July Weather in Puerto Rico





The tables below give the normal July temperatures and rainfall for cities and popular vacation spots in Puerto Rico. There's also information here on hurricanes, plus this month's average humidity and ocean temperature.

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 July temperatures in Puerto Rico
High °F Low °F Place High °C Low °C
88 74 Aguirre 31 23
81 68 Aibonito 27 20
90 70 Caguas 32 21
89 77 Ceiba 32 25
86 73 Dorado 30 23
90 78 Guayama 32 25
86 73 Isabela 30 23
88 72 Juncos 31 22
90 76 La Parguera 32 24
92 70 Lajas 34 21
88 76 Levittown 31 24
86 72 Manati 30 22
80 67 Maricao 27 20
90 73 Mayagüez 32 23
92 73 Mona Island 34 23
70 63 Pico Del Este 21 17
92 69 Ponce 33 21
89 78 San Juan 32 25

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

Rainfall

Average total precipitation in July. Days are when it rains at least 0.01 inches (0.25 millimetres).
Days Place Inches Milli­metres
10 Aguirre 3.6 91
14 Aibonito 4.7 118
17 Caguas 5.9 151
19 Ceiba 4.3 109
17 Dorado 7.1 180
17 Guayama 5.5 139
15 Isabela 5.0 128
16 Juncos 7.0 179
La Parguera 2.7 68
9 Lajas 3.5 89
Levittown 7.1 180
14 Manati 5.4 136
Maricao 8.0 204
13 Mayagüez 5.8 148
12 Mona Island 2.3 58
8 Ponce 2.8 72
19 San Juan 6.0 153

Relative Humidity at San Juan, Puerto Rico in July averages 79 percent in the morning and 67 percent in the afternoon.

Hurricanes and Tropical Storms

Puerto Rico expects no hurricanes in July, although there's a two percent chance this month that a named tropical storm will approach land.

References

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

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

NOAA. National Weather Service. National Hurricane Center.

Puerto Rico
Temperature & Rainfall
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