Annual Average Temperatures & Rainfall in Puerto Rico





The tables below give the annual average temperatures and rainfall for cities and popular vacation spots in Puerto Rico. There's also information here on the average humidity and ocean temperature at San Juan.

The temperature and rain measurements are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

One site, Pico Del Este, is much cooler than others on the list. That's because it's a high mountain peak, at 3448 feet (1050 metres) elevation, in the El Yunque Caribbean National Forest.

Temperature

Average annual temperatures in Puerto Rico
High °F Low °F Place High °C Low °C
78 70 Aguirre 26 21
72 65 Aibonito 22 19
77 67 Caguas 25 19
81 75 Ceiba 27 24
77 71 Dorado 25 22
81 75 Guayama 27 24
77 70 Isabela 25 21
77 69 Juncos 25 21
81 73 La Parguera 27 23
78 67 Lajas 26 19
80 73 Levittown 26 23
77 69 Manati 25 21
71 65 Maricao 22 18
79 70 Mayagüez 26 21
80 71 Mona Island 27 22
65 62 Pico Del Este 18 17
78 66 Ponce 26 19
81 75 San Juan27 24

Ocean Temperature at San Juan, Puerto Rico averages 81 degrees Fahrenheit (27 degrees Celsius).

Rainfall

Total yearly precipitation averages. Days are when it rains at least 0.01 inches (0.25 millimetres).
Days Place Inches Milli­metres
103 Aguirre 40.4 1025
171 Aibonito 61.8 1569
215 Caguas 64.8 1645
196 Ceiba 50.9 1292
177 Dorado 65.9 1673
185 Guayama 54.4 1382
169 Isabela 64.1 1627
189 Juncos 67.5 1714
La Parguera 42.5 1079
116 Lajas 44.9 1141
Levittown 75.4 1914
163 Manati 61.9 1572
Maricao 92.9 2360
125 Mayagüez 51.3 1302
127 Mona Island 38.8 986
107 Ponce 37.5 953
208 San Juan 59.9 1521

Relative Humidity at San Juan, Puerto Rico over the year averages 79 percent in the morning and 65 percent in the afternoon.

References

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

National Oceanographic Data Center. NODC Coastal Water Temperature Guide (CWTG).

Puerto Rico
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