Santiago climate — normals and trends

Q: What is the climate of Santiago?

Santiago has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.9 °C and it receives 1,824 mm of precipitation per year.

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

The hottest day measured in Santiago between 1940 and 2025 was 16 November 1985, reaching 41.2 °C.

Q: What is the coldest day in Santiago?

The coldest day measured in Santiago between 1940 and 2025 was 14 June 1967, at -4.3 °C.

Q: Does it snow in Santiago?

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

Q: Has the climate of Santiago warmed?

Yes: Santiago warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Santiago?

The wettest day measured in Santiago between 1940 and 2025 was 7 November 2009, with 141 mm of rain in 24 hours.

Q: What was the windiest day in Santiago?

The windiest day measured in Santiago between 1940 and 2025 was 29 April 1992, with winds reaching 48.5 km/h.

Q: What is the warmest month in Santiago?

The warmest month in Santiago is January (24.3 °C on average); the coldest is July (13.6 °C).

Q: How much does it rain in Santiago?

Santiago receives on average 1,824 mm of precipitation per year, spread over about 134 rainy days.

Q: Is it sunny in Santiago?

Santiago gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.

Santiago (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.9 °C and it receives 1,824 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 (24.3 °C on average) and the coldest is July (13.6 °C). Rainfall peaks in October.

Santiago averages 1 frost days, 53 hot days (≥ 30 °C) and 134 rainy days per year.

Santiago has warmed by +0.9 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.

The number of frost days there went from about 0 to 2 per year over the period.

The hottest day of the period reached 41.2 °C (on 16 November 1985) and the coldest -4.3 °C (on 14 June 1967).

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

SantiagoRio Grande do Sul

coords: -29.19°, -54.87°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJanuaryColdest monthJulyWettest monthOctoberDriest monthAugust

Mean daily temperature

18.9°C

Average daily high

24.0°C

Average daily low

14.5°C

Annual rainfall

1,824mm

Sunshine / day

9.0h

Mean relative humidity

76%

Average peak wind

16.3km/h

Seasonal range

10.7°C

Frost days (< 0 °C)

1 d/yr

Hot days (≥ 30 °C)

53 d/yr

Rainy days (≥ 1 mm)

134 d/yr

Annual snowfall

0.0 cm

Average feels-like high

25.3 °C

Average feels-like low

13.9 °C

Average peak gust

34.6 km/h

Tropical nights (≥ 20 °C)

53 d/yr

Solar radiation

16.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.9 °C

since 1940

+0.1 °C per decade · r² = 0.22 · 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

41.2 °C

16 November 1985

Coldest day

-4.3 °C

14 June 1967

Wettest day

141 mm

7 November 2009

Windiest day

48.5 km/h

29 April 1992

Strongest gust

108.4 km/h

5 June 1992

Hottest feels-like

44.1 °C

16 November 1985

Coldest feels-like

-8.3 °C

14 June 1967

Snowiest day

0.4 cm

19 July 1981

Sunniest day

13.7 h

9 January 1943

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	37.1 °C3 March 2025	-2.2 °C1 July 2025	19.1 °C	1,818 mm	79	2
2024	35.5 °C12 February 2024	-0.6 °C9 July 2024	19.7 °C	1,812 mm	60	1
2023	36.1 °C1 December 2023	1.1 °C18 July 2023	19.9 °C	1,945 mm	80	0
2022	38.1 °C20 January 2022	0.5 °C11 June 2022	18.9 °C	1,303 mm	83	0
2021	35.8 °C11 January 2021	-0.6 °C29 July 2021	18.9 °C	1,383 mm	61	1
2020	37.4 °C14 March 2020	-0.3 °C29 July 2020	19.4 °C	1,074 mm	81	1
2019	36.7 °C28 December 2019	-2.1 °C7 July 2019	19.8 °C	1,795 mm	70	2
2018	35.1 °C18 March 2018	0.5 °C16 June 2018	19.3 °C	1,849 mm	62	0
2017	37.7 °C16 December 2017	-0.4 °C18 July 2017	20.1 °C	1,925 mm	69	2
2016	36.6 °C24 January 2016	-1.2 °C12 June 2016	19.0 °C	1,705 mm	73	3
2015	34.8 °C13 January 2015	0.7 °C12 September 2015	19.5 °C	2,186 mm	46	0
2014	36.5 °C10 February 2014	0.3 °C14 August 2014	19.6 °C	2,256 mm	73	0
2013	36.8 °C26 December 2013	0.1 °C25 July 2013	18.8 °C	1,639 mm	56	0
2012	37.9 °C19 February 2012	-2.0 °C7 June 2012	20.1 °C	1,647 mm	94	3
2011	37.6 °C20 December 2011	-1.3 °C4 July 2011	19.4 °C	1,681 mm	85	2
2010	35.9 °C7 February 2010	-0.4 °C15 July 2010	19.0 °C	1,646 mm	75	1
2009	35.6 °C2 November 2009	-2.6 °C25 July 2009	18.9 °C	2,055 mm	73	5
2008	36.7 °C21 December 2008	-0.3 °C17 June 2008	18.9 °C	1,570 mm	67	2
2007	36.0 °C23 December 2007	-1.9 °C12 July 2007	19.1 °C	2,010 mm	87	2
2006	37.6 °C10 January 2006	-0.6 °C1 August 2006	19.6 °C	1,733 mm	85	2
2005	36.2 °C7 January 2005	0.6 °C20 July 2005	19.5 °C	1,505 mm	93	0
2004	35.5 °C15 December 2004	-1.2 °C11 July 2004	19.1 °C	1,255 mm	75	2
2003	34.8 °C4 February 2003	-1.3 °C12 July 2003	19.0 °C	2,050 mm	54	1
2002	35.9 °C10 March 2002	-0.8 °C2 September 2002	19.4 °C	2,801 mm	64	2
2001	34.2 °C3 January 2001	-0.4 °C28 July 2001	19.6 °C	2,080 mm	56	1
2000	35.5 °C8 January 2000	-3.0 °C14 July 2000	18.6 °C	1,956 mm	54	4
1999	36.5 °C27 December 1999	0.6 °C15 August 1999	18.8 °C	1,889 mm	81	0
1998	34.3 °C8 December 1998	1.8 °C21 September 1998	18.6 °C	2,820 mm	40	0
1997	35.1 °C7 January 1997	-0.6 °C28 June 1997	19.4 °C	2,255 mm	70	1
1996	37.4 °C4 January 1996	-3.4 °C29 June 1996	18.7 °C	1,897 mm	54	2
1995	38.9 °C18 December 1995	-1.6 °C5 August 1995	19.1 °C	1,795 mm	66	1
1994	36.4 °C12 December 1994	-1.5 °C10 July 1994	19.3 °C	2,024 mm	66	2
1993	33.7 °C23 January 1993	-1.8 °C15 July 1993	18.6 °C	2,002 mm	50	2
1992	34.2 °C20 January 1992	-0.6 °C16 July 1992	18.4 °C	1,954 mm	44	3
1991	35.9 °C20 January 1991	-2.8 °C14 July 1991	19.3 °C	1,659 mm	73	4
1990	34.9 °C14 November 1990	-1.7 °C28 July 1990	18.5 °C	2,150 mm	48	2
1989	34.9 °C4 January 1989	-1.0 °C6 July 1989	18.6 °C	1,653 mm	57	2
1988	36.6 °C12 January 1988	-2.3 °C1 June 1988	18.5 °C	1,532 mm	64	6
1987	35.8 °C1 December 1987	-0.4 °C16 June 1987	18.9 °C	2,278 mm	58	1
1986	38.4 °C16 January 1986	1.8 °C14 May 1986	19.8 °C	2,370 mm	65	0
1985	41.2 °C16 November 1985	-1.0 °C11 July 1985	19.9 °C	1,971 mm	88	1
1984	35.1 °C7 January 1984	-0.5 °C26 August 1984	18.9 °C	2,559 mm	57	1
1983	35.0 °C30 December 1983	-0.4 °C5 June 1983	18.5 °C	2,201 mm	58	1
1982	34.7 °C27 January 1982	2.1 °C29 June 1982	19.3 °C	1,984 mm	49	0
1981	33.1 °C27 February 1981	-2.1 °C19 June 1981	19.2 °C	1,591 mm	53	2
1980	34.7 °C22 January 1980	-1.4 °C31 July 1980	19.2 °C	1,875 mm	67	5
1979	37.8 °C5 February 1979	-0.1 °C15 June 1979	18.4 °C	1,799 mm	55	1
1978	35.3 °C30 January 1978	0.7 °C1 June 1978	18.9 °C	1,527 mm	51	0
1977	34.2 °C9 March 1977	0.8 °C2 September 1977	19.6 °C	2,093 mm	67	0
1976	35.0 °C27 November 1976	-1.4 °C10 July 1976	18.0 °C	1,563 mm	35	1
1975	35.5 °C14 February 1975	-1.6 °C18 July 1975	18.5 °C	1,791 mm	49	2
1974	35.3 °C3 January 1974	0.1 °C8 August 1974	18.5 °C	1,514 mm	42	0
1973	35.3 °C12 January 1973	1.4 °C19 July 1973	18.6 °C	2,395 mm	44	0
1972	37.2 °C28 December 1972	-0.4 °C14 July 1972	18.8 °C	2,777 mm	36	2
1971	37.5 °C28 December 1971	-0.6 °C16 June 1971	18.5 °C	1,471 mm	57	3
1970	35.5 °C27 December 1970	-1.1 °C2 July 1970	18.9 °C	2,069 mm	53	1
1969	34.1 °C4 February 1969	-0.7 °C19 June 1969	18.5 °C	1,989 mm	45	1
1968	36.5 °C11 January 1968	0.9 °C3 September 1968	18.9 °C	1,538 mm	81	0
1967	35.8 °C18 December 1967	-4.3 °C14 June 1967	18.8 °C	2,067 mm	36	2
1966	33.5 °C11 December 1966	-1.0 °C6 August 1966	17.9 °C	2,087 mm	17	2
1965	36.9 °C1 February 1965	-0.7 °C16 July 1965	18.6 °C	1,886 mm	70	3
1964	35.2 °C25 January 1964	0.5 °C18 June 1964	17.9 °C	1,139 mm	48	0
1963	36.6 °C2 January 1963	-0.1 °C23 July 1963	18.9 °C	1,662 mm	45	1
1962	37.2 °C25 December 1962	-0.3 °C25 July 1962	17.7 °C	1,140 mm	48	2
1961	34.3 °C31 January 1961	-1.4 °C15 June 1961	19.1 °C	1,857 mm	48	3
1960	35.0 °C9 December 1960	0.2 °C9 July 1960	18.6 °C	1,379 mm	56	0
1959	32.3 °C20 January 1959	1.9 °C10 June 1959	18.5 °C	2,480 mm	22	0
1958	35.3 °C7 January 1958	1.0 °C26 May 1958	18.5 °C	1,893 mm	30	0
1957	33.9 °C25 December 1957	0.4 °C21 July 1957	18.4 °C	1,780 mm	17	0
1956	31.3 °C5 February 1956	1.2 °C14 May 1956	17.5 °C	1,664 mm	3	0
1955	33.0 °C6 January 1955	-1.2 °C8 July 1955	18.0 °C	1,712 mm	19	2
1954	31.8 °C11 December 1954	2.3 °C8 August 1954	18.4 °C	1,900 mm	18	0
1953	35.5 °C5 January 1953	0.3 °C20 July 1953	19.2 °C	2,060 mm	32	0
1952	34.5 °C27 December 1952	3.2 °C17 June 1952	18.6 °C	1,514 mm	27	0
1951	30.7 °C17 January 1951	2.3 °C6 July 1951	18.6 °C	1,599 mm	6	0
1950	32.2 °C21 December 1950	1.5 °C11 July 1950	18.4 °C	1,440 mm	20	0
1949	33.9 °C20 December 1949	0.0 °C19 July 1949	18.4 °C	1,438 mm	25	0
1948	31.7 °C12 December 1948	0.5 °C9 August 1948	18.5 °C	2,310 mm	7	0
1947	31.8 °C22 January 1947	-0.5 °C11 July 1947	18.5 °C	1,600 mm	8	1
1946	33.7 °C23 January 1946	0.7 °C19 July 1946	18.5 °C	1,900 mm	15	0
1945	35.4 °C15 January 1945	-1.4 °C9 July 1945	19.3 °C	1,392 mm	36	2
1944	33.3 °C20 December 1944	0.9 °C27 June 1944	20.0 °C	1,633 mm	42	0
1943	37.6 °C17 January 1943	2.4 °C24 August 1943	19.7 °C	915 mm	65	0
1942	34.8 °C26 November 1942	-0.7 °C18 June 1942	18.8 °C	1,126 mm	46	3
1941	31.0 °C16 February 1941	0.2 °C25 June 1941	18.8 °C	1,806 mm	9	0
1940	33.1 °C9 March 1940	2.3 °C27 August 1940	18.9 °C	1,802 mm	38	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

24.4 °C

+0.4 °C

Hot days (≥ 30 °C)

79 d/yr

+26

Frost days (< 0 °C)

2 d/yr

Annual rainfall

1818 mm

-7 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	31.2 °C	+1.7 °C	58 mm	-120 mm
Feb	32.7 °C	+4.0 °C	107 mm	-50 mm
Mar	29.7 °C	+2.3 °C	116 mm	-20 mm
Apr	23.3 °C	-0.8 °C	82 mm	-65 mm
May	21.7 °C	+1.0 °C	253 mm	+113 mm
Jun	15.2 °C	-3.2 °C	216 mm	+71 mm
Jul	18.2 °C	-0.2 °C	56 mm	-75 mm
Aug	19.6 °C	-0.4 °C	143 mm	+12 mm
Sep	21.8 °C	+0.2 °C	287 mm	+110 mm
Oct	24.0 °C	0.0 °C	151 mm	-42 mm
Nov	27.0 °C	+0.5 °C	107 mm	-42 mm
Dec	29.1 °C	+0.3 °C	242 mm	+101 mm

The year's extremes

Hottest day

37.1 °C

3 Mar 2025

Coldest day

-2.2 °C

1 Jul 2025

Wettest day

65.5 mm

4 Sep 2025

Windiest day

33.7 km/h

20 Aug 2025

Strongest gust

79.6 km/h

22 Aug 2025

Hottest feels-like

41.6 °C

2 Mar 2025

Coldest feels-like

-5.8 °C

1 Jul 2025

Sunniest day

13.7 h

8 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 Santiago?

Santiago has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.9 °C and it receives 1,824 mm of precipitation per year.

What is the hottest day ever recorded in Santiago?

The hottest day measured in Santiago between 1940 and 2025 was 16 November 1985, reaching 41.2 °C.

What is the coldest day in Santiago?

The coldest day measured in Santiago between 1940 and 2025 was 14 June 1967, at -4.3 °C.

Does it snow in Santiago?

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

Has the climate of Santiago warmed?

Yes: Santiago warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Santiago?

The wettest day measured in Santiago between 1940 and 2025 was 7 November 2009, with 141 mm of rain in 24 hours.

What was the windiest day in Santiago?

The windiest day measured in Santiago between 1940 and 2025 was 29 April 1992, with winds reaching 48.5 km/h.

What is the warmest month in Santiago?

The warmest month in Santiago is January (24.3 °C on average); the coldest is July (13.6 °C).

How much does it rain in Santiago?

Santiago receives on average 1,824 mm of precipitation per year, spread over about 134 rainy days.

Is it sunny in Santiago?

Santiago gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.

What is the biggest single-day snowfall in Santiago?

The heaviest 24-hour snowfall measured in Santiago between 1940 and 2025 was 19 July 1981, with 0.4 cm.

Are there tropical nights in Santiago?

Yes: Santiago has on average 53 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Santiago?

In Santiago, between 1940 and 2025, the highest apparent temperature reached 44.1 °C on 16 November 1985, and the lowest was -8.3 °C on 14 June 1967.

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