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 measures of climate are averages of historical data collected at weather stations over several decades.

One site, Pico Del Este, is much cooler and rainier 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
91	71	Arecibo	33	22
84	69	Cayey	29	21
85	74	Dorado	30	23
89	76	Fajardo	32	24
89	77	Guayama	32	25
87	72	Isabela	31	22
88	73	Manati	31	23
80	66	Maricao	27	19
91	72	Mayagüez	33	22
92	73	Mona Island	33	23
70	64	Pico Del Este	21	18
91	74	Ponce	33	23
90	73	Rincón	32	23
89	78	San Juan	32	26
93	68	San Sebastián	34	20
90	67	Utuado	32	19

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
11	Arecibo	3.6	91
17	Cayey	5.6	143
16	Dorado	6.1	155
16	Fajardo	5.9	150
16	Guayama	5.5	140
15	Isabela	5.2	132
14	Manati	4.6	117
–	Maricao	9.0	229
14	Mayagüez	6.6	168
11	Mona Island	2.7	69
30	Pico Del Este	14.1	357
8	Ponce	2.6	67
–	Rincón	5.9	151
19	San Juan	5.1	129
13	Utuado	4.8	122

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.