Chalchuapa climate — normals and trends

Q: What is the climate of Chalchuapa?

Chalchuapa has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.5 °C and it receives 1,489 mm of precipitation per year.

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

The hottest day measured in Chalchuapa between 1940 and 2025 was 6 April 2017, reaching 35.2 °C.

Q: What is the coldest day in Chalchuapa?

The coldest day measured in Chalchuapa between 1940 and 2025 was 15 January 1956, at 8.1 °C.

Q: Does it snow in Chalchuapa?

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

Q: Has the climate of Chalchuapa warmed?

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

Q: What is the wettest day in Chalchuapa?

The wettest day measured in Chalchuapa between 1940 and 2025 was 4 September 1969, with 298 mm of rain in 24 hours.

Q: What was the windiest day in Chalchuapa?

The windiest day measured in Chalchuapa between 1940 and 2025 was 3 January 2008, with winds reaching 32.1 km/h.

Q: What is the warmest month in Chalchuapa?

The warmest month in Chalchuapa is April (23.7 °C on average); the coldest is January (21.2 °C).

Q: How much does it rain in Chalchuapa?

Chalchuapa receives on average 1,489 mm of precipitation per year, spread over about 165 rainy days.

Q: Is it sunny in Chalchuapa?

Chalchuapa gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

Chalchuapa (El Salvador) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 22.5 °C and it receives 1,489 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 (23.7 °C on average) and the coldest is January (21.2 °C). Rainfall peaks in September.

Chalchuapa averages 0 frost days, 70 hot days (≥ 30 °C) and 165 rainy days per year.

Chalchuapa has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.2 °C (on 6 April 2017) and the coldest 8.1 °C (on 15 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

ChalchuapaSanta Ana Department

coords: 13.99°, -89.68°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthJanuaryWettest monthSeptemberDriest monthJanuary

Mean daily temperature

22.5°C

Average daily high

28.2°C

Average daily low

18.2°C

Annual rainfall

1,489mm

Sunshine / day

10.7h

Mean relative humidity

75%

Average peak wind

10.7km/h

Seasonal range

2.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

70 d/yr

Rainy days (≥ 1 mm)

165 d/yr

Annual snowfall

0.0 cm

Average feels-like high

30.8 °C

Average feels-like low

19.8 °C

Average peak gust

36.9 km/h

Tropical nights (≥ 20 °C)

51 d/yr

Solar radiation

20.2 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.1 °C

since 1940

+0.3 °C per decade · r² = 0.76 · 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

35.2 °C

6 April 2017

Coldest day

8.1 °C

15 January 1956

Wettest day

298 mm

4 September 1969

Windiest day

32.1 km/h

3 January 2008

Strongest gust

101.2 km/h

3 January 2008

Hottest feels-like

38.8 °C

6 April 2009

Coldest feels-like

6.2 °C

27 December 1989

Sunniest day

12.2 h

1 July 2022

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	33.6 °C20 March 2025	14.1 °C18 January 2025	24.1 °C	1,414 mm	179
2024	34.4 °C20 March 2024	12.9 °C8 February 2024	24.0 °C	1,820 mm	192
2023	35.1 °C6 May 2023	12.4 °C16 January 2023	24.2 °C	1,353 mm	209
2022	34.3 °C19 April 2022	14.1 °C4 February 2022	23.6 °C	1,969 mm	152
2021	34.6 °C31 March 2021	11.8 °C5 February 2021	23.9 °C	1,452 mm	193
2020	35.2 °C5 March 2020	13.8 °C23 January 2020	23.7 °C	1,822 mm	183
2019	34.8 °C2 April 2019	14.1 °C27 December 2019	23.9 °C	1,454 mm	217
2018	34.5 °C12 March 2018	12.1 °C12 January 2018	23.6 °C	1,440 mm	188
2017	35.2 °C6 April 2017	12.9 °C24 January 2017	23.6 °C	1,603 mm	179
2016	34.8 °C25 March 2016	12.3 °C25 January 2016	23.8 °C	1,005 mm	185
2015	33.9 °C6 August 2015	14.0 °C28 January 2015	23.9 °C	1,193 mm	186
2014	34.2 °C8 April 2014	11.9 °C17 January 2014	23.4 °C	1,353 mm	150
2013	33.2 °C1 April 2013	12.5 °C4 March 2013	23.2 °C	1,334 mm	114
2012	33.1 °C8 April 2012	11.4 °C25 December 2012	23.0 °C	1,340 mm	114
2011	34.3 °C3 April 2011	11.9 °C8 January 2011	22.9 °C	2,016 mm	100
2010	34.3 °C16 March 2010	9.2 °C16 December 2010	22.9 °C	2,295 mm	113
2009	34.8 °C6 April 2009	12.3 °C23 December 2009	23.2 °C	1,372 mm	141
2008	32.5 °C29 April 2008	11.9 °C29 November 2008	22.2 °C	2,055 mm	58
2007	33.4 °C23 April 2007	12.4 °C5 December 2007	22.7 °C	1,600 mm	107
2006	32.1 °C18 March 2006	11.3 °C24 November 2006	22.7 °C	1,474 mm	67
2005	34.3 °C14 April 2005	9.9 °C25 November 2005	22.8 °C	1,843 mm	78
2004	32.7 °C28 April 2004	12.0 °C25 January 2004	22.8 °C	1,196 mm	82
2003	34.4 °C7 March 2003	12.5 °C20 December 2003	22.9 °C	1,407 mm	89
2002	33.8 °C28 April 2002	10.5 °C10 January 2002	23.1 °C	1,076 mm	105
2001	33.3 °C7 May 2001	12.2 °C24 January 2001	22.4 °C	1,158 mm	49
2000	33.3 °C26 April 2000	11.3 °C28 January 2000	22.3 °C	1,337 mm	36
1999	33.2 °C6 April 1999	9.6 °C29 December 1999	22.0 °C	1,935 mm	31
1998	34.3 °C21 April 1998	12.2 °C3 February 1998	23.1 °C	1,753 mm	107
1997	33.4 °C15 March 1997	11.1 °C16 December 1997	23.2 °C	1,271 mm	105
1996	31.8 °C1 April 1996	10.3 °C14 January 1996	22.3 °C	1,753 mm	28
1995	31.8 °C26 March 1995	12.8 °C12 February 1995	22.5 °C	2,114 mm	31
1994	32.5 °C3 April 1994	13.2 °C5 March 1994	22.9 °C	1,118 mm	87
1993	32.5 °C26 April 1993	11.0 °C10 January 1993	22.7 °C	1,537 mm	62
1992	34.0 °C12 May 1992	10.8 °C8 February 1992	22.8 °C	1,291 mm	80
1991	33.4 °C18 March 1991	12.2 °C13 February 1991	22.8 °C	1,191 mm	77
1990	33.3 °C10 April 1990	13.9 °C10 December 1990	22.7 °C	1,246 mm	62
1989	32.2 °C19 April 1989	8.5 °C27 December 1989	22.2 °C	1,668 mm	44
1988	33.7 °C6 April 1988	12.7 °C27 January 1988	22.5 °C	1,571 mm	50
1987	34.0 °C20 April 1987	10.4 °C7 January 1987	23.1 °C	952 mm	113
1986	32.9 °C15 April 1986	10.4 °C29 January 1986	22.3 °C	929 mm	34
1985	32.1 °C24 March 1985	11.0 °C28 January 1985	22.3 °C	1,452 mm	22
1984	31.9 °C30 March 1984	11.9 °C24 November 1984	22.0 °C	1,665 mm	14
1983	33.6 °C9 May 1983	11.0 °C21 March 1983	22.8 °C	1,377 mm	43
1982	33.3 °C1 April 1982	13.4 °C19 December 1982	22.9 °C	1,344 mm	77
1981	32.5 °C1 April 1981	9.7 °C1 January 1981	22.4 °C	1,698 mm	47
1980	32.1 °C27 March 1980	11.7 °C29 December 1980	22.7 °C	1,350 mm	55
1979	32.3 °C14 April 1979	12.6 °C21 December 1979	22.6 °C	1,594 mm	27
1978	33.8 °C14 May 1978	10.5 °C7 February 1978	22.5 °C	1,466 mm	54
1977	32.5 °C22 March 1977	11.2 °C20 January 1977	22.6 °C	1,156 mm	64
1976	31.8 °C14 September 1976	12.2 °C19 January 1976	22.1 °C	1,264 mm	26
1975	33.0 °C15 April 1975	11.3 °C24 December 1975	22.1 °C	1,578 mm	34
1974	31.3 °C22 February 1974	12.7 °C15 February 1974	22.2 °C	1,300 mm	32
1973	33.3 °C2 April 1973	11.1 °C19 December 1973	22.3 °C	1,762 mm	70
1972	32.7 °C10 April 1972	12.6 °C15 February 1972	22.8 °C	1,121 mm	57
1971	32.9 °C1 May 1971	12.3 °C15 February 1971	22.0 °C	1,469 mm	30
1970	32.9 °C24 April 1970	10.6 °C5 February 1970	22.1 °C	1,649 mm	47
1969	34.1 °C9 May 1969	13.0 °C14 November 1969	22.3 °C	2,405 mm	53
1968	31.5 °C2 April 1968	11.2 °C11 February 1968	21.8 °C	1,593 mm	26
1967	32.3 °C22 May 1967	12.0 °C18 March 1967	22.2 °C	1,113 mm	32
1966	32.7 °C28 April 1966	12.0 °C28 January 1966	22.0 °C	1,508 mm	35
1965	31.9 °C17 April 1965	11.3 °C30 January 1965	22.2 °C	1,356 mm	42
1964	32.7 °C29 March 1964	12.4 °C1 January 1964	22.2 °C	1,219 mm	41
1963	32.1 °C24 April 1963	9.7 °C26 December 1963	22.2 °C	1,308 mm	62
1962	31.7 °C10 April 1962	11.1 °C4 January 1962	21.8 °C	1,319 mm	27
1961	33.3 °C10 April 1961	12.4 °C27 December 1961	21.8 °C	1,285 mm	29
1960	31.7 °C28 March 1960	10.5 °C31 January 1960	21.4 °C	1,785 mm	24
1959	31.1 °C9 April 1959	12.2 °C30 November 1959	21.8 °C	1,422 mm	45
1958	33.3 °C7 April 1958	10.7 °C6 February 1958	22.2 °C	1,504 mm	50
1957	31.4 °C5 May 1957	10.4 °C11 December 1957	21.9 °C	1,362 mm	19
1956	32.0 °C18 April 1956	8.1 °C15 January 1956	21.3 °C	1,500 mm	23
1955	33.0 °C29 April 1955	12.7 °C21 January 1955	21.4 °C	1,762 mm	33
1954	32.2 °C14 March 1954	11.7 °C22 December 1954	21.5 °C	1,859 mm	17
1953	32.4 °C17 April 1953	11.0 °C11 January 1953	22.3 °C	1,459 mm	38
1952	32.4 °C16 March 1952	12.3 °C6 February 1952	22.0 °C	1,487 mm	33
1951	33.2 °C8 May 1951	10.8 °C5 February 1951	22.1 °C	1,394 mm	33
1950	31.8 °C16 April 1950	10.7 °C29 November 1950	21.1 °C	1,892 mm	11
1949	31.3 °C11 March 1949	11.8 °C3 January 1949	21.5 °C	1,704 mm	19
1948	32.0 °C2 April 1948	11.2 °C16 January 1948	21.9 °C	1,739 mm	23
1947	32.8 °C7 April 1947	11.7 °C17 February 1947	21.9 °C	1,773 mm	43
1946	33.1 °C31 March 1946	13.6 °C12 December 1946	21.9 °C	1,097 mm	31
1945	30.6 °C4 May 1945	8.8 °C6 December 1945	21.4 °C	1,736 mm	7
1944	31.4 °C18 April 1944	10.2 °C8 January 1944	21.5 °C	1,345 mm	15
1943	32.8 °C14 April 1943	9.0 °C22 December 1943	21.3 °C	1,486 mm	6
1942	32.3 °C28 March 1942	12.2 °C27 January 1942	21.7 °C	1,415 mm	28
1941	33.3 °C22 March 1941	10.0 °C16 January 1941	22.2 °C	997 mm	65
1940	31.4 °C27 August 1940	12.4 °C24 February 1940	21.8 °C	1,244 mm	19

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

29.9 °C

+1.7 °C

Hot days (≥ 30 °C)

179 d/yr

+109

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1414 mm

-75 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	29.4 °C	+1.6 °C	1 mm	-3 mm
Feb	30.3 °C	+1.6 °C	20 mm	+15 mm
Mar	31.0 °C	+1.3 °C	15 mm	-2 mm
Apr	31.0 °C	+1.1 °C	35 mm	-21 mm
May	30.6 °C	+1.8 °C	113 mm	-79 mm
Jun	28.7 °C	+1.2 °C	432 mm	+131 mm
Jul	31.0 °C	+2.5 °C	46 mm	-99 mm
Aug	30.7 °C	+2.2 °C	131 mm	-61 mm
Sep	29.2 °C	+1.9 °C	310 mm	-16 mm
Oct	28.5 °C	+1.4 °C	258 mm	+57 mm
Nov	29.0 °C	+1.6 °C	24 mm	-17 mm
Dec	29.0 °C	+1.5 °C	30 mm	+20 mm

The year's extremes

Hottest day

33.6 °C

20 Mar 2025

Coldest day

14.1 °C

18 Jan 2025

Wettest day

43.1 mm

28 Jun 2025

Windiest day

28.2 km/h

25 Jan 2025

Strongest gust

84.2 km/h

25 Jan 2025

Hottest feels-like

37.9 °C

13 May 2025

Coldest feels-like

14.1 °C

18 Jan 2025

Sunniest day

12.2 h

15 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 Chalchuapa?

Chalchuapa has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.5 °C and it receives 1,489 mm of precipitation per year.

What is the hottest day ever recorded in Chalchuapa?

The hottest day measured in Chalchuapa between 1940 and 2025 was 6 April 2017, reaching 35.2 °C.

What is the coldest day in Chalchuapa?

The coldest day measured in Chalchuapa between 1940 and 2025 was 15 January 1956, at 8.1 °C.

Does it snow in Chalchuapa?

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

Has the climate of Chalchuapa warmed?

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

What is the wettest day in Chalchuapa?

The wettest day measured in Chalchuapa between 1940 and 2025 was 4 September 1969, with 298 mm of rain in 24 hours.

What was the windiest day in Chalchuapa?

The windiest day measured in Chalchuapa between 1940 and 2025 was 3 January 2008, with winds reaching 32.1 km/h.

What is the warmest month in Chalchuapa?

The warmest month in Chalchuapa is April (23.7 °C on average); the coldest is January (21.2 °C).

How much does it rain in Chalchuapa?

Chalchuapa receives on average 1,489 mm of precipitation per year, spread over about 165 rainy days.

Is it sunny in Chalchuapa?

Chalchuapa gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.

Are there tropical nights in Chalchuapa?

Yes: Chalchuapa has on average 51 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Chalchuapa?

In Chalchuapa, between 1940 and 2025, the highest apparent temperature reached 38.8 °C on 6 April 2009, and the lowest was 6.2 °C on 27 December 1989.

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