Acajutla/Sonsonate climate by month
Averages and records for each calendar month at Acajutla/Sonsonate, El Salvador, from 1962 to 2025. The warmest month is April, averaging 33.7°C; the coolest is September at 32.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 32.6°C | 22.4°C | 38.5°C4 January 1983 | 17.2°C29 January 1985 | 30 / 52 |
| February | 33.0°C | 23.0°C | 39.5°C15 February 1985 | 16.1°C11 February 1981 | 28 / 53 |
| March | 33.3°C | 23.7°C | 40.2°C10 March 1991 | 17.8°C1 March 1963 | 34 / 49 |
| April | 33.7°C | 24.8°C | 39.3°C22 April 1991 | 17.4°C10 April 1982 | 31 / 49 |
| May | 32.9°C | 24.6°C | 39.3°C17 May 1998 | 18.9°C30 May 1963 | 36 / 52 |
| June | 32.6°C | 23.8°C | 38.2°C1 June 1992 | 19.5°C14 June 1971 | 30 / 52 |
| July | 32.8°C | 23.5°C | 38.1°C16 July 1989 | 18.2°C5 July 1983 | 33 / 52 |
| August | 32.8°C | 23.5°C | 38.0°C4 August 1992 | 16.6°C3 August 1982 | 36 / 52 |
| September | 32.0°C | 23.4°C | 36.5°C20 September 1987 | 17.8°C15 September 1983 | 33 / 51 |
| October | 32.2°C | 23.3°C | 38.5°C19 October 1993 | 17.0°C14 October 1983 | 35 / 52 |
| November | 32.8°C | 22.9°C | 38.0°C22 November 1984 | 15.6°C19 November 1978 | 32 / 52 |
| December | 32.7°C | 22.7°C | 38.2°C7 December 1984 | 16.9°C30 December 1980 | 29 / 51 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 28 to 36 years each.
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Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.