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Cayey, Puerto Rico

Full City Profile

18,494 Population 270/sq mi density
1,302 ft Elevation 397 meters
78°F Avg Temperature 26°C
Cayey has a warm climate with an average annual temperature of 78°F (26°C). Winters average 74°F in January while summers reach 81°F in July. The area gets 351 sunny days per year. Annual precipitation totals 50.0 inches. The area receives 0.0 inches of snow annually.

Temperature

74°F Jan (24°C) 81°F Jul (27°C)
Annual Average78.3°F
45% above US avg
January Average74°F (24°C)
July Average81°F (27°C)
Sunny Days351 days/yr

Geography

Elevation1,302 ft (397 m)
Area68.5 sq mi (177.3 km²)
Population Density270/sq mi
Coordinates18.1119°N, 66.1660°W
TimezoneAmerica/Puerto_Rico

Precipitation & Snow

Annual Rainfall 50.0"
32% above US avg
Snowfall 0.0"
Wettest Month (Oct) 8.74"
Driest Month (Feb) 2.60"

Air Quality

Earthquake History

19,898 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.4. Most recent: M0.0 on Aug 30, 2025.

Jan 7, 2020 4 km SSE of Indios, Puerto Rico M6.4 70 km
Jan 13, 2014 61 km N of Hatillo, Puerto Rico M6.4 124 km
Jan 11, 2020 5 km SE of Maria Antonia, Puerto Rico M5.9 75 km
May 16, 2010 4 km E of Moca, Puerto Rico M5.8 101 km
Jan 6, 2020 14 km S of Indios, Puerto Rico M5.8 74 km
Jan 7, 2020 11 km S of Tallaboa, Puerto Rico M5.6 64 km
Jan 7, 2020 0 km NW of Magas Arriba, Puerto Rico M5.6 65 km
Dec 11, 2000 65 km N of Isabela, Puerto Rico M5.5 146 km
Feb 4, 2008 Puerto Rico region M5.5 128 km
May 2, 2020 6 km S of Tallaboa, Puerto Rico M5.4 62 km
Nov 23, 1992 28 km NNW of San Antonio, Puerto Rico M5.3 127 km
Aug 1, 1993 68 km SSE of Emajagua, Puerto Rico M5.3 92 km
Jul 3, 2020 9 km SSE of La Parguera, Puerto Rico M5.3 92 km
Jan 15, 2020 Puerto Rico region M5.2 93 km
Jan 11, 2020 19 km S of Indios, Puerto Rico M5.2 74 km
Jan 10, 2020 4 km S of Maria Antonia, Puerto Rico M5.2 78 km
Aug 14, 2009 92 km N of Suárez, Puerto Rico M5.1 136 km
Mar 12, 2009 66 km N of Brenas, Puerto Rico M5.1 109 km
Sep 24, 2019 59 km N of San Antonio, Puerto Rico M5.1 149 km
Jan 7, 2020 14 km S of Tallaboa, Puerto Rico M5.0 63 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

25 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 5.

Year Name Category Closest
2025 Erin Category 5 243 km
2024 Ernesto Category 1 227 km
2022 Fiona Category 1 85 km
2019 Dorian Category 1 112 km
2017 Maria Category 5 10 km
2017 Irma Category 5 119 km
2014 Gonzalo Category 3 242 km
2011 Irene Category 1 30 km
2010 Earl Category 4 189 km
2008 Omar Category 4 184 km
2004 Frances Category 4 259 km
2004 Jeanne Category 1 201 km
2000 Debby Category 1 99 km
1999 Lenny Category 4 160 km
1999 Jose Category 1 250 km
1998 Georges Category 3 17 km
1996 Bertha Category 3 121 km
1996 Hortense Category 1 67 km
1995 Luis Category 4 242 km
1995 Marilyn Category 3 96 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

5 tsunamis recorded within 500 km. Highest wave on record: 15.2 m (50 ft).

Year Location Cause Max Wave Deaths Distance
1867 VIRGIN ISLANDS Earthquake 15.2 m 24 124 km
1918 PUERTO RICO: MONA PASSAGE Eruption + Earthquake 6.1 m 144 126 km
1868 VIRGIN ISLANDS Earthquake 1.5 m — 113 km
2020 PUERTO RICO Earthquake 0.1 m 4 70 km
1918 PUERTO RICO Earthquake — — 117 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Wildfire History

7 wildfires (100+ acres) within 100 km. Largest: CAMPAMENTO SANTIAGO (3,927 ac, 2005).

Year Name Acres Distance
2005 CAMPAMENTO SANTIAGO 3,927 14 km
2007 UNNAMED 3,896 15 km
2005 UNNAMED 1,888 12 km
2005 PISTA DE SALINAS CARR 3 1,137 19 km
2005 UNNAMED 725 18 km
2013 PUERTO NEGRO 631 86 km
2007 CARR 304 606 93 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 74°F (24°C) 3.7 in
February 70°F (21°C) 2.6 in Coldest, Driest
March 71°F (21°C) 2.8 in
April 72°F (22°C) 4.3 in
May 74°F (23°C) 6.7 in
June 76°F (24°C) 6.1 in
July 81°F (27°C) 6.2 in Warmest
August 76°F (25°C) 8.1 in
September 76°F (24°C) 8.1 in
October 75°F (24°C) 8.7 in Wettest
November 74°F (23°C) 6.4 in
December 71°F (22°C) 4.3 in

Cayey has a seasonal temperature swing of 11°F / from 70°F in February to 81°F in July. Total annual precipitation is 68.0 inches, with October being the wettest month (8.7") and February the driest (2.6").

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