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Adjuntas, Puerto Rico

Full City Profile

5,080 Population 72/sq mi density
1,647 ft Elevation 502 meters
80°F Avg Temperature 27°C
Adjuntas has a warm climate with an average annual temperature of 80°F (27°C). Winters average 77°F in January while summers reach 83°F in July. The area gets 356 sunny days per year. Annual precipitation totals 33.1 inches. The area receives 0.0 inches of snow annually.

Temperature

77°F Jan (25°C) 83°F Jul (29°C)
Annual Average80.0°F
48% above US avg
January Average77°F (25°C)
July Average83°F (29°C)
Sunny Days356 days/yr

Geography

Elevation1,647 ft (502 m)
Area70.7 sq mi (183.1 km²)
Population Density72/sq mi
Coordinates18.1627°N, 66.7221°W
TimezoneAmerica/Puerto_Rico

Precipitation & Snow

Annual Rainfall 33.1"
13% below US avg
Snowfall 0.0"
Wettest Month (Oct) 10.00"
Driest Month (Feb) 2.01"

Air Quality

Earthquake History

21,017 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 25 km
Jan 13, 2014 61 km N of Hatillo, Puerto Rico M6.4 98 km
Sep 24, 2019 67 km NNW of San Antonio, Puerto Rico M6.0 117 km
Jan 11, 2020 5 km SE of Maria Antonia, Puerto Rico M5.9 27 km
Jan 6, 2020 14 km S of Indios, Puerto Rico M5.8 34 km
May 16, 2010 4 km E of Moca, Puerto Rico M5.8 45 km
Jan 7, 2020 11 km S of Tallaboa, Puerto Rico M5.6 30 km
Jan 7, 2020 0 km NW of Magas Arriba, Puerto Rico M5.6 17 km
May 15, 2024 92 km NNW of San Antonio, Puerto Rico M5.6 144 km
Feb 4, 2008 Puerto Rico region M5.5 98 km
Dec 11, 2000 65 km N of Isabela, Puerto Rico M5.5 110 km
May 2, 2020 6 km S of Tallaboa, Puerto Rico M5.4 25 km
Jul 3, 2020 9 km SSE of La Parguera, Puerto Rico M5.3 42 km
Aug 1, 1993 68 km SSE of Emajagua, Puerto Rico M5.3 136 km
Nov 23, 1992 28 km NNW of San Antonio, Puerto Rico M5.3 80 km
Jan 15, 2020 Puerto Rico region M5.2 42 km
Jan 11, 2020 19 km S of Indios, Puerto Rico M5.2 38 km
Jan 10, 2020 4 km S of Maria Antonia, Puerto Rico M5.2 31 km
Mar 21, 2003 61 km SE of Boca de Yuma, Dominican Republic M5.1 149 km
Mar 12, 2009 66 km N of Brenas, Puerto Rico M5.1 108 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year Name Category Closest
2025 Erin Category 4 257 km
2024 Ernesto Category 1 200 km
2022 Fiona Category 2 44 km
2019 Dorian Category 1 153 km
2017 Maria Category 5 29 km
2017 Irma Category 5 128 km
2014 Gonzalo Category 3 280 km
2011 Irene Category 1 59 km
2010 Earl Category 4 212 km
2008 Omar Category 4 229 km
2004 Frances Category 4 271 km
2004 Jeanne Category 1 143 km
2000 Debby Category 1 114 km
1999 Lenny Category 4 190 km
1998 Georges Category 3 20 km
1996 Bertha Category 3 152 km
1996 Hortense Category 1 26 km
1995 Luis Category 4 281 km
1995 Marilyn Category 3 135 km
1989 Hugo Category 4 99 km
Source: NOAA IBTrACS (Cat 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 77 km
2020 PUERTO RICO Earthquake 0.1 m 4 25 km
1918 PUERTO RICO Earthquake 60 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Wildfire History

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

Year Name Acres Distance
2005 CAMPAMENTO SANTIAGO 3,927 51 km
2007 UNNAMED 3,896 50 km
2005 UNNAMED 1,888 57 km
2005 PISTA DE SALINAS CARR 3 1,137 47 km
2005 UNNAMED 725 67 km
2007 CARR 304 606 39 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 77°F (25°C) 2.1 in
February 71°F (22°C) 2.0 in Coldest, Driest
March 71°F (22°C) 2.5 in
April 73°F (23°C) 4.7 in
May 75°F (24°C) 7.5 in
June 76°F (25°C) 5.2 in
July 83°F (29°C) 5.3 in Warmest
August 77°F (25°C) 8.4 in
September 76°F (25°C) 9.8 in
October 76°F (24°C) 10.0 in Wettest
November 74°F (23°C) 6.4 in
December 72°F (22°C) 2.8 in

Adjuntas has a seasonal temperature swing of 13°F / from 71°F in February to 83°F in July. Total annual precipitation is 66.8 inches, with October being the wettest month (10.0") and February the driest (2.0").

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