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Weather & Climate in Hermiltepec, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hermiltepec enjoys a temperate climate with an average annual temperature of 70°F (21°C). Winters average 66°F in January while summers reach 70°F in July / relatively mild seasonal variation. The area gets 250 sunny days per year, above the national average. Annual precipitation totals 47.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 3,878 feet.
Temperature
66°F Jan (19°C)
70°F Jul (21°C)
| Annual Average | 70.1°F |
| 30% above US avg | |
| January Average | 66°F (19°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 250 days/yr |
Geography
| Elevation | 3,878 ft (1,182 m) |
| Area | 291.0 sq mi (753.6 km²) |
| Population Density | 2/sq mi |
| Coordinates | 18.9921°N, 100.3707°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
392 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.5.
| Dec 10, 1994 | 22 km SW of Guayameo, Mexico | M6.5 | 143 km | 48 km |
| May 22, 1997 | 5 km ENE of Churumuco de Morelos, Mexico | M6.5 | 134 km | 70 km |
| May 23, 1994 | 4 km W of San Cristóbal, Mexico | M6.3 | 93 km | 55 km |
| Jun 21, 1999 | 20 km E of Coahuayutla de Guerrero, Mexico | M6.3 | 144 km | 69 km |
| Nov 15, 2012 | 8 km N of San José Poliutla, Mexico | M6.1 | 72 km | 53 km |
| Apr 20, 1998 | 17 km ENE of Aratichanguío, Mexico | M6.0 | 102 km | 67 km |
| Dec 29, 1999 | 19 km WSW of Guayameo, Mexico | M5.9 | 139 km | 70 km |
| Apr 28, 2008 | 21 km WNW of Tlacotepec, Mexico | M5.8 | 129 km | 57 km |
| May 1, 2012 | 19 km W of Placeres del Oro, Mexico | M5.7 | 112 km | 51 km |
| Aug 15, 2009 | 3 km NE of San Miguel Totolapan, Mexico | M5.5 | 90 km | 57 km |
| Apr 29, 2008 | 19 km W of Huetamo de Núñez, Mexico | M5.3 | 84 km | 76 km |
| Dec 20, 1995 | 15 km NW of Zirándaro de los Chávez, Mexico | M5.3 | 87 km | 77 km |
| Jun 2, 2011 | 24 km N of Aratichanguío, Mexico | M5.3 | 105 km | 82 km |
| Feb 20, 2006 | 15 km SE of Patambó, Mexico | M5.2 | 103 km | 51 km |
| Jul 21, 2003 | 14 km W of Huetamo de Núñez, Mexico | M5.2 | 81 km | 62 km |
| Aug 12, 2022 | 10 km E of Zirándaro de los Chávez, Mexico | M5.2 | 78 km | 72 km |
| Mar 3, 2019 | 6 km SW of Aratichanguío, Mexico | M5.1 | 126 km | 49 km |
| Jul 16, 2023 | 3 km W of Paso de Arena, Mexico | M5.1 | 93 km | 63 km |
| Jul 28, 2007 | 19 km S of Patambó, Mexico | M5.1 | 116 km | 49 km |
| May 16, 2018 | Guerrero-Michoacan border region, Mexico | M5.0 | 87 km | 51 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
12 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Erick | Category 3 | 127 mph | 239 km |
| 2024 | John | Category 3 | 121 mph | 198 km |
| 2023 | Otis | Category 5 | 167 mph | 144 km |
| 2023 | Beatriz | Category 1 | 86 mph | 286 km |
| 2021 | Rick | Category 2 | 104 mph | 208 km |
| 2017 | Max | Category 1 | 92 mph | 286 km |
| 2015 | Carlos | Category 1 | 75 mph | 290 km |
| 1997 | Pauline | Category 2 | 81 mph | 233 km |
| 1996 | Alma | Category 2 | 104 mph | 241 km |
| 1996 | Boris | Category 1 | 92 mph | 184 km |
| 1989 | Cosme | Category 1 | 81 mph | 274 km |
| 1984 | Odile | Category 2 | 104 mph | 247 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
7 volcanoes within 200 km. Closest: Zitacuaro-Valle de Bravo (47 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Zitacuaro-Valle de Bravo | Caldera | 3,500 m (11,483 ft) | -3050 | 47 km |
| Toluca, Nevado de | Stratovolcano | 4,680 m (15,354 ft) | -1350 | 66 km |
| Chichinautzin | Volcanic field | 3,930 m (12,894 ft) | 400 | 131 km |
| Michoacan-Guanajuato | Pyroclastic cone(s) | 3,860 m (12,664 ft) | 1952 | 173 km |
| Papayo | Lava dome | 3,600 m (11,811 ft) | Unknown | 179 km |
| Iztaccihuatl | Stratovolcano | 5,230 m (17,159 ft) | Unknown | 183 km |
| Popocatepetl | Stratovolcano(es) | 5,393 m (17,694 ft) | 2020 | 184 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 66°F (19°C) | 0.7 in | Coldest |
| February | 68°F (20°C) | 0.2 in | Driest |
| March | 71°F (22°C) | 0.3 in | |
| April | 75°F (24°C) | 0.3 in | |
| May | 76°F (24°C) | 2.0 in | Warmest |
| June | 73°F (23°C) | 9.0 in | |
| July | 70°F (21°C) | 9.6 in | |
| August | 70°F (21°C) | 9.6 in | |
| September | 70°F (21°C) | 9.7 in | Wettest |
| October | 69°F (21°C) | 4.7 in | |
| November | 68°F (20°C) | 1.0 in | |
| December | 67°F (19°C) | 0.2 in |
Hermiltepec has a seasonal temperature swing of 10°F / from 66°F in January to 76°F in May. Total annual precipitation is 47.3 inches, with September being the wettest month (9.7") and February the driest (0.2").