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Guayanilla, Puerto Rico
Full City Profile
5,213
Population
78/sq mi density
33 ft
Elevation
10 meters
79°F
Avg Temperature
26°C
Guayanilla has a warm climate with an average annual temperature of 79°F (26°C). Winters average 75°F in January while summers reach 82°F in July. The area gets 354 sunny days per year. Annual precipitation totals 46.6 inches. The area receives 0.0 inches of snow annually.
Temperature
75°F Jan (24°C)
82°F Jul (28°C)
| Annual Average | 79.2°F |
| 47% above US avg | |
| January Average | 75°F (24°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 354 days/yr |
Geography
| Elevation | 33 ft (10 m) |
| Area | 66.9 sq mi (173.3 km²) |
| Population Density | 78/sq mi |
| Coordinates | 18.0191°N, 66.7918°W |
| Timezone | America/Puerto_Rico |
Precipitation & Snow
Air Quality
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 | 87 km |
| 2020 | PUERTO RICO | Earthquake | 0.1 m | 4 | 7 km |
| 1918 | PUERTO RICO | Earthquake | — | — | 65 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 75°F (24°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 | 82°F (28°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 |
Guayanilla has a seasonal temperature swing of 11°F / from 71°F in February to 82°F in July. Total annual precipitation is 66.8 inches, with October being the wettest month (10.0") and February the driest (2.0").