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Weather & Climate in San Salvador El Seco, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Salvador El Seco enjoys a temperate climate with an average annual temperature of 60°F (15°C). Winters average 54°F in January while summers reach 62°F in July / relatively mild seasonal variation. The area gets 361 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 18.2 inches (drier than the 38-inch national average). The city sits at an elevation of 7,995 feet.
Temperature
54°F Jan (12°C)
62°F Jul (17°C)
| Annual Average | 59.5°F |
| 10% above US avg | |
| January Average | 54°F (12°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 361 days/yr |
Geography
| Elevation | 7,995 ft (2,437 m) |
| Area | 100.4 sq mi (260.1 km²) |
| Population Density | 172/sq mi |
| Coordinates | 19.1333°N, 97.6417°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
158 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.
| Sep 19, 2017 | 1 km S of Matzaco, Mexico | M7.1 | 110 km | 48 km |
| Jun 15, 1999 | 1 km SE of Texcala, Mexico | M7.0 | 86 km | 70 km |
| Feb 23, 1994 | 12 km W of San Juan de los Cues, Mexico | M5.8 | 130 km | 73 km |
| May 22, 2009 | 3 km E of Chila de la Sal, Mexico | M5.6 | 142 km | 62 km |
| May 6, 1994 | 7 km NE of San Vicente Boquerón, Mexico | M5.3 | 97 km | 56 km |
| Apr 3, 1997 | 7 km SSE of Piaxtla, Mexico | M5.2 | 126 km | 57 km |
| Feb 3, 2010 | 5 km NE of Xayacatlán de Bravo, Mexico | M4.9 | 100 km | 88 km |
| Nov 15, 1990 | 21 km N of Coixtlahuaca, Mexico | M4.7 | 140 km | 70 km |
| Feb 8, 2016 | 5 km WSW of Atecax, Mexico | M4.7 | 66 km | 10 km |
| Jul 14, 2010 | 20 km E of Santa María Camotlán, Mexico | M4.6 | 141 km | 64 km |
| Jul 24, 2016 | 26 km NNW of Coixtlahuaca, Mexico | M4.5 | 135 km | 56 km |
| Dec 8, 2000 | 21 km ESE of Santiago Chazumba, Mexico | M4.3 | 115 km | 69 km |
| Oct 22, 2012 | 3 km ENE of Santiago Huajolotitlán, Mexico | M4.3 | 144 km | 65 km |
| Jun 24, 1999 | 4 km SSW of Totoltepec de Guerrero, Mexico | M4.2 | 108 km | 9 km |
| Apr 5, 2008 | 0 km SW of Santiago Chilixtlahuaca, Mexico | M4.1 | 140 km | 56 km |
| Mar 4, 2000 | 3 km NE of Tulcingo, Mexico | M4.1 | 103 km | 0 km |
| Jul 18, 2008 | 25 km E of Santiago Miltepec, Mexico | M4.1 | 130 km | 61 km |
| Jan 6, 2015 | 2 km SSE of San Julián, Mexico | M4.1 | 146 km | 33 km |
| Feb 4, 2003 | Puebla region, Mexico | M4.1 | 95 km | 1 km |
| Apr 21, 1998 | central Mexico | M4.1 | 101 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
15 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Erick | Category 2 | 75 mph | 286 km |
| 2021 | Grace | Category 3 | 121 mph | 152 km |
| 2017 | Katia | Category 2 | 104 mph | 173 km |
| 2017 | Franklin | Category 1 | 86 mph | 146 km |
| 2012 | Carlotta | Category 1 | 81 mph | 294 km |
| 2010 | Karl | Category 3 | 127 mph | 92 km |
| 2007 | Dean | Category 2 | 98 mph | 156 km |
| 2007 | Lorenzo | Category 1 | 81 mph | 162 km |
| 2005 | Stan | Category 1 | 81 mph | 295 km |
| 2000 | Keith | Category 1 | 86 mph | 281 km |
| 1996 | Dolly | Category 1 | 81 mph | 274 km |
| 1993 | Gert | Category 2 | 98 mph | 229 km |
| 1990 | Diana | Category 2 | 98 mph | 198 km |
| 1989 | Cosme | Category 1 | 81 mph | 287 km |
| 1988 | Debby | Category 1 | 75 mph | 178 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
11 volcanoes within 200 km. Closest: Serdan-Oriental (24 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Serdan-Oriental | Tuff cone(s) | 3,485 m (11,434 ft) | Unknown | 24 km |
| Cumbres, Las | Stratovolcano | 3,940 m (12,927 ft) | -3920 | 39 km |
| Orizaba, Pico de | Stratovolcano | 5,564 m (18,255 ft) | 1846 | 41 km |
| Gloria, La | Volcanic field | 3,500 m (11,483 ft) | Unknown | 47 km |
| Humeros, Los | Caldera(s) | 3,150 m (10,335 ft) | -4470 | 64 km |
| Cofre de Perote | Shield(s) | 4,282 m (14,049 ft) | 1150 | 65 km |
| Popocatepetl | Stratovolcano(es) | 5,393 m (17,694 ft) | 2020 | 104 km |
| Iztaccihuatl | Stratovolcano | 5,230 m (17,159 ft) | Unknown | 105 km |
| Naolinco Volcanic Field | Pyroclastic cone(s) | 2,000 m (6,562 ft) | -1200 | 111 km |
| Papayo | Lava dome | 3,600 m (11,811 ft) | Unknown | 113 km |
| Chichinautzin | Volcanic field | 3,930 m (12,894 ft) | 400 | 157 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 54°F (12°C) | 0.4 in | |
| February | 52°F (11°C) | 0.4 in | |
| March | 56°F (13°C) | 0.6 in | |
| April | 58°F (15°C) | 1.5 in | |
| May | 60°F (15°C) | 3.0 in | |
| June | 59°F (15°C) | 4.5 in | Wettest |
| July | 62°F (17°C) | 3.0 in | Warmest |
| August | 57°F (14°C) | 3.5 in | |
| September | 57°F (14°C) | 3.5 in | |
| October | 55°F (13°C) | 1.7 in | |
| November | 53°F (12°C) | 0.4 in | |
| December | 51°F (10°C) | 0.2 in | Coldest, Driest |
San Salvador El Seco has a seasonal temperature swing of 11°F / from 51°F in December to 62°F in July. Total annual precipitation is 22.5 inches, with June being the wettest month (4.5") and December the driest (0.2").