Comitán climate — normals and trends

Q: What is the climate of Comitán?

Comitán has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 20.0 °C and it receives 1,389 mm of precipitation per year.

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

The hottest day measured in Comitán between 1940 and 2025 was 7 May 2024, reaching 36.7 °C.

Q: What is the coldest day in Comitán?

The coldest day measured in Comitán between 1940 and 2025 was 9 January 1956, at 4.9 °C.

Q: Does it snow in Comitán?

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

Q: Has the climate of Comitán warmed?

Yes: Comitán warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Comitán?

The wettest day measured in Comitán between 1940 and 2025 was 17 September 2025, with 150 mm of rain in 24 hours.

Q: What was the windiest day in Comitán?

The windiest day measured in Comitán between 1940 and 2025 was 29 January 1964, with winds reaching 29.3 km/h.

Q: What is the warmest month in Comitán?

The warmest month in Comitán is April (21.8 °C on average); the coldest is January (18.0 °C).

Q: How much does it rain in Comitán?

Comitán receives on average 1,389 mm of precipitation per year, spread over about 130 rainy days.

Q: Is it sunny in Comitán?

Comitán gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Comitán (Mexico) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 20.0 °C and it receives 1,389 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 April (21.8 °C on average) and the coldest is January (18.0 °C). Rainfall peaks in September.

Comitán averages 0 frost days, 20 hot days (≥ 30 °C) and 130 rainy days per year.

Comitán has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.7 °C (on 7 May 2024) and the coldest 4.9 °C (on 9 January 1956).

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

ComitánChiapas

coords: 16.24°, -92.14°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthJanuaryWettest monthSeptemberDriest monthFebruary

Mean daily temperature

20.0°C

Average daily high

25.8°C

Average daily low

15.4°C

Annual rainfall

1,389mm

Sunshine / day

10.6h

Mean relative humidity

70%

Average peak wind

9.6km/h

Seasonal range

3.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

20 d/yr

Rainy days (≥ 1 mm)

130 d/yr

Annual snowfall

0.0 cm

Average feels-like high

27.4 °C

Average feels-like low

15.7 °C

Average peak gust

30.6 km/h

Tropical nights (≥ 20 °C)

0 d/yr

Solar radiation

20.2 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.3 °C

since 1940

+0.3 °C per decade · r² = 0.82 · 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

36.7 °C

7 May 2024

Coldest day

4.9 °C

9 January 1956

Wettest day

150 mm

17 September 2025

Windiest day

29.3 km/h

29 January 1964

Strongest gust

73.1 km/h

19 February 1972

Hottest feels-like

39.8 °C

7 May 2024

Coldest feels-like

1.2 °C

11 January 1953

Sunniest day

12.7 h

29 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	33.1 °C13 May 2025	11.4 °C17 December 2025	21.4 °C	1,635 mm	61
2024	36.7 °C7 May 2024	8.2 °C7 February 2024	21.8 °C	1,892 mm	96
2023	33.3 °C5 May 2023	7.9 °C19 December 2023	21.6 °C	1,054 mm	56
2022	33.7 °C17 April 2022	9.8 °C20 January 2022	20.8 °C	1,769 mm	39
2021	32.9 °C27 April 2021	8.6 °C3 February 2021	20.8 °C	1,274 mm	22
2020	34.0 °C8 April 2020	9.9 °C20 December 2020	21.2 °C	1,814 mm	66
2019	33.7 °C29 April 2019	10.7 °C22 January 2019	21.4 °C	1,217 mm	70
2018	32.3 °C23 July 2018	7.8 °C22 December 2018	21.1 °C	817 mm	44
2017	32.6 °C27 April 2017	7.2 °C24 January 2017	20.7 °C	1,787 mm	27
2016	34.2 °C11 April 2016	8.5 °C11 February 2016	21.3 °C	1,215 mm	71
2015	33.5 °C22 April 2015	8.4 °C29 January 2015	21.5 °C	1,337 mm	62
2014	33.8 °C29 March 2014	8.1 °C16 January 2014	20.9 °C	1,517 mm	54
2013	33.3 °C1 April 2013	7.3 °C3 March 2013	21.2 °C	1,586 mm	54
2012	32.6 °C8 April 2012	9.0 °C4 January 2012	20.8 °C	1,350 mm	20
2011	32.9 °C3 April 2011	9.2 °C15 January 2011	20.8 °C	1,737 mm	38
2010	33.0 °C24 April 2010	7.3 °C15 December 2010	20.7 °C	2,262 mm	37
2009	32.2 °C5 April 2009	8.1 °C22 January 2009	20.8 °C	1,210 mm	23
2008	32.6 °C24 April 2008	8.6 °C4 January 2008	20.2 °C	1,788 mm	23
2007	32.2 °C24 April 2007	9.1 °C8 November 2007	20.7 °C	1,909 mm	38
2006	32.7 °C28 April 2006	7.1 °C24 November 2006	20.7 °C	1,480 mm	8
2005	31.4 °C20 April 2005	7.9 °C24 November 2005	20.6 °C	1,693 mm	21
2004	32.7 °C7 April 2004	8.6 °C10 November 2004	20.5 °C	998 mm	18
2003	33.7 °C20 April 2003	7.8 °C21 December 2003	20.6 °C	1,389 mm	40
2002	32.9 °C28 April 2002	6.2 °C10 January 2002	20.8 °C	1,236 mm	51
2001	33.1 °C5 May 2001	9.0 °C23 January 2001	20.4 °C	1,188 mm	26
2000	33.3 °C30 March 2000	9.6 °C25 January 2000	20.3 °C	1,425 mm	31
1999	33.5 °C6 April 1999	6.4 °C30 December 1999	19.9 °C	1,615 mm	29
1998	34.7 °C7 May 1998	5.6 °C4 February 1998	21.0 °C	1,749 mm	52
1997	31.4 °C8 April 1997	7.4 °C16 December 1997	20.7 °C	1,244 mm	15
1996	30.4 °C5 April 1996	6.3 °C6 February 1996	20.2 °C	1,393 mm	3
1995	31.0 °C15 February 1995	10.3 °C1 January 1995	20.3 °C	2,153 mm	10
1994	33.7 °C25 March 1994	8.5 °C6 January 1994	20.5 °C	1,089 mm	34
1993	31.4 °C6 May 1993	8.5 °C19 March 1993	20.2 °C	1,313 mm	8
1992	32.9 °C12 May 1992	9.1 °C9 February 1992	20.3 °C	1,494 mm	18
1991	32.5 °C25 April 1991	7.8 °C5 March 1991	20.3 °C	1,096 mm	26
1990	30.3 °C11 April 1990	9.6 °C22 March 1990	20.3 °C	802 mm	2
1989	31.9 °C19 May 1989	5.8 °C27 December 1989	19.6 °C	1,527 mm	8
1988	33.9 °C10 May 1988	8.8 °C28 January 1988	20.1 °C	1,475 mm	28
1987	33.3 °C25 March 1987	7.1 °C28 January 1987	20.2 °C	1,149 mm	19
1986	33.8 °C13 April 1986	6.7 °C28 January 1986	19.9 °C	900 mm	12
1985	32.5 °C28 April 1985	8.2 °C25 January 1985	19.5 °C	1,318 mm	11
1984	32.4 °C28 April 1984	7.7 °C6 January 1984	19.4 °C	1,681 mm	15
1983	32.6 °C20 May 1983	7.6 °C16 January 1983	19.9 °C	1,499 mm	14
1982	31.8 °C2 April 1982	8.9 °C20 January 1982	20.0 °C	1,073 mm	10
1981	30.0 °C3 April 1981	6.3 °C1 January 1981	19.3 °C	1,839 mm	1
1980	29.8 °C11 May 1980	6.1 °C19 December 1980	19.6 °C	1,417 mm	0
1979	29.8 °C3 May 1979	7.6 °C28 December 1979	19.7 °C	1,662 mm	0
1978	31.7 °C13 May 1978	8.3 °C22 October 1978	20.0 °C	1,365 mm	14
1977	32.4 °C15 March 1977	8.9 °C21 January 1977	20.1 °C	1,025 mm	18
1976	30.9 °C23 April 1976	7.1 °C23 January 1976	19.6 °C	1,429 mm	8
1975	33.0 °C1 April 1975	8.6 °C26 February 1975	19.7 °C	1,422 mm	23
1974	30.4 °C10 May 1974	8.5 °C13 February 1974	19.4 °C	1,326 mm	2
1973	33.2 °C22 April 1973	6.4 °C9 December 1973	19.9 °C	1,743 mm	22
1972	33.4 °C8 May 1972	8.2 °C21 February 1972	20.2 °C	1,086 mm	30
1971	32.5 °C1 May 1971	9.0 °C10 April 1971	19.8 °C	896 mm	8
1970	31.5 °C21 April 1970	8.2 °C5 February 1970	19.6 °C	1,310 mm	15
1969	32.5 °C8 May 1969	9.7 °C21 January 1969	19.9 °C	1,730 mm	12
1968	30.7 °C20 April 1968	6.2 °C28 February 1968	19.5 °C	1,088 mm	5
1967	30.9 °C2 June 1967	8.6 °C18 March 1967	19.4 °C	855 mm	4
1966	31.7 °C17 May 1966	7.9 °C21 December 1966	19.2 °C	1,329 mm	3
1965	31.9 °C4 June 1965	6.8 °C19 January 1965	19.6 °C	881 mm	18
1964	30.5 °C23 March 1964	8.2 °C1 January 1964	19.3 °C	1,337 mm	4
1963	31.9 °C24 April 1963	7.3 °C5 February 1963	19.5 °C	1,135 mm	24
1962	30.6 °C25 May 1962	8.2 °C3 January 1962	19.3 °C	1,057 mm	6
1961	31.2 °C27 April 1961	8.6 °C12 February 1961	19.5 °C	1,075 mm	16
1960	32.4 °C1 May 1960	4.9 °C31 January 1960	19.0 °C	1,498 mm	8
1959	30.7 °C22 May 1959	8.4 °C4 December 1959	19.1 °C	1,569 mm	3
1958	32.2 °C10 May 1958	8.9 °C9 January 1958	19.9 °C	1,236 mm	27
1957	30.1 °C18 April 1957	6.8 °C12 December 1957	19.5 °C	1,044 mm	1
1956	31.1 °C18 April 1956	4.9 °C9 January 1956	18.8 °C	1,424 mm	2
1955	31.3 °C26 April 1955	8.4 °C31 January 1955	18.9 °C	1,676 mm	8
1954	30.6 °C21 March 1954	8.0 °C9 February 1954	18.7 °C	2,008 mm	1
1953	32.6 °C19 April 1953	5.3 °C11 January 1953	19.5 °C	1,389 mm	6
1952	31.0 °C20 March 1952	9.0 °C31 January 1952	19.4 °C	1,501 mm	2
1951	30.7 °C8 May 1951	7.0 °C5 February 1951	19.8 °C	1,175 mm	3
1950	30.2 °C18 April 1950	7.4 °C28 November 1950	18.9 °C	1,523 mm	3
1949	30.2 °C23 May 1949	7.7 °C20 November 1949	19.2 °C	1,229 mm	1
1948	28.8 °C17 March 1948	6.9 °C16 January 1948	19.1 °C	1,582 mm	0
1947	30.1 °C28 March 1947	9.2 °C16 February 1947	19.3 °C	1,847 mm	3
1946	30.4 °C28 March 1946	9.3 °C6 December 1946	19.2 °C	1,015 mm	5
1945	30.3 °C3 April 1945	6.0 °C5 December 1945	19.1 °C	1,706 mm	3
1944	30.4 °C16 April 1944	8.3 °C21 January 1944	19.0 °C	1,364 mm	2
1943	29.7 °C14 April 1943	7.9 °C23 February 1943	18.6 °C	1,275 mm	0
1942	30.8 °C3 May 1942	8.4 °C13 January 1942	19.3 °C	1,198 mm	9
1941	33.2 °C20 April 1941	6.9 °C12 February 1941	19.8 °C	861 mm	24
1940	30.6 °C1 May 1940	7.4 °C30 December 1940	19.4 °C	1,194 mm	8

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

27.4 °C

+1.6 °C

Hot days (≥ 30 °C)

61 d/yr

+41

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1635 mm

+246 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	26.1 °C	+1.9 °C	3 mm	-3 mm
Feb	27.8 °C	+2.1 °C	8 mm	+2 mm
Mar	29.9 °C	+2.4 °C	9 mm	-4 mm
Apr	29.2 °C	+0.5 °C	27 mm	-9 mm
May	30.4 °C	+2.6 °C	61 mm	-75 mm
Jun	26.6 °C	+1.1 °C	395 mm	+110 mm
Jul	27.9 °C	+1.8 °C	32 mm	-96 mm
Aug	28.5 °C	+2.0 °C	126 mm	-58 mm
Sep	26.2 °C	+1.3 °C	582 mm	+241 mm
Oct	25.9 °C	+1.5 °C	253 mm	+54 mm
Nov	25.4 °C	+1.3 °C	37 mm	-6 mm
Dec	24.8 °C	+1.0 °C	103 mm	+90 mm

The year's extremes

Hottest day

33.1 °C

13 May 2025

Coldest day

11.4 °C

17 Dec 2025

Wettest day

149.7 mm

17 Sep 2025

Windiest day

22.5 km/h

14 Feb 2025

Strongest gust

58.0 km/h

1 Aug 2025

Hottest feels-like

36.5 °C

8 May 2025

Coldest feels-like

10.4 °C

12 Nov 2025

Sunniest day

12.7 h

16 Jul 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 Comitán?

Comitán has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 20.0 °C and it receives 1,389 mm of precipitation per year.

What is the hottest day ever recorded in Comitán?

The hottest day measured in Comitán between 1940 and 2025 was 7 May 2024, reaching 36.7 °C.

What is the coldest day in Comitán?

The coldest day measured in Comitán between 1940 and 2025 was 9 January 1956, at 4.9 °C.

Does it snow in Comitán?

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

Has the climate of Comitán warmed?

Yes: Comitán warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Comitán?

The wettest day measured in Comitán between 1940 and 2025 was 17 September 2025, with 150 mm of rain in 24 hours.

What was the windiest day in Comitán?

The windiest day measured in Comitán between 1940 and 2025 was 29 January 1964, with winds reaching 29.3 km/h.

What is the warmest month in Comitán?

The warmest month in Comitán is April (21.8 °C on average); the coldest is January (18.0 °C).

How much does it rain in Comitán?

Comitán receives on average 1,389 mm of precipitation per year, spread over about 130 rainy days.

Is it sunny in Comitán?

Comitán gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Are there tropical nights in Comitán?

Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Comitán.

What was the most extreme apparent temperature in Comitán?

In Comitán, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 7 May 2024, and the lowest was 1.2 °C on 11 January 1953.

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