Guararema climate — normals and trends

Q: What is the climate of Guararema?

Guararema has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.6 °C and it receives 1,500 mm of precipitation per year.

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

The hottest day measured in Guararema between 1940 and 2025 was 28 September 1961, reaching 37.4 °C.

Q: What is the coldest day in Guararema?

The coldest day measured in Guararema between 1940 and 2025 was 27 June 1994, at 2.1 °C.

Q: Does it snow in Guararema?

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

Q: Has the climate of Guararema warmed?

Yes: Guararema warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Guararema?

The wettest day measured in Guararema between 1940 and 2025 was 2 March 1986, with 156 mm of rain in 24 hours.

Q: What was the windiest day in Guararema?

The windiest day measured in Guararema between 1940 and 2025 was 10 December 2025, with winds reaching 38.7 km/h.

Q: What is the warmest month in Guararema?

The warmest month in Guararema is February (22.6 °C on average); the coldest is July (16.1 °C).

Q: How much does it rain in Guararema?

Guararema receives on average 1,500 mm of precipitation per year, spread over about 182 rainy days.

Q: Is it sunny in Guararema?

Guararema gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.

Guararema (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 19.6 °C and it receives 1,500 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 (22.6 °C on average) and the coldest is July (16.1 °C). Rainfall peaks in January.

Guararema averages 0 frost days, 26 hot days (≥ 30 °C) and 182 rainy days per year.

Guararema has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.

The hottest day of the period reached 37.4 °C (on 28 September 1961) and the coldest 2.1 °C (on 27 June 1994).

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

GuararemaSão Paulo

coords: -23.41°, -46.03°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthFebruaryColdest monthJulyWettest monthJanuaryDriest monthAugust

Mean daily temperature

19.6°C

Average daily high

24.5°C

Average daily low

15.9°C

Annual rainfall

1,500mm

Sunshine / day

8.7h

Mean relative humidity

83%

Average peak wind

12.3km/h

Seasonal range

6.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

26 d/yr

Rainy days (≥ 1 mm)

182 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.6 °C

Average feels-like low

16.7 °C

Average peak gust

30.5 km/h

Tropical nights (≥ 20 °C)

34 d/yr

Solar radiation

16.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.59 · 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

37.4 °C

28 September 1961

Coldest day

2.1 °C

27 June 1994

Wettest day

156 mm

2 March 1986

Windiest day

38.7 km/h

10 December 2025

Strongest gust

101.5 km/h

17 December 1947

Hottest feels-like

40.7 °C

17 February 1994

Coldest feels-like

-1.0 °C

21 July 1981

Sunniest day

13.4 h

28 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	34.4 °C6 October 2025	5.0 °C25 June 2025	19.9 °C	1,206 mm	47
2024	35.7 °C2 October 2024	4.7 °C27 August 2024	20.7 °C	1,363 mm	69
2023	35.6 °C13 November 2023	6.8 °C16 May 2023	20.6 °C	1,464 mm	59
2022	33.1 °C27 October 2022	5.9 °C20 May 2022	19.4 °C	1,582 mm	34
2021	33.6 °C29 November 2021	2.4 °C30 July 2021	19.6 °C	1,224 mm	32
2020	36.4 °C2 October 2020	7.2 °C27 May 2020	20.0 °C	1,227 mm	42
2019	34.6 °C12 September 2019	5.8 °C7 July 2019	20.7 °C	1,334 mm	62
2018	32.9 °C14 December 2018	7.3 °C21 May 2018	20.4 °C	1,220 mm	33
2017	33.8 °C11 October 2017	7.1 °C11 June 2017	20.5 °C	1,242 mm	46
2016	33.8 °C31 January 2016	3.0 °C13 June 2016	20.4 °C	1,450 mm	62
2015	35.0 °C18 September 2015	10.0 °C29 June 2015	21.1 °C	1,715 mm	60
2014	34.7 °C19 October 2014	8.5 °C7 August 2014	20.7 °C	1,110 mm	65
2013	34.1 °C11 November 2013	7.0 °C24 July 2013	19.8 °C	1,404 mm	41
2012	34.0 °C19 September 2012	5.6 °C14 July 2012	20.3 °C	1,366 mm	45
2011	32.7 °C28 January 2011	2.7 °C28 June 2011	19.7 °C	1,435 mm	39
2010	33.2 °C16 February 2010	7.1 °C13 June 2010	20.1 °C	1,503 mm	58
2009	33.2 °C19 November 2009	5.4 °C4 June 2009	20.3 °C	1,678 mm	32
2008	32.4 °C15 October 2008	7.8 °C17 July 2008	19.7 °C	1,443 mm	27
2007	34.3 °C21 October 2007	4.6 °C30 July 2007	20.2 °C	1,186 mm	43
2006	33.9 °C25 January 2006	4.3 °C6 September 2006	19.9 °C	1,348 mm	27
2005	34.1 °C14 October 2005	7.7 °C10 July 2005	20.2 °C	1,324 mm	24
2004	32.4 °C22 September 2004	7.6 °C26 July 2004	19.5 °C	1,452 mm	18
2003	33.7 °C11 February 2003	7.3 °C18 August 2003	20.2 °C	1,235 mm	43
2002	33.6 °C16 October 2002	5.9 °C2 September 2002	20.7 °C	1,386 mm	54
2001	32.5 °C8 January 2001	5.6 °C29 July 2001	20.2 °C	1,277 mm	32
2000	32.5 °C23 October 2000	4.3 °C17 July 2000	19.7 °C	1,565 mm	24
1999	32.7 °C18 January 1999	6.8 °C16 August 1999	19.5 °C	1,461 mm	25
1998	33.2 °C4 February 1998	7.6 °C10 June 1998	20.1 °C	1,432 mm	36
1997	33.7 °C9 September 1997	6.1 °C11 August 1997	20.1 °C	1,386 mm	44
1996	33.4 °C27 January 1996	6.2 °C3 August 1996	19.5 °C	1,816 mm	30
1995	33.3 °C16 January 1995	8.9 °C6 June 1995	20.0 °C	1,777 mm	42
1994	32.9 °C17 February 1994	2.1 °C27 June 1994	20.4 °C	1,432 mm	44
1993	32.8 °C16 November 1993	5.5 °C1 August 1993	20.1 °C	1,401 mm	35
1992	31.9 °C22 February 1992	6.5 °C25 August 1992	19.9 °C	1,550 mm	18
1991	32.4 °C15 October 1991	7.2 °C2 August 1991	19.8 °C	1,655 mm	12
1990	32.7 °C11 October 1990	2.6 °C23 June 1990	20.0 °C	1,380 mm	36
1989	31.7 °C21 February 1989	6.5 °C14 August 1989	19.4 °C	1,509 mm	16
1988	33.6 °C19 January 1988	3.0 °C6 June 1988	19.6 °C	1,581 mm	34
1987	32.2 °C7 January 1987	3.7 °C9 August 1987	19.8 °C	1,473 mm	36
1986	32.6 °C7 October 1986	7.1 °C13 July 1986	20.2 °C	1,856 mm	31
1985	31.6 °C20 February 1985	5.2 °C8 June 1985	19.6 °C	1,335 mm	15
1984	34.1 °C5 February 1984	3.7 °C27 August 1984	20.1 °C	1,166 mm	33
1983	32.7 °C17 February 1983	5.2 °C6 August 1983	19.9 °C	2,041 mm	18
1982	31.5 °C3 November 1982	9.0 °C6 May 1982	19.7 °C	1,603 mm	8
1981	32.2 °C4 February 1981	3.3 °C22 July 1981	19.4 °C	1,555 mm	17
1980	32.2 °C27 October 1980	6.4 °C23 September 1980	19.9 °C	1,407 mm	23
1979	32.1 °C7 February 1979	2.8 °C1 June 1979	19.1 °C	1,350 mm	16
1978	33.2 °C24 January 1978	4.2 °C16 August 1978	19.4 °C	1,333 mm	31
1977	32.6 °C9 February 1977	8.8 °C17 May 1977	20.3 °C	1,499 mm	22
1976	33.3 °C19 January 1976	4.8 °C16 August 1976	19.2 °C	2,056 mm	12
1975	32.2 °C10 September 1975	4.5 °C18 July 1975	19.4 °C	1,521 mm	25
1974	33.1 °C19 November 1974	6.6 °C19 August 1974	19.3 °C	1,540 mm	15
1973	33.2 °C10 February 1973	5.5 °C20 June 1973	19.8 °C	1,590 mm	27
1972	32.8 °C26 October 1972	6.3 °C22 June 1972	19.6 °C	1,587 mm	13
1971	32.8 °C22 September 1971	6.9 °C25 April 1971	19.3 °C	1,214 mm	29
1970	31.9 °C28 December 1970	7.1 °C3 July 1970	19.4 °C	1,256 mm	14
1969	32.9 °C5 January 1969	2.7 °C11 July 1969	19.6 °C	1,002 mm	27
1968	34.3 °C15 December 1968	4.7 °C18 May 1968	18.5 °C	1,079 mm	15
1967	31.3 °C2 December 1967	5.6 °C10 June 1967	19.7 °C	1,517 mm	12
1966	31.4 °C19 January 1966	6.5 °C7 August 1966	19.0 °C	1,940 mm	16
1965	31.9 °C10 September 1965	3.3 °C12 July 1965	18.9 °C	1,805 mm	9
1964	30.0 °C1 September 1964	4.9 °C29 July 1964	18.3 °C	1,604 mm	1
1963	34.0 °C14 October 1963	6.7 °C21 June 1963	19.6 °C	1,243 mm	35
1962	31.0 °C8 September 1962	4.7 °C7 July 1962	18.0 °C	1,812 mm	3
1961	37.4 °C28 September 1961	9.7 °C16 June 1961	20.0 °C	1,347 mm	34
1960	33.1 °C25 September 1960	6.4 °C10 July 1960	18.5 °C	1,635 mm	5
1959	32.7 °C11 October 1959	7.9 °C20 June 1959	19.5 °C	1,371 mm	17
1958	32.6 °C16 November 1958	5.9 °C22 June 1958	19.2 °C	1,630 mm	16
1957	31.1 °C18 October 1957	5.1 °C22 July 1957	18.8 °C	1,639 mm	6
1956	32.0 °C9 January 1956	6.4 °C11 August 1956	18.2 °C	1,334 mm	18
1955	31.6 °C1 September 1955	5.4 °C26 May 1955	18.6 °C	1,273 mm	10
1954	32.1 °C18 September 1954	5.8 °C21 June 1954	19.2 °C	1,708 mm	13
1953	31.5 °C21 August 1953	9.1 °C29 July 1953	19.3 °C	1,564 mm	8
1952	32.2 °C30 September 1952	5.9 °C16 July 1952	18.9 °C	1,313 mm	8
1951	32.3 °C23 November 1951	7.2 °C4 June 1951	18.8 °C	1,369 mm	11
1950	32.0 °C17 September 1950	7.4 °C15 July 1950	18.7 °C	1,649 mm	8
1949	30.2 °C17 March 1949	8.8 °C28 August 1949	18.5 °C	2,008 mm	2
1948	34.5 °C27 September 1948	8.5 °C6 June 1948	18.9 °C	1,360 mm	12
1947	32.0 °C8 January 1947	5.7 °C2 September 1947	18.5 °C	1,950 mm	11
1946	30.2 °C6 January 1946	6.3 °C4 June 1946	19.4 °C	2,024 mm	2
1945	30.7 °C28 September 1945	8.3 °C12 July 1945	19.1 °C	2,242 mm	2
1944	33.5 °C7 September 1944	8.4 °C15 July 1944	19.1 °C	1,531 mm	10
1943	30.4 °C24 January 1943	6.0 °C8 August 1943	18.2 °C	1,165 mm	4
1942	35.2 °C6 October 1942	4.5 °C25 June 1942	18.5 °C	1,278 mm	14
1941	30.7 °C11 January 1941	8.4 °C4 September 1941	19.2 °C	2,162 mm	5
1940	31.5 °C12 September 1940	8.6 °C28 August 1940	19.4 °C	1,956 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

25.1 °C

+0.6 °C

Hot days (≥ 30 °C)

47 d/yr

+21

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1206 mm

-294 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.6 °C	+0.6 °C	228 mm	-11 mm
Feb	30.0 °C	+2.7 °C	134 mm	-70 mm
Mar	27.8 °C	+1.4 °C	100 mm	-77 mm
Apr	24.5 °C	-0.2 °C	192 mm	+106 mm
May	23.7 °C	+1.1 °C	30 mm	-41 mm
Jun	21.8 °C	0.0 °C	59 mm	+10 mm
Jul	20.4 °C	-1.2 °C	22 mm	-28 mm
Aug	22.7 °C	-0.3 °C	15 mm	-32 mm
Sep	24.7 °C	+0.7 °C	24 mm	-60 mm
Oct	24.2 °C	-0.4 °C	123 mm	-8 mm
Nov	25.3 °C	+0.2 °C	93 mm	-57 mm
Dec	28.7 °C	+2.7 °C	187 mm	-26 mm

The year's extremes

Hottest day

34.4 °C

6 Oct 2025

Coldest day

5.0 °C

25 Jun 2025

Wettest day

38.7 mm

20 Apr 2025

Windiest day

38.7 km/h

10 Dec 2025

Strongest gust

81.0 km/h

10 Dec 2025

Hottest feels-like

39.9 °C

28 Dec 2025

Coldest feels-like

2.6 °C

25 Jun 2025

Sunniest day

13.4 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 Guararema?

Guararema has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.6 °C and it receives 1,500 mm of precipitation per year.

What is the hottest day ever recorded in Guararema?

The hottest day measured in Guararema between 1940 and 2025 was 28 September 1961, reaching 37.4 °C.

What is the coldest day in Guararema?

The coldest day measured in Guararema between 1940 and 2025 was 27 June 1994, at 2.1 °C.

Does it snow in Guararema?

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

Has the climate of Guararema warmed?

Yes: Guararema warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Guararema?

The wettest day measured in Guararema between 1940 and 2025 was 2 March 1986, with 156 mm of rain in 24 hours.

What was the windiest day in Guararema?

The windiest day measured in Guararema between 1940 and 2025 was 10 December 2025, with winds reaching 38.7 km/h.

What is the warmest month in Guararema?

The warmest month in Guararema is February (22.6 °C on average); the coldest is July (16.1 °C).

How much does it rain in Guararema?

Guararema receives on average 1,500 mm of precipitation per year, spread over about 182 rainy days.

Is it sunny in Guararema?

Guararema gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.

Are there tropical nights in Guararema?

Yes: Guararema has on average 34 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Guararema?

In Guararema, between 1940 and 2025, the highest apparent temperature reached 40.7 °C on 17 February 1994, and the lowest was -1.0 °C on 21 July 1981.

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