San Martín climate — normals and trends

Q: What is the climate of San Martín?

San Martín has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 23.9 °C and it receives 5,133 mm of precipitation per year.

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

The hottest day measured in San Martín between 1940 and 2025 was 26 March 2016, reaching 36.3 °C.

Q: What is the coldest day in San Martín?

The coldest day measured in San Martín between 1940 and 2025 was 15 February 1963, at 15.0 °C.

Q: Does it snow in San Martín?

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

Q: Has the climate of San Martín warmed?

Yes: San Martín warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in San Martín?

The wettest day measured in San Martín between 1940 and 2025 was 29 May 2021, with 169 mm of rain in 24 hours.

Q: What was the windiest day in San Martín?

The windiest day measured in San Martín between 1940 and 2025 was 5 December 1989, with winds reaching 12.9 km/h.

Q: What is the warmest month in San Martín?

The warmest month in San Martín is March (24.4 °C on average); the coldest is September (23.6 °C).

Q: How much does it rain in San Martín?

San Martín receives on average 5,133 mm of precipitation per year, spread over about 340 rainy days.

Q: Is it sunny in San Martín?

San Martín gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

San Martín (Colombia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 23.9 °C and it receives 5,133 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 March (24.4 °C on average) and the coldest is September (23.6 °C). Rainfall peaks in June.

San Martín averages 0 frost days, 23 hot days (≥ 30 °C) and 340 rainy days per year.

San Martín has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.3 °C (on 26 March 2016) and the coldest 15.0 °C (on 15 February 1963).

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 MartínCesar Department

coords: 8.00°, -73.51°
period: 1940–2025 · 86 yrs

AfTropical rainforestWarmest monthMarchColdest monthSeptemberWettest monthJuneDriest monthJanuary

Mean daily temperature

23.9°C

Average daily high

27.6°C

Average daily low

20.7°C

Annual rainfall

5,133mm

Sunshine / day

9.6h

Mean relative humidity

85%

Average peak wind

6.9km/h

Seasonal range

0.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

23 d/yr

Rainy days (≥ 1 mm)

340 d/yr

Annual snowfall

0.0 cm

Average feels-like high

33.0 °C

Average feels-like low

23.6 °C

Average peak gust

24.0 km/h

Tropical nights (≥ 20 °C)

287 d/yr

Solar radiation

18.0 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.1 °C

since 1940

+0.2 °C per decade · r² = 0.71 · 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

36.3 °C

26 March 2016

Coldest day

15.0 °C

15 February 1963

Wettest day

169 mm

29 May 2021

Windiest day

12.9 km/h

5 December 1989

Strongest gust

38.2 km/h

28 September 1958

Hottest feels-like

42.2 °C

18 March 2024

Coldest feels-like

15.1 °C

15 February 1963

Sunniest day

12.0 h

3 June 2017

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	31.9 °C1 February 2025	18.0 °C22 January 2025	24.5 °C	5,239 mm	26
2024	35.1 °C18 March 2024	17.9 °C8 December 2024	25.4 °C	4,747 mm	135
2023	32.3 °C3 March 2023	17.1 °C26 January 2023	25.0 °C	4,171 mm	99
2022	32.3 °C25 February 2022	17.1 °C5 January 2022	24.3 °C	5,117 mm	34
2021	34.7 °C1 March 2021	16.9 °C19 January 2021	24.5 °C	5,005 mm	55
2020	34.4 °C19 February 2020	17.1 °C14 December 2020	24.8 °C	4,570 mm	84
2019	32.8 °C13 February 2019	18.1 °C1 January 2019	25.0 °C	4,061 mm	94
2018	33.1 °C11 March 2018	17.2 °C28 December 2018	24.7 °C	4,763 mm	66
2017	33.7 °C3 March 2017	18.2 °C17 January 2017	25.0 °C	4,318 mm	70
2016	36.3 °C26 March 2016	19.3 °C17 January 2016	25.6 °C	4,469 mm	118
2015	32.3 °C5 August 2015	17.9 °C3 January 2015	25.2 °C	4,827 mm	78
2014	32.3 °C21 February 2014	18.0 °C12 January 2014	25.0 °C	4,400 mm	64
2013	32.3 °C3 February 2013	18.5 °C11 January 2013	24.9 °C	5,355 mm	63
2012	32.2 °C4 March 2012	19.4 °C19 September 2012	24.9 °C	4,751 mm	49
2011	30.6 °C5 June 2011	19.0 °C13 January 2011	24.4 °C	5,704 mm	12
2010	32.3 °C2 February 2010	18.2 °C4 January 2010	24.8 °C	5,675 mm	53
2009	30.7 °C10 May 2009	19.3 °C7 April 2009	24.6 °C	4,884 mm	16
2008	30.2 °C26 December 2008	16.4 °C29 January 2008	24.1 °C	5,162 mm	5
2007	34.3 °C1 March 2007	17.1 °C4 February 2007	24.3 °C	5,272 mm	35
2006	31.1 °C22 May 2006	17.8 °C21 January 2006	24.2 °C	5,330 mm	11
2005	31.3 °C23 February 2005	17.5 °C20 January 2005	24.6 °C	4,682 mm	26
2004	32.6 °C4 March 2004	17.3 °C6 February 2004	24.4 °C	4,978 mm	43
2003	33.7 °C15 February 2003	17.8 °C21 January 2003	24.4 °C	4,942 mm	70
2002	33.2 °C9 March 2002	17.8 °C27 January 2002	24.3 °C	4,601 mm	46
2001	31.1 °C28 June 2001	16.6 °C3 February 2001	23.9 °C	4,547 mm	14
2000	30.6 °C27 April 2000	17.3 °C14 January 2000	23.6 °C	4,979 mm	3
1999	30.7 °C24 May 1999	16.4 °C17 January 1999	23.5 °C	5,232 mm	4
1998	32.4 °C2 February 1998	18.5 °C3 January 1998	24.4 °C	5,622 mm	47
1997	32.0 °C9 March 1997	18.0 °C6 March 1997	24.3 °C	4,276 mm	42
1996	30.9 °C19 July 1996	17.1 °C18 March 1996	23.5 °C	5,621 mm	6
1995	33.6 °C19 February 1995	17.4 °C11 January 1995	23.9 °C	5,212 mm	26
1994	29.9 °C29 January 1994	17.2 °C22 January 1994	23.8 °C	5,798 mm	0
1993	31.5 °C17 May 1993	17.5 °C25 January 1993	23.8 °C	5,526 mm	5
1992	30.3 °C25 February 1992	17.5 °C11 January 1992	23.9 °C	4,849 mm	7
1991	32.4 °C18 February 1991	17.4 °C24 January 1991	24.3 °C	5,146 mm	32
1990	30.8 °C10 April 1990	15.9 °C26 February 1990	23.8 °C	4,770 mm	2
1989	32.0 °C14 February 1989	15.4 °C16 February 1989	23.5 °C	4,944 mm	5
1988	32.0 °C5 March 1988	17.5 °C20 December 1988	23.8 °C	4,985 mm	26
1987	31.0 °C24 February 1987	17.7 °C12 January 1987	24.1 °C	4,753 mm	14
1986	30.3 °C3 January 1986	18.1 °C13 June 1986	23.5 °C	5,106 mm	1
1985	33.2 °C7 February 1985	16.9 °C16 January 1985	23.7 °C	4,552 mm	42
1984	30.9 °C30 December 1984	17.5 °C8 December 1984	23.2 °C	5,382 mm	3
1983	30.4 °C5 February 1983	18.2 °C9 February 1983	24.0 °C	4,802 mm	8
1982	30.5 °C21 January 1982	17.4 °C19 January 1982	23.8 °C	5,193 mm	2
1981	31.2 °C20 May 1981	17.9 °C21 January 1981	23.8 °C	5,215 mm	2
1980	31.8 °C28 March 1980	17.4 °C25 February 1980	24.2 °C	4,810 mm	29
1979	31.3 °C3 February 1979	17.7 °C8 January 1979	24.1 °C	5,342 mm	25
1978	30.2 °C13 March 1978	17.7 °C2 January 1978	23.9 °C	5,980 mm	1
1977	31.6 °C11 March 1977	17.4 °C2 January 1977	24.0 °C	5,207 mm	17
1976	30.7 °C17 February 1976	16.4 °C16 February 1976	23.8 °C	4,698 mm	6
1975	31.4 °C30 January 1975	16.3 °C25 January 1975	23.5 °C	6,097 mm	10
1974	30.4 °C15 June 1974	16.9 °C5 January 1974	23.5 °C	5,396 mm	2
1973	32.3 °C26 February 1973	18.2 °C26 February 1973	24.1 °C	5,482 mm	48
1972	31.5 °C4 April 1972	16.9 °C22 February 1972	24.1 °C	5,110 mm	27
1971	31.1 °C26 April 1971	16.7 °C16 June 1971	23.6 °C	5,911 mm	4
1970	31.6 °C15 February 1970	17.0 °C26 January 1970	24.0 °C	6,142 mm	19
1969	31.9 °C6 May 1969	17.7 °C2 February 1969	24.4 °C	5,294 mm	32
1968	31.5 °C31 March 1968	17.0 °C10 January 1968	23.9 °C	5,616 mm	9
1967	31.4 °C17 January 1967	17.4 °C2 January 1967	24.0 °C	4,750 mm	10
1966	31.4 °C10 February 1966	18.1 °C14 February 1966	24.2 °C	5,110 mm	19
1965	31.5 °C6 February 1965	16.9 °C31 January 1965	24.0 °C	4,846 mm	10
1964	30.5 °C2 February 1964	15.3 °C22 December 1964	23.5 °C	5,227 mm	5
1963	31.1 °C29 January 1963	15.0 °C15 February 1963	23.6 °C	5,348 mm	2
1962	29.8 °C12 May 1962	17.3 °C11 January 1962	23.4 °C	5,395 mm	0
1961	30.9 °C5 March 1961	16.5 °C15 February 1961	23.4 °C	4,844 mm	3
1960	29.5 °C22 June 1960	17.5 °C23 December 1960	23.3 °C	5,325 mm	0
1959	31.4 °C15 February 1959	17.0 °C3 February 1959	23.5 °C	5,185 mm	9
1958	31.4 °C9 June 1958	18.4 °C16 December 1958	24.4 °C	5,115 mm	30
1957	30.1 °C17 September 1957	15.9 °C13 January 1957	23.7 °C	4,335 mm	6
1956	28.1 °C28 March 1956	17.1 °C20 January 1956	22.5 °C	5,831 mm	0
1955	28.0 °C26 March 1955	16.6 °C3 January 1955	22.6 °C	5,354 mm	0
1954	28.2 °C13 May 1954	17.6 °C14 February 1954	22.7 °C	5,191 mm	0
1953	28.9 °C5 March 1953	17.4 °C10 December 1953	23.3 °C	4,834 mm	0
1952	29.8 °C22 February 1952	18.1 °C22 March 1952	23.2 °C	5,280 mm	0
1951	29.7 °C19 March 1951	17.6 °C10 January 1951	23.1 °C	5,409 mm	0
1950	28.5 °C11 September 1950	15.9 °C9 January 1950	22.7 °C	6,035 mm	0
1949	29.7 °C13 February 1949	16.6 °C25 January 1949	23.0 °C	5,070 mm	0
1948	28.5 °C13 February 1948	15.9 °C14 February 1948	22.8 °C	5,928 mm	0
1947	29.1 °C15 March 1947	17.1 °C2 January 1947	22.6 °C	5,625 mm	0
1946	28.8 °C7 February 1946	17.0 °C7 February 1946	22.7 °C	6,035 mm	0
1945	29.3 °C16 March 1945	15.9 °C11 January 1945	22.6 °C	5,303 mm	0
1944	30.1 °C9 April 1944	16.0 °C12 January 1944	23.1 °C	4,705 mm	1
1943	28.1 °C14 March 1943	16.3 °C11 March 1943	22.5 °C	5,541 mm	0
1942	28.3 °C26 August 1942	16.8 °C5 August 1942	22.7 °C	5,955 mm	0
1941	30.3 °C22 March 1941	17.3 °C17 December 1941	23.3 °C	4,388 mm	2
1940	28.4 °C7 July 1940	17.3 °C5 January 1940	22.7 °C	4,846 mm	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

28.0 °C

+0.4 °C

Hot days (≥ 30 °C)

26 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

5239 mm

+106 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	28.5 °C	+0.6 °C	114 mm	-11 mm
Feb	29.5 °C	+1.1 °C	119 mm	-43 mm
Mar	28.3 °C	+0.1 °C	300 mm	+19 mm
Apr	28.0 °C	+0.3 °C	543 mm	+41 mm
May	27.5 °C	-0.1 °C	723 mm	+72 mm
Jun	27.0 °C	-0.3 °C	585 mm	-70 mm
Jul	27.8 °C	+0.4 °C	500 mm	-114 mm
Aug	27.3 °C	-0.1 °C	502 mm	-86 mm
Sep	28.1 °C	+0.8 °C	598 mm	+93 mm
Oct	27.6 °C	+0.5 °C	654 mm	+177 mm
Nov	27.9 °C	+0.7 °C	424 mm	+49 mm
Dec	28.5 °C	+1.0 °C	176 mm	-22 mm

The year's extremes

Hottest day

31.9 °C

1 Feb 2025

Coldest day

18.0 °C

22 Jan 2025

Wettest day

89.7 mm

10 Apr 2025

Windiest day

11.0 km/h

30 Sep 2025

Strongest gust

31.7 km/h

30 Sep 2025

Hottest feels-like

39.3 °C

23 Mar 2025

Coldest feels-like

19.1 °C

22 Jan 2025

Sunniest day

12.0 h

19 Mar 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 Martín?

San Martín has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 23.9 °C and it receives 5,133 mm of precipitation per year.

What is the hottest day ever recorded in San Martín?

The hottest day measured in San Martín between 1940 and 2025 was 26 March 2016, reaching 36.3 °C.

What is the coldest day in San Martín?

The coldest day measured in San Martín between 1940 and 2025 was 15 February 1963, at 15.0 °C.

Does it snow in San Martín?

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

Has the climate of San Martín warmed?

Yes: San Martín warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in San Martín?

The wettest day measured in San Martín between 1940 and 2025 was 29 May 2021, with 169 mm of rain in 24 hours.

What was the windiest day in San Martín?

The windiest day measured in San Martín between 1940 and 2025 was 5 December 1989, with winds reaching 12.9 km/h.

What is the warmest month in San Martín?

The warmest month in San Martín is March (24.4 °C on average); the coldest is September (23.6 °C).

How much does it rain in San Martín?

San Martín receives on average 5,133 mm of precipitation per year, spread over about 340 rainy days.

Is it sunny in San Martín?

San Martín gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.

Are there tropical nights in San Martín?

Yes: San Martín has on average 287 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in San Martín?

In San Martín, between 1940 and 2025, the highest apparent temperature reached 42.2 °C on 18 March 2024, and the lowest was 15.1 °C on 15 February 1963.

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