San Carlos climate — normals and trends

Q: What is the climate of San Carlos?

San Carlos has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.2 °C and it receives 1,020 mm of precipitation per year.

Q: What is the hottest day ever recorded in San Carlos?

The hottest day measured in San Carlos between 1940 and 2025 was 14 January 2022, reaching 38.8 °C.

Q: What is the coldest day in San Carlos?

The coldest day measured in San Carlos between 1940 and 2025 was 15 June 1967, at -1.5 °C.

Q: Does it snow in San Carlos?

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

Q: Has the climate of San Carlos warmed?

Yes: San Carlos warmed by +0.4 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in San Carlos?

The wettest day measured in San Carlos between 1940 and 2025 was 31 October 1970, with 129 mm of rain in 24 hours.

Q: What was the windiest day in San Carlos?

The windiest day measured in San Carlos between 1940 and 2025 was 24 August 2005, with winds reaching 72.5 km/h.

Q: What is the warmest month in San Carlos?

The warmest month in San Carlos is January (22.1 °C on average); the coldest is July (10.6 °C).

Q: How much does it rain in San Carlos?

San Carlos receives on average 1,020 mm of precipitation per year, spread over about 105 rainy days.

Q: Is it sunny in San Carlos?

San Carlos gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.

San Carlos (Uruguay) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.2 °C and it receives 1,020 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 (22.1 °C on average) and the coldest is July (10.6 °C). Rainfall peaks in October.

San Carlos averages 0 frost days, 13 hot days (≥ 30 °C) and 105 rainy days per year.

San Carlos has warmed by +0.4 °C between 1940 and 2025, or +0.05 °C per decade. This trend is statistically significant.

The hottest day of the period reached 38.8 °C (on 14 January 2022) and the coldest -1.5 °C (on 15 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

San CarlosMaldonado

coords: -34.79°, -54.92°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJanuaryColdest monthJulyWettest monthOctoberDriest monthDecember

Mean daily temperature

16.2°C

Average daily high

20.3°C

Average daily low

12.6°C

Annual rainfall

1,020mm

Sunshine / day

9.4h

Mean relative humidity

77%

Average peak wind

22.3km/h

Seasonal range

11.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

13 d/yr

Rainy days (≥ 1 mm)

105 d/yr

Annual snowfall

0.0 cm

Average feels-like high

19.9 °C

Average feels-like low

10.7 °C

Average peak gust

39.2 km/h

Tropical nights (≥ 20 °C)

20 d/yr

Solar radiation

16.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.4 °C

since 1940

+0.1 °C per decade · r² = 0.09 · p = 0.006

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

38.8 °C

14 January 2022

Coldest day

-1.5 °C

15 June 1967

Wettest day

129 mm

31 October 1970

Windiest day

72.5 km/h

24 August 2005

Strongest gust

128.2 km/h

17 January 1993

Hottest feels-like

42.8 °C

30 December 1971

Coldest feels-like

-5.9 °C

1 August 1991

Sunniest day

14.3 h

14 December 2020

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	35.1 °C31 December 2025	0.3 °C3 July 2025	16.7 °C	830 mm	28	0
2024	32.6 °C7 February 2024	-1.2 °C14 July 2024	16.4 °C	935 mm	9	2
2023	37.0 °C12 February 2023	0.5 °C28 August 2023	16.9 °C	866 mm	26	0
2022	38.8 °C14 January 2022	1.4 °C3 July 2022	16.0 °C	917 mm	13	0
2021	33.4 °C29 December 2021	2.1 °C13 August 2021	16.7 °C	1,057 mm	7	0
2020	33.0 °C6 February 2020	2.0 °C30 July 2020	16.4 °C	718 mm	16	0
2019	33.5 °C10 December 2019	1.8 °C7 July 2019	16.6 °C	1,044 mm	19	0
2018	34.7 °C4 January 2018	0.9 °C1 August 2018	16.8 °C	1,000 mm	16	0
2017	33.7 °C16 December 2017	3.0 °C18 July 2017	17.4 °C	1,174 mm	19	0
2016	33.6 °C24 January 2016	2.0 °C21 July 2016	16.1 °C	1,298 mm	11	0
2015	32.6 °C27 January 2015	1.1 °C19 June 2015	16.6 °C	794 mm	7	0
2014	34.0 °C18 January 2014	0.8 °C27 July 2014	16.7 °C	1,488 mm	12	0
2013	35.7 °C26 December 2013	1.2 °C20 June 2013	16.1 °C	780 mm	22	0
2012	35.1 °C10 January 2012	0.9 °C9 June 2012	16.8 °C	1,202 mm	24	0
2011	33.4 °C16 January 2011	0.8 °C5 June 2011	15.9 °C	937 mm	10	0
2010	32.4 °C13 February 2010	-0.1 °C17 July 2010	16.4 °C	1,070 mm	20	1
2009	34.4 °C17 January 2009	-0.9 °C31 July 2009	16.1 °C	1,331 mm	12	1
2008	33.1 °C8 January 2008	2.1 °C9 August 2008	16.5 °C	893 mm	9	0
2007	33.7 °C1 January 2007	-1.0 °C29 July 2007	15.9 °C	1,164 mm	12	1
2006	33.3 °C6 January 2006	1.6 °C6 September 2006	16.3 °C	1,048 mm	12	0
2005	33.4 °C29 January 2005	2.0 °C14 September 2005	16.3 °C	1,081 mm	24	0
2004	32.3 °C12 February 2004	2.8 °C9 August 2004	16.3 °C	1,102 mm	6	0
2003	36.4 °C31 January 2003	0.6 °C26 July 2003	15.9 °C	1,242 mm	9	0
2002	33.1 °C27 February 2002	0.1 °C10 July 2002	16.4 °C	1,414 mm	11	0
2001	32.3 °C5 January 2001	2.5 °C17 September 2001	16.9 °C	1,286 mm	13	0
2000	33.4 °C20 January 2000	0.4 °C14 July 2000	16.1 °C	1,229 mm	11	0
1999	33.4 °C26 December 1999	0.9 °C16 August 1999	15.7 °C	972 mm	5	0
1998	32.1 °C21 January 1998	3.0 °C9 July 1998	15.9 °C	1,201 mm	6	0
1997	33.3 °C1 February 1997	0.7 °C28 June 1997	16.4 °C	989 mm	6	0
1996	32.5 °C22 February 1996	-0.4 °C30 June 1996	16.1 °C	1,077 mm	9	1
1995	36.3 °C18 December 1995	-0.2 °C20 August 1995	15.7 °C	822 mm	12	1
1994	32.8 °C11 December 1994	0.7 °C5 July 1994	16.2 °C	1,051 mm	7	0
1993	33.7 °C14 January 1993	1.1 °C12 July 1993	16.1 °C	1,276 mm	13	0
1992	32.7 °C20 February 1992	-0.5 °C9 August 1992	15.9 °C	1,149 mm	7	1
1991	34.3 °C27 February 1991	-0.4 °C15 July 1991	16.2 °C	1,103 mm	8	1
1990	36.6 °C26 January 1990	-0.3 °C2 September 1990	16.2 °C	1,158 mm	16	2
1989	33.1 °C6 February 1989	1.6 °C4 July 1989	16.7 °C	669 mm	26	0
1988	32.4 °C4 December 1988	0.2 °C3 September 1988	15.5 °C	822 mm	8	0
1987	33.8 °C29 January 1987	1.5 °C15 June 1987	16.1 °C	1,065 mm	13	0
1986	36.9 °C25 January 1986	1.8 °C20 August 1986	16.4 °C	1,253 mm	11	0
1985	32.6 °C15 November 1985	1.5 °C2 September 1985	16.3 °C	969 mm	9	0
1984	32.2 °C18 January 1984	0.5 °C8 August 1984	15.6 °C	1,326 mm	5	0
1983	32.6 °C23 January 1983	0.5 °C12 September 1983	15.8 °C	1,222 mm	12	0
1982	33.4 °C26 December 1982	2.8 °C19 August 1982	16.3 °C	1,167 mm	11	0
1981	32.1 °C25 February 1981	1.2 °C22 September 1981	16.1 °C	1,119 mm	10	0
1980	34.8 °C22 January 1980	0.7 °C31 July 1980	16.6 °C	1,162 mm	18	0
1979	31.9 °C4 February 1979	1.1 °C5 September 1979	15.8 °C	689 mm	10	0
1978	31.9 °C17 January 1978	1.7 °C5 June 1978	15.9 °C	1,308 mm	4	0
1977	32.7 °C8 January 1977	3.6 °C16 August 1977	16.5 °C	1,139 mm	10	0
1976	34.9 °C1 January 1976	1.1 °C13 July 1976	15.3 °C	1,161 mm	3	0
1975	33.7 °C18 December 1975	0.4 °C18 July 1975	16.1 °C	930 mm	14	0
1974	34.1 °C19 January 1974	1.9 °C14 June 1974	16.0 °C	839 mm	8	0
1973	31.8 °C2 February 1973	1.9 °C2 July 1973	16.0 °C	1,008 mm	6	0
1972	34.6 °C11 January 1972	2.1 °C5 August 1972	16.2 °C	1,310 mm	11	0
1971	36.3 °C29 December 1971	1.5 °C25 August 1971	15.9 °C	1,145 mm	10	0
1970	35.9 °C27 February 1970	-0.3 °C2 July 1970	16.3 °C	1,198 mm	13	1
1969	35.2 °C31 January 1969	2.5 °C16 July 1969	16.3 °C	961 mm	9	0
1968	35.3 °C11 December 1968	1.3 °C3 September 1968	16.1 °C	1,082 mm	8	0
1967	33.7 °C31 January 1967	-1.5 °C15 June 1967	16.3 °C	1,167 mm	23	1
1966	30.6 °C4 February 1966	1.8 °C3 September 1966	15.6 °C	836 mm	2	0
1965	35.1 °C17 February 1965	2.1 °C12 July 1965	16.1 °C	822 mm	25	0
1964	33.9 °C26 January 1964	0.2 °C3 September 1964	15.3 °C	787 mm	13	0
1963	33.2 °C26 January 1963	2.8 °C8 August 1963	16.0 °C	1,170 mm	10	0
1962	36.2 °C29 December 1962	1.5 °C20 July 1962	15.6 °C	671 mm	11	0
1961	34.5 °C9 January 1961	2.1 °C14 June 1961	16.2 °C	930 mm	10	0
1960	33.9 °C24 February 1960	1.4 °C25 June 1960	15.8 °C	780 mm	21	0
1959	32.5 °C2 March 1959	2.5 °C3 July 1959	15.5 °C	1,094 mm	14	0
1958	31.1 °C7 January 1958	2.9 °C19 June 1958	16.2 °C	983 mm	1	0
1957	37.2 °C11 January 1957	-0.3 °C15 July 1957	15.9 °C	1,103 mm	11	1
1956	34.2 °C13 December 1956	2.4 °C7 July 1956	16.4 °C	594 mm	25	0
1955	34.5 °C6 January 1955	-1.0 °C6 August 1955	15.8 °C	696 mm	19	1
1954	33.7 °C3 March 1954	1.4 °C19 July 1954	16.1 °C	874 mm	12	0
1953	34.2 °C20 February 1953	1.7 °C20 July 1953	16.4 °C	936 mm	15	0
1952	36.0 °C27 December 1952	0.3 °C19 August 1952	16.0 °C	1,025 mm	10	0
1951	31.1 °C4 January 1951	0.6 °C4 August 1951	16.3 °C	1,125 mm	6	0
1950	37.0 °C29 January 1950	2.5 °C12 July 1950	16.0 °C	612 mm	24	0
1949	34.8 °C25 February 1949	0.1 °C22 July 1949	15.8 °C	847 mm	22	0
1948	33.8 °C1 January 1948	-0.4 °C9 August 1948	16.6 °C	828 mm	20	1
1947	37.0 °C1 February 1947	1.6 °C12 August 1947	16.8 °C	768 mm	23	0
1946	35.1 °C15 February 1946	1.7 °C21 July 1946	16.2 °C	851 mm	19	0
1945	33.7 °C22 March 1945	3.7 °C26 June 1945	16.6 °C	763 mm	22	0
1944	34.2 °C12 February 1944	3.5 °C17 August 1944	16.7 °C	1,401 mm	5	0
1943	34.6 °C21 February 1943	2.1 °C3 August 1943	16.9 °C	893 mm	14	0
1942	32.7 °C9 January 1942	1.3 °C20 June 1942	15.9 °C	1,139 mm	7	0
1941	34.7 °C15 February 1941	2.9 °C16 September 1941	15.9 °C	736 mm	13	0
1940	31.1 °C13 March 1940	2.9 °C27 August 1940	15.7 °C	1,026 mm	3	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

20.9 °C

+0.6 °C

Hot days (≥ 30 °C)

28 d/yr

+15

Frost days (< 0 °C)

0 d/yr

Annual rainfall

830 mm

-190 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	26.6 °C	0.0 °C	53 mm	-29 mm
Feb	28.1 °C	+2.1 °C	134 mm	+42 mm
Mar	25.8 °C	+1.5 °C	64 mm	-27 mm
Apr	20.2 °C	-0.9 °C	67 mm	-21 mm
May	19.3 °C	+1.5 °C	100 mm	+22 mm
Jun	13.8 °C	-1.1 °C	76 mm	-9 mm
Jul	14.1 °C	-0.2 °C	38 mm	-45 mm
Aug	15.5 °C	+0.1 °C	65 mm	-23 mm
Sep	17.0 °C	+0.3 °C	47 mm	-40 mm
Oct	21.1 °C	+1.9 °C	88 mm	-4 mm
Nov	22.4 °C	+0.4 °C	56 mm	-25 mm
Dec	27.6 °C	+2.7 °C	41 mm	-31 mm

The year's extremes

Hottest day

35.1 °C

31 Dec 2025

Coldest day

0.3 °C

3 Jul 2025

Wettest day

59.9 mm

5 Feb 2025

Windiest day

47.0 km/h

23 Jun 2025

Strongest gust

79.2 km/h

23 Jun 2025

Hottest feels-like

40.3 °C

6 Mar 2025

Coldest feels-like

-3.6 °C

3 Jul 2025

Sunniest day

14.3 h

13 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 San Carlos?

San Carlos has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.2 °C and it receives 1,020 mm of precipitation per year.

What is the hottest day ever recorded in San Carlos?

The hottest day measured in San Carlos between 1940 and 2025 was 14 January 2022, reaching 38.8 °C.

What is the coldest day in San Carlos?

The coldest day measured in San Carlos between 1940 and 2025 was 15 June 1967, at -1.5 °C.

Does it snow in San Carlos?

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

Has the climate of San Carlos warmed?

Yes: San Carlos warmed by +0.4 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in San Carlos?

The wettest day measured in San Carlos between 1940 and 2025 was 31 October 1970, with 129 mm of rain in 24 hours.

What was the windiest day in San Carlos?

The windiest day measured in San Carlos between 1940 and 2025 was 24 August 2005, with winds reaching 72.5 km/h.

What is the warmest month in San Carlos?

The warmest month in San Carlos is January (22.1 °C on average); the coldest is July (10.6 °C).

How much does it rain in San Carlos?

San Carlos receives on average 1,020 mm of precipitation per year, spread over about 105 rainy days.

Is it sunny in San Carlos?

San Carlos gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.

Are there tropical nights in San Carlos?

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

What was the most extreme apparent temperature in San Carlos?

In San Carlos, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 30 December 1971, and the lowest was -5.9 °C on 1 August 1991.

Compare San Carlos with another city

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