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Weather & Climate in San Melchor Betaza, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Melchor Betaza has a warm climate with an average annual temperature of 76°F (24°C). Winters average 70°F in January while summers reach 78°F in July / relatively mild seasonal variation. The area gets 321 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 108.6 inches (wetter than the 38-inch national average). The city sits at an elevation of 4,724 feet.
Temperature
70°F Jan (21°C)
78°F Jul (25°C)
| Annual Average | 75.5°F |
| 40% above US avg | |
| January Average | 70°F (21°C) |
| July Average | 78°F (25°C) |
| Sunny Days | 321 days/yr |
Geography
| Elevation | 4,724 ft (1,440 m) |
| Area | 123.2 sq mi (319.0 km²) |
| Population Density | 6/sq mi |
| Coordinates | 17.2528°N, 96.1538°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
1,063 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.
| Jul 29, 2014 | 2 km SE of Santa Teresa, Mexico | M6.3 | 71 km | 107 km |
| Sep 23, 2017 | 7 km NNE of Ixtepec, Mexico | M6.1 | 134 km | 10 km |
| Feb 25, 2011 | 3 km NNE of Aguilera, Mexico | M5.9 | 138 km | 123 km |
| Aug 7, 2004 | 17 km WNW of Palomares, Mexico | M5.9 | 100 km | 101 km |
| Jan 30, 2002 | 5 km SSW of Tuxtilla, Mexico | M5.9 | 108 km | 109 km |
| Feb 23, 1994 | 12 km W of San Juan de los Cues, Mexico | M5.8 | 141 km | 73 km |
| Aug 2, 2025 | 4 km S of Xagacía, Mexico | M5.8 | 20 km | 63 km |
| May 21, 2014 | 2 km SSW of Palomares, Mexico | M5.8 | 116 km | 120 km |
| Mar 3, 2022 | Veracruz, Mexico | M5.7 | 132 km | 110 km |
| Jul 25, 1991 | 3 km WNW of Aguilera, Mexico | M5.7 | 133 km | 127 km |
| Aug 28, 1994 | 6 km N of San Pedro Ocotepec, Mexico | M5.6 | 42 km | 68 km |
| Jun 7, 2002 | 4 km N of Santa Catarina Loxicha, Mexico | M5.6 | 142 km | 33 km |
| Mar 15, 2025 | 5 km W of San Pedro Tidaá, Mexico | M5.6 | 135 km | 62 km |
| Apr 10, 2016 | 5 km ESE of Santa Cruz Ozolotepec, Mexico | M5.5 | 134 km | 25 km |
| Mar 6, 2022 | 3 km S of Zacatal, Mexico | M5.5 | 108 km | 95 km |
| Apr 28, 2015 | 4 km NNE of Paso Real de Sarabia, Mexico | M5.5 | 120 km | 111 km |
| May 25, 2022 | 12 km WNW of Santa María Zapotitlán, Mexico | M5.5 | 122 km | 34 km |
| Mar 23, 1990 | 2 km W of San Juan Ozolotepec, Mexico | M5.3 | 125 km | 63 km |
| Mar 1, 2022 | 5 km SE of San Cristóbal Amatlán, Mexico | M5.3 | 111 km | 40 km |
| Jun 7, 2002 | 6 km E of Santa Catarina Loxicha, Mexico | M5.3 | 143 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
9 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 | 239 km |
| 2022 | Agatha | Category 2 | 104 mph | 153 km |
| 2017 | Max | Category 1 | — | 298 km |
| 2013 | Barbara | Category 1 | 81 mph | 267 km |
| 2012 | Carlotta | Category 2 | 109 mph | 177 km |
| 2010 | Karl | Category 3 | 127 mph | 196 km |
| 2005 | Stan | Category 1 | 81 mph | 200 km |
| 1997 | Pauline | Category 4 | 132 mph | 190 km |
| 1997 | Rick | Category 1 | 92 mph | 151 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 0.4 m (1 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1965 | MEXICO | Earthquake | 0.4 m | 6 | 112 km |
| 2022 | S. MEXICO | Earthquake | 0.2 m | — | 122 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: San Martin (178 km).
| Name | Type | Elevation | Last Eruption | Distance |
| San Martin | Shield | 1,650 m (5,413 ft) | 1796 | 178 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 70°F (21°C) | 1.8 in | |
| February | 60°F (16°C) | 1.6 in | |
| March | 64°F (18°C) | 1.5 in | Driest |
| April | 67°F (19°C) | 2.0 in | |
| May | 68°F (20°C) | 4.1 in | |
| June | 66°F (19°C) | 12.5 in | |
| July | 78°F (25°C) | 13.5 in | Warmest |
| August | 64°F (18°C) | 13.8 in | |
| September | 64°F (18°C) | 14.4 in | Wettest |
| October | 62°F (17°C) | 8.5 in | |
| November | 60°F (16°C) | 4.5 in | |
| December | 59°F (15°C) | 2.8 in | Coldest |
San Melchor Betaza has a seasonal temperature swing of 19°F / from 59°F in December to 78°F in July. Total annual precipitation is 80.9 inches, with September being the wettest month (14.4") and March the driest (1.5").