Porto Belo climate — normals and trends

Q: What is the climate of Porto Belo?

Porto Belo has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.7 °C and it receives 1,371 mm of precipitation per year.

Q: What is the hottest day ever recorded in Porto Belo?

The hottest day measured in Porto Belo between 1940 and 2025 was 26 December 2012, reaching 36.8 °C.

Q: What is the coldest day in Porto Belo?

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

Q: Does it snow in Porto Belo?

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

Q: Has the climate of Porto Belo warmed?

Yes: Porto Belo warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Porto Belo?

The wettest day measured in Porto Belo between 1940 and 2025 was 4 May 2022, with 150 mm of rain in 24 hours.

Q: What was the windiest day in Porto Belo?

The windiest day measured in Porto Belo between 1940 and 2025 was 9 August 2005, with winds reaching 46.8 km/h.

Q: What is the warmest month in Porto Belo?

The warmest month in Porto Belo is February (24.8 °C on average); the coldest is July (16.5 °C).

Q: How much does it rain in Porto Belo?

Porto Belo receives on average 1,371 mm of precipitation per year, spread over about 165 rainy days.

Q: Is it sunny in Porto Belo?

Porto Belo gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Porto Belo (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 20.7 °C and it receives 1,371 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 (24.8 °C on average) and the coldest is July (16.5 °C). Rainfall peaks in January.

Porto Belo averages 0 frost days, 13 hot days (≥ 30 °C) and 165 rainy days per year.

Porto Belo has warmed by +0.8 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.8 °C (on 26 December 2012) 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

Porto BeloSanta Catarina

coords: -27.16°, -48.55°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthFebruaryColdest monthJulyWettest monthJanuaryDriest monthJuly

Mean daily temperature

20.7°C

Average daily high

23.6°C

Average daily low

18.3°C

Annual rainfall

1,371mm

Sunshine / day

9.1h

Mean relative humidity

82%

Average peak wind

17.6km/h

Seasonal range

8.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

13 d/yr

Rainy days (≥ 1 mm)

165 d/yr

Annual snowfall

0.0 cm

Average feels-like high

25.5 °C

Average feels-like low

19.0 °C

Average peak gust

32.9 km/h

Tropical nights (≥ 20 °C)

135 d/yr

Solar radiation

15.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.8 °C

since 1940

+0.1 °C per decade · r² = 0.29 · 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

36.8 °C

26 December 2012

Coldest day

3.8 °C

18 July 1975

Wettest day

150 mm

4 May 2022

Windiest day

46.8 km/h

9 August 2005

Strongest gust

85.7 km/h

11 May 2015

Hottest feels-like

42.9 °C

4 February 2010

Coldest feels-like

0.1 °C

18 July 1975

Sunniest day

13.7 h

14 December 2014

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	34.2 °C17 February 2025	6.0 °C25 June 2025	20.8 °C	1,408 mm	29
2024	33.0 °C13 February 2024	7.0 °C13 August 2024	21.3 °C	1,805 mm	28
2023	31.9 °C29 December 2023	10.6 °C28 August 2023	21.4 °C	1,491 mm	23
2022	32.8 °C12 December 2022	8.2 °C12 June 2022	20.6 °C	1,854 mm	24
2021	31.2 °C4 February 2021	6.1 °C30 July 2021	20.6 °C	1,506 mm	9
2020	32.5 °C7 January 2020	8.0 °C22 August 2020	21.0 °C	1,173 mm	15
2019	35.3 °C30 January 2019	6.6 °C6 July 2019	21.7 °C	1,114 mm	35
2018	33.0 °C12 December 2018	8.4 °C27 August 2018	21.2 °C	1,035 mm	18
2017	32.5 °C10 January 2017	7.3 °C19 July 2017	21.6 °C	1,401 mm	27
2016	33.4 °C26 January 2016	5.8 °C12 June 2016	20.6 °C	1,422 mm	23
2015	34.6 °C12 January 2015	9.2 °C16 June 2015	21.6 °C	1,675 mm	28
2014	34.8 °C9 February 2014	9.2 °C14 August 2014	21.7 °C	1,184 mm	35
2013	33.7 °C30 December 2013	5.6 °C24 July 2013	20.6 °C	1,267 mm	18
2012	36.8 °C26 December 2012	8.4 °C8 June 2012	21.2 °C	1,241 mm	25
2011	33.5 °C20 December 2011	6.3 °C28 June 2011	20.4 °C	1,890 mm	12
2010	33.9 °C4 February 2010	8.4 °C14 July 2010	20.7 °C	1,852 mm	24
2009	32.0 °C2 March 2009	7.1 °C3 June 2009	20.7 °C	1,465 mm	13
2008	31.4 °C11 January 2008	6.5 °C17 June 2008	20.4 °C	2,009 mm	5
2007	32.4 °C31 March 2007	6.9 °C29 July 2007	20.9 °C	1,024 mm	20
2006	33.4 °C6 February 2006	6.5 °C5 September 2006	21.2 °C	1,058 mm	23
2005	31.9 °C11 March 2005	9.1 °C20 July 2005	21.1 °C	1,395 mm	8
2004	30.6 °C4 February 2004	6.6 °C14 June 2004	20.4 °C	1,655 mm	4
2003	32.6 °C6 February 2003	6.9 °C12 July 2003	21.0 °C	1,139 mm	29
2002	32.4 °C26 January 2002	8.6 °C29 July 2002	21.4 °C	1,293 mm	28
2001	33.1 °C28 January 2001	7.4 °C28 July 2001	21.5 °C	1,397 mm	29
2000	31.9 °C27 December 2000	5.1 °C17 July 2000	20.4 °C	1,289 mm	10
1999	32.1 °C31 January 1999	6.4 °C15 August 1999	20.4 °C	1,466 mm	10
1998	33.9 °C28 January 1998	9.7 °C22 June 1998	20.8 °C	1,954 mm	16
1997	32.9 °C19 February 1997	9.2 °C1 July 1997	20.9 °C	1,593 mm	14
1996	31.6 °C12 January 1996	7.8 °C1 August 1996	20.4 °C	1,707 mm	11
1995	33.1 °C19 December 1995	7.9 °C26 June 1995	20.6 °C	1,585 mm	15
1994	35.0 °C14 December 1994	5.9 °C26 June 1994	20.8 °C	1,192 mm	15
1993	31.5 °C8 January 1993	6.9 °C16 July 1993	20.6 °C	1,410 mm	17
1992	32.8 °C22 February 1992	6.8 °C23 July 1992	20.5 °C	1,426 mm	7
1991	31.8 °C23 December 1991	5.0 °C3 August 1991	20.7 °C	1,346 mm	8
1990	31.2 °C11 December 1990	6.1 °C29 July 1990	20.3 °C	1,348 mm	10
1989	32.6 °C23 November 1989	6.6 °C6 July 1989	20.2 °C	1,362 mm	5
1988	33.3 °C19 January 1988	6.8 °C1 June 1988	20.1 °C	977 mm	18
1987	32.7 °C8 January 1987	6.8 °C25 June 1987	20.5 °C	1,360 mm	19
1986	34.0 °C16 December 1986	9.4 °C1 June 1986	21.4 °C	990 mm	15
1985	31.0 °C20 February 1985	8.6 °C11 July 1985	20.9 °C	986 mm	4
1984	33.1 °C16 January 1984	4.3 °C26 August 1984	20.6 °C	1,417 mm	20
1983	32.1 °C10 March 1983	8.5 °C6 August 1983	20.4 °C	2,232 mm	4
1982	31.1 °C12 February 1982	9.1 °C30 July 1982	20.6 °C	1,137 mm	2
1981	31.8 °C4 February 1981	5.3 °C19 June 1981	20.5 °C	1,244 mm	4
1980	31.9 °C23 January 1980	6.9 °C27 June 1980	20.6 °C	1,310 mm	14
1979	31.5 °C14 December 1979	6.4 °C1 June 1979	20.0 °C	1,212 mm	6
1978	35.0 °C2 February 1978	6.9 °C14 August 1978	20.8 °C	959 mm	19
1977	31.7 °C28 February 1977	7.6 °C26 June 1977	21.4 °C	1,409 mm	9
1976	32.2 °C15 December 1976	7.6 °C10 July 1976	20.3 °C	1,422 mm	15
1975	34.4 °C13 February 1975	3.8 °C18 July 1975	20.4 °C	1,277 mm	13
1974	32.4 °C10 January 1974	8.4 °C19 August 1974	20.4 °C	1,212 mm	8
1973	35.2 °C10 February 1973	9.2 °C20 June 1973	20.6 °C	1,464 mm	18
1972	33.4 °C2 January 1972	5.8 °C9 July 1972	20.7 °C	1,278 mm	12
1971	35.1 °C24 January 1971	7.2 °C14 June 1971	20.5 °C	1,267 mm	31
1970	32.2 °C5 February 1970	8.1 °C3 July 1970	20.8 °C	1,036 mm	10
1969	33.8 °C17 February 1969	8.1 °C11 July 1969	20.4 °C	1,290 mm	17
1968	32.8 °C12 February 1968	7.3 °C17 May 1968	20.2 °C	1,005 mm	10
1967	30.4 °C23 February 1967	6.6 °C9 June 1967	20.7 °C	1,074 mm	2
1966	32.2 °C21 January 1966	7.1 °C6 August 1966	20.3 °C	1,567 mm	14
1965	32.0 °C17 January 1965	5.9 °C12 July 1965	20.4 °C	1,206 mm	4
1964	31.1 °C25 December 1964	8.3 °C28 July 1964	19.9 °C	1,262 mm	2
1963	33.1 °C9 January 1963	7.9 °C7 August 1963	20.6 °C	1,456 mm	11
1962	31.4 °C29 November 1962	7.4 °C18 July 1962	19.7 °C	1,245 mm	4
1961	32.6 °C17 January 1961	8.1 °C16 June 1961	21.1 °C	1,180 mm	10
1960	31.0 °C23 December 1960	7.6 °C25 June 1960	20.0 °C	1,250 mm	1
1959	31.1 °C26 January 1959	9.4 °C7 June 1959	20.8 °C	1,050 mm	10
1958	32.9 °C15 February 1958	9.2 °C19 June 1958	20.7 °C	1,578 mm	12
1957	31.7 °C30 December 1957	7.1 °C3 August 1957	20.2 °C	1,605 mm	2
1956	32.3 °C9 January 1956	9.3 °C15 May 1956	19.9 °C	1,185 mm	10
1955	31.2 °C9 February 1955	5.8 °C31 July 1955	19.8 °C	1,201 mm	9
1954	32.3 °C12 January 1954	10.6 °C6 July 1954	20.6 °C	1,451 mm	3
1953	32.5 °C6 January 1953	11.2 °C11 July 1953	20.8 °C	1,216 mm	11
1952	31.4 °C6 February 1952	9.1 °C19 June 1952	20.4 °C	874 mm	8
1951	29.0 °C6 February 1951	11.2 °C9 July 1951	20.0 °C	1,061 mm	0
1950	30.2 °C19 February 1950	6.3 °C12 July 1950	20.1 °C	1,311 mm	2
1949	30.8 °C3 January 1949	7.9 °C16 August 1949	19.9 °C	1,538 mm	6
1948	31.0 °C6 January 1948	9.1 °C9 August 1948	20.2 °C	1,446 mm	1
1947	31.2 °C6 February 1947	8.2 °C14 July 1947	20.0 °C	1,554 mm	6
1946	30.1 °C18 February 1946	9.4 °C27 July 1946	20.6 °C	2,102 mm	1
1945	30.0 °C5 February 1945	10.4 °C10 July 1945	20.8 °C	1,853 mm	1
1944	31.3 °C6 January 1944	8.6 °C28 June 1944	20.7 °C	1,278 mm	3
1943	32.8 °C5 January 1943	9.2 °C25 August 1943	20.4 °C	1,112 mm	14
1942	31.0 °C30 December 1942	6.4 °C18 June 1942	20.3 °C	826 mm	9
1941	32.6 °C6 January 1941	9.2 °C30 June 1941	20.5 °C	1,725 mm	6
1940	31.1 °C30 December 1940	9.6 °C27 August 1940	20.8 °C	1,790 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

23.8 °C

+0.2 °C

Hot days (≥ 30 °C)

29 d/yr

+16

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1408 mm

+37 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.6 °C	+0.1 °C	135 mm	-30 mm
Feb	29.5 °C	+1.9 °C	149 mm	-11 mm
Mar	27.9 °C	+1.2 °C	71 mm	-59 mm
Apr	24.5 °C	-0.2 °C	168 mm	+74 mm
May	23.1 °C	+0.8 °C	71 mm	-23 mm
Jun	19.7 °C	-0.7 °C	124 mm	+39 mm
Jul	19.1 °C	-0.5 °C	26 mm	-55 mm
Aug	19.3 °C	-0.9 °C	81 mm	-5 mm
Sep	21.0 °C	+0.1 °C	122 mm	+2 mm
Oct	22.0 °C	-0.4 °C	182 mm	+49 mm
Nov	23.7 °C	-0.5 °C	111 mm	+5 mm
Dec	27.9 °C	+1.8 °C	169 mm	+51 mm

The year's extremes

Hottest day

34.2 °C

17 Feb 2025

Coldest day

6.0 °C

25 Jun 2025

Wettest day

92.4 mm

9 Dec 2025

Windiest day

45.1 km/h

18 Oct 2025

Strongest gust

79.2 km/h

18 Oct 2025

Hottest feels-like

41.5 °C

17 Feb 2025

Coldest feels-like

1.8 °C

24 Jun 2025

Sunniest day

13.7 h

11 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 Porto Belo?

Porto Belo has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.7 °C and it receives 1,371 mm of precipitation per year.

What is the hottest day ever recorded in Porto Belo?

The hottest day measured in Porto Belo between 1940 and 2025 was 26 December 2012, reaching 36.8 °C.

What is the coldest day in Porto Belo?

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

Does it snow in Porto Belo?

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

Has the climate of Porto Belo warmed?

Yes: Porto Belo warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Porto Belo?

The wettest day measured in Porto Belo between 1940 and 2025 was 4 May 2022, with 150 mm of rain in 24 hours.

What was the windiest day in Porto Belo?

The windiest day measured in Porto Belo between 1940 and 2025 was 9 August 2005, with winds reaching 46.8 km/h.

What is the warmest month in Porto Belo?

The warmest month in Porto Belo is February (24.8 °C on average); the coldest is July (16.5 °C).

How much does it rain in Porto Belo?

Porto Belo receives on average 1,371 mm of precipitation per year, spread over about 165 rainy days.

Is it sunny in Porto Belo?

Porto Belo gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Are there tropical nights in Porto Belo?

Yes: Porto Belo has on average 135 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Porto Belo?

In Porto Belo, between 1940 and 2025, the highest apparent temperature reached 42.9 °C on 4 February 2010, and the lowest was 0.1 °C on 18 July 1975.

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