.5 °C19 November 1951	6.9 °C3 June 1951	18.4 °C	1,290 mm	5
1950	30.6 °C17 September 1950	6.4 °C14 July 1950	18.3 °C	1,749 mm	1
1949	29.3 °C13 October 1949	7.2 °C28 August 1949	18.1 °C	1,853 mm	0
1948	32.7 °C27 September 1948	7.1 °C8 July 1948	18.7 °C	1,285 mm	7
1947	30.9 °C8 January 1947	4.5 °C4 August 1947	18.0 °C	1,809 mm	5
1946	28.9 °C6 January 1946	6.1 °C17 June 1946	18.8 °C	1,887 mm	0
1945	29.3 °C28 September 1945	7.1 °C16 July 1945	18.5 °C	2,169 mm	0
1944	32.4 °C7 September 1944	6.8 °C15 July 1944	18.8 °C	1,523 mm	9
1943	28.8 °C17 January 1943	6.6 °C26 July 1943	17.7 °C	1,247 mm	0
1942	33.3 °C6 October 1942	3.3 °C24 June 1942	18.1 °C	1,053 mm	12
1941	29.0 °C7 January 1941	7.5 °C4 September 1941	18.7 °C	2,256 mm	0
1940	30.2 °C23 August 1940	7.9 °C19 August 1940	18.8 °C	1,794 mm	2

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

25.3 °C

+0.9 °C

Hot days (≥ 30 °C)

46 d/yr

+29

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1037 mm

-400 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.4 °C	+1.0 °C	206 mm	-24 mm
Feb	29.3 °C	+2.7 °C	104 mm	-89 mm
Mar	28.1 °C	+2.1 °C	92 mm	-65 mm
Apr	24.5 °C	0.0 °C	129 mm	+52 mm
May	23.6 °C	+1.3 °C	14 mm	-52 mm
Jun	22.0 °C	+0.5 °C	50 mm	+5 mm
Jul	21.0 °C	-0.6 °C	7 mm	-35 mm
Aug	23.9 °C	+0.5 °C	15 mm	-24 mm
Sep	26.1 °C	+1.4 °C	17 mm	-64 mm
Oct	24.8 °C	-0.2 °C	126 mm	-15 mm
Nov	25.6 °C	+0.4 °C	106 mm	-51 mm
Dec	28.0 °C	+2.3 °C	172 mm	-39 mm

The year's extremes

Hottest day

33.3 °C

26 Dec 2025

Coldest day

2.7 °C

25 Jun 2025

Wettest day

38.2 mm

9 Dec 2025

Windiest day

36.9 km/h

10 Dec 2025

Strongest gust

90.4 km/h

22 Sep 2025

Hottest feels-like

37.6 °C

28 Dec 2025

Coldest feels-like

0.0 °C

25 Jun 2025

Sunniest day

13.4 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 Atibaia?

Atibaia has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 19.2 °C and it receives 1,437 mm of precipitation per year.

What is the hottest day ever recorded in Atibaia?

The hottest day measured in Atibaia between 1940 and 2025 was 2 October 2020, reaching 35.5 °C.

What is the coldest day in Atibaia?

The coldest day measured in Atibaia between 1940 and 2025 was 1 June 1979, at 0.1 °C.

Does it snow in Atibaia?

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

Has the climate of Atibaia warmed?

Yes: Atibaia warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Atibaia?

The wettest day measured in Atibaia between 1940 and 2025 was 19 January 1977, with 175 mm of rain in 24 hours.

What was the windiest day in Atibaia?

The windiest day measured in Atibaia between 1940 and 2025 was 8 September 1978, with winds reaching 38.6 km/h.

What is the warmest month in Atibaia?

The warmest month in Atibaia is February (21.9 °C on average); the coldest is July (15.7 °C).

How much does it rain in Atibaia?

Atibaia receives on average 1,437 mm of precipitation per year, spread over about 160 rainy days.

Is it sunny in Atibaia?

Atibaia gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

Are there tropical nights in Atibaia?

Yes: Atibaia has on average 10 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Atibaia?

In Atibaia, between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 20 January 1988, and the lowest was -3.3 °C on 1 June 1979.

Compare Atibaia with another city

Pick a second city: its normals will be set against these, indicator by indicator.

Nearby cities

The climate around Atibaia

Other cities — Brazil

All cities in Brazil →