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Weather & Climate in San Fernando, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Fernando has a warm climate with an average annual temperature of 75°F (24°C). Winters average 60°F in January while summers reach 85°F in July. The area gets 288 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 26.3 inches (drier than the 38-inch national average). The city sits at an elevation of 144 feet.
Temperature
60°F Jan (16°C)
85°F Jul (29°C)
| Annual Average | 74.5°F |
| 38% above US avg | |
| January Average | 60°F (16°C) |
| July Average | 85°F (29°C) |
| Sunny Days | 288 days/yr |
Geography
| Elevation | 144 ft (44 m) |
| Area | 2,948.6 sq mi (7,636.8 km²) |
| Population Density | 10/sq mi |
| Coordinates | 24.8471°N, 98.1489°W |
| Timezone | America/Monterrey |
Precipitation & Snow
Air Quality
Earthquake History
9 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.
| Apr 6, 2004 | 18 km ESE of Ciudad General Terán, Mexico | M4.5 | 144 km | 38 km |
| Jun 14, 2009 | 35 km E of Ciudad General Terán, Mexico | M4.4 | 129 km | 18 km |
| May 29, 2012 | 31 km NW of San Carlos, Mexico | M4.3 | 104 km | 5 km |
| May 12, 2025 | 13 km E of Ciudad General Terán, Mexico | M4.2 | 149 km | 14 km |
| Jan 19, 2014 | 12 km SSW of China, Mexico | M4.1 | 141 km | 12 km |
| Feb 11, 2014 | 31 km SSE of China, Mexico | M4.0 | 118 km | 41 km |
| Mar 2, 2014 | 15 km SW of China, Mexico | M4.0 | 147 km | 8 km |
| Mar 5, 2014 | 18 km SSW of China, Mexico | M3.9 | 137 km | 10 km |
| Nov 26, 2013 | 22 km S of China, Mexico | M3.6 | 131 km | 37 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
12 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2020 | Hanna | Category 1 | 92 mph | 196 km |
| 2017 | Harvey | Category 3 | 121 mph | 286 km |
| 2013 | Ingrid | Category 1 | 81 mph | 248 km |
| 2010 | Alex | Category 2 | 109 mph | 76 km |
| 2008 | Dolly | Category 2 | 98 mph | 185 km |
| 2005 | Emily | Category 3 | 127 mph | 8 km |
| 2003 | Erika | Category 1 | 75 mph | 68 km |
| 2000 | Keith | Category 1 | 92 mph | 251 km |
| 1999 | Bret | Category 4 | 144 mph | 233 km |
| 1988 | Gilbert | Category 4 | 132 mph | 50 km |
| 1983 | Barry | Category 1 | 81 mph | 90 km |
| 1980 | Allen | Category 5 | 161 mph | 164 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 60°F (16°C) | 1.1 in | Coldest |
| February | 64°F (18°C) | 0.7 in | |
| March | 71°F (21°C) | 0.7 in | Driest |
| April | 76°F (25°C) | 1.4 in | |
| May | 81°F (27°C) | 2.2 in | |
| June | 84°F (29°C) | 3.6 in | |
| July | 85°F (29°C) | 3.1 in | |
| August | 85°F (29°C) | 3.6 in | Warmest |
| September | 82°F (28°C) | 5.2 in | Wettest |
| October | 76°F (24°C) | 2.8 in | |
| November | 69°F (21°C) | 1.0 in | |
| December | 63°F (17°C) | 1.0 in |
San Fernando has a seasonal temperature swing of 25°F / from 60°F in January to 85°F in August. Total annual precipitation is 26.3 inches, with September being the wettest month (5.2") and March the driest (0.7").