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Weather & Climate in Río Viejo, Mexico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Río Viejo has a warm climate with an average annual temperature of 78°F (26°C). Winters average 70°F in January while summers reach 83°F in July / relatively mild seasonal variation. The area gets 254 sunny days per year, above the national average. Annual precipitation totals 45.0 inches. The city sits at an elevation of 33 feet.
Temperature
70°F Jan (21°C)
83°F Jul (28°C)
| Annual Average | 78.0°F |
| 44% above US avg | |
| January Average | 70°F (21°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 254 days/yr |
Geography
| Elevation | 33 ft (10 m) |
| Area | 652.3 sq mi (1,689.5 km²) |
| Population Density | 2/sq mi |
| Coordinates | 22.3931°N, 105.5356°W |
| Timezone | America/Mazatlan |
Precipitation & Snow
Air Quality
Earthquake History
18 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.1.
| Nov 13, 2001 | 109 km SW of Barrón, Mexico | M6.1 | 148 km | 33 km |
| Apr 1, 1991 | 112 km SW of Barrón, Mexico | M5.6 | 150 km | 10 km |
| Sep 14, 2010 | 60 km WSW of Villa Juárez, Mexico | M5.6 | 109 km | 16 km |
| Feb 14, 1999 | 120 km WSW of Santa Cruz, Mexico | M5.1 | 149 km | 33 km |
| Feb 11, 2007 | 102 km SW of Santa Cruz, Mexico | M5.0 | 142 km | 41 km |
| Nov 13, 2001 | 93 km SW of Los Pozos, Mexico | M4.8 | 130 km | 33 km |
| Jan 21, 2007 | 99 km SW of Santa Cruz, Mexico | M4.8 | 139 km | 10 km |
| Sep 14, 2010 | 74 km WSW of Villa Juárez, Mexico | M4.5 | 125 km | 16 km |
| Oct 3, 2024 | 120 km WSW of Palmar de Cuautla, Mexico | M4.4 | 137 km | 10 km |
| Oct 28, 1998 | 4 km NNE of Santiago de Pochotitán, Mexico | M4.4 | 123 km | 10 km |
| Jul 4, 2008 | 8 km E of El Jicote, Mexico | M4.4 | 93 km | 59 km |
| Sep 22, 2011 | 113 km WSW of Santa Cruz, Mexico | M4.3 | 137 km | 16 km |
| Apr 26, 2017 | 98 km SW of Santa Cruz, Mexico | M4.2 | 137 km | 10 km |
| Mar 28, 2017 | 98 km WSW of Santa Cruz, Mexico | M4.1 | 126 km | 10 km |
| Sep 15, 2010 | 89 km WSW of Villa Juárez, Mexico | M4.0 | 132 km | 20 km |
| Feb 16, 2023 | 64 km WSW of Palmar de Cuautla, Mexico | M4.0 | 83 km | 16 km |
| Aug 24, 2001 | 11 km E of Yago, Mexico | M4.0 | 86 km | 22 km |
| Mar 15, 2001 | 3 km ESE of Atonalisco, Mexico | M4.0 | 111 km | 104 km |
| Oct 29, 1998 | 19 km NNE of Santiago de Pochotitán, Mexico | M3.9 | 118 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
24 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2023 | Lidia | Category 4 | 138 mph | 212 km |
| 2022 | Roslyn | Category 4 | 127 mph | 33 km |
| 2022 | Orlene | Category 3 | 115 mph | 72 km |
| 2021 | Pamela | Category 1 | 75 mph | 186 km |
| 2021 | Nora | Category 1 | 86 mph | 200 km |
| 2021 | Enrique | Category 1 | 86 mph | 257 km |
| 2018 | Willa | Category 4 | 138 mph | 44 km |
| 2015 | Patricia | Category 1 | — | 241 km |
| 2011 | Jova | Category 1 | — | 261 km |
| 2006 | Lane | Category 3 | 127 mph | 142 km |
| 2006 | John | Category 3 | 115 mph | 255 km |
| 2002 | Kenna | Category 5 | 150 mph | 55 km |
| 1998 | Madeline | Category 1 | 86 mph | 149 km |
| 1995 | Henriette | Category 1 | 86 mph | 254 km |
| 1994 | Rosa | Category 2 | 104 mph | 39 km |
| 1993 | Lidia | Category 2 | 98 mph | 286 km |
| 1993 | Calvin | Category 1 | — | 278 km |
| 1989 | Kiko | Category 2 | 98 mph | 255 km |
| 1986 | Roslyn | Category 1 | 75 mph | 164 km |
| 1986 | Newton | Category 1 | 75 mph | 221 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Isabel, Isla (71 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Isabel, Isla | Tuff cone(s) | 95 m (312 ft) | Unknown | 71 km |
| Ceboruco | Stratovolcano | 2,280 m (7,480 ft) | 1875 | 177 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 70°F (21°C) | 1.2 in | Coldest |
| February | 71°F (22°C) | 0.3 in | |
| March | 73°F (23°C) | 0.1 in | |
| April | 76°F (24°C) | 0.0 in | Driest |
| May | 80°F (27°C) | 0.0 in | |
| June | 84°F (29°C) | 3.0 in | Warmest |
| July | 83°F (28°C) | 11.5 in | |
| August | 83°F (28°C) | 12.6 in | Wettest |
| September | 83°F (28°C) | 10.2 in | |
| October | 82°F (28°C) | 3.9 in | |
| November | 78°F (26°C) | 1.3 in | |
| December | 73°F (23°C) | 0.8 in |
Río Viejo has a seasonal temperature swing of 13°F / from 70°F in January to 84°F in June. Total annual precipitation is 45.0 inches, with August being the wettest month (12.6") and April the driest (0.0").