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Weather & Climate in San Jeronimito, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Jeronimito has a warm climate with an average annual temperature of 81°F (27°C). Winters average 79°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 261 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 41.3 inches. The city sits at an elevation of 108 feet.
Temperature
79°F Jan (26°C)
82°F Jul (28°C)
| Annual Average | 80.8°F |
| 50% above US avg | |
| January Average | 79°F (26°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 261 days/yr |
Geography
| Elevation | 108 ft (33 m) |
| Area | 1,055.8 sq mi (2,734.4 km²) |
| Population Density | 6/sq mi |
| Coordinates | 17.5682°N, 101.3456°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
2,069 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.2.
| Apr 18, 2014 | 9 km ENE of Coyuquilla Norte, Mexico | M7.2 | 44 km | 24 km |
| Jul 15, 1996 | 26 km NNE of Coyuquilla Norte, Mexico | M6.8 | 41 km | 18 km |
| Apr 18, 2002 | 27 km SSW of Nuxco, Mexico | M6.8 | 83 km | 25 km |
| Dec 10, 1994 | 22 km SW of Guayameo, Mexico | M6.5 | 63 km | 48 km |
| May 22, 1997 | 5 km ENE of Churumuco de Morelos, Mexico | M6.5 | 127 km | 70 km |
| Aug 9, 2000 | 24 km NNW of El Habillal, Mexico | M6.5 | 139 km | 46 km |
| May 8, 2014 | 3 km NNE of Nuxco, Mexico | M6.4 | 74 km | 17 km |
| Jun 21, 1999 | 20 km E of Coahuayutla de Guerrero, Mexico | M6.3 | 87 km | 69 km |
| May 23, 1994 | 4 km W of San Cristóbal, Mexico | M6.3 | 109 km | 55 km |
| Jan 1, 2004 | 6 km SW of Petatlán, Mexico | M6.1 | 10 km | 29 km |
| Nov 15, 2012 | 8 km N of San José Poliutla, Mexico | M6.1 | 134 km | 53 km |
| May 31, 1990 | 7 km NE of Nuxco, Mexico | M6.0 | 76 km | 23 km |
| May 10, 2014 | 6 km W of Nuxco, Mexico | M6.0 | 69 km | 23 km |
| Apr 20, 1998 | 17 km ENE of Aratichanguío, Mexico | M6.0 | 108 km | 67 km |
| Apr 13, 2007 | 5 km SE of El Paraíso, Mexico | M6.0 | 125 km | 34 km |
| Apr 22, 2013 | 7 km NNE of Guacamayas, Mexico | M6.0 | 105 km | 30 km |
| Dec 29, 1999 | 19 km WSW of Guayameo, Mexico | M5.9 | 76 km | 70 km |
| Apr 18, 2002 | 24 km WSW of Papanoa, Mexico | M5.9 | 39 km | 33 km |
| Apr 28, 2008 | 21 km WNW of Tlacotepec, Mexico | M5.8 | 128 km | 57 km |
| Jul 25, 1991 | 61 km SW of Papanoa, Mexico | M5.8 | 76 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
34 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Erick | Category 2 | 75 mph | 223 km |
| 2024 | John | Category 3 | 121 mph | 133 km |
| 2023 | Otis | Category 5 | 167 mph | 112 km |
| 2023 | Beatriz | Category 1 | 86 mph | 98 km |
| 2022 | Blas | Category 1 | 86 mph | 299 km |
| 2021 | Rick | Category 2 | 104 mph | 59 km |
| 2019 | Lorena | Category 1 | — | 285 km |
| 2017 | Max | Category 1 | 92 mph | 167 km |
| 2015 | Marty | Category 1 | 81 mph | 141 km |
| 2015 | Carlos | Category 1 | 86 mph | 147 km |
| 2013 | Raymond | Category 3 | 127 mph | 143 km |
| 2013 | Erick | Category 1 | 81 mph | 221 km |
| 2011 | Hilary | Category 4 | 144 mph | 174 km |
| 2011 | Beatriz | Category 1 | 92 mph | 187 km |
| 2009 | Andres | Category 1 | 81 mph | 171 km |
| 2006 | John | Category 4 | 132 mph | 159 km |
| 2001 | Adolph | Category 4 | 144 mph | 295 km |
| 1997 | Rick | Category 2 | 98 mph | 292 km |
| 1997 | Pauline | Category 1 | 81 mph | 186 km |
| 1996 | Alma | Category 2 | 104 mph | 122 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
9 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1985 | MEXICO | Earthquake | 3.0 m | 9,500 | 143 km |
| 1979 | S. MEXICO | Earthquake | 1.3 m | 5 | 28 km |
| 1985 | MEXICO | Earthquake | 1.2 m | — | 41 km |
| 2014 | S. MEXICO | Earthquake | 0.4 m | — | 44 km |
| 2013 | MEXICO | Earthquake | 0.1 m | — | 105 km |
| 1981 | MEXICO | Earthquake | 0.1 m | 3 | 97 km |
| 2002 | S. MEXICO | Earthquake | — | — | 83 km |
| 1933 | MEXICO | Earthquake | — | — | 50 km |
| 1845 | S. MEXICO | Earthquake | — | — | 101 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 0.7 in | Coldest |
| February | 79°F (26°C) | 0.1 in | |
| March | 79°F (26°C) | 0.0 in | Driest |
| April | 80°F (27°C) | 0.0 in | |
| May | 81°F (27°C) | 0.8 in | |
| June | 82°F (28°C) | 7.3 in | Warmest |
| July | 82°F (28°C) | 7.4 in | |
| August | 82°F (28°C) | 7.6 in | |
| September | 82°F (28°C) | 11.6 in | Wettest |
| October | 82°F (28°C) | 4.8 in | |
| November | 81°F (27°C) | 0.6 in | |
| December | 80°F (27°C) | 0.2 in |
San Jeronimito has a seasonal temperature swing of 4°F / from 79°F in January to 82°F in June. Total annual precipitation is 41.3 inches, with September being the wettest month (11.6") and March the driest (0.0").