Castelo climate — normals and trends

Q: What is the climate of Castelo?

Castelo has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.7 °C and it receives 1,294 mm of precipitation per year.

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

The hottest day measured in Castelo between 1940 and 2025 was 13 November 2023, reaching 36.7 °C.

Q: What is the coldest day in Castelo?

The coldest day measured in Castelo between 1940 and 2025 was 1 June 1979, at 6.3 °C.

Q: Does it snow in Castelo?

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

Q: Has the climate of Castelo warmed?

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

Q: What is the wettest day in Castelo?

The wettest day measured in Castelo between 1940 and 2025 was 26 November 1981, with 170 mm of rain in 24 hours.

Q: What was the windiest day in Castelo?

The windiest day measured in Castelo between 1940 and 2025 was 28 December 1941, with winds reaching 25.1 km/h.

Q: What is the warmest month in Castelo?

The warmest month in Castelo is February (23.5 °C on average); the coldest is July (17.5 °C).

Q: How much does it rain in Castelo?

Castelo receives on average 1,294 mm of precipitation per year, spread over about 154 rainy days.

Q: Is it sunny in Castelo?

Castelo gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.

Castelo (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 20.7 °C and it receives 1,294 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 (23.5 °C on average) and the coldest is July (17.5 °C). Rainfall peaks in December.

Castelo averages 0 frost days, 33 hot days (≥ 30 °C) and 154 rainy days per year.

Castelo 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 36.7 °C (on 13 November 2023) and the coldest 6.3 °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

CasteloEspírito Santo

coords: -20.60°, -41.18°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthFebruaryColdest monthJulyWettest monthDecemberDriest monthJune

Mean daily temperature

20.7°C

Average daily high

25.4°C

Average daily low

16.8°C

Annual rainfall

1,294mm

Sunshine / day

9.5h

Mean relative humidity

79%

Average peak wind

9.9km/h

Seasonal range

6.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

33 d/yr

Rainy days (≥ 1 mm)

154 d/yr

Annual snowfall

0.0 cm

Average feels-like high

27.7 °C

Average feels-like low

17.9 °C

Average peak gust

28.9 km/h

Tropical nights (≥ 20 °C)

46 d/yr

Solar radiation

16.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.9 °C

since 1940

+0.2 °C per decade · r² = 0.61 · 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

36.7 °C

13 November 2023

Coldest day

6.3 °C

1 June 1979

Wettest day

170 mm

26 November 1981

Windiest day

25.1 km/h

28 December 1941

Strongest gust

78.8 km/h

23 December 1986

Hottest feels-like

41.6 °C

13 November 2023

Coldest feels-like

4.4 °C

19 May 2022

Sunniest day

13.1 h

6 January 1948

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	35.2 °C18 February 2025	8.2 °C28 September 2025	21.2 °C	971 mm	70
2024	33.7 °C26 October 2024	9.7 °C14 August 2024	22.3 °C	1,340 mm	105
2023	36.7 °C13 November 2023	10.1 °C4 June 2023	21.9 °C	870 mm	99
2022	32.4 °C18 March 2022	7.0 °C19 May 2022	21.1 °C	1,301 mm	66
2021	34.7 °C21 September 2021	7.9 °C31 July 2021	20.8 °C	1,185 mm	48
2020	35.2 °C3 October 2020	8.8 °C28 May 2020	21.0 °C	1,250 mm	62
2019	35.6 °C5 November 2019	8.2 °C9 July 2019	22.0 °C	885 mm	102
2018	33.4 °C19 January 2018	10.2 °C22 May 2018	21.4 °C	1,178 mm	52
2017	33.8 °C26 January 2017	8.5 °C4 July 2017	21.3 °C	691 mm	85
2016	34.4 °C1 January 2016	6.3 °C15 June 2016	21.9 °C	1,071 mm	106
2015	35.7 °C16 October 2015	10.3 °C5 August 2015	22.4 °C	787 mm	131
2014	35.2 °C29 December 2014	6.5 °C7 August 2014	21.3 °C	835 mm	61
2013	32.7 °C12 November 2013	9.4 °C11 July 2013	20.8 °C	1,509 mm	46
2012	35.5 °C31 October 2012	7.6 °C10 July 2012	21.2 °C	883 mm	62
2011	32.8 °C23 February 2011	6.7 °C4 September 2011	20.6 °C	1,137 mm	43
2010	33.7 °C17 February 2010	8.2 °C15 June 2010	21.3 °C	1,051 mm	85
2009	34.2 °C14 March 2009	10.6 °C22 June 2009	21.5 °C	1,668 mm	61
2008	33.3 °C27 October 2008	9.6 °C8 July 2008	20.8 °C	1,631 mm	40
2007	34.5 °C24 September 2007	7.5 °C30 July 2007	21.4 °C	1,097 mm	62
2006	35.4 °C26 January 2006	10.9 °C9 September 2006	21.0 °C	1,302 mm	51
2005	33.3 °C18 October 2005	10.6 °C12 July 2005	21.2 °C	1,462 mm	47
2004	31.8 °C29 September 2004	9.0 °C11 August 2004	20.7 °C	1,483 mm	22
2003	34.4 °C3 March 2003	9.6 °C17 October 2003	21.3 °C	1,247 mm	70
2002	34.0 °C2 December 2002	12.2 °C31 July 2002	21.8 °C	1,109 mm	50
2001	33.7 °C3 February 2001	10.2 °C31 July 2001	21.1 °C	1,159 mm	38
2000	31.8 °C15 January 2000	7.1 °C29 July 2000	20.5 °C	1,151 mm	21
1999	34.4 °C11 February 1999	8.4 °C25 September 1999	20.4 °C	1,098 mm	40
1998	34.2 °C11 February 1998	8.7 °C7 June 1998	21.2 °C	1,023 mm	59
1997	33.5 °C10 September 1997	8.0 °C10 August 1997	21.1 °C	1,143 mm	48
1996	33.6 °C31 January 1996	8.4 °C25 July 1996	20.7 °C	1,324 mm	59
1995	33.8 °C17 January 1995	10.1 °C6 June 1995	21.3 °C	1,300 mm	57
1994	33.3 °C17 February 1994	8.4 °C8 August 1994	21.1 °C	1,467 mm	51
1993	33.5 °C8 March 1993	9.0 °C16 August 1993	21.3 °C	989 mm	53
1992	30.8 °C22 February 1992	8.4 °C28 July 1992	20.6 °C	1,454 mm	8
1991	32.5 °C10 August 1991	9.7 °C6 September 1991	20.6 °C	1,489 mm	17
1990	33.1 °C23 January 1990	8.7 °C13 June 1990	21.2 °C	971 mm	39
1989	32.0 °C21 February 1989	8.4 °C11 July 1989	20.7 °C	1,127 mm	30
1988	33.3 °C30 January 1988	6.6 °C28 July 1988	20.6 °C	1,172 mm	23
1987	32.8 °C17 January 1987	9.0 °C24 August 1987	21.1 °C	1,450 mm	24
1986	31.7 °C15 April 1986	8.8 °C13 July 1986	21.0 °C	844 mm	33
1985	31.7 °C4 February 1985	8.2 °C14 June 1985	20.4 °C	1,393 mm	10
1984	32.8 °C14 January 1984	9.8 °C1 August 1984	21.2 °C	1,272 mm	32
1983	31.4 °C12 March 1983	7.9 °C6 August 1983	21.0 °C	1,569 mm	15
1982	32.0 °C29 November 1982	9.4 °C9 September 1982	20.5 °C	1,278 mm	13
1981	32.7 °C24 December 1981	9.5 °C6 July 1981	20.3 °C	1,549 mm	6
1980	31.6 °C30 October 1980	9.8 °C8 July 1980	20.6 °C	1,229 mm	7
1979	32.6 °C16 December 1979	6.3 °C1 June 1979	20.0 °C	1,837 mm	3
1978	31.7 °C7 December 1978	9.1 °C16 June 1978	20.3 °C	1,472 mm	5
1977	31.9 °C5 December 1977	9.3 °C21 May 1977	20.8 °C	1,372 mm	21
1976	32.4 °C12 January 1976	11.2 °C18 July 1976	20.6 °C	1,223 mm	20
1975	31.1 °C14 February 1975	8.0 °C8 July 1975	20.2 °C	1,360 mm	13
1974	31.7 °C11 January 1974	9.2 °C16 June 1974	20.4 °C	1,142 mm	12
1973	33.9 °C5 January 1973	9.8 °C17 May 1973	21.1 °C	1,562 mm	31
1972	32.6 °C5 January 1972	9.9 °C6 May 1972	20.9 °C	1,066 mm	16
1971	32.0 °C31 January 1971	8.8 °C19 July 1971	20.4 °C	1,569 mm	26
1970	31.8 °C22 March 1970	8.5 °C13 August 1970	20.3 °C	1,020 mm	18
1969	33.1 °C6 October 1969	9.9 °C8 June 1969	20.6 °C	1,119 mm	32
1968	32.6 °C3 November 1968	9.6 °C29 June 1968	19.2 °C	1,253 mm	11
1967	31.4 °C15 January 1967	9.1 °C22 July 1967	20.4 °C	1,616 mm	12
1966	31.8 °C5 December 1966	10.0 °C28 August 1966	20.1 °C	1,214 mm	4
1965	30.7 °C3 March 1965	8.7 °C13 July 1965	20.0 °C	1,498 mm	5
1964	30.1 °C19 February 1964	8.0 °C29 July 1964	19.2 °C	2,030 mm	2
1963	36.1 °C15 October 1963	9.3 °C9 August 1963	20.9 °C	746 mm	46
1962	30.1 °C18 February 1962	7.8 °C18 June 1962	19.4 °C	1,782 mm	1
1961	35.1 °C29 September 1961	10.8 °C7 August 1961	20.6 °C	1,541 mm	29
1960	33.1 °C26 September 1960	9.2 °C1 July 1960	19.7 °C	1,644 mm	8
1959	33.4 °C25 February 1959	9.6 °C12 June 1959	20.5 °C	1,329 mm	29
1958	33.2 °C19 December 1958	8.7 °C22 September 1958	20.2 °C	1,039 mm	25
1957	31.3 °C26 October 1957	8.5 °C22 July 1957	20.1 °C	1,343 mm	11
1956	32.9 °C28 January 1956	8.9 °C17 August 1956	19.4 °C	1,239 mm	18
1955	32.8 °C1 October 1955	10.4 °C4 August 1955	20.0 °C	1,091 mm	21
1954	33.2 °C23 September 1954	8.7 °C12 August 1954	20.5 °C	1,239 mm	13
1953	32.4 °C31 January 1953	9.5 °C2 August 1953	20.2 °C	1,325 mm	5
1952	30.9 °C2 October 1952	10.3 °C11 August 1952	20.0 °C	2,015 mm	1
1951	33.9 °C25 November 1951	7.8 °C14 August 1951	19.8 °C	1,058 mm	24
1950	31.4 °C13 January 1950	8.3 °C14 July 1950	19.8 °C	1,514 mm	7
1949	30.6 °C6 October 1949	10.2 °C29 June 1949	19.7 °C	1,695 mm	2
1948	31.4 °C5 October 1948	8.9 °C31 August 1948	20.0 °C	1,368 mm	24
1947	34.2 °C10 January 1947	8.8 °C19 August 1947	19.9 °C	1,189 mm	37
1946	32.3 °C3 November 1946	9.8 °C27 July 1946	20.7 °C	980 mm	12
1945	32.3 °C29 November 1945	10.9 °C14 July 1945	20.3 °C	1,433 mm	3
1944	31.1 °C7 October 1944	8.4 °C22 August 1944	19.8 °C	1,467 mm	4
1943	28.1 °C19 January 1943	9.2 °C5 September 1943	18.8 °C	2,103 mm	0
1942	32.1 °C7 October 1942	7.7 °C22 August 1942	19.2 °C	1,366 mm	3
1941	30.7 °C13 January 1941	9.7 °C12 July 1941	20.2 °C	1,476 mm	2
1940	30.9 °C24 August 1940	10.5 °C27 September 1940	20.3 °C	1,527 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

26.5 °C

+1.1 °C

Hot days (≥ 30 °C)

70 d/yr

+37

Frost days (< 0 °C)

0 d/yr

Annual rainfall

971 mm

-323 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.4 °C	+0.4 °C	234 mm	+61 mm
Feb	32.0 °C	+3.6 °C	14 mm	-109 mm
Mar	29.0 °C	+1.6 °C	137 mm	-21 mm
Apr	25.7 °C	+0.2 °C	111 mm	+15 mm
May	24.2 °C	+0.4 °C	34 mm	-13 mm
Jun	24.7 °C	+1.6 °C	17 mm	-11 mm
Jul	23.3 °C	+0.6 °C	15 mm	-13 mm
Aug	25.3 °C	+1.6 °C	35 mm	+4 mm
Sep	24.7 °C	-0.1 °C	54 mm	-6 mm
Oct	25.5 °C	+0.1 °C	128 mm	-7 mm
Nov	26.8 °C	+1.3 °C	70 mm	-132 mm
Dec	29.3 °C	+2.6 °C	122 mm	-92 mm

The year's extremes

Hottest day

35.2 °C

18 Feb 2025

Coldest day

8.2 °C

28 Sep 2025

Wettest day

76.0 mm

8 Jan 2025

Windiest day

23.8 km/h

10 Dec 2025

Strongest gust

61.2 km/h

10 Dec 2025

Hottest feels-like

39.0 °C

21 Jan 2025

Coldest feels-like

7.0 °C

28 Sep 2025

Sunniest day

13.0 h

14 Nov 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 Castelo?

Castelo has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.7 °C and it receives 1,294 mm of precipitation per year.

What is the hottest day ever recorded in Castelo?

The hottest day measured in Castelo between 1940 and 2025 was 13 November 2023, reaching 36.7 °C.

What is the coldest day in Castelo?

The coldest day measured in Castelo between 1940 and 2025 was 1 June 1979, at 6.3 °C.

Does it snow in Castelo?

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

Has the climate of Castelo warmed?

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

What is the wettest day in Castelo?

The wettest day measured in Castelo between 1940 and 2025 was 26 November 1981, with 170 mm of rain in 24 hours.

What was the windiest day in Castelo?

The windiest day measured in Castelo between 1940 and 2025 was 28 December 1941, with winds reaching 25.1 km/h.

What is the warmest month in Castelo?

The warmest month in Castelo is February (23.5 °C on average); the coldest is July (17.5 °C).

How much does it rain in Castelo?

Castelo receives on average 1,294 mm of precipitation per year, spread over about 154 rainy days.

Is it sunny in Castelo?

Castelo gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.

Are there tropical nights in Castelo?

Yes: Castelo has on average 46 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Castelo?

In Castelo, between 1940 and 2025, the highest apparent temperature reached 41.6 °C on 13 November 2023, and the lowest was 4.4 °C on 19 May 2022.

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