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Weather & Climate in Cayuco, Puerto Rico
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Cayuco has a warm climate with an average annual temperature of 80°F (26°C). Winters average 75°F in January while summers reach 83°F in July / relatively mild seasonal variation. The area gets 354 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 45.4 inches. The city sits at an elevation of 1,421 feet.
Temperature
75°F Jan (24°C)
83°F Jul (29°C)
| Annual Average | 79.6°F |
| 47% above US avg | |
| January Average | 75°F (24°C) |
| July Average | 83°F (29°C) |
| Sunny Days | 354 days/yr |
Geography
| Elevation | 1,421 ft (433 m) |
| Area | 0.3 sq mi (0.8 km²) |
| Population Density | 4,280/sq mi |
| Coordinates | 18.2911°N, 66.7393°W |
| Timezone | America/Puerto_Rico |
Precipitation & Snow
Air Quality
Earthquake History
21,858 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.4.
| Jan 7, 2020 | 4 km SSE of Indios, Puerto Rico | M6.4 | 38 km | 6 km |
| Jan 13, 2014 | 61 km N of Hatillo, Puerto Rico | M6.4 | 84 km | 20 km |
| Sep 24, 2019 | 67 km NNW of San Antonio, Puerto Rico | M6.0 | 104 km | 10 km |
| Jan 11, 2020 | 5 km SE of Maria Antonia, Puerto Rico | M5.9 | 40 km | 5 km |
| May 16, 2010 | 4 km E of Moca, Puerto Rico | M5.8 | 37 km | 113 km |
| Jan 6, 2020 | 14 km S of Indios, Puerto Rico | M5.8 | 48 km | 6 km |
| Jan 7, 2020 | 0 km NW of Magas Arriba, Puerto Rico | M5.6 | 30 km | 9 km |
| May 15, 2024 | 92 km NNW of San Antonio, Puerto Rico | M5.6 | 131 km | 7 km |
| Jan 7, 2020 | 11 km S of Tallaboa, Puerto Rico | M5.6 | 44 km | 10 km |
| Dec 11, 2000 | 65 km N of Isabela, Puerto Rico | M5.5 | 96 km | 53 km |
| Feb 4, 2008 | Puerto Rico region | M5.5 | 84 km | 15 km |
| May 2, 2020 | 6 km S of Tallaboa, Puerto Rico | M5.4 | 39 km | 9 km |
| Jul 3, 2020 | 9 km SSE of La Parguera, Puerto Rico | M5.3 | 52 km | 3 km |
| Aug 1, 1993 | 68 km SSE of Emajagua, Puerto Rico | M5.3 | 147 km | 25 km |
| Nov 23, 1992 | 28 km NNW of San Antonio, Puerto Rico | M5.3 | 68 km | 31 km |
| Jan 15, 2020 | Puerto Rico region | M5.2 | 51 km | 5 km |
| Jan 11, 2020 | 19 km S of Indios, Puerto Rico | M5.2 | 52 km | 10 km |
| Jan 10, 2020 | 4 km S of Maria Antonia, Puerto Rico | M5.2 | 42 km | 9 km |
| Mar 21, 2003 | 61 km SE of Boca de Yuma, Dominican Republic | M5.1 | 149 km | 97 km |
| Mar 12, 2009 | 66 km N of Brenas, Puerto Rico | M5.1 | 95 km | 15 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
23 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Erin | Category 4 | 144 mph | 244 km |
| 2024 | Ernesto | Category 1 | 75 mph | 185 km |
| 2022 | Fiona | Category 2 | 98 mph | 50 km |
| 2019 | Dorian | Category 1 | 86 mph | 147 km |
| 2017 | Maria | Category 5 | 173 mph | 19 km |
| 2017 | Irma | Category 5 | 178 mph | 116 km |
| 2014 | Gonzalo | Category 3 | 115 mph | 271 km |
| 2011 | Irene | Category 1 | 92 mph | 50 km |
| 2010 | Earl | Category 4 | 132 mph | 200 km |
| 2008 | Omar | Category 4 | 132 mph | 241 km |
| 2004 | Frances | Category 4 | 144 mph | 259 km |
| 2004 | Jeanne | Category 1 | 81 mph | 137 km |
| 2000 | Debby | Category 1 | 75 mph | 101 km |
| 1999 | Lenny | Category 4 | 155 mph | 204 km |
| 1998 | Georges | Category 3 | 121 mph | 27 km |
| 1996 | Bertha | Category 3 | 115 mph | 141 km |
| 1996 | Hortense | Category 1 | 86 mph | 37 km |
| 1995 | Luis | Category 4 | 144 mph | 274 km |
| 1995 | Marilyn | Category 3 | 115 mph | 127 km |
| 1989 | Hugo | Category 4 | 150 mph | 95 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 6.1 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1918 | PUERTO RICO: MONA PASSAGE | Eruption + Earthquake | 6.1 m | 144 | 66 km |
| 2020 | PUERTO RICO | Earthquake | 0.1 m | 4 | 38 km |
| 1918 | PUERTO RICO | Earthquake | — | — | 53 km |
Source: NOAA/NCEI Historical Tsunami Database.
Wildfire History
6 wildfires (100+ acres) recorded within 100 km. Largest: CAMPAMENTO SANTIAGO (3,927 acres, 2005).
| Year | Name | Acres Burned | Distance |
| 2005 | CAMPAMENTO SANTIAGO | 3,927 | 58 km |
| 2007 | UNNAMED | 3,896 | 57 km |
| 2005 | UNNAMED | 1,888 | 64 km |
| 2005 | PISTA DE SALINAS CARR 3 | 1,137 | 55 km |
| 2005 | UNNAMED | 725 | 74 km |
| 2007 | CARR 304 | 606 | 46 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 75°F (24°C) | 3.2 in | |
| February | 69°F (21°C) | 2.6 in | Coldest, Driest |
| March | 70°F (21°C) | 3.9 in | |
| April | 72°F (22°C) | 7.1 in | |
| May | 74°F (23°C) | 10.1 in | |
| June | 75°F (24°C) | 7.1 in | |
| July | 83°F (29°C) | 7.0 in | Warmest |
| August | 76°F (24°C) | 10.3 in | |
| September | 75°F (24°C) | 11.9 in | Wettest |
| October | 75°F (24°C) | 11.7 in | |
| November | 73°F (23°C) | 7.5 in | |
| December | 71°F (21°C) | 3.9 in |
Cayuco has a seasonal temperature swing of 14°F / from 69°F in February to 83°F in July. Total annual precipitation is 86.1 inches, with September being the wettest month (11.9") and February the driest (2.6").