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Weather & Climate in San Ignacio, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Ignacio enjoys a temperate climate with an average annual temperature of 67°F (19°C). Winters average 52°F in January while summers reach 82°F in July. The area gets 304 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 17.7 inches (drier than the 38-inch national average). The city sits at an elevation of 2,598 feet.
Temperature
52°F Jan (11°C)
82°F Jul (28°C)
| Annual Average | 66.8°F |
| 24% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 304 days/yr |
Geography
| Elevation | 2,598 ft (792 m) |
| Area | 936.7 sq mi (2,426.1 km²) |
| Population Density | 1/sq mi |
| Coordinates | 30.6965°N, 110.9218°W |
| Timezone | America/Hermosillo |
Precipitation & Snow
Air Quality
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.
| Oct 16, 1999 | 10 km ESE of Imuris, Mexico | M4.5 | 18 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: MURPHY COMPLEX (64,407 acres, 2011).
| Year | Name | Acres Burned | Distance |
| 2011 | MURPHY COMPLEX | 64,407 | 87 km |
| 2002 | WALKER | 17,438 | 74 km |
| 2022 | TONTO CANYON | 16,989 | 78 km |
| 2011 | BULL | 16,339 | 72 km |
| 1988 | PEAK | 16,078 | 98 km |
| 2022 | SAN RAFAEL | 12,203 | 87 km |
| 2012 | CAMPINI | 11,893 | 86 km |
| 2023 | BEEHIVE | 11,087 | 93 km |
| 2013 | SOLDIER BASIN | 11,052 | 86 km |
| 2016 | LA SIERRA | 11,035 | 75 km |
| 2011 | ARLENE | 10,586 | 86 km |
| 2021 | ALAMO | 10,478 | 75 km |
| 2016 | MULE RIDGE | 8,619 | 85 km |
| 2008 | WHITE TANK | 8,479 | 100 km |
| 2012 | SCHOOL CANYON | 8,374 | 88 km |
| 2011 | DUKE | 7,656 | 81 km |
| 2011 | PENA | 5,936 | 76 km |
| 2016 | CUMERO | 5,616 | 100 km |
| 2008 | ALAMO | 4,847 | 78 km |
| 1985 | UNNAMED | 4,629 | 90 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 52°F (11°C) | 1.1 in | Coldest |
| February | 54°F (12°C) | 1.1 in | |
| March | 58°F (15°C) | 0.7 in | |
| April | 64°F (18°C) | 0.3 in | |
| May | 71°F (22°C) | 0.1 in | Driest |
| June | 80°F (27°C) | 0.6 in | |
| July | 82°F (28°C) | 4.7 in | Warmest, Wettest |
| August | 81°F (27°C) | 4.1 in | |
| September | 78°F (25°C) | 1.7 in | |
| October | 69°F (20°C) | 0.8 in | |
| November | 59°F (15°C) | 0.9 in | |
| December | 53°F (11°C) | 1.6 in |
San Ignacio has a seasonal temperature swing of 30°F / from 52°F in January to 82°F in July. Total annual precipitation is 17.7 inches, with July being the wettest month (4.7") and May the driest (0.1").