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Weather & Climate in San Jerónimo Coatlán, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Jerónimo Coatlán enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 64°F in January while summers reach 69°F in July / relatively mild seasonal variation. The area gets 253 sunny days per year, above the national average. Annual precipitation totals 45.8 inches. The city sits at an elevation of 5,984 feet.
Temperature
64°F Jan (18°C)
69°F Jul (20°C)
| Annual Average | 67.5°F |
| 25% above US avg | |
| January Average | 64°F (18°C) |
| July Average | 69°F (20°C) |
| Sunny Days | 253 days/yr |
Geography
| Elevation | 5,984 ft (1,824 m) |
| Area | 351.7 sq mi (911.0 km²) |
| Population Density | 3/sq mi |
| Coordinates | 16.2317°N, 96.8693°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
1,758 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.5.
| Sep 30, 1999 | 15 km W of San Baltazar Loxicha, Mexico | M7.5 | 20 km | 61 km |
| Jun 23, 2020 | 9 km SE of Santa María Xadani, Mexico | M7.4 | 100 km | 20 km |
| Mar 20, 2012 | 6 km E of Santiago Llano Grande, Mexico | M7.4 | 148 km | 20 km |
| Feb 16, 2018 | 4 km S of Pinotepa de Don Luis, Mexico | M7.2 | 120 km | 22 km |
| Feb 25, 1996 | 24 km SSW of Santa María Chico Ometepec, Mexico | M7.1 | 131 km | 21 km |
| Jul 19, 1997 | 4 km ENE of El Ciruelo, Mexico | M6.9 | 144 km | 33 km |
| Feb 3, 1998 | 2 km E of Benito Juárez, Mexico | M6.4 | 72 km | 33 km |
| Jun 30, 2010 | 2 km ESE of San Agustín Chayuco, Mexico | M6.3 | 99 km | 20 km |
| Feb 25, 1996 | 7 km SE of Santa María Chico Ometepec, Mexico | M6.2 | 114 km | 12 km |
| Feb 19, 2018 | 4 km SSE of Santiago Tetepec, Mexico | M5.9 | 92 km | 22 km |
| Jun 14, 2004 | 0 km W of Santa Catarina Mechoacán, Mexico | M5.9 | 105 km | 10 km |
| Mar 19, 1996 | 21 km WSW of Bajos de Chila, Mexico | M5.9 | 63 km | 33 km |
| Aug 2, 2025 | 4 km S of Xagacía, Mexico | M5.8 | 117 km | 63 km |
| Feb 17, 2018 | 8 km SE of José María Morelos, Mexico | M5.8 | 107 km | 3 km |
| May 8, 2016 | 3 km WNW of San Agustín Chayuco, Mexico | M5.8 | 106 km | 22 km |
| Jun 27, 2016 | 8 km S of La Reforma, Mexico | M5.7 | 109 km | 19 km |
| May 24, 2014 | 2 km S of San Sebastián Ixcapa, Mexico | M5.7 | 140 km | 17 km |
| Feb 9, 2010 | 8 km E of Santa María Colotepec, Mexico | M5.7 | 38 km | 40 km |
| Mar 27, 1996 | 1 km W of San Miguel Tlacamama, Mexico | M5.6 | 131 km | 29 km |
| Jun 7, 2002 | 4 km N of Santa Catarina Loxicha, Mexico | M5.6 | 19 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
15 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Erick | Category 4 | 138 mph | 106 km |
| 2024 | John | Category 3 | 121 mph | 189 km |
| 2023 | Otis | Category 4 | 150 mph | 298 km |
| 2022 | Agatha | Category 2 | 109 mph | 62 km |
| 2017 | Max | Category 1 | 92 mph | 223 km |
| 2013 | Barbara | Category 1 | 75 mph | 291 km |
| 2012 | Carlotta | Category 2 | 109 mph | 48 km |
| 2011 | Hilary | Category 2 | 104 mph | 231 km |
| 2010 | Karl | Category 1 | — | 297 km |
| 2006 | John | Category 3 | 109 mph | 282 km |
| 1998 | Lester | Category 2 | 104 mph | 193 km |
| 1997 | Pauline | Category 4 | 132 mph | 59 km |
| 1997 | Rick | Category 2 | 92 mph | 47 km |
| 1996 | Douglas | Category 1 | 86 mph | 293 km |
| 1989 | Cosme | Category 1 | 86 mph | 239 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
10 tsunamis recorded within 500 km. Highest wave on record: 1.6 m (5 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2020 | OFF COAST OF OAXACA | Earthquake | 1.6 m | 10 | 100 km |
| 1965 | MEXICO | Earthquake | 0.4 m | 6 | 114 km |
| 1950 | S. MEXICO | Earthquake | 0.3 m | — | 147 km |
| 2022 | S. MEXICO | Earthquake | 0.2 m | — | 98 km |
| 2012 | S. MEXICO | Earthquake | 0.2 m | 2 | 148 km |
| 1928 | S. MEXICO | Earthquake | 0.2 m | 4 | 29 km |
| 1996 | MEXICO | Earthquake | 0.1 m | — | 131 km |
| 1968 | ACAPULCO | Earthquake | — | 18 | 98 km |
| 1928 | MEXICO | Earthquake | — | — | 103 km |
| 1870 | PUERTO ANGEL, MEXICO | Earthquake | — | 24 | 111 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 64°F (18°C) | 0.2 in | Coldest, Driest |
| February | 66°F (19°C) | 0.4 in | |
| March | 68°F (20°C) | 0.5 in | |
| April | 70°F (21°C) | 1.5 in | |
| May | 70°F (21°C) | 4.7 in | Warmest |
| June | 69°F (21°C) | 9.5 in | Wettest |
| July | 69°F (20°C) | 7.2 in | |
| August | 68°F (20°C) | 8.2 in | |
| September | 68°F (20°C) | 8.5 in | |
| October | 67°F (20°C) | 3.9 in | |
| November | 66°F (19°C) | 0.8 in | |
| December | 65°F (18°C) | 0.4 in |
San Jerónimo Coatlán has a seasonal temperature swing of 6°F / from 64°F in January to 70°F in May. Total annual precipitation is 45.8 inches, with June being the wettest month (9.5") and January the driest (0.2").