San Miguel climate — normals and trends

Q: What is the climate of San Miguel?

San Miguel has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.7 °C and it receives 1,766 mm of precipitation per year.

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

The hottest day measured in San Miguel between 1940 and 2025 was 6 May 2023, reaching 40.4 °C.

Q: What is the coldest day in San Miguel?

The coldest day measured in San Miguel between 1940 and 2025 was 6 December 1945, at 11.1 °C.

Q: Does it snow in San Miguel?

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

Q: Has the climate of San Miguel warmed?

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

Q: What is the wettest day in San Miguel?

The wettest day measured in San Miguel between 1940 and 2025 was 20 September 2006, with 181 mm of rain in 24 hours.

Q: What was the windiest day in San Miguel?

The windiest day measured in San Miguel between 1940 and 2025 was 25 February 1967, with winds reaching 25.7 km/h.

Q: What is the warmest month in San Miguel?

The warmest month in San Miguel is April (28.8 °C on average); the coldest is November (25.3 °C).

Q: How much does it rain in San Miguel?

San Miguel receives on average 1,766 mm of precipitation per year, spread over about 168 rainy days.

Q: Is it sunny in San Miguel?

San Miguel gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.

San Miguel (El Salvador) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.7 °C and it receives 1,766 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 (28.8 °C on average) and the coldest is November (25.3 °C). Rainfall peaks in September.

San Miguel averages 0 frost days, 311 hot days (≥ 30 °C) and 168 rainy days per year.

San Miguel 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 40.4 °C (on 6 May 2023) and the coldest 11.1 °C (on 6 December 1945).

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 MiguelSan Miguel Department

coords: 13.48°, -88.18°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthAprilColdest monthNovemberWettest monthSeptemberDriest monthJanuary

Mean daily temperature

26.7°C

Average daily high

32.5°C

Average daily low

22.1°C

Annual rainfall

1,766mm

Sunshine / day

11.0h

Mean relative humidity

71%

Average peak wind

9.6km/h

Seasonal range

3.5°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

311 d/yr

Rainy days (≥ 1 mm)

168 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.6 °C

Average feels-like low

25.5 °C

Average peak gust

29.9 km/h

Tropical nights (≥ 20 °C)

324 d/yr

Solar radiation

21.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.1 °C

since 1940

+0.3 °C per decade · r² = 0.72 · 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

40.4 °C

6 May 2023

Coldest day

11.1 °C

6 December 1945

Wettest day

181 mm

20 September 2006

Windiest day

25.7 km/h

25 February 1967

Strongest gust

70.9 km/h

10 October 2022

Hottest feels-like

44.3 °C

17 May 2020

Coldest feels-like

9.7 °C

6 December 1945

Sunniest day

12.4 h

7 June 1946

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	38.4 °C21 March 2025	19.5 °C18 January 2025	28.3 °C	1,515 mm	357
2024	40.2 °C14 April 2024	18.3 °C8 February 2024	28.1 °C	2,339 mm	338
2023	40.4 °C6 May 2023	17.8 °C19 January 2023	28.4 °C	1,525 mm	358
2022	38.7 °C20 March 2022	18.5 °C15 December 2022	27.3 °C	2,174 mm	344
2021	39.2 °C1 April 2021	18.1 °C5 February 2021	27.8 °C	1,969 mm	355
2020	39.8 °C19 February 2020	17.7 °C10 December 2020	27.6 °C	2,222 mm	334
2019	38.9 °C30 April 2019	18.5 °C27 December 2019	28.1 °C	1,469 mm	357
2018	39.2 °C20 April 2018	18.2 °C14 December 2018	27.8 °C	1,483 mm	350
2017	39.1 °C7 April 2017	17.9 °C19 November 2017	27.5 °C	1,998 mm	338
2016	40.0 °C9 April 2016	15.7 °C23 November 2016	27.8 °C	1,521 mm	355
2015	40.0 °C20 August 2015	18.8 °C30 November 2015	28.5 °C	1,410 mm	351
2014	38.7 °C26 March 2014	18.0 °C17 January 2014	27.7 °C	1,482 mm	348
2013	38.1 °C29 March 2013	17.5 °C4 March 2013	27.4 °C	1,483 mm	346
2012	38.1 °C4 March 2012	15.9 °C24 December 2012	27.1 °C	1,529 mm	351
2011	38.2 °C4 April 2011	16.6 °C3 December 2011	27.0 °C	2,003 mm	333
2010	38.1 °C23 March 2010	16.2 °C16 December 2010	27.0 °C	2,774 mm	316
2009	38.9 °C21 April 2009	17.4 °C25 December 2009	27.4 °C	1,466 mm	351
2008	37.2 °C18 April 2008	17.5 °C29 November 2008	26.6 °C	2,488 mm	309
2007	38.7 °C4 March 2007	16.3 °C11 November 2007	26.9 °C	1,878 mm	324
2006	39.0 °C31 March 2006	14.6 °C23 November 2006	27.2 °C	1,800 mm	343
2005	39.0 °C18 April 2005	15.7 °C24 November 2005	27.0 °C	2,374 mm	326
2004	39.2 °C10 May 2004	16.7 °C10 November 2004	27.0 °C	1,727 mm	358
2003	39.1 °C10 March 2003	16.9 °C8 December 2003	27.0 °C	1,769 mm	339
2002	39.7 °C6 May 2002	16.6 °C10 January 2002	27.5 °C	1,354 mm	332
2001	38.2 °C30 April 2001	17.2 °C26 January 2001	26.9 °C	1,347 mm	323
2000	37.9 °C9 April 2000	15.0 °C6 January 2000	26.6 °C	1,489 mm	326
1999	38.5 °C18 April 1999	14.5 °C29 December 1999	26.2 °C	2,336 mm	272
1998	38.7 °C15 May 1998	15.5 °C4 February 1998	27.3 °C	2,241 mm	319
1997	38.4 °C5 May 1997	15.8 °C16 December 1997	27.5 °C	1,204 mm	331
1996	37.3 °C28 March 1996	13.8 °C14 January 1996	26.3 °C	2,293 mm	299
1995	37.4 °C3 March 1995	16.8 °C10 February 1995	26.7 °C	2,449 mm	307
1994	39.2 °C18 April 1994	18.1 °C27 January 1994	27.3 °C	1,231 mm	340
1993	37.7 °C22 March 1993	15.2 °C20 December 1993	26.7 °C	1,890 mm	329
1992	40.2 °C10 May 1992	16.6 °C20 December 1992	27.1 °C	1,619 mm	338
1991	38.0 °C28 February 1991	17.5 °C24 December 1991	27.3 °C	1,154 mm	338
1990	39.7 °C8 April 1990	17.8 °C1 January 1990	27.3 °C	1,485 mm	327
1989	38.1 °C7 April 1989	14.4 °C27 December 1989	26.7 °C	1,647 mm	319
1988	39.1 °C24 March 1988	16.4 °C19 December 1988	26.9 °C	1,971 mm	319
1987	38.8 °C22 April 1987	16.5 °C7 January 1987	27.7 °C	1,359 mm	359
1986	36.9 °C7 April 1986	15.5 °C15 March 1986	26.6 °C	1,092 mm	329
1985	38.3 °C26 March 1985	17.3 °C6 January 1985	26.6 °C	1,595 mm	327
1984	37.4 °C30 March 1984	16.6 °C13 November 1984	26.2 °C	1,702 mm	296
1983	37.5 °C12 May 1983	17.5 °C21 March 1983	27.4 °C	1,398 mm	344
1982	38.3 °C1 April 1982	17.7 °C21 December 1982	27.1 °C	1,515 mm	330
1981	38.0 °C12 April 1981	14.0 °C1 January 1981	26.6 °C	1,844 mm	305
1980	38.7 °C28 March 1980	14.9 °C29 December 1980	27.0 °C	1,688 mm	332
1979	37.9 °C12 April 1979	17.4 °C20 December 1979	26.8 °C	1,981 mm	304
1978	37.4 °C16 March 1978	16.6 °C7 February 1978	26.5 °C	1,933 mm	318
1977	37.2 °C7 March 1977	15.7 °C3 January 1977	26.8 °C	1,505 mm	320
1976	36.5 °C23 March 1976	15.3 °C10 February 1976	26.5 °C	1,525 mm	329
1975	38.8 °C22 April 1975	13.9 °C24 December 1975	26.4 °C	2,004 mm	305
1974	37.6 °C25 April 1974	17.0 °C6 December 1974	26.4 °C	1,409 mm	309
1973	38.5 °C19 February 1973	16.3 °C19 December 1973	26.5 °C	2,291 mm	294
1972	38.9 °C2 April 1972	15.8 °C22 February 1972	27.0 °C	1,541 mm	340
1971	37.0 °C8 March 1971	17.1 °C24 December 1971	26.2 °C	1,838 mm	292
1970	39.2 °C23 March 1970	16.3 °C18 November 1970	26.3 °C	2,055 mm	287
1969	38.3 °C31 March 1969	17.3 °C22 November 1969	26.3 °C	2,667 mm	251
1968	38.5 °C2 April 1968	16.6 °C10 February 1968	26.3 °C	2,006 mm	308
1967	38.1 °C6 May 1967	17.2 °C18 March 1967	27.1 °C	1,131 mm	326
1966	38.6 °C29 April 1966	16.9 °C28 January 1966	26.5 °C	1,863 mm	308
1965	37.9 °C21 March 1965	16.0 °C31 January 1965	26.7 °C	1,457 mm	330
1964	37.3 °C30 March 1964	17.5 °C20 January 1964	26.5 °C	1,434 mm	317
1963	37.5 °C27 April 1963	15.2 °C4 January 1963	26.3 °C	1,818 mm	316
1962	37.7 °C2 April 1962	15.4 °C19 December 1962	25.9 °C	1,751 mm	305
1961	37.8 °C19 April 1961	17.3 °C3 December 1961	25.9 °C	1,564 mm	285
1960	35.9 °C1 March 1960	15.5 °C4 December 1960	25.4 °C	1,860 mm	293
1959	36.9 °C14 April 1959	15.7 °C30 November 1959	25.7 °C	1,539 mm	293
1958	38.3 °C12 May 1958	15.6 °C5 February 1958	26.3 °C	2,079 mm	319
1957	36.5 °C6 May 1957	15.4 °C11 December 1957	26.1 °C	1,880 mm	322
1956	37.2 °C21 April 1956	12.6 °C15 January 1956	25.5 °C	1,663 mm	264
1955	37.5 °C27 March 1955	15.4 °C27 December 1955	25.7 °C	1,957 mm	217
1954	37.1 °C3 March 1954	16.2 °C8 December 1954	25.9 °C	2,067 mm	257
1953	37.9 °C22 April 1953	15.2 °C12 January 1953	26.5 °C	2,036 mm	305
1952	36.6 °C6 April 1952	15.9 °C28 February 1952	26.1 °C	1,885 mm	302
1951	37.3 °C20 March 1951	15.2 °C12 January 1951	26.3 °C	1,661 mm	314
1950	36.4 °C16 April 1950	14.1 °C29 November 1950	25.4 °C	2,274 mm	238
1949	36.7 °C15 March 1949	15.8 °C2 January 1949	25.6 °C	1,806 mm	247
1948	37.1 °C3 April 1948	16.3 °C16 January 1948	25.8 °C	2,139 mm	212
1947	37.4 °C27 April 1947	16.6 °C16 February 1947	25.8 °C	1,762 mm	209
1946	35.9 °C19 March 1946	17.2 °C15 December 1946	26.0 °C	1,272 mm	277
1945	35.7 °C21 April 1945	11.1 °C6 December 1945	25.5 °C	2,235 mm	233
1944	36.4 °C6 March 1944	13.9 °C23 November 1944	25.6 °C	1,503 mm	261
1943	36.0 °C15 April 1943	12.9 °C21 December 1943	25.5 °C	1,489 mm	275
1942	38.7 °C31 March 1942	17.5 °C25 January 1942	25.7 °C	2,073 mm	190
1941	38.4 °C26 April 1941	14.9 °C12 January 1941	26.5 °C	1,103 mm	312
1940	36.4 °C14 March 1940	17.0 °C23 February 1940	26.1 °C	1,493 mm	274

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

34.0 °C

+1.5 °C

Hot days (≥ 30 °C)

357 d/yr

+46

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1515 mm

-251 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	34.7 °C	+1.5 °C	5 mm	+3 mm
Feb	35.8 °C	+1.5 °C	4 mm	+2 mm
Mar	35.8 °C	+0.8 °C	12 mm	+2 mm
Apr	36.3 °C	+1.4 °C	24 mm	-23 mm
May	35.3 °C	+2.3 °C	82 mm	-141 mm
Jun	32.8 °C	+1.6 °C	341 mm	+32 mm
Jul	34.3 °C	+2.1 °C	129 mm	-74 mm
Aug	34.0 °C	+2.1 °C	143 mm	-114 mm
Sep	32.4 °C	+1.8 °C	352 mm	-5 mm
Oct	31.2 °C	+1.0 °C	360 mm	+76 mm
Nov	32.1 °C	+1.3 °C	23 mm	-42 mm
Dec	33.0 °C	+0.9 °C	42 mm	+33 mm

The year's extremes

Hottest day

38.4 °C

21 Mar 2025

Coldest day

19.5 °C

18 Jan 2025

Wettest day

43.0 mm

26 Jun 2025

Windiest day

22.7 km/h

22 Jan 2025

Strongest gust

58.7 km/h

22 Jan 2025

Hottest feels-like

43.1 °C

31 May 2025

Coldest feels-like

20.5 °C

18 Jan 2025

Sunniest day

12.2 h

31 May 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 Miguel?

San Miguel has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.7 °C and it receives 1,766 mm of precipitation per year.

What is the hottest day ever recorded in San Miguel?

The hottest day measured in San Miguel between 1940 and 2025 was 6 May 2023, reaching 40.4 °C.

What is the coldest day in San Miguel?

The coldest day measured in San Miguel between 1940 and 2025 was 6 December 1945, at 11.1 °C.

Does it snow in San Miguel?

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

Has the climate of San Miguel warmed?

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

What is the wettest day in San Miguel?

The wettest day measured in San Miguel between 1940 and 2025 was 20 September 2006, with 181 mm of rain in 24 hours.

What was the windiest day in San Miguel?

The windiest day measured in San Miguel between 1940 and 2025 was 25 February 1967, with winds reaching 25.7 km/h.

What is the warmest month in San Miguel?

The warmest month in San Miguel is April (28.8 °C on average); the coldest is November (25.3 °C).

How much does it rain in San Miguel?

San Miguel receives on average 1,766 mm of precipitation per year, spread over about 168 rainy days.

Is it sunny in San Miguel?

San Miguel gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.

Are there tropical nights in San Miguel?

Yes: San Miguel has on average 324 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in San Miguel?

In San Miguel, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 17 May 2020, and the lowest was 9.7 °C on 6 December 1945.

Compare San Miguel with another city

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