Weather & Climate in San Martín, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Martín has a warm climate with an average annual temperature of 74°F (23°C). Winters average 71°F in January while summers reach 75°F in July / relatively mild seasonal variation. Annual precipitation totals 45.7 inches. The city sits at an elevation of 3,337 feet.
Temperature
71°F Jan (22°C)
75°F Jul (24°C)
| Annual Average | 74.1°F |
| 37% above US avg | |
| January Average | 71°F (22°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 3,337 ft (1,017 m) |
| Area | 336.0 sq mi (870.2 km²) |
| Population Density | 4/sq mi |
| Coordinates | 17.4631°N, 99.2944°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
2,348 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.4.
| Sep 14, 1995 | 5 km N of Azoyú, Mexico | M7.4 | 106 km | 23 km |
| Sep 19, 2017 | 1 km S of Matzaco, Mexico | M7.1 | 148 km | 48 km |
| Oct 24, 1993 | 1 km ENE of Jolotichán, Mexico | M6.7 | 100 km | 21 km |
| Aug 21, 2013 | 5 km ESE of Barrio Nuevo de los Muertos, Mexico | M6.2 | 69 km | 21 km |
| May 15, 1993 | 1 km ENE of Ometepec, Mexico | M6.1 | 128 km | 21 km |
| Nov 13, 1993 | 18 km SW of Montecillos, Mexico | M6.0 | 148 km | 20 km |
| Apr 13, 2007 | 5 km SE of El Paraíso, Mexico | M6.0 | 98 km | 34 km |
| May 15, 1993 | 2 km SSW of Ometepec, Mexico | M6.0 | 128 km | 20 km |
| Jul 21, 2000 | 12 km NW of Jolalpan, Mexico | M5.9 | 113 km | 80 km |
| Oct 8, 2001 | 3 km WSW of Tixtlancingo, Mexico | M5.9 | 88 km | 10 km |
| Apr 27, 2009 | 2 km WNW of Pochotillo, Mexico | M5.8 | 51 km | 35 km |
| Apr 28, 2008 | 21 km WNW of Tlacotepec, Mexico | M5.8 | 102 km | 57 km |
| Jun 16, 2013 | 5 km N of Tequicuilco, Mexico | M5.8 | 78 km | 52 km |
| Mar 20, 2021 | 6 km NNW of Marquelia, Mexico | M5.7 | 104 km | 10 km |
| May 5, 2011 | 2 km SE of Cuanacaxtitlán, Mexico | M5.7 | 104 km | 24 km |
| May 22, 2009 | 3 km E of Chila de la Sal, Mexico | M5.6 | 114 km | 62 km |
| May 11, 1990 | 7 km NW of El Súchil, Mexico | M5.6 | 148 km | 28 km |
| Oct 30, 1995 | 4 km ESE of Cuajinicuilapa, Mexico | M5.6 | 148 km | 33 km |
| Aug 15, 2009 | 3 km NE of San Miguel Totolapan, Mexico | M5.5 | 139 km | 57 km |
| Apr 26, 2011 | 8 km NNE of El Cortés, Mexico | M5.5 | 71 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
17 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Erick | Category 4 | 138 mph | 40 km |
| 2024 | John | Category 3 | 121 mph | 57 km |
| 2023 | Otis | Category 5 | 167 mph | 90 km |
| 2023 | Beatriz | Category 1 | 81 mph | 276 km |
| 2021 | Rick | Category 2 | 104 mph | 256 km |
| 2017 | Max | Category 1 | 92 mph | 95 km |
| 2015 | Carlos | Category 1 | 86 mph | 190 km |
| 2013 | Raymond | Category 3 | 127 mph | 296 km |
| 2012 | Carlotta | Category 2 | 104 mph | 183 km |
| 2011 | Hilary | Category 4 | 138 mph | 203 km |
| 2006 | John | Category 4 | 132 mph | 288 km |
| 1997 | Pauline | Category 3 | 109 mph | 67 km |
| 1997 | Rick | Category 2 | 98 mph | 219 km |
| 1996 | Boris | Category 1 | 92 mph | 187 km |
| 1993 | Calvin | Category 2 | 104 mph | 258 km |
| 1989 | Cosme | Category 1 | 86 mph | 70 km |
| 1984 | Odile | Category 2 | 104 mph | 191 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tsunami History
14 tsunamis recorded within 500 km. Highest wave on record: 4.0 m (13 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1820 | S. MEXICO | Earthquake | 4.0 m | - | 44 km |
| 1787 | SAN MARCOS | Earthquake | 4.0 m | 11 | 136 km |
| 1754 | S. MEXICO | Earthquake | 4.0 m | - | 74 km |
| 1732 | S. MEXICO | Earthquake | 3.0 m | - | 98 km |
| 1907 | S. MEXICO | Earthquake | 2.0 m | 8 | 91 km |
| 1957 | S. MEXICO | Earthquake | 1.3 m | 65 | 109 km |
| 1962 | S. MEXICO | Earthquake | 0.8 m | 4 | 44 km |
| 2021 | S. MEXICO | Earthquake | 0.5 m | 3 | 74 km |
| 1995 | S. MEXICO | Earthquake | 0.4 m | 3 | 106 km |
| 1962 | S. MEXICO | Earthquake | 0.3 m | 3 | 37 km |
| 2026 | ACAPULCO | Earthquake | 0.1 m | 2 | 62 km |
| 1868 | S. MEXICO | Earthquake | - | - | 98 km |
| 1845 | S. MEXICO | Earthquake | - | - | 148 km |
| 1833 | S. MEXICO | Earthquake | - | - | 98 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
3 volcanoes within 200 km. Closest: Chichinautzin (181 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Chichinautzin | Volcanic field | 3,930 m (12,894 ft) | 400 | 181 km |
| Popocatepetl | Stratovolcano(es) | 5,393 m (17,694 ft) | 2020 | 187 km |
| Toluca, Nevado de | Stratovolcano | 4,680 m (15,354 ft) | -1350 | 189 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 71°F (22°C) | 0.4 in | Coldest |
| February | 72°F (22°C) | 0.2 in | |
| March | 75°F (24°C) | 0.1 in | Driest |
| April | 77°F (25°C) | 0.4 in | |
| May | 78°F (26°C) | 2.3 in | Warmest |
| June | 76°F (25°C) | 8.4 in | |
| July | 75°F (24°C) | 9.4 in | |
| August | 75°F (24°C) | 9.3 in | |
| September | 74°F (23°C) | 10.1 in | Wettest |
| October | 74°F (23°C) | 4.1 in | |
| November | 73°F (23°C) | 0.8 in | |
| December | 71°F (22°C) | 0.3 in |
San Martín has a seasonal temperature swing of 7°F / from 71°F in January to 78°F in May. Total annual precipitation is 45.7 inches, with September being the wettest month (10.1") and March the driest (0.1").