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Weather & Climate in Arenillas, Ecuador
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Arenillas has a warm climate with an average annual temperature of 78°F (26°C). Winters average 78°F in January while summers reach 79°F in July / relatively mild seasonal variation. The area gets 330 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 78.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 135 feet.
Temperature
78°F Jan (25°C)
79°F Jul (26°C)
| Annual Average | 78.4°F |
| 45% above US avg | |
| January Average | 78°F (25°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 135 ft (41 m) |
| Area | 206.8 sq mi (535.6 km²) |
| Population Density | 126/sq mi |
| Coordinates | -3.5540°N, 80.0668°W |
| Timezone | America/Guayaquil |
Precipitation & Snow
Air Quality
Earthquake History
262 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 | 89 km | 68 km |
| May 21, 2005 | 55 km NW of Zorritos, Peru | M6.3 | 106 km | 40 km |
| Aug 3, 1999 | 56 km ENE of Zaruma, Ecuador | M5.9 | 101 km | 88 km |
| Jun 30, 1997 | 11 km NNW of La Breita, Peru | M5.8 | 117 km | 33 km |
| Feb 4, 2019 | 24 km SSE of Guayaquil, Ecuador | M5.8 | 130 km | 70 km |
| May 22, 2000 | 5 km WNW of Máncora, Peru | M5.8 | 129 km | 33 km |
| Feb 10, 1990 | 58 km NNW of Zorritos, Peru | M5.6 | 95 km | 57 km |
| Jun 5, 2017 | Peru-Ecuador border region | M5.6 | 66 km | 49 km |
| Mar 29, 1991 | 22 km NE of Máncora, Peru | M5.6 | 104 km | 38 km |
| Apr 22, 2007 | 45 km NNW of Máncora, Peru | M5.4 | 130 km | 38 km |
| Aug 3, 2014 | 24 km NE of Máncora, Peru | M5.4 | 103 km | 16 km |
| Aug 21, 2023 | 6 km N of Machala, Ecuador | M5.4 | 41 km | 40 km |
| May 8, 2025 | 12 km NNW of Cañaveral, Peru | M5.4 | 77 km | 45 km |
| Mar 5, 1997 | 13 km E of Zorritos, Peru | M5.3 | 56 km | 37 km |
| Feb 13, 2021 | 33 km W of Celica, Ecuador | M5.3 | 70 km | 69 km |
| Aug 11, 2004 | 66 km NW of Tumbes, Peru | M5.3 | 97 km | 42 km |
| Jan 26, 2014 | 25 km WNW of Cañaveral, Peru | M5.3 | 94 km | 11 km |
| Feb 16, 1990 | 55 km NNW of Tumbes, Peru | M5.3 | 84 km | 76 km |
| Jun 29, 2001 | 19 km NW of Papayal, Peru | M5.3 | 99 km | 33 km |
| Aug 18, 1992 | 12 km W of Baláo, Ecuador | M5.3 | 75 km | 27 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 | 62 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (25°C) | 3.5 in | |
| February | 80°F (27°C) | 4.3 in | |
| March | 80°F (27°C) | 5.2 in | Warmest, Wettest |
| April | 80°F (27°C) | 3.1 in | |
| May | 79°F (26°C) | 1.2 in | |
| June | 77°F (25°C) | 0.7 in | |
| July | 79°F (26°C) | 0.2 in | |
| August | 75°F (24°C) | 0.2 in | Coldest, Driest |
| September | 76°F (24°C) | 0.4 in | |
| October | 76°F (25°C) | 0.4 in | |
| November | 77°F (25°C) | 0.4 in | |
| December | 79°F (26°C) | 0.7 in |
Arenillas has a seasonal temperature swing of 5°F / from 75°F in August to 80°F in March. Total annual precipitation is 20.3 inches, with March being the wettest month (5.2") and August the driest (0.2").