Três Passos climate — normals and trends

Q: What is the climate of Três Passos?

Três Passos has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.1 °C and it receives 1,748 mm of precipitation per year.

Q: What is the hottest day ever recorded in Três Passos?

The hottest day measured in Três Passos between 1940 and 2025 was 11 November 2003, reaching 39.8 °C.

Q: What is the coldest day in Três Passos?

The coldest day measured in Três Passos between 1940 and 2025 was 18 July 1975, at -4.2 °C.

Q: Does it snow in Três Passos?

Almost never: Três Passos sees virtually no snow, with about 1 frost days per year.

Q: Has the climate of Três Passos warmed?

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

Q: What is the wettest day in Três Passos?

The wettest day measured in Três Passos between 1940 and 2025 was 24 January 1980, with 166 mm of rain in 24 hours.

Q: What was the windiest day in Três Passos?

The windiest day measured in Três Passos between 1940 and 2025 was 7 October 2010, with winds reaching 46.0 km/h.

Q: What is the warmest month in Três Passos?

The warmest month in Três Passos is January (24.9 °C on average); the coldest is July (14.9 °C).

Q: How much does it rain in Três Passos?

Três Passos receives on average 1,748 mm of precipitation per year, spread over about 139 rainy days.

Q: Is it sunny in Três Passos?

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

Três Passos (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 20.1 °C and it receives 1,748 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 (24.9 °C on average) and the coldest is July (14.9 °C). Rainfall peaks in October.

Três Passos averages 1 frost days, 78 hot days (≥ 30 °C) and 139 rainy days per year.

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

The number of frost days there went from about 1 to 1 per year over the period.

The hottest day of the period reached 39.8 °C (on 11 November 2003) and the coldest -4.2 °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

Três PassosRio Grande do Sul

coords: -27.46°, -53.93°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJanuaryColdest monthJulyWettest monthOctoberDriest monthJuly

Mean daily temperature

20.1°C

Average daily high

25.5°C

Average daily low

15.5°C

Annual rainfall

1,748mm

Sunshine / day

9.1h

Mean relative humidity

77%

Average peak wind

14.6km/h

Seasonal range

10.0°C

Frost days (< 0 °C)

1 d/yr

Hot days (≥ 30 °C)

78 d/yr

Rainy days (≥ 1 mm)

139 d/yr

Annual snowfall

0.1 cm

Average feels-like high

27.6 °C

Average feels-like low

15.5 °C

Average peak gust

31.4 km/h

Tropical nights (≥ 20 °C)

74 d/yr

Solar radiation

17.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.0 °C

since 1940

+0.1 °C per decade · r² = 0.27 · 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

39.8 °C

11 November 2003

Coldest day

-4.2 °C

18 July 1975

Wettest day

166 mm

24 January 1980

Windiest day

46.0 km/h

7 October 2010

Strongest gust

96.1 km/h

2 July 1983

Hottest feels-like

44.0 °C

8 January 1984

Coldest feels-like

-8.2 °C

18 July 1975

Snowiest day

9.4 cm

20 August 1965

Sunniest day

13.5 h

12 January 2022

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	37.2 °C7 December 2025	-0.8 °C1 July 2025	20.4 °C	1,739 mm	103	2
2024	37.2 °C12 February 2024	-0.1 °C30 June 2024	21.2 °C	1,950 mm	117	1
2023	36.5 °C1 January 2023	3.9 °C13 August 2023	21.1 °C	2,083 mm	103	0
2022	39.1 °C23 January 2022	1.3 °C11 June 2022	20.1 °C	1,553 mm	102	0
2021	36.6 °C19 August 2021	-1.2 °C29 July 2021	20.5 °C	1,229 mm	103	1
2020	38.5 °C11 December 2020	-0.2 °C21 August 2020	20.8 °C	1,249 mm	108	1
2019	38.7 °C1 October 2019	-1.4 °C6 July 2019	21.2 °C	1,575 mm	101	2
2018	37.8 °C13 March 2018	1.0 °C17 June 2018	20.7 °C	1,418 mm	104	0
2017	35.5 °C10 September 2017	-0.4 °C18 July 2017	21.1 °C	1,861 mm	103	1
2016	36.6 °C24 January 2016	0.2 °C11 June 2016	20.0 °C	1,668 mm	93	0
2015	36.3 °C20 October 2015	2.4 °C16 June 2015	20.9 °C	2,507 mm	87	0
2014	39.1 °C5 February 2014	1.7 °C14 August 2014	20.9 °C	2,164 mm	99	0
2013	38.5 °C25 December 2013	0.2 °C24 July 2013	19.9 °C	1,585 mm	85	0
2012	38.4 °C2 February 2012	-1.0 °C8 June 2012	21.3 °C	1,254 mm	135	1
2011	37.5 °C21 December 2011	-1.4 °C28 June 2011	20.3 °C	1,745 mm	91	5
2010	37.3 °C5 February 2010	0.7 °C14 July 2010	19.8 °C	1,810 mm	85	0
2009	36.9 °C2 November 2009	-3.8 °C25 July 2009	20.2 °C	1,724 mm	117	3
2008	37.3 °C8 December 2008	-1.0 °C17 June 2008	20.2 °C	1,438 mm	105	1
2007	36.0 °C30 March 2007	-0.2 °C30 May 2007	20.4 °C	1,934 mm	126	1
2006	38.7 °C10 January 2006	-0.5 °C22 August 2006	20.8 °C	1,529 mm	116	1
2005	38.0 °C8 March 2005	0.6 °C20 July 2005	20.9 °C	1,800 mm	131	0
2004	36.8 °C2 March 2004	-0.8 °C11 July 2004	20.3 °C	1,356 mm	112	2
2003	39.8 °C11 November 2003	-0.4 °C12 July 2003	20.4 °C	1,627 mm	98	1
2002	38.2 °C10 March 2002	0.6 °C2 September 2002	20.8 °C	2,056 mm	107	0
2001	35.4 °C20 December 2001	-1.6 °C28 July 2001	20.6 °C	1,928 mm	88	1
2000	36.5 °C7 January 2000	-2.6 °C14 July 2000	19.9 °C	2,031 mm	94	5
1999	36.3 °C27 January 1999	-1.8 °C15 August 1999	20.0 °C	1,573 mm	99	1
1998	34.6 °C8 December 1998	3.3 °C25 June 1998	19.8 °C	2,692 mm	65	0
1997	34.9 °C26 December 1997	0.6 °C1 July 1997	20.6 °C	2,183 mm	87	0
1996	37.1 °C11 January 1996	-1.5 °C29 June 1996	19.7 °C	2,002 mm	72	2
1995	38.5 °C17 December 1995	0.2 °C5 August 1995	20.3 °C	1,786 mm	99	0
1994	36.9 °C12 December 1994	-1.8 °C26 June 1994	20.4 °C	2,107 mm	85	2
1993	35.2 °C1 March 1993	-1.7 °C15 July 1993	19.7 °C	1,858 mm	99	2
1992	34.8 °C30 December 1992	-1.4 °C23 July 1992	19.6 °C	1,832 mm	69	2
1991	36.7 °C21 January 1991	-2.0 °C2 August 1991	20.6 °C	1,586 mm	107	3
1990	36.3 °C15 November 1990	-0.4 °C21 July 1990	19.5 °C	2,330 mm	69	1
1989	36.1 °C5 December 1989	-1.3 °C6 July 1989	19.5 °C	1,625 mm	81	1
1988	38.3 °C7 December 1988	-2.2 °C25 July 1988	19.9 °C	1,359 mm	108	5
1987	35.6 °C11 October 1987	-1.5 °C17 June 1987	19.7 °C	2,261 mm	79	2
1986	38.2 °C16 January 1986	2.5 °C5 September 1986	20.6 °C	1,777 mm	90	0
1985	38.9 °C9 December 1985	-0.2 °C11 July 1985	20.8 °C	1,531 mm	122	1
1984	37.9 °C10 January 1984	-0.1 °C27 August 1984	20.4 °C	1,859 mm	84	1
1983	34.7 °C9 December 1983	1.9 °C6 June 1983	19.7 °C	2,361 mm	84	0
1982	36.7 °C16 January 1982	2.4 °C29 June 1982	20.6 °C	1,790 mm	90	0
1981	35.7 °C14 March 1981	-1.9 °C19 June 1981	20.6 °C	1,365 mm	115	2
1980	35.2 °C17 December 1980	-1.0 °C31 July 1980	20.0 °C	1,962 mm	88	3
1979	39.4 °C6 February 1979	0.5 °C17 July 1979	19.6 °C	1,828 mm	77	0
1978	37.5 °C18 March 1978	0.5 °C14 August 1978	20.7 °C	1,207 mm	124	0
1977	36.7 °C30 December 1977	1.0 °C17 July 1977	21.0 °C	1,594 mm	114	0
1976	36.4 °C14 December 1976	-1.7 °C28 June 1976	19.0 °C	1,403 mm	64	2
1975	37.0 °C14 February 1975	-4.2 °C18 July 1975	19.7 °C	1,768 mm	68	3
1974	36.1 °C27 December 1974	0.2 °C13 June 1974	19.5 °C	1,525 mm	79	0
1973	35.1 °C12 January 1973	1.7 °C7 September 1973	19.8 °C	2,276 mm	70	0
1972	36.8 °C28 December 1972	-0.5 °C9 July 1972	19.9 °C	2,373 mm	61	1
1971	36.2 °C30 December 1971	-0.8 °C12 June 1971	19.4 °C	1,864 mm	69	3
1970	37.7 °C8 December 1970	1.2 °C2 July 1970	20.2 °C	1,471 mm	89	0
1969	35.3 °C21 December 1969	1.8 °C4 June 1969	19.6 °C	1,760 mm	76	0
1968	37.3 °C1 March 1968	1.8 °C17 May 1968	19.8 °C	1,221 mm	106	0
1967	35.2 °C10 November 1967	-1.8 °C14 June 1967	20.0 °C	1,921 mm	56	1
1966	34.0 °C15 March 1966	1.2 °C6 August 1966	19.4 °C	1,856 mm	44	0
1965	34.5 °C22 January 1965	0.2 °C7 July 1965	19.3 °C	1,766 mm	59	0
1964	35.2 °C24 December 1964	0.8 °C18 July 1964	19.2 °C	1,169 mm	86	0
1963	37.7 °C2 January 1963	-1.3 °C6 August 1963	20.3 °C	1,757 mm	89	1
1962	39.7 °C24 December 1962	-0.5 °C30 May 1962	18.9 °C	1,029 mm	68	1
1961	34.2 °C31 January 1961	-1.2 °C16 June 1961	20.3 °C	1,611 mm	73	3
1960	34.8 °C24 December 1960	-0.3 °C25 June 1960	19.4 °C	1,338 mm	70	1
1959	32.4 °C21 January 1959	3.8 °C8 August 1959	19.9 °C	2,017 mm	30	0
1958	36.5 °C15 February 1958	3.1 °C26 May 1958	19.9 °C	1,664 mm	55	0
1957	34.4 °C18 October 1957	1.5 °C22 July 1957	19.7 °C	1,657 mm	33	0
1956	32.3 °C5 February 1956	2.1 °C15 May 1956	18.8 °C	1,517 mm	10	0
1955	33.1 °C29 November 1955	-1.1 °C8 July 1955	19.3 °C	1,725 mm	36	3
1954	33.1 °C10 December 1954	3.2 °C8 August 1954	19.7 °C	1,994 mm	25	0
1953	33.2 °C26 December 1953	3.4 °C20 July 1953	20.5 °C	1,862 mm	36	0
1952	34.7 °C11 December 1952	3.2 °C10 June 1952	19.8 °C	1,457 mm	37	0
1951	32.4 °C25 September 1951	3.4 °C6 July 1951	19.8 °C	1,890 mm	16	0
1950	31.3 °C10 November 1950	1.6 °C6 August 1950	19.4 °C	1,876 mm	12	0
1949	32.9 °C26 December 1949	2.8 °C14 May 1949	19.4 °C	1,752 mm	25	0
1948	32.3 °C25 September 1948	2.8 °C8 August 1948	19.6 °C	2,636 mm	14	0
1947	32.1 °C30 November 1947	0.8 °C11 July 1947	19.5 °C	1,776 mm	11	0
1946	31.6 °C14 February 1946	0.9 °C21 July 1946	19.5 °C	2,065 mm	13	0
1945	34.8 °C15 January 1945	0.7 °C24 June 1945	20.3 °C	1,506 mm	33	0
1944	34.2 °C26 March 1944	0.7 °C27 June 1944	21.2 °C	1,198 mm	67	0
1943	37.9 °C17 January 1943	2.7 °C29 August 1943	20.6 °C	707 mm	88	0
1942	39.5 °C26 November 1942	-0.8 °C19 June 1942	19.9 °C	1,255 mm	74	2
1941	31.7 °C21 February 1941	0.7 °C26 June 1941	20.0 °C	2,277 mm	25	0
1940	32.5 °C14 January 1940	3.6 °C9 August 1940	19.8 °C	2,087 mm	30	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

25.9 °C

+0.4 °C

Hot days (≥ 30 °C)

103 d/yr

+25

Frost days (< 0 °C)

2 d/yr

Annual rainfall

1739 mm

-9 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	31.2 °C	+1.0 °C	63 mm	-108 mm
Feb	32.8 °C	+3.2 °C	86 mm	-59 mm
Mar	31.8 °C	+3.1 °C	47 mm	-78 mm
Apr	25.1 °C	-0.6 °C	85 mm	-43 mm
May	23.4 °C	+1.3 °C	168 mm	+24 mm
Jun	17.5 °C	-2.7 °C	305 mm	+159 mm
Jul	20.4 °C	+0.1 °C	60 mm	-58 mm
Aug	21.3 °C	-0.9 °C	137 mm	+18 mm
Sep	23.9 °C	+0.1 °C	171 mm	+15 mm
Oct	25.3 °C	-0.6 °C	284 mm	+88 mm
Nov	28.7 °C	+0.7 °C	76 mm	-73 mm
Dec	29.8 °C	0.0 °C	258 mm	+106 mm

The year's extremes

Hottest day

37.2 °C

7 Dec 2025

Coldest day

-0.8 °C

1 Jul 2025

Wettest day

81.6 mm

12 Oct 2025

Windiest day

30.6 km/h

22 Sep 2025

Strongest gust

86.0 km/h

9 May 2025

Hottest feels-like

41.6 °C

4 Feb 2025

Coldest feels-like

-4.4 °C

1 Jul 2025

Sunniest day

13.5 h

4 Jan 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 Três Passos?

Três Passos has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 20.1 °C and it receives 1,748 mm of precipitation per year.

What is the hottest day ever recorded in Três Passos?

The hottest day measured in Três Passos between 1940 and 2025 was 11 November 2003, reaching 39.8 °C.

What is the coldest day in Três Passos?

The coldest day measured in Três Passos between 1940 and 2025 was 18 July 1975, at -4.2 °C.

Does it snow in Três Passos?

Almost never: Três Passos sees virtually no snow, with about 1 frost days per year.

Has the climate of Três Passos warmed?

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

What is the wettest day in Três Passos?

The wettest day measured in Três Passos between 1940 and 2025 was 24 January 1980, with 166 mm of rain in 24 hours.

What was the windiest day in Três Passos?

The windiest day measured in Três Passos between 1940 and 2025 was 7 October 2010, with winds reaching 46.0 km/h.

What is the warmest month in Três Passos?

The warmest month in Três Passos is January (24.9 °C on average); the coldest is July (14.9 °C).

How much does it rain in Três Passos?

Três Passos receives on average 1,748 mm of precipitation per year, spread over about 139 rainy days.

Is it sunny in Três Passos?

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

What is the biggest single-day snowfall in Três Passos?

The heaviest 24-hour snowfall measured in Três Passos between 1940 and 2025 was 20 August 1965, with 9.4 cm.

Are there tropical nights in Três Passos?

Yes: Três Passos has on average 74 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Três Passos?

In Três Passos, between 1940 and 2025, the highest apparent temperature reached 44.0 °C on 8 January 1984, and the lowest was -8.2 °C on 18 July 1975.

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