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Weather & Climate in San Sebastián del Sur, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Sebastián del Sur enjoys a temperate climate with an average annual temperature of 67°F (19°C). Winters average 61°F in January while summers reach 70°F in July / relatively mild seasonal variation. The area gets 354 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 21.7 inches (drier than the 38-inch national average). The city sits at an elevation of 5,066 feet.
Temperature
61°F Jan (16°C)
70°F Jul (21°C)
| Annual Average | 66.9°F |
| 24% above US avg | |
| January Average | 61°F (16°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 354 days/yr |
Geography
| Elevation | 5,066 ft (1,544 m) |
| Area | 176.7 sq mi (457.6 km²) |
| Population Density | 0/sq mi |
| Coordinates | 19.7945°N, 103.4743°W |
| Timezone | America/Mexico_City |
Precipitation & Snow
Air Quality
Earthquake History
221 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M8.0.
| Oct 9, 1995 | 1995 Colima-Jalisco, Mexico Earthquake | M8.0 | 112 km | 33 km |
| Jan 22, 2003 | 16 km SSW of Cuyutlán, Mexico | M7.6 | 132 km | 24 km |
| May 20, 2001 | 33 km SW of El Colomo, Mexico | M6.3 | 149 km | 33 km |
| Jan 12, 2025 | 18 km SE of Aquila, Mexico | M6.2 | 144 km | 39 km |
| Oct 12, 1995 | 13 km SSE of Cuyutlán, Mexico | M6.0 | 123 km | 16 km |
| Jan 22, 2003 | 29 km SSW of El Colomo, Mexico | M5.9 | 144 km | 10 km |
| Oct 6, 1995 | 23 km SSW of El Colomo, Mexico | M5.8 | 138 km | 33 km |
| Feb 20, 2013 | 13 km W of La Placita de Morelos, Mexico | M5.6 | 140 km | 18 km |
| May 8, 2001 | 18 km SSW of Cuyutlán, Mexico | M5.5 | 134 km | 33 km |
| Mar 7, 2000 | 7 km ENE of Jalipa, Mexico | M5.4 | 105 km | 10 km |
| Sep 29, 1992 | 8 km SSE of Tecalitlán, Mexico | M5.3 | 48 km | 95 km |
| Aug 15, 1999 | 27 km WSW of Los Olivos, Mexico | M5.3 | 87 km | 86 km |
| May 9, 1996 | 13 km SSW of Manzanillo, Mexico | M5.3 | 130 km | 33 km |
| Nov 5, 2002 | 0 km E of La Manzanilla, Mexico | M5.3 | 148 km | 10 km |
| Jul 31, 2006 | 23 km SW of Cerro de Ortega, Mexico | M5.3 | 138 km | 10 km |
| Sep 23, 2022 | 7 km WSW of La Placita de Morelos, Mexico | M5.2 | 145 km | 41 km |
| Mar 20, 1993 | 8 km SSE of Villa Victoria, Mexico | M5.1 | 123 km | 59 km |
| May 31, 2007 | 30 km SSW of Cuyutlán, Mexico | M5.1 | 145 km | 11 km |
| Oct 10, 1995 | 9 km SSE of Cuyutlán, Mexico | M5.1 | 122 km | 33 km |
| Oct 22, 2009 | 19 km WSW of Cuyutlán, Mexico | M5.0 | 131 km | 53 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
28 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2024 | John | Category 1 | 75 mph | 289 km |
| 2023 | Lidia | Category 4 | 138 mph | 155 km |
| 2023 | Beatriz | Category 1 | 86 mph | 157 km |
| 2021 | Rick | Category 2 | 104 mph | 181 km |
| 2021 | Nora | Category 1 | 86 mph | 191 km |
| 2021 | Enrique | Category 1 | 92 mph | 256 km |
| 2019 | Lorena | Category 1 | 81 mph | 149 km |
| 2015 | Patricia | Category 5 | 213 mph | 125 km |
| 2015 | Carlos | Category 1 | 92 mph | 208 km |
| 2013 | Erick | Category 1 | 81 mph | 232 km |
| 2012 | Bud | Category 3 | 109 mph | 235 km |
| 2011 | Jova | Category 3 | 115 mph | 163 km |
| 2011 | Beatriz | Category 1 | 92 mph | 147 km |
| 2009 | Andres | Category 1 | 81 mph | 208 km |
| 2006 | John | Category 4 | 127 mph | 232 km |
| 2006 | Lane | Category 1 | 86 mph | 270 km |
| 2002 | Kenna | Category 4 | 138 mph | 292 km |
| 1996 | Alma | Category 2 | 104 mph | 229 km |
| 1996 | Hernan | Category 1 | 86 mph | 141 km |
| 1996 | Boris | Category 1 | 92 mph | 181 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
7 tsunamis recorded within 500 km. Highest wave on record: 13.9 m (46 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1818 | CENTRAL MEXICO | Earthquake | 13.9 m | 2,000 | 91 km |
| 1995 | S. MEXICO | Earthquake | 11.0 m | 50 | 112 km |
| 1932 | CENTRAL MEXICO | Earthquake | 10.0 m | 75 | 113 km |
| 1932 | CENTRAL MEXICO | Earthquake | 10.0 m | 400 | 50 km |
| 1932 | CENTRAL MEXICO | Earthquake | 1.0 m | — | 81 km |
| 2003 | S. MEXICO | Earthquake | 0.6 m | 29 | 132 km |
| 1941 | MEXICO | Earthquake | — | 84 | 134 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Colima (35 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Colima | Stratovolcano(es) | 3,850 m (12,631 ft) | 2019 | 35 km |
| Mascota Volcanic Field | Pyroclastic cone(s) | 2,560 m (8,399 ft) | Unknown | 169 km |
| Michoacan-Guanajuato | Pyroclastic cone(s) | 3,860 m (12,664 ft) | 1952 | 181 km |
| Ceboruco | Stratovolcano | 2,280 m (7,480 ft) | 1875 | 183 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 61°F (16°C) | 1.1 in | Coldest |
| February | 62°F (17°C) | 0.3 in | |
| March | 65°F (18°C) | 0.2 in | Driest |
| April | 69°F (20°C) | 0.2 in | |
| May | 72°F (22°C) | 1.2 in | |
| June | 72°F (22°C) | 6.5 in | Warmest |
| July | 70°F (21°C) | 7.8 in | Wettest |
| August | 70°F (21°C) | 7.0 in | |
| September | 69°F (21°C) | 6.6 in | |
| October | 68°F (20°C) | 3.3 in | |
| November | 65°F (18°C) | 0.9 in | |
| December | 62°F (16°C) | 0.7 in |
San Sebastián del Sur has a seasonal temperature swing of 11°F / from 61°F in January to 72°F in June. Total annual precipitation is 35.8 inches, with July being the wettest month (7.8") and March the driest (0.2").