Cerro Azul climate — normals and trends

Q: What is the climate of Cerro Azul?

Cerro Azul has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.8 °C and it receives 1,337 mm of precipitation per year.

Q: What is the hottest day ever recorded in Cerro Azul?

The hottest day measured in Cerro Azul between 1940 and 2025 was 6 February 2014, reaching 37.2 °C.

Q: What is the coldest day in Cerro Azul?

The coldest day measured in Cerro Azul between 1940 and 2025 was 18 July 1975, at -4.5 °C.

Q: Does it snow in Cerro Azul?

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

Q: Has the climate of Cerro Azul warmed?

Yes: Cerro Azul warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Cerro Azul?

The wettest day measured in Cerro Azul between 1940 and 2025 was 6 March 2017, with 176 mm of rain in 24 hours.

Q: What was the windiest day in Cerro Azul?

The windiest day measured in Cerro Azul between 1940 and 2025 was 10 December 2025, with winds reaching 31.9 km/h.

Q: What is the warmest month in Cerro Azul?

The warmest month in Cerro Azul is January (22.3 °C on average); the coldest is July (14.5 °C).

Q: How much does it rain in Cerro Azul?

Cerro Azul receives on average 1,337 mm of precipitation per year, spread over about 163 rainy days.

Q: Is it sunny in Cerro Azul?

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

Cerro Azul (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.8 °C and it receives 1,337 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 January (22.3 °C on average) and the coldest is July (14.5 °C). Rainfall peaks in January.

Cerro Azul averages 0 frost days, 36 hot days (≥ 30 °C) and 163 rainy days per year.

Cerro Azul has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The hottest day of the period reached 37.2 °C (on 6 February 2014) and the coldest -4.5 °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

Cerro AzulParaná

coords: -24.82°, -49.26°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJanuaryColdest monthJulyWettest monthJanuaryDriest monthAugust

Mean daily temperature

18.8°C

Average daily high

24.3°C

Average daily low

14.7°C

Annual rainfall

1,337mm

Sunshine / day

8.7h

Mean relative humidity

83%

Average peak wind

10.2km/h

Seasonal range

7.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

36 d/yr

Rainy days (≥ 1 mm)

163 d/yr

Annual snowfall

0.0 cm

Average feels-like high

26.2 °C

Average feels-like low

15.4 °C

Average peak gust

29.2 km/h

Tropical nights (≥ 20 °C)

16 d/yr

Solar radiation

15.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.5 °C

since 1940

+0.2 °C per decade · r² = 0.52 · 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

37.2 °C

6 February 2014

Coldest day

-4.5 °C

18 July 1975

Wettest day

176 mm

6 March 2017

Windiest day

31.9 km/h

10 December 2025

Strongest gust

87.8 km/h

23 October 2012

Hottest feels-like

41.4 °C

8 February 2014

Coldest feels-like

-8.6 °C

18 July 1975

Sunniest day

13.5 h

10 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	34.8 °C26 December 2025	-1.9 °C25 June 2025	18.9 °C	1,312 mm	51	1
2024	36.0 °C8 January 2024	-0.1 °C13 August 2024	20.0 °C	1,391 mm	84	1
2023	36.5 °C12 November 2023	3.8 °C15 July 2023	19.5 °C	1,306 mm	67	0
2022	34.4 °C28 February 2022	1.9 °C13 June 2022	18.6 °C	1,459 mm	40	0
2021	34.4 °C23 November 2021	-2.3 °C30 July 2021	18.9 °C	1,156 mm	49	2
2020	36.3 °C1 October 2020	2.8 °C28 May 2020	19.1 °C	1,133 mm	53	0
2019	37.1 °C1 February 2019	-0.1 °C7 July 2019	20.1 °C	1,092 mm	82	1
2018	34.2 °C14 December 2018	2.0 °C12 July 2018	19.6 °C	1,047 mm	42	0
2017	34.8 °C19 February 2017	0.3 °C19 July 2017	19.6 °C	1,589 mm	57	0
2016	34.5 °C26 January 2016	-0.5 °C13 June 2016	19.2 °C	1,415 mm	65	1
2015	35.5 °C24 September 2015	3.8 °C16 June 2015	20.1 °C	1,634 mm	62	0
2014	37.2 °C6 February 2014	2.3 °C4 June 2014	20.1 °C	1,149 mm	85	0
2013	35.8 °C27 December 2013	-2.8 °C24 July 2013	19.1 °C	1,211 mm	47	1
2012	35.3 °C30 October 2012	3.4 °C14 July 2012	19.7 °C	1,316 mm	86	0
2011	33.8 °C22 December 2011	0.2 °C28 June 2011	18.7 °C	1,397 mm	40	0
2010	34.7 °C5 February 2010	2.5 °C7 June 2010	18.8 °C	1,621 mm	41	0
2009	35.1 °C19 November 2009	-0.4 °C4 June 2009	19.2 °C	1,563 mm	49	1
2008	32.9 °C4 September 2008	-2.1 °C17 June 2008	18.8 °C	1,333 mm	31	1
2007	34.2 °C6 March 2007	0.6 °C27 July 2007	19.7 °C	1,094 mm	65	0
2006	35.0 °C15 January 2006	0.9 °C6 September 2006	19.4 °C	1,078 mm	53	0
2005	35.4 °C11 March 2005	4.4 °C26 July 2005	19.4 °C	1,374 mm	51	0
2004	34.3 °C26 September 2004	-1.5 °C14 June 2004	18.7 °C	1,362 mm	37	1
2003	35.0 °C9 January 2003	1.8 °C11 August 2003	19.1 °C	1,200 mm	57	0
2002	34.6 °C11 October 2002	-0.3 °C3 September 2002	19.9 °C	1,161 mm	73	1
2001	33.9 °C7 November 2001	1.9 °C22 June 2001	19.4 °C	1,302 mm	55	0
2000	34.0 °C23 October 2000	-0.8 °C21 July 2000	18.8 °C	1,342 mm	37	3
1999	33.2 °C21 January 1999	1.7 °C15 August 1999	18.5 °C	1,373 mm	36	0
1998	33.5 °C4 February 1998	3.9 °C10 July 1998	19.1 °C	1,589 mm	50	0
1997	34.0 °C26 December 1997	3.2 °C9 June 1997	19.1 °C	1,842 mm	34	0
1996	32.8 °C26 January 1996	2.4 °C1 August 1996	18.6 °C	1,578 mm	31	0
1995	33.1 °C28 February 1995	5.3 °C22 May 1995	18.9 °C	1,518 mm	48	0
1994	33.6 °C25 September 1994	-0.7 °C10 July 1994	19.2 °C	1,419 mm	50	2
1993	35.2 °C2 January 1993	0.6 °C15 July 1993	18.9 °C	1,496 mm	36	0
1992	33.3 °C14 January 1992	2.0 °C20 July 1992	18.8 °C	1,316 mm	48	0
1991	34.2 °C15 October 1991	-0.7 °C3 August 1991	18.8 °C	1,440 mm	30	1
1990	35.4 °C23 December 1990	-1.5 °C29 July 1990	18.8 °C	1,417 mm	61	2
1989	31.6 °C10 April 1989	1.4 °C6 July 1989	18.3 °C	1,486 mm	18	0
1988	34.9 °C20 January 1988	-0.4 °C6 June 1988	18.6 °C	1,155 mm	58	2
1987	34.5 °C2 December 1987	1.2 °C9 August 1987	18.9 °C	1,411 mm	56	0
1986	34.4 °C17 January 1986	2.9 °C2 June 1986	19.2 °C	1,286 mm	54	0
1985	36.9 °C16 November 1985	0.8 °C11 July 1985	19.1 °C	929 mm	51	0
1984	35.3 °C5 February 1984	0.0 °C27 August 1984	19.2 °C	1,023 mm	59	0
1983	32.9 °C11 March 1983	2.0 °C16 June 1983	18.9 °C	1,926 mm	21	0
1982	32.0 °C3 November 1982	2.3 °C31 July 1982	18.8 °C	1,323 mm	19	0
1981	33.4 °C16 February 1981	-1.6 °C20 June 1981	18.6 °C	1,111 mm	29	2
1980	32.5 °C20 October 1980	-0.2 °C28 June 1980	18.6 °C	1,577 mm	27	1
1979	35.2 °C7 February 1979	-1.9 °C1 June 1979	18.2 °C	1,137 mm	33	1
1978	35.7 °C25 January 1978	-2.0 °C15 August 1978	18.7 °C	1,008 mm	49	2
1977	34.5 °C28 February 1977	3.1 °C18 May 1977	19.6 °C	1,213 mm	62	0
1976	33.2 °C19 January 1976	2.3 °C22 August 1976	18.1 °C	1,609 mm	15	0
1975	35.1 °C17 February 1975	-4.5 °C18 July 1975	18.7 °C	1,116 mm	45	2
1974	34.6 °C19 November 1974	1.8 °C17 August 1974	18.4 °C	1,487 mm	38	0
1973	34.6 °C10 February 1973	1.6 °C20 June 1973	18.9 °C	1,288 mm	44	0
1972	33.5 °C27 October 1972	-0.8 °C9 July 1972	18.7 °C	1,268 mm	26	1
1971	34.7 °C26 January 1971	1.4 °C14 June 1971	18.4 °C	1,277 mm	41	0
1970	33.7 °C8 January 1970	3.7 °C9 August 1970	18.8 °C	1,066 mm	28	0
1969	33.6 °C5 February 1969	-0.1 °C11 July 1969	18.6 °C	1,142 mm	44	1
1968	34.5 °C6 November 1968	0.4 °C17 May 1968	17.8 °C	826 mm	47	0
1967	31.7 °C28 February 1967	-0.9 °C9 June 1967	18.6 °C	1,224 mm	16	1
1966	32.1 °C24 January 1966	0.2 °C7 August 1966	18.0 °C	1,416 mm	20	0
1965	31.2 °C3 September 1965	0.4 °C12 July 1965	18.0 °C	1,314 mm	7	0
1964	30.5 °C31 January 1964	2.8 °C19 June 1964	17.6 °C	1,132 mm	4	0
1963	33.9 °C14 October 1963	0.7 °C22 June 1963	18.6 °C	1,395 mm	30	0
1962	32.0 °C8 September 1962	0.2 °C18 July 1962	17.1 °C	1,158 mm	6	0
1961	34.0 °C27 September 1961	5.8 °C4 August 1961	19.1 °C	1,287 mm	32	0
1960	30.8 °C24 September 1960	1.9 °C25 June 1960	17.8 °C	1,233 mm	6	0
1959	32.4 °C10 September 1959	2.1 °C8 June 1959	18.8 °C	1,084 mm	20	0
1958	34.0 °C8 January 1958	4.0 °C24 June 1958	18.4 °C	1,412 mm	23	0
1957	32.4 °C18 October 1957	1.1 °C22 July 1957	18.1 °C	1,448 mm	9	0
1956	32.1 °C1 February 1956	2.7 °C20 May 1956	17.6 °C	1,283 mm	15	0
1955	32.6 °C2 December 1955	-1.2 °C31 July 1955	17.9 °C	1,403 mm	17	2
1954	31.5 °C18 September 1954	2.4 °C21 June 1954	18.5 °C	1,231 mm	6	0
1953	31.9 °C13 January 1953	5.1 °C11 July 1953	18.7 °C	1,154 mm	13	0
1952	31.5 °C11 December 1952	3.2 °C12 June 1952	18.3 °C	1,053 mm	14	0
1951	31.5 °C25 September 1951	5.7 °C1 June 1951	17.9 °C	1,391 mm	7	0
1950	30.7 °C17 September 1950	1.0 °C12 July 1950	18.0 °C	1,564 mm	9	0
1949	30.9 °C16 March 1949	5.8 °C16 May 1949	17.9 °C	1,635 mm	3	0
1948	32.5 °C26 September 1948	3.7 °C15 June 1948	18.0 °C	1,564 mm	4	0
1947	32.5 °C7 January 1947	3.1 °C8 July 1947	17.7 °C	1,961 mm	6	0
1946	30.6 °C4 November 1946	2.2 °C4 June 1946	18.5 °C	1,907 mm	2	0
1945	30.9 °C28 September 1945	3.2 °C21 June 1945	18.3 °C	1,609 mm	1	0
1944	32.7 °C7 September 1944	4.5 °C15 July 1944	18.6 °C	1,182 mm	14	0
1943	33.3 °C1 January 1943	4.9 °C26 June 1943	18.1 °C	788 mm	35	0
1942	36.6 °C27 November 1942	0.9 °C18 June 1942	18.0 °C	1,043 mm	22	0
1941	31.1 °C6 January 1941	4.0 °C18 July 1941	18.3 °C	1,709 mm	3	0
1940	29.5 °C5 December 1940	4.9 °C19 August 1940	18.6 °C	1,674 mm	0	0

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

24.6 °C

+0.3 °C

Hot days (≥ 30 °C)

51 d/yr

+15

Frost days (< 0 °C)

1 d/yr

Annual rainfall

1312 mm

-25 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.8 °C	+0.2 °C	318 mm	+125 mm
Feb	29.1 °C	+1.7 °C	165 mm	-3 mm
Mar	28.4 °C	+1.8 °C	67 mm	-69 mm
Apr	23.9 °C	-0.7 °C	90 mm	+21 mm
May	22.6 °C	+0.8 °C	54 mm	-20 mm
Jun	20.1 °C	-0.5 °C	102 mm	+32 mm
Jul	19.3 °C	-1.1 °C	36 mm	-28 mm
Aug	21.6 °C	-0.6 °C	27 mm	-30 mm
Sep	24.5 °C	+1.1 °C	38 mm	-61 mm
Oct	23.2 °C	-1.1 °C	158 mm	+29 mm
Nov	25.7 °C	0.0 °C	117 mm	-1 mm
Dec	29.0 °C	+2.2 °C	139 mm	-18 mm

The year's extremes

Hottest day

34.8 °C

26 Dec 2025

Coldest day

-1.9 °C

25 Jun 2025

Wettest day

50.4 mm

17 Jan 2025

Windiest day

31.9 km/h

10 Dec 2025

Strongest gust

76.7 km/h

10 Dec 2025

Hottest feels-like

38.9 °C

27 Dec 2025

Coldest feels-like

-4.5 °C

25 Jun 2025

Sunniest day

13.5 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 Cerro Azul?

Cerro Azul has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.8 °C and it receives 1,337 mm of precipitation per year.

What is the hottest day ever recorded in Cerro Azul?

The hottest day measured in Cerro Azul between 1940 and 2025 was 6 February 2014, reaching 37.2 °C.

What is the coldest day in Cerro Azul?

The coldest day measured in Cerro Azul between 1940 and 2025 was 18 July 1975, at -4.5 °C.

Does it snow in Cerro Azul?

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

Has the climate of Cerro Azul warmed?

Yes: Cerro Azul warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Cerro Azul?

The wettest day measured in Cerro Azul between 1940 and 2025 was 6 March 2017, with 176 mm of rain in 24 hours.

What was the windiest day in Cerro Azul?

The windiest day measured in Cerro Azul between 1940 and 2025 was 10 December 2025, with winds reaching 31.9 km/h.

What is the warmest month in Cerro Azul?

The warmest month in Cerro Azul is January (22.3 °C on average); the coldest is July (14.5 °C).

How much does it rain in Cerro Azul?

Cerro Azul receives on average 1,337 mm of precipitation per year, spread over about 163 rainy days.

Is it sunny in Cerro Azul?

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

Are there tropical nights in Cerro Azul?

Yes: Cerro Azul has on average 16 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Cerro Azul?

In Cerro Azul, between 1940 and 2025, the highest apparent temperature reached 41.4 °C on 8 February 2014, and the lowest was -8.6 °C on 18 July 1975.

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