October Weather in Puerto Rico

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The tables below give the normal October 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 October temperatures in Puerto Rico
High °F Low °F Place High °C Low °C
90 70 Arecibo 32 21
83 67 Cayey 28 19
84 72 Dorado 29 22
89 74 Fajardo 31 23
89 76 Guayama 32 24
87 71 Isabela 31 22
87 72 Manati 31 22
80 66 Maricao 27 19
90 71 Mayagüez 32 22
91 72 Mona Island 33 22
71 64 Pico Del Este 22 18
90 72 Ponce 32 22
89 70 Rincón 31 21
88 77 San Juan 31 25
92 67 San Sebastián 33 20
89 66 Utuado 31 19

Ocean Temperature at San Juan, Puerto Rico averages 83 degrees Fahrenheit (28 degrees Celsius) in October.

Rainfall

Average total precipitation in October. Days are when it rains at least 0.01 inches (0.25 millimetres).
Days Place Inches Millimetres
14 Arecibo   6.6 167
15 Cayey   6.3 160
15 Dorado   5.8 146
18 Fajardo   8.0 203
16 Guayama   8.3 211
17 Isabela   7.5 191
15 Manati   6.0 153
  – Maricao 12.2 309
15 Mayagüez   7.2 183
13 Mona Island   5.5 139
28 Pico Del Este 17.0 432
13 Ponce   6.1 155
  – Rincón   7.6 193
18 San Juan   5.6 142
19 Utuado   9.9 251

Relative Humidity at San Juan, Puerto Rico in October averages 80 percent in the morning and 67 percent in the afternoon.

Hurricanes and Tropical Storms

No hurricanes are expected near Puerto Rico in October. Chances that a named tropical storm will affect Puerto Rico this month are around four percent.

References

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

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

NOAA. National Weather Service. National Hurricane Center.

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Average Weather

Puerto Rico
Temperature & Rainfall

WEATHER AVERAGES
Weather Extremes