Osório climate — normals and trends

Q: What is the climate of Osório?

Osório has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.3 °C and it receives 1,338 mm of precipitation per year.

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

The hottest day measured in Osório between 1940 and 2025 was 7 February 2014, reaching 36.8 °C.

Q: What is the coldest day in Osório?

The coldest day measured in Osório between 1940 and 2025 was 18 July 2000, at 2.0 °C.

Q: Does it snow in Osório?

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

Q: Has the climate of Osório warmed?

Yes: Osório warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Osório?

The wettest day measured in Osório between 1940 and 2025 was 31 January 2016, with 146 mm of rain in 24 hours.

Q: What was the windiest day in Osório?

The windiest day measured in Osório between 1940 and 2025 was 1 July 2020, with winds reaching 61.6 km/h.

Q: What is the warmest month in Osório?

The warmest month in Osório is February (23.9 °C on average); the coldest is July (14.6 °C).

Q: How much does it rain in Osório?

Osório receives on average 1,338 mm of precipitation per year, spread over about 138 rainy days.

Q: Is it sunny in Osório?

Osório gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.

Osório (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 19.3 °C and it receives 1,338 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 (23.9 °C on average) and the coldest is July (14.6 °C). Rainfall peaks in September.

Osório averages 0 frost days, 13 hot days (≥ 30 °C) and 138 rainy days per year.

Osório has warmed by +0.7 °C between 1940 and 2025, or +0.08 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.8 °C (on 7 February 2014) and the coldest 2.0 °C (on 18 July 2000).

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

OsórioRio Grande do Sul

coords: -29.89°, -50.27°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthFebruaryColdest monthJulyWettest monthSeptemberDriest monthApril

Mean daily temperature

19.3°C

Average daily high

22.6°C

Average daily low

16.6°C

Annual rainfall

1,338mm

Sunshine / day

9.2h

Mean relative humidity

82%

Average peak wind

20.7km/h

Seasonal range

9.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

13 d/yr

Rainy days (≥ 1 mm)

138 d/yr

Annual snowfall

0.0 cm

Average feels-like high

23.8 °C

Average feels-like low

16.3 °C

Average peak gust

38.7 km/h

Tropical nights (≥ 20 °C)

91 d/yr

Solar radiation

16.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.7 °C

since 1940

+0.1 °C per decade · r² = 0.20 · 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

7 February 2014

Coldest day

2.0 °C

18 July 2000

Wettest day

146 mm

31 January 2016

Windiest day

61.6 km/h

1 July 2020

Strongest gust

112.3 km/h

1 July 2020

Hottest feels-like

44.0 °C

6 February 2014

Coldest feels-like

-3.2 °C

30 July 1955

Sunniest day

13.7 h

11 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	34.9 °C11 February 2025	4.1 °C1 July 2025	19.6 °C	1,473 mm	28
2024	34.3 °C4 February 2024	4.8 °C1 July 2024	19.9 °C	1,740 mm	24
2023	33.5 °C13 February 2023	5.8 °C28 August 2023	20.1 °C	1,795 mm	32
2022	35.4 °C26 January 2022	5.8 °C11 June 2022	19.2 °C	1,270 mm	27
2021	32.1 °C19 August 2021	4.8 °C29 July 2021	19.4 °C	1,016 mm	11
2020	32.5 °C11 December 2020	4.5 °C15 July 2020	19.5 °C	1,274 mm	18
2019	36.3 °C30 January 2019	5.1 °C7 July 2019	20.4 °C	1,174 mm	41
2018	32.3 °C17 December 2018	5.7 °C16 June 2018	19.8 °C	1,188 mm	17
2017	32.9 °C17 February 2017	3.9 °C19 July 2017	20.5 °C	1,373 mm	22
2016	34.6 °C25 January 2016	3.2 °C13 June 2016	19.2 °C	1,289 mm	22
2015	31.4 °C9 January 2015	6.6 °C13 September 2015	20.2 °C	1,878 mm	14
2014	36.8 °C7 February 2014	4.5 °C14 August 2014	20.2 °C	1,396 mm	33
2013	33.4 °C27 December 2013	5.1 °C24 July 2013	19.1 °C	1,400 mm	12
2012	35.1 °C25 December 2012	2.5 °C8 June 2012	19.9 °C	1,172 mm	21
2011	31.9 °C27 January 2011	3.3 °C7 July 2011	19.1 °C	1,393 mm	13
2010	36.2 °C4 February 2010	4.9 °C15 July 2010	19.5 °C	1,622 mm	20
2009	32.0 °C29 December 2009	2.5 °C25 July 2009	19.2 °C	1,333 mm	13
2008	30.8 °C16 January 2008	4.8 °C4 August 2008	19.0 °C	1,422 mm	4
2007	32.5 °C1 March 2007	3.4 °C12 July 2007	19.3 °C	1,631 mm	15
2006	33.7 °C10 January 2006	4.8 °C22 August 2006	19.6 °C	1,145 mm	27
2005	32.6 °C9 January 2005	7.4 °C6 July 2005	19.9 °C	1,243 mm	20
2004	31.7 °C7 March 2004	4.5 °C11 July 2004	19.2 °C	1,030 mm	6
2003	34.2 °C5 February 2003	5.1 °C12 July 2003	19.6 °C	1,302 mm	19
2002	33.9 °C17 March 2002	6.4 °C26 June 2002	20.0 °C	1,527 mm	18
2001	32.6 °C10 February 2001	5.6 °C22 June 2001	20.1 °C	1,379 mm	21
2000	32.4 °C27 December 2000	2.0 °C18 July 2000	18.9 °C	1,449 mm	15
1999	31.9 °C27 December 1999	6.2 °C14 August 1999	18.8 °C	1,229 mm	9
1998	32.6 °C28 January 1998	6.9 °C26 June 1998	19.1 °C	2,027 mm	9
1997	33.8 °C8 January 1997	4.6 °C28 June 1997	19.4 °C	1,689 mm	10
1996	31.5 °C25 January 1996	2.5 °C30 June 1996	19.0 °C	1,429 mm	12
1995	35.5 °C18 December 1995	3.9 °C5 August 1995	19.1 °C	1,446 mm	18
1994	34.0 °C13 December 1994	3.8 °C24 July 1994	19.4 °C	1,398 mm	14
1993	32.0 °C25 January 1993	4.7 °C16 July 1993	19.2 °C	1,409 mm	9
1992	33.7 °C21 February 1992	5.1 °C20 July 1992	19.1 °C	1,202 mm	9
1991	32.7 °C15 October 1991	2.3 °C14 July 1991	19.4 °C	1,205 mm	13
1990	33.1 °C30 January 1990	4.9 °C29 July 1990	18.9 °C	1,718 mm	8
1989	32.8 °C7 February 1989	5.7 °C1 August 1989	19.1 °C	1,356 mm	13
1988	33.9 °C24 March 1988	2.9 °C9 July 1988	18.7 °C	1,196 mm	15
1987	32.7 °C26 February 1987	5.5 °C24 June 1987	19.2 °C	1,720 mm	17
1986	33.1 °C16 January 1986	7.8 °C6 September 1986	20.1 °C	1,338 mm	20
1985	34.0 °C16 November 1985	7.7 °C11 July 1985	19.8 °C	1,331 mm	9
1984	33.4 °C28 February 1984	5.2 °C25 August 1984	19.4 °C	1,537 mm	20
1983	32.3 °C30 December 1983	5.6 °C7 June 1983	19.1 °C	1,728 mm	7
1982	31.2 °C21 February 1982	7.0 °C30 June 1982	19.5 °C	1,216 mm	4
1981	33.0 °C15 February 1981	5.2 °C19 June 1981	19.5 °C	1,178 mm	8
1980	33.8 °C23 January 1980	5.0 °C1 August 1980	19.5 °C	1,254 mm	16
1979	31.9 °C27 January 1979	5.3 °C31 May 1979	18.6 °C	1,157 mm	8
1978	34.6 °C1 February 1978	4.9 °C6 June 1978	19.3 °C	1,199 mm	17
1977	32.9 °C14 February 1977	6.9 °C17 July 1977	20.2 °C	1,261 mm	21
1976	32.8 °C14 December 1976	4.8 °C11 July 1976	18.9 °C	1,440 mm	20
1975	34.4 °C15 February 1975	4.1 °C17 July 1975	19.2 °C	1,417 mm	11
1974	31.7 °C4 November 1974	5.4 °C17 August 1974	19.2 °C	1,301 mm	13
1973	32.1 °C3 February 1973	5.7 °C19 July 1973	19.5 °C	1,650 mm	17
1972	32.4 °C14 January 1972	5.3 °C9 July 1972	19.4 °C	1,837 mm	16
1971	34.1 °C24 January 1971	4.2 °C17 June 1971	19.0 °C	1,329 mm	23
1970	33.7 °C7 March 1970	5.5 °C30 June 1970	19.5 °C	1,403 mm	19
1969	32.3 °C25 March 1969	4.3 °C19 June 1969	19.1 °C	1,333 mm	7
1968	34.5 °C10 February 1968	5.5 °C3 September 1968	18.9 °C	1,012 mm	15
1967	32.0 °C1 December 1967	5.3 °C14 June 1967	19.4 °C	1,259 mm	4
1966	31.1 °C17 March 1966	6.2 °C1 July 1966	18.9 °C	1,414 mm	7
1965	32.1 °C21 February 1965	3.0 °C12 July 1965	18.9 °C	1,321 mm	10
1964	32.8 °C4 March 1964	5.1 °C21 July 1964	18.6 °C	942 mm	12
1963	33.1 °C7 January 1963	6.3 °C7 August 1963	19.3 °C	1,416 mm	12
1962	32.1 °C28 November 1962	5.6 °C18 July 1962	18.4 °C	840 mm	3
1961	31.9 °C1 February 1961	3.9 °C17 June 1961	19.7 °C	1,268 mm	14
1960	30.8 °C23 January 1960	5.0 °C25 June 1960	18.5 °C	1,330 mm	1
1959	31.0 °C26 October 1959	6.2 °C11 June 1959	19.1 °C	1,438 mm	5
1958	32.7 °C14 February 1958	6.8 °C30 August 1958	19.3 °C	1,402 mm	7
1957	32.6 °C26 December 1957	5.2 °C3 August 1957	19.0 °C	1,444 mm	4
1956	32.8 °C5 February 1956	6.5 °C21 July 1956	18.4 °C	1,100 mm	3
1955	33.1 °C7 February 1955	3.3 °C1 August 1955	18.5 °C	1,135 mm	9
1954	31.3 °C4 March 1954	8.2 °C6 July 1954	19.2 °C	1,705 mm	4
1953	33.5 °C23 January 1953	7.0 °C25 July 1953	19.6 °C	1,041 mm	16
1952	32.6 °C27 December 1952	7.9 °C23 September 1952	18.9 °C	1,018 mm	12
1951	29.4 °C21 February 1951	6.8 °C6 July 1951	18.9 °C	954 mm	0
1950	30.9 °C12 December 1950	5.2 °C11 July 1950	18.9 °C	1,170 mm	4
1949	31.8 °C20 December 1949	6.0 °C22 August 1949	18.6 °C	1,172 mm	7
1948	29.9 °C9 January 1948	5.5 °C9 August 1948	19.0 °C	1,702 mm	0
1947	30.8 °C3 February 1947	4.2 °C14 July 1947	18.8 °C	1,178 mm	4
1946	30.1 °C24 January 1946	4.8 °C19 July 1946	19.1 °C	1,494 mm	2
1945	32.5 °C16 January 1945	6.4 °C20 June 1945	19.6 °C	1,066 mm	5
1944	32.3 °C1 January 1944	6.0 °C27 June 1944	20.0 °C	928 mm	9
1943	35.0 °C2 January 1943	6.5 °C29 August 1943	19.5 °C	951 mm	17
1942	33.7 °C16 December 1942	3.8 °C20 June 1942	19.0 °C	703 mm	12
1941	31.2 °C25 November 1941	5.3 °C19 July 1941	19.1 °C	1,516 mm	3
1940	30.8 °C14 January 1940	6.6 °C10 August 1940	19.4 °C	1,315 mm	5

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

22.9 °C

+0.3 °C

Hot days (≥ 30 °C)

28 d/yr

+15

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1473 mm

+135 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	27.2 °C	+0.2 °C	123 mm	+2 mm
Feb	29.2 °C	+2.1 °C	69 mm	-34 mm
Mar	28.0 °C	+1.9 °C	33 mm	-75 mm
Apr	23.3 °C	-0.3 °C	176 mm	+86 mm
May	21.9 °C	+1.2 °C	117 mm	+16 mm
Jun	17.0 °C	-1.6 °C	208 mm	+98 mm
Jul	16.9 °C	-1.1 °C	77 mm	-29 mm
Aug	18.3 °C	-0.6 °C	100 mm	-17 mm
Sep	20.2 °C	+0.4 °C	204 mm	+61 mm
Oct	21.8 °C	+0.1 °C	95 mm	-39 mm
Nov	23.5 °C	-0.1 °C	130 mm	+26 mm
Dec	27.4 °C	+1.7 °C	141 mm	+40 mm

The year's extremes

Hottest day

34.9 °C

11 Feb 2025

Coldest day

4.1 °C

1 Jul 2025

Wettest day

68.5 mm

8 Apr 2025

Windiest day

50.2 km/h

28 Jul 2025

Strongest gust

90.4 km/h

28 Jul 2025

Hottest feels-like

41.7 °C

11 Feb 2025

Coldest feels-like

-1.4 °C

1 Jul 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 Osório?

Osório has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 19.3 °C and it receives 1,338 mm of precipitation per year.

What is the hottest day ever recorded in Osório?

The hottest day measured in Osório between 1940 and 2025 was 7 February 2014, reaching 36.8 °C.

What is the coldest day in Osório?

The coldest day measured in Osório between 1940 and 2025 was 18 July 2000, at 2.0 °C.

Does it snow in Osório?

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

Has the climate of Osório warmed?

Yes: Osório warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Osório?

The wettest day measured in Osório between 1940 and 2025 was 31 January 2016, with 146 mm of rain in 24 hours.

What was the windiest day in Osório?

The windiest day measured in Osório between 1940 and 2025 was 1 July 2020, with winds reaching 61.6 km/h.

What is the warmest month in Osório?

The warmest month in Osório is February (23.9 °C on average); the coldest is July (14.6 °C).

How much does it rain in Osório?

Osório receives on average 1,338 mm of precipitation per year, spread over about 138 rainy days.

Is it sunny in Osório?

Osório gets on average 9.2 hours of sunshine per day, roughly 3,358 hours per year over 1940-2025.

Are there tropical nights in Osório?

Yes: Osório has on average 91 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Osório?

In Osório, between 1940 and 2025, the highest apparent temperature reached 44.0 °C on 6 February 2014, and the lowest was -3.2 °C on 30 July 1955.

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