May Weather in Puerto Rico





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

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 May temperatures in Puerto Rico
High °F Low °F Place High °C Low °C
89 69 Arecibo 32 21
82 67 Cayey 28 19
86 72 Dorado 30 22
88 73 Fajardo 31 23
88 75 Guayama 31 24
86 70 Isabela 30 21
86 71 Manati 30 22
79 65 Maricao 26 18
89 70 Mayagüez 32 21
90 72 Mona Island 32 22
69 62 Pico Del Este 21 17
89 72 Ponce 32 22
88 72 Rincón 31 22
88 76 San Juan 31 25
92 68 San Sebastián 33 20
88 65 Utuado 31 19

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

Rainfall

Average total precipitation in May. Days are when it rains at least 0.01 inches (0.25 millimetres).
Days Place Inches Milli­metres
12 Arecibo 6.8 173
16 Cayey 5.5 140
14 Dorado 6.5 166
17 Fajardo 8.4 212
15 Guayama 5.8 146
15 Isabela 7.9 200
14 Manati 7.6 192
Maricao 12.0 306
13 Mayagüez 6.8 172
12 Mona Island 4.4 111
28 Pico Del Este 18.1 461
11 Ponce 4.6 118
Rincón 6.8 172
16 San Juan 5.9 150
16 Utuado 9.3 237

Relative Humidity at San Juan, Puerto Rico in May averages 78 percent in the morning and 66 percent in the afternoon.

References

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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

Puerto Rico
Temperature & Rainfall
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