Guaratuba climate — normals and trends

Q: What is the climate of Guaratuba?

Guaratuba has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.2 °C and it receives 1,819 mm of precipitation per year.

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

The hottest day measured in Guaratuba between 1940 and 2025 was 10 February 1973, reaching 36.2 °C.

Q: What is the coldest day in Guaratuba?

The coldest day measured in Guaratuba between 1940 and 2025 was 18 July 1975, at 3.8 °C.

Q: Does it snow in Guaratuba?

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

Q: Has the climate of Guaratuba warmed?

Yes: Guaratuba warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Guaratuba?

The wettest day measured in Guaratuba between 1940 and 2025 was 16 March 1958, with 205 mm of rain in 24 hours.

Q: What was the windiest day in Guaratuba?

The windiest day measured in Guaratuba between 1940 and 2025 was 10 August 2022, with winds reaching 50.3 km/h.

Q: What is the warmest month in Guaratuba?

The warmest month in Guaratuba is February (25.1 °C on average); the coldest is July (17.3 °C).

Q: How much does it rain in Guaratuba?

Guaratuba receives on average 1,819 mm of precipitation per year, spread over about 197 rainy days.

Q: Is it sunny in Guaratuba?

Guaratuba gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.

Guaratuba (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 21.2 °C and it receives 1,819 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 (25.1 °C on average) and the coldest is July (17.3 °C). Rainfall peaks in January.

Guaratuba averages 0 frost days, 15 hot days (≥ 30 °C) and 197 rainy days per year.

Guaratuba has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.2 °C (on 10 February 1973) and the coldest 3.8 °C (on 18 July 1975).

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

GuaratubaParaná

coords: -25.88°, -48.57°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthFebruaryColdest monthJulyWettest monthJanuaryDriest monthJuly

Mean daily temperature

21.2°C

Average daily high

24.0°C

Average daily low

18.9°C

Annual rainfall

1,819mm

Sunshine / day

8.6h

Mean relative humidity

83%

Average peak wind

15.6km/h

Seasonal range

7.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

15 d/yr

Rainy days (≥ 1 mm)

197 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.5 °C

Average feels-like low

20.3 °C

Average peak gust

29.3 km/h

Tropical nights (≥ 20 °C)

151 d/yr

Solar radiation

14.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.0 °C

since 1940

+0.1 °C per decade · r² = 0.38 · 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

10 February 1973

Coldest day

3.8 °C

18 July 1975

Wettest day

205 mm

16 March 1958

Windiest day

50.3 km/h

10 August 2022

Strongest gust

95.4 km/h

10 August 2022

Hottest feels-like

44.3 °C

10 February 1973

Coldest feels-like

0.1 °C

18 July 1975

Sunniest day

13.6 h

16 December 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	35.1 °C17 February 2025	7.4 °C25 June 2025	21.5 °C	1,732 mm	31
2024	35.4 °C13 February 2024	8.0 °C13 August 2024	22.0 °C	2,370 mm	31
2023	34.9 °C18 November 2023	12.1 °C15 July 2023	22.0 °C	1,896 mm	29
2022	32.9 °C5 February 2022	8.3 °C12 June 2022	21.2 °C	2,178 mm	25
2021	33.7 °C4 February 2021	6.6 °C30 July 2021	21.2 °C	1,997 mm	15
2020	32.3 °C7 January 2020	9.6 °C22 August 2020	21.5 °C	1,475 mm	14
2019	36.1 °C3 January 2019	7.2 °C6 July 2019	22.2 °C	1,736 mm	34
2018	32.7 °C15 January 2018	9.7 °C12 July 2018	21.8 °C	1,467 mm	22
2017	32.9 °C5 January 2017	8.8 °C18 July 2017	22.1 °C	1,632 mm	33
2016	33.6 °C26 January 2016	6.9 °C12 June 2016	21.4 °C	1,723 mm	32
2015	34.1 °C12 January 2015	11.9 °C16 June 2015	22.3 °C	2,374 mm	36
2014	33.4 °C9 February 2014	10.2 °C4 June 2014	22.3 °C	1,638 mm	42
2013	34.0 °C30 December 2013	5.9 °C24 July 2013	21.3 °C	1,770 mm	24
2012	35.8 °C26 December 2012	10.2 °C13 July 2012	21.8 °C	1,604 mm	25
2011	33.0 °C20 December 2011	6.4 °C28 June 2011	21.1 °C	2,128 mm	20
2010	34.1 °C4 February 2010	10.4 °C4 August 2010	21.3 °C	2,094 mm	27
2009	33.4 °C31 January 2009	8.1 °C3 June 2009	21.4 °C	1,792 mm	17
2008	32.3 °C3 March 2008	7.2 °C17 June 2008	21.1 °C	2,179 mm	10
2007	32.4 °C10 November 2007	7.6 °C29 July 2007	21.6 °C	1,553 mm	21
2006	33.0 °C20 December 2006	8.4 °C5 September 2006	21.7 °C	1,583 mm	21
2005	32.0 °C29 August 2005	10.8 °C26 July 2005	21.8 °C	1,704 mm	14
2004	30.8 °C4 February 2004	7.3 °C14 June 2004	21.1 °C	1,742 mm	5
2003	33.3 °C6 February 2003	9.7 °C10 August 2003	21.7 °C	1,485 mm	40
2002	33.8 °C26 November 2002	9.6 °C3 September 2002	22.1 °C	1,696 mm	33
2001	32.9 °C28 January 2001	8.9 °C28 July 2001	22.1 °C	1,873 mm	35
2000	33.1 °C4 February 2000	5.4 °C17 July 2000	21.1 °C	1,510 mm	16
1999	32.4 °C7 February 1999	7.2 °C15 August 1999	21.0 °C	1,933 mm	23
1998	34.0 °C28 January 1998	10.6 °C26 June 1998	21.5 °C	2,328 mm	28
1997	34.3 °C23 December 1997	10.0 °C8 June 1997	21.6 °C	2,306 mm	24
1996	32.9 °C12 January 1996	8.7 °C22 July 1996	21.0 °C	1,954 mm	19
1995	33.4 °C19 December 1995	11.0 °C26 June 1995	21.3 °C	2,503 mm	27
1994	32.8 °C4 December 1994	5.3 °C26 June 1994	21.5 °C	1,622 mm	19
1993	32.3 °C8 January 1993	7.3 °C1 August 1993	21.3 °C	1,825 mm	21
1992	33.7 °C22 February 1992	9.3 °C3 August 1992	21.1 °C	1,872 mm	8
1991	33.2 °C25 November 1991	6.8 °C3 August 1991	21.3 °C	1,710 mm	13
1990	31.8 °C11 December 1990	6.7 °C29 July 1990	21.0 °C	1,725 mm	15
1989	32.6 °C21 February 1989	7.0 °C6 July 1989	20.9 °C	1,866 mm	11
1988	33.5 °C19 January 1988	7.3 °C1 June 1988	20.6 °C	1,389 mm	16
1987	32.9 °C8 January 1987	7.8 °C25 June 1987	21.1 °C	1,849 mm	23
1986	34.9 °C18 January 1986	10.2 °C1 June 1986	21.9 °C	1,521 mm	24
1985	32.0 °C27 August 1985	8.5 °C11 July 1985	21.5 °C	1,205 mm	8
1984	33.3 °C13 January 1984	5.3 °C26 August 1984	21.2 °C	1,777 mm	24
1983	33.2 °C11 March 1983	9.4 °C5 August 1983	21.0 °C	2,493 mm	13
1982	32.5 °C3 November 1982	9.4 °C31 July 1982	21.2 °C	1,813 mm	7
1981	31.7 °C4 February 1981	6.5 °C19 June 1981	21.0 °C	1,744 mm	6
1980	33.5 °C18 December 1980	7.0 °C28 June 1980	21.3 °C	1,723 mm	18
1979	31.8 °C14 December 1979	7.2 °C1 June 1979	20.6 °C	1,523 mm	4
1978	34.9 °C2 February 1978	7.3 °C15 August 1978	21.3 °C	1,313 mm	21
1977	32.4 °C5 December 1977	9.1 °C26 June 1977	22.0 °C	1,557 mm	15
1976	32.6 °C20 January 1976	8.8 °C22 August 1976	20.8 °C	1,894 mm	14
1975	34.2 °C15 February 1975	3.8 °C18 July 1975	20.9 °C	1,533 mm	14
1974	31.9 °C10 January 1974	8.3 °C17 August 1974	21.0 °C	1,716 mm	10
1973	36.2 °C10 February 1973	10.1 °C20 June 1973	21.2 °C	1,788 mm	28
1972	33.6 °C4 January 1972	7.3 °C9 July 1972	21.2 °C	1,706 mm	16
1971	33.7 °C24 January 1971	9.0 °C14 June 1971	20.9 °C	1,450 mm	22
1970	32.4 °C8 February 1970	10.4 °C3 July 1970	21.3 °C	1,423 mm	9
1969	34.1 °C1 January 1969	7.1 °C11 July 1969	20.9 °C	1,790 mm	11
1968	34.4 °C12 February 1968	7.6 °C17 May 1968	20.6 °C	1,248 mm	13
1967	30.9 °C18 January 1967	6.9 °C9 June 1967	21.2 °C	1,599 mm	5
1966	32.4 °C21 January 1966	7.9 °C6 August 1966	20.8 °C	2,259 mm	13
1965	31.7 °C19 December 1965	7.3 °C12 July 1965	20.9 °C	1,572 mm	4
1964	30.5 °C25 December 1964	8.7 °C28 July 1964	20.3 °C	1,708 mm	1
1963	32.6 °C9 January 1963	8.2 °C6 August 1963	21.2 °C	1,996 mm	8
1962	30.9 °C29 November 1962	8.0 °C18 July 1962	20.1 °C	1,625 mm	2
1961	33.9 °C17 January 1961	9.8 °C16 June 1961	21.5 °C	1,833 mm	8
1960	30.9 °C24 October 1960	8.5 °C25 June 1960	20.5 °C	1,905 mm	2
1959	31.8 °C16 April 1959	10.2 °C7 June 1959	21.4 °C	1,201 mm	10
1958	34.3 °C16 February 1958	11.7 °C24 June 1958	21.2 °C	2,452 mm	10
1957	31.1 °C30 December 1957	7.9 °C21 July 1957	20.7 °C	2,343 mm	4
1956	33.2 °C7 January 1956	10.1 °C18 May 1956	20.4 °C	1,840 mm	13
1955	30.6 °C1 February 1955	6.1 °C31 July 1955	20.3 °C	1,937 mm	4
1954	33.5 °C12 January 1954	10.5 °C6 July 1954	21.1 °C	1,867 mm	7
1953	32.6 °C6 January 1953	11.7 °C13 July 1953	21.3 °C	1,934 mm	7
1952	30.9 °C27 December 1952	9.8 °C19 June 1952	20.9 °C	1,312 mm	5
1951	30.3 °C6 January 1951	12.9 °C9 July 1951	20.5 °C	1,512 mm	2
1950	30.8 °C19 February 1950	7.9 °C12 July 1950	20.6 °C	1,712 mm	3
1949	31.7 °C30 January 1949	9.9 °C16 August 1949	20.6 °C	2,000 mm	7
1948	32.5 °C6 January 1948	11.1 °C4 August 1948	20.8 °C	1,816 mm	6
1947	32.0 °C9 February 1947	10.1 °C7 July 1947	20.5 °C	2,491 mm	8
1946	30.9 °C18 February 1946	9.9 °C3 June 1946	21.2 °C	2,457 mm	1
1945	30.6 °C5 February 1945	11.7 °C21 June 1945	21.3 °C	2,198 mm	1
1944	32.0 °C7 January 1944	11.8 °C12 July 1944	21.3 °C	1,806 mm	2
1943	31.7 °C30 January 1943	10.4 °C6 August 1943	20.7 °C	1,592 mm	10
1942	31.8 °C17 January 1942	7.6 °C19 June 1942	20.7 °C	1,523 mm	2
1941	32.9 °C6 January 1941	11.1 °C28 June 1941	21.1 °C	2,439 mm	7
1940	31.8 °C15 January 1940	11.5 °C19 August 1940	21.4 °C	2,423 mm	4

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

24.3 °C

+0.3 °C

Hot days (≥ 30 °C)

31 d/yr

+16

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1732 mm

-87 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.9 °C	+0.3 °C	283 mm	+27 mm
Feb	29.9 °C	+2.1 °C	208 mm	-35 mm
Mar	28.1 °C	+1.2 °C	121 mm	-99 mm
Apr	24.8 °C	-0.2 °C	89 mm	-35 mm
May	23.7 °C	+0.9 °C	87 mm	-26 mm
Jun	20.6 °C	-0.5 °C	125 mm	+34 mm
Jul	19.8 °C	-0.5 °C	29 mm	-53 mm
Aug	20.1 °C	-0.7 °C	79 mm	-6 mm
Sep	21.8 °C	+0.3 °C	79 mm	-43 mm
Oct	22.6 °C	-0.3 °C	197 mm	+42 mm
Nov	24.3 °C	-0.3 °C	280 mm	+138 mm
Dec	28.4 °C	+2.1 °C	157 mm	-30 mm

The year's extremes

Hottest day

35.1 °C

17 Feb 2025

Coldest day

7.4 °C

25 Jun 2025

Wettest day

117.8 mm

24 Nov 2025

Windiest day

41.4 km/h

8 Nov 2025

Strongest gust

71.6 km/h

8 Nov 2025

Hottest feels-like

42.6 °C

17 Feb 2025

Coldest feels-like

5.2 °C

25 Jun 2025

Sunniest day

13.6 h

10 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 Guaratuba?

Guaratuba has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.2 °C and it receives 1,819 mm of precipitation per year.

What is the hottest day ever recorded in Guaratuba?

The hottest day measured in Guaratuba between 1940 and 2025 was 10 February 1973, reaching 36.2 °C.

What is the coldest day in Guaratuba?

The coldest day measured in Guaratuba between 1940 and 2025 was 18 July 1975, at 3.8 °C.

Does it snow in Guaratuba?

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

Has the climate of Guaratuba warmed?

Yes: Guaratuba warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Guaratuba?

The wettest day measured in Guaratuba between 1940 and 2025 was 16 March 1958, with 205 mm of rain in 24 hours.

What was the windiest day in Guaratuba?

The windiest day measured in Guaratuba between 1940 and 2025 was 10 August 2022, with winds reaching 50.3 km/h.

What is the warmest month in Guaratuba?

The warmest month in Guaratuba is February (25.1 °C on average); the coldest is July (17.3 °C).

How much does it rain in Guaratuba?

Guaratuba receives on average 1,819 mm of precipitation per year, spread over about 197 rainy days.

Is it sunny in Guaratuba?

Guaratuba gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.

Are there tropical nights in Guaratuba?

Yes: Guaratuba has on average 151 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Guaratuba?

In Guaratuba, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 10 February 1973, and the lowest was 0.1 °C on 18 July 1975.

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