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Weather & Climate in San Ignacio Río Muerto, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Ignacio Río Muerto has a warm climate with an average annual temperature of 76°F (24°C). Winters average 62°F in January while summers reach 89°F in July. The area gets 315 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 11.8 inches (drier than the 38-inch national average). The city sits at an elevation of 52 feet.
Temperature
62°F Jan (17°C)
89°F Jul (32°C)
| Annual Average | 75.5°F |
| 40% above US avg | |
| January Average | 62°F (17°C) |
| July Average | 89°F (32°C) |
| Sunny Days | 315 days/yr |
Geography
| Elevation | 52 ft (16 m) |
| Area | 501.3 sq mi (1,298.3 km²) |
| Population Density | 15/sq mi |
| Coordinates | 27.4161°N, 110.2447°W |
| Timezone | America/Hermosillo |
Precipitation & Snow
Air Quality
Earthquake History
141 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| Oct 19, 2013 | 98 km SW of Etchoropo, Mexico | M6.6 | 148 km | 9 km |
| Aug 28, 1995 | 95 km SW of Etchoropo, Mexico | M6.6 | 147 km | 12 km |
| Mar 12, 2003 | 87 km SW of Paredón Colorado, Mexico | M6.4 | 102 km | 10 km |
| Jan 19, 2018 | 79 km NNE of Loreto, Mexico | M6.3 | 116 km | 10 km |
| Mar 13, 2007 | 85 km ENE of Loreto, Mexico | M6.0 | 132 km | 26 km |
| Jul 30, 2006 | 76 km E of Mulegé, Mexico | M5.9 | 114 km | 10 km |
| Feb 25, 2007 | 94 km E of Loreto, Mexico | M5.9 | 142 km | 10 km |
| Mar 24, 2000 | 51 km SSW of San Carlos, Mexico | M5.6 | 106 km | 10 km |
| Aug 10, 2014 | 65 km WSW of San Carlos, Mexico | M5.5 | 140 km | 10 km |
| Oct 1, 1996 | 70 km NE of Loreto, Mexico | M5.5 | 121 km | 10 km |
| Jul 31, 2021 | 60 km SW of San Carlos, Mexico | M5.5 | 125 km | 10 km |
| Jan 18, 2001 | 99 km SW of Etchoropo, Mexico | M5.3 | 149 km | 10 km |
| Apr 26, 2011 | 73 km SW of San Carlos, Mexico | M5.3 | 127 km | 11 km |
| Jul 3, 2024 | 77 km NNE of Loreto, Mexico | M5.3 | 117 km | 10 km |
| Jan 21, 2022 | 76 km SSW of Bahía de Lobos, Mexico | M5.3 | 95 km | 10 km |
| Aug 6, 2022 | 67 km WSW of San Carlos, Mexico | M5.2 | 141 km | 10 km |
| Sep 3, 1996 | 84 km ENE of Loreto, Mexico | M5.2 | 139 km | 10 km |
| May 28, 2006 | 88 km NNE of Loreto, Mexico | M5.2 | 110 km | 10 km |
| Apr 18, 2024 | 84 km ENE of Loreto, Mexico | M5.2 | 130 km | 10 km |
| Oct 3, 1992 | 58 km SSW of San Carlos, Mexico | M5.2 | 111 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
11 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2016 | Newton | Category 1 | 81 mph | 199 km |
| 2014 | Odile | Category 1 | 92 mph | 214 km |
| 2009 | Jimena | Category 2 | 104 mph | 228 km |
| 2008 | Norbert | Category 2 | 92 mph | 130 km |
| 2007 | Henriette | Category 1 | 75 mph | 101 km |
| 2003 | Marty | Category 1 | 81 mph | 171 km |
| 1998 | Isis | Category 1 | 75 mph | 286 km |
| 1996 | Fausto | Category 1 | 75 mph | 201 km |
| 1995 | Ismael | Category 1 | 81 mph | 232 km |
| 1986 | Newton | Category 1 | 86 mph | 91 km |
| 1982 | Paul | Category 2 | 98 mph | 228 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 62°F (17°C) | 0.8 in | Coldest |
| February | 64°F (18°C) | 0.6 in | |
| March | 67°F (19°C) | 0.2 in | |
| April | 72°F (22°C) | 0.0 in | Driest |
| May | 78°F (25°C) | 0.0 in | |
| June | 85°F (30°C) | 0.2 in | |
| July | 89°F (32°C) | 2.3 in | Warmest |
| August | 88°F (31°C) | 2.8 in | Wettest |
| September | 87°F (30°C) | 2.8 in | |
| October | 80°F (27°C) | 1.0 in | |
| November | 70°F (21°C) | 0.4 in | |
| December | 64°F (18°C) | 0.6 in |
San Ignacio Río Muerto has a seasonal temperature swing of 27°F / from 62°F in January to 89°F in July. Total annual precipitation is 11.8 inches, with August being the wettest month (2.8") and April the driest (0.0").