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Weather & Climate in Rosario, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rosario has a warm climate with an average annual temperature of 73°F (23°C). Winters average 60°F in January while summers reach 84°F in July. The area gets 289 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 26.1 inches (drier than the 38-inch national average). The city sits at an elevation of 1,388 feet.
Temperature
60°F Jan (16°C)
84°F Jul (29°C)
| Annual Average | 72.5°F |
| 34% above US avg | |
| January Average | 60°F (16°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 289 days/yr |
Geography
| Elevation | 1,388 ft (423 m) |
| Area | 282.5 sq mi (731.8 km²) |
| Population Density | 10/sq mi |
| Coordinates | 27.8411°N, 109.3681°W |
| Timezone | America/Hermosillo |
Precipitation & Snow
Air Quality
Earthquake History
3 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.3.
| Sep 22, 1999 | 38 km SW of Pozo Dulce, Mexico | M4.3 | 150 km | 10 km |
| Apr 24, 2010 | 45 km SSW of Madera, Mexico | M4.3 | 150 km | 20 km |
| Sep 6, 1990 | 20 km SSW of Bahía de Lobos, Mexico | M4.1 | 138 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
8 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2016 | Newton | Category 1 | 75 mph | 297 km |
| 2008 | Norbert | Category 2 | 92 mph | 114 km |
| 2007 | Henriette | Category 1 | 75 mph | 191 km |
| 2003 | Marty | Category 1 | 81 mph | 264 km |
| 1996 | Fausto | Category 1 | 75 mph | 239 km |
| 1995 | Ismael | Category 1 | 81 mph | 251 km |
| 1986 | Newton | Category 1 | 86 mph | 134 km |
| 1982 | Paul | Category 2 | 98 mph | 241 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 60°F (16°C) | 1.4 in | Coldest |
| February | 63°F (17°C) | 0.8 in | |
| March | 65°F (19°C) | 0.4 in | |
| April | 71°F (22°C) | 0.2 in | |
| May | 77°F (25°C) | 0.1 in | Driest |
| June | 85°F (29°C) | 1.2 in | Warmest |
| July | 84°F (29°C) | 7.2 in | Wettest |
| August | 82°F (28°C) | 7.1 in | |
| September | 81°F (27°C) | 3.9 in | |
| October | 75°F (24°C) | 1.5 in | |
| November | 67°F (19°C) | 0.8 in | |
| December | 61°F (16°C) | 1.6 in |
Rosario has a seasonal temperature swing of 25°F / from 60°F in January to 85°F in June. Total annual precipitation is 26.1 inches, with July being the wettest month (7.2") and May the driest (0.1").