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Weather & Climate in San Sebastián de Yuluc, Ecuador
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Sebastián de Yuluc enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 48°F in January while summers reach 60°F in July / relatively mild seasonal variation. The area gets 322 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 131.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 4,905 feet.
Temperature
48°F Jan (9°C)
60°F Jul (16°C)
| Annual Average | 60.2°F |
| 11% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 60°F (16°C) |
| Sunny Days | 322 days/yr |
Geography
| Elevation | 4,905 ft (1,495 m) |
| Area | 1.1 sq mi (2.7 km²) |
| Population Density | 0/sq mi |
| Coordinates | -3.3708°N, 79.4384°W |
| Timezone | America/Guayaquil |
Precipitation & Snow
Air Quality
Earthquake History
217 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.8.
| Mar 18, 2023 | 14 km NNW of Baláo, Ecuador | M6.8 | 80 km | 68 km |
| Aug 3, 1999 | 56 km ENE of Zaruma, Ecuador | M5.9 | 32 km | 88 km |
| Feb 4, 2019 | 24 km SSE of Guayaquil, Ecuador | M5.8 | 116 km | 70 km |
| Jun 12, 1991 | 9 km SSW of Alausí, Ecuador | M5.8 | 136 km | 94 km |
| Mar 26, 1995 | 13 km NNW of Naranjito, Ecuador | M5.6 | 147 km | 91 km |
| Jun 5, 2017 | Peru-Ecuador border region | M5.6 | 128 km | 49 km |
| Feb 22, 2019 | 14 km ESE of Eloy Alfaro, Ecuador | M5.5 | 130 km | 71 km |
| May 8, 2025 | 12 km NNW of Cañaveral, Peru | M5.4 | 150 km | 45 km |
| Aug 21, 2023 | 6 km N of Machala, Ecuador | M5.4 | 62 km | 40 km |
| Apr 28, 2015 | 6 km NNW of Milagro, Ecuador | M5.4 | 144 km | 89 km |
| Aug 18, 1992 | 12 km W of Baláo, Ecuador | M5.3 | 76 km | 27 km |
| Mar 5, 1997 | 13 km E of Zorritos, Peru | M5.3 | 129 km | 37 km |
| Feb 13, 2021 | 33 km W of Celica, Ecuador | M5.3 | 126 km | 69 km |
| Mar 25, 2014 | 17 km ESE of Coronel Marcelino Maridueña, Ecuador | M5.3 | 126 km | 35 km |
| Feb 16, 1990 | 55 km NNW of Tumbes, Peru | M5.3 | 141 km | 76 km |
| May 8, 2023 | 8 km W of Azogues, Ecuador | M5.2 | 89 km | 90 km |
| Nov 5, 1995 | 6 km NE of Llacao, Ecuador | M5.2 | 90 km | 33 km |
| Apr 25, 2023 | 10 km NNW of Baláo, Ecuador | M5.2 | 75 km | 69 km |
| Jun 21, 2025 | 8 km NW of Naranjal, Ecuador | M5.2 | 88 km | 50 km |
| Jan 26, 2008 | 27 km S of Playas, Ecuador | M5.2 | 119 km | 64 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 1.0 m (3 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1953 | N. PERU | Earthquake | 1.0 m | 6 | 129 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Sangay (195 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Sangay | Stratovolcano | 5,286 m (17,343 ft) | 2020 | 195 km |
| Licto | Pyroclastic cone(s) | 3,336 m (10,945 ft) | Unknown | 199 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 5.1 in | Coldest |
| February | 71°F (22°C) | 6.8 in | |
| March | 72°F (22°C) | 8.2 in | Wettest |
| April | 72°F (22°C) | 6.1 in | Warmest |
| May | 71°F (22°C) | 2.9 in | |
| June | 70°F (21°C) | 1.4 in | |
| July | 60°F (16°C) | 1.0 in | |
| August | 71°F (21°C) | 0.9 in | Driest |
| September | 71°F (22°C) | 1.2 in | |
| October | 71°F (22°C) | 1.5 in | |
| November | 71°F (22°C) | 1.5 in | |
| December | 71°F (22°C) | 2.8 in |
San Sebastián de Yuluc has a seasonal temperature swing of 24°F / from 48°F in January to 72°F in April. Total annual precipitation is 39.4 inches, with March being the wettest month (8.2") and August the driest (0.9").