All Countries
Weather & Climate in Helio García Alfaro, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Helio García Alfaro has a warm climate with an average annual temperature of 77°F (25°C). Winters average 71°F in January while summers reach 80°F in July / relatively mild seasonal variation. The area gets 146 sunny days per year, below the national average of 205. Annual precipitation totals 125.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 207 feet.
Temperature
71°F Jan (22°C)
80°F Jul (27°C)
| Annual Average | 77.4°F |
| 43% above US avg | |
| January Average | 71°F (22°C) |
| July Average | 80°F (27°C) |
| Sunny Days | 146 days/yr |
Geography
| Elevation | 207 ft (63 m) |
| Area | 108.9 sq mi (282.0 km²) |
| Population Density | 15/sq mi |
| Coordinates | 17.2597°N, 94.2885°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
1,716 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.2.
| Oct 21, 1995 | 13 km NW of Ocozocoautla de Espinosa, Mexico | M7.2 | 99 km | 159 km |
| Apr 7, 2011 | 7 km SW of Helio García Alfaro, Mexico | M6.6 | 8 km | 166 km |
| Feb 12, 2008 | 9 km SSW of General Pascual Fentes, Mexico | M6.5 | 100 km | 83 km |
| Jul 6, 2007 | 6 km N of Lázaro Cárdenas, Mexico | M6.1 | 106 km | 113 km |
| Sep 23, 2017 | 7 km NNE of Ixtepec, Mexico | M6.1 | 110 km | 10 km |
| Jan 5, 2020 | 3 km W of Reforma de Pineda, Mexico | M5.9 | 98 km | 87 km |
| Aug 7, 2004 | 17 km WNW of Palomares, Mexico | M5.9 | 99 km | 101 km |
| Feb 25, 2011 | 3 km NNE of Aguilera, Mexico | M5.9 | 100 km | 123 km |
| Aug 18, 2004 | 8 km E of Juchitán de Zaragoza, Mexico | M5.9 | 116 km | 63 km |
| Aug 9, 2023 | 7 km NNE of Tonalá, Mexico | M5.8 | 137 km | 103 km |
| May 21, 2014 | 2 km SSW of Palomares, Mexico | M5.8 | 85 km | 120 km |
| Mar 2, 2023 | Oaxaca, Mexico | M5.7 | 112 km | 96 km |
| Aug 5, 2015 | 11 km ENE of Tonalá, Mexico | M5.7 | 141 km | 101 km |
| Jul 25, 1991 | 3 km WNW of Aguilera, Mexico | M5.7 | 102 km | 127 km |
| May 20, 2017 | 21 km SE of La Horqueta (Poblado Doce), Mexico | M5.7 | 32 km | 144 km |
| Mar 12, 1994 | 30 km NNE of Santo Domingo Zanatepec, Mexico | M5.6 | 57 km | 97 km |
| Oct 14, 2017 | 12 km E of San Mateo del Mar, Mexico | M5.5 | 130 km | 56 km |
| Mar 6, 2022 | 3 km S of Zacatal, Mexico | M5.5 | 104 km | 95 km |
| Apr 28, 2015 | 4 km NNE of Paso Real de Sarabia, Mexico | M5.5 | 81 km | 111 km |
| Jan 30, 2019 | 37 km NE of La Horqueta (Poblado Doce), Mexico | M5.4 | 41 km | 172 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
5 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2022 | Agatha | Category 2 | 104 mph | 271 km |
| 2013 | Barbara | Category 1 | 81 mph | 125 km |
| 2010 | Karl | Category 3 | 127 mph | 268 km |
| 2005 | Stan | Category 1 | 81 mph | 163 km |
| 1997 | Rick | Category 1 | 75 mph | 237 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 50.0 m (164 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2007 | JUAN DE GRIJALVA, CHIAPAS | Meteorological | 50.0 m | 19 | 134 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Chichon, El (113 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Chichon, El | Lava dome(s) | 1,150 m (3,773 ft) | 1982 | 113 km |
| San Martin | Shield | 1,650 m (5,413 ft) | 1796 | 175 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 71°F (22°C) | 6.4 in | Coldest |
| February | 72°F (22°C) | 4.9 in | |
| March | 77°F (25°C) | 3.1 in | |
| April | 80°F (27°C) | 2.8 in | Driest |
| May | 83°F (28°C) | 5.3 in | Warmest |
| June | 82°F (28°C) | 15.2 in | |
| July | 80°F (27°C) | 15.7 in | |
| August | 80°F (27°C) | 17.3 in | |
| September | 80°F (27°C) | 20.1 in | Wettest |
| October | 78°F (25°C) | 15.6 in | |
| November | 75°F (24°C) | 10.4 in | |
| December | 72°F (22°C) | 8.3 in |
Helio García Alfaro has a seasonal temperature swing of 12°F / from 71°F in January to 83°F in May. Total annual precipitation is 125.1 inches, with September being the wettest month (20.1") and April the driest (2.8").