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Weather & Climate in Alcalde Mayor, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Alcalde Mayor has a warm climate with an average annual temperature of 77°F (25°C). Winters average 72°F in January while summers reach 79°F in July / relatively mild seasonal variation. The area gets 338 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 96.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 49 feet.
Temperature
72°F Jan (22°C)
79°F Jul (26°C)
| Annual Average | 77.1°F |
| 43% above US avg | |
| January Average | 72°F (22°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 338 days/yr |
Geography
| Elevation | 49 ft (15 m) |
| Area | 1,103.1 sq mi (2,857.1 km²) |
| Population Density | 1/sq mi |
| Coordinates | 17.7159°N, 92.3105°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
65 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.8.
| Feb 1, 2003 | 7 km NNW of Nuevo Vicente Guerrero (El Chichonal), Mexico | M5.8 | 143 km | 211 km |
| May 5, 2025 | 5 km NNE of Nuevo León, Mexico | M5.8 | 135 km | 261 km |
| Jan 3, 1998 | 15 km WNW of Plan de Ayala, Mexico | M4.7 | 141 km | 200 km |
| Apr 15, 2012 | 31 km NE of Nuevo Francisco León, Mexico | M4.6 | 135 km | 13 km |
| Nov 5, 2000 | 2 km NW of Los Pozos, Mexico | M4.6 | 118 km | 10 km |
| Nov 14, 2012 | 7 km SSW of Nuevo Juan del Grijalva, Mexico | M4.6 | 122 km | 21 km |
| Mar 12, 2010 | 6 km N of Plan de Ayala, Mexico | M4.6 | 125 km | 223 km |
| Aug 6, 2009 | 6 km W of Sibacá, Mexico | M4.6 | 89 km | 124 km |
| Mar 11, 2003 | 19 km NNE of Ubilio García, Mexico | M4.6 | 107 km | 5 km |
| Jul 18, 1993 | 0 km ESE of Pablo L. Sidar, Mexico | M4.5 | 78 km | 14 km |
| Jun 9, 2007 | 7 km W of Ignacio Gutiérrez Gómez, Mexico | M4.4 | 136 km | 12 km |
| May 29, 2007 | 8 km NE of Xicoténcatl, Mexico | M4.4 | 39 km | 25 km |
| Oct 19, 1996 | 3 km W of Yibeljoj, Mexico | M4.4 | 88 km | 33 km |
| Jan 19, 1999 | 2 km ESE of Raya Zaragoza, Mexico | M4.4 | 52 km | 96 km |
| Feb 11, 2007 | 0 km W of Cunduacán, Mexico | M4.4 | 100 km | 103 km |
| Jan 18, 2014 | 5 km NNE of Netzahualcóyotl, Mexico | M4.3 | 94 km | 20 km |
| Apr 1, 2005 | 2 km SE of Majomut, Mexico | M4.3 | 104 km | 241 km |
| Jun 22, 2006 | 7 km SW of Mecatepec, Mexico | M4.3 | 135 km | 57 km |
| Jun 2, 2007 | 12 km ENE of Justo Sierra, Mexico | M4.3 | 133 km | 46 km |
| Nov 19, 2012 | 13 km W of Nuevo Volcán Chichonal, Mexico | M4.3 | 98 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
6 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2013 | Barbara | Category 1 | 81 mph | 239 km |
| 2011 | Nate | Category 1 | 75 mph | 221 km |
| 2010 | Karl | Category 2 | 109 mph | 234 km |
| 2007 | Dean | Category 2 | 86 mph | 215 km |
| 2005 | Stan | Category 1 | 81 mph | 251 km |
| 1995 | Roxanne | Category 1 | 86 mph | 216 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 | 128 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Chichon, El (105 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Chichon, El | Lava dome(s) | 1,150 m (3,773 ft) | 1982 | 105 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 72°F (22°C) | 6.1 in | Coldest |
| February | 76°F (24°C) | 5.1 in | |
| March | 80°F (26°C) | 3.4 in | |
| April | 83°F (28°C) | 2.7 in | Driest |
| May | 86°F (30°C) | 5.2 in | Warmest |
| June | 84°F (29°C) | 11.2 in | |
| July | 79°F (26°C) | 8.3 in | |
| August | 83°F (28°C) | 11.7 in | |
| September | 82°F (28°C) | 15.6 in | |
| October | 80°F (27°C) | 15.9 in | Wettest |
| November | 78°F (25°C) | 9.5 in | |
| December | 75°F (24°C) | 7.5 in |
Alcalde Mayor has a seasonal temperature swing of 14°F / from 72°F in January to 86°F in May. Total annual precipitation is 102.3 inches, with October being the wettest month (15.9") and April the driest (2.7").