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Weather & Climate in San Isidro, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Isidro enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 59°F in January while summers reach 64°F in July / relatively mild seasonal variation. The area gets 357 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 58.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 3,599 feet.
Temperature
59°F Jan (15°C)
64°F Jul (18°C)
| Annual Average | 63.3°F |
| 17% above US avg | |
| January Average | 59°F (15°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 357 days/yr |
Geography
| Elevation | 3,599 ft (1,097 m) |
| Area | 29.0 sq mi (75.1 km²) |
| Population Density | 33/sq mi |
| Coordinates | 18.8219°N, 99.0939°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
315 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.
| Sep 19, 2017 | 1 km S of Matzaco, Mexico | M7.1 | 71 km | 48 km |
| Nov 15, 2012 | 8 km N of San José Poliutla, Mexico | M6.1 | 146 km | 53 km |
| Jul 21, 2000 | 12 km NW of Jolalpan, Mexico | M5.9 | 49 km | 80 km |
| Jun 16, 2013 | 5 km N of Tequicuilco, Mexico | M5.8 | 75 km | 52 km |
| May 22, 2009 | 3 km E of Chila de la Sal, Mexico | M5.6 | 104 km | 62 km |
| Mar 20, 2015 | 3 km SSE of Xicotlán, Mexico | M5.4 | 107 km | 52 km |
| May 6, 1994 | 7 km NE of San Vicente Boquerón, Mexico | M5.3 | 126 km | 56 km |
| Apr 3, 1997 | 7 km SSE of Piaxtla, Mexico | M5.2 | 119 km | 57 km |
| Feb 28, 2025 | 3 km NE of Pololcingo, Mexico | M5.0 | 65 km | 65 km |
| Feb 3, 2010 | 5 km NE of Xayacatlán de Bravo, Mexico | M4.9 | 136 km | 88 km |
| Jul 19, 1993 | 4 km W of San Antonio del Rosario, Mexico | M4.9 | 140 km | 56 km |
| May 20, 2014 | 20 km WSW of Apaxtla de Castrejón, Mexico | M4.9 | 137 km | 54 km |
| Dec 14, 1999 | 5 km NW of Xicotlán, Mexico | M4.8 | 98 km | 56 km |
| Jun 22, 2017 | 4 km ENE of Tlacotepec, Mexico | M4.7 | 144 km | 56 km |
| May 26, 2005 | 7 km ESE of Cocula, Mexico | M4.7 | 85 km | 93 km |
| Dec 27, 1999 | 4 km SW of Santa Cruz Tacache de Mina, Mexico | M4.7 | 149 km | 57 km |
| Sep 22, 2016 | 3 km NNW of Xochihuehuetlán, Mexico | M4.6 | 117 km | 56 km |
| Apr 22, 1994 | 7 km ESE of Palmar Chico, Mexico | M4.6 | 129 km | 70 km |
| Jun 16, 2007 | 9 km WNW of Xicotlán, Mexico | M4.6 | 96 km | 60 km |
| Aug 5, 1998 | 15 km SE of El Terrero, Mexico | M4.6 | 149 km | 68 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
17 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Erick | Category 3 | 127 mph | 193 km |
| 2024 | John | Category 3 | 121 mph | 185 km |
| 2023 | Otis | Category 5 | 167 mph | 178 km |
| 2021 | Grace | Category 3 | 121 mph | 237 km |
| 2017 | Max | Category 1 | 92 mph | 237 km |
| 2017 | Katia | Category 1 | 81 mph | 288 km |
| 2017 | Franklin | Category 1 | 81 mph | 293 km |
| 2012 | Carlotta | Category 1 | 81 mph | 288 km |
| 2010 | Karl | Category 2 | 104 mph | 242 km |
| 2007 | Dean | Category 2 | 98 mph | 265 km |
| 2007 | Lorenzo | Category 1 | 81 mph | 280 km |
| 1997 | Pauline | Category 2 | 81 mph | 213 km |
| 1996 | Boris | Category 1 | 92 mph | 286 km |
| 1993 | Gert | Category 2 | 98 mph | 267 km |
| 1990 | Diana | Category 2 | 98 mph | 291 km |
| 1989 | Cosme | Category 1 | 81 mph | 214 km |
| 1988 | Debby | Category 1 | 75 mph | 281 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
10 volcanoes within 200 km. Closest: Chichinautzin (29 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Chichinautzin | Volcanic field | 3,930 m (12,894 ft) | 400 | 29 km |
| Popocatepetl | Stratovolcano(es) | 5,393 m (17,694 ft) | 2020 | 54 km |
| Iztaccihuatl | Stratovolcano | 5,230 m (17,159 ft) | Unknown | 62 km |
| Papayo | Lava dome | 3,600 m (11,811 ft) | Unknown | 68 km |
| Toluca, Nevado de | Stratovolcano | 4,680 m (15,354 ft) | -1350 | 77 km |
| Zitacuaro-Valle de Bravo | Caldera | 3,500 m (11,483 ft) | -3050 | 137 km |
| Serdan-Oriental | Tuff cone(s) | 3,485 m (11,434 ft) | Unknown | 178 km |
| Orizaba, Pico de | Stratovolcano | 5,564 m (18,255 ft) | 1846 | 193 km |
| Cumbres, Las | Stratovolcano | 3,940 m (12,927 ft) | -3920 | 195 km |
| Humeros, Los | Caldera(s) | 3,150 m (10,335 ft) | -4470 | 197 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 59°F (15°C) | 0.4 in | Coldest |
| February | 71°F (22°C) | 0.1 in | Driest |
| March | 76°F (24°C) | 0.2 in | |
| April | 79°F (26°C) | 0.4 in | |
| May | 80°F (27°C) | 2.3 in | Warmest |
| June | 77°F (25°C) | 7.6 in | Wettest |
| July | 64°F (18°C) | 6.9 in | |
| August | 75°F (24°C) | 7.1 in | |
| September | 74°F (23°C) | 6.9 in | |
| October | 73°F (23°C) | 2.6 in | |
| November | 71°F (22°C) | 0.5 in | |
| December | 69°F (21°C) | 0.2 in |
San Isidro has a seasonal temperature swing of 21°F / from 59°F in January to 80°F in May. Total annual precipitation is 35.2 inches, with June being the wettest month (7.6") and February the driest (0.1").