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Weather & Climate in Siltepec, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Siltepec enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 52°F in January while summers reach 57°F in July / relatively mild seasonal variation. The area gets 351 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 61.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 5,138 feet.
Temperature
52°F Jan (11°C)
57°F Jul (14°C)
| Annual Average | 55.9°F |
| 4% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 57°F (14°C) |
| Sunny Days | 351 days/yr |
Geography
| Elevation | 5,138 ft (1,566 m) |
| Area | 404.5 sq mi (1,047.7 km²) |
| Population Density | 8/sq mi |
| Coordinates | 15.5568°N, 92.3225°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
1,307 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.2.
| Sep 10, 1993 | 24 km W of Puerto Madero, Mexico | M7.2 | 100 km | 34 km |
| Jul 7, 2014 | 4 km W of Puerto Madero, Mexico | M6.9 | 94 km | 53 km |
| Mar 14, 1994 | 6 km ENE of Rizo de Oro, Mexico | M6.9 | 50 km | 164 km |
| Jun 14, 2017 | 2 km SSW of San Pablo, Guatemala | M6.9 | 80 km | 93 km |
| Sep 3, 1993 | 38 km SW of Puerto Madero, Mexico | M6.8 | 122 km | 27 km |
| Feb 1, 2019 | 5 km SW of Puerto Madero, Mexico | M6.7 | 99 km | 66 km |
| Nov 28, 2001 | 2 km ESE of El Carmen, Mexico | M6.4 | 84 km | 85 km |
| Jan 16, 2002 | 2 km SW of Las Brisas, Mexico | M6.4 | 87 km | 80 km |
| May 12, 2024 | 28 km WSW of Brisas Barra de Suchiate, Mexico | M6.4 | 127 km | 62 km |
| Sep 7, 2013 | 7 km ESE of Ignacio López Rayón, Mexico | M6.4 | 108 km | 66 km |
| Dec 31, 1996 | 4 km SW of El Ramal (Porvenir), Mexico | M6.4 | 76 km | 100 km |
| Mar 12, 2000 | 3 km ESE of Plan de Ayala, Mexico | M6.3 | 66 km | 62 km |
| May 30, 1992 | 62 km WSW of Puerto Madero, Mexico | M6.3 | 140 km | 55 km |
| Jan 21, 2012 | 46 km SW of El Arenal, Mexico | M6.2 | 106 km | 45 km |
| Mar 17, 2005 | 10 km NE of San Bartolo, Guatemala | M6.1 | 111 km | 197 km |
| Jan 19, 2001 | 6 km NNE of Hidalgo, Mexico | M6.0 | 46 km | 93 km |
| Apr 27, 2016 | 75 km WSW of Puerto Madero, Mexico | M6.0 | 142 km | 16 km |
| Apr 10, 1994 | 3 km E of Pajapita, Guatemala | M6.0 | 99 km | 100 km |
| Apr 25, 2016 | 83 km WSW of Puerto Madero, Mexico | M6.0 | 149 km | 16 km |
| May 1, 2012 | 63 km SW of Puerto Madero, Mexico | M6.0 | 145 km | 14 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
3 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2013 | Barbara | Category 1 | 81 mph | 183 km |
| 1998 | Lester | Category 1 | 92 mph | 269 km |
| 1996 | Douglas | Category 1 | 75 mph | 277 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 0.2 m (1 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1950 | GUATEMALA | Earthquake | 0.2 m | — | 145 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Tacana (53 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Tacana | Stratovolcano | 4,064 m (13,333 ft) | 1986 | 53 km |
| Almolonga | Stratovolcano | 3,173 m (10,410 ft) | 1818 | 121 km |
| Santa Maria | Stratovolcano | 3,745 m (12,287 ft) | 2020 | 121 km |
| Toliman | Stratovolcano(es) | 3,158 m (10,361 ft) | Unknown | 161 km |
| Acatenango | Stratovolcano(es) | 3,976 m (13,045 ft) | 1972 | 195 km |
| Fuego | Stratovolcano(es) | 3,763 m (12,346 ft) | 2020 | 196 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 52°F (11°C) | 0.4 in | Coldest |
| February | 63°F (17°C) | 0.4 in | Driest |
| March | 65°F (19°C) | 0.5 in | |
| April | 67°F (20°C) | 1.5 in | |
| May | 68°F (20°C) | 4.7 in | Warmest |
| June | 67°F (19°C) | 11.6 in | Wettest |
| July | 57°F (14°C) | 8.2 in | |
| August | 66°F (19°C) | 9.2 in | |
| September | 66°F (19°C) | 11.6 in | |
| October | 65°F (18°C) | 6.9 in | |
| November | 63°F (17°C) | 1.8 in | |
| December | 62°F (16°C) | 0.7 in |
Siltepec has a seasonal temperature swing of 16°F / from 52°F in January to 68°F in May. Total annual precipitation is 57.6 inches, with June being the wettest month (11.6") and February the driest (0.4").