Weather in Puerto Rico in October

As trade winds bring cooling breezes off of the Atlantic, Puerto Rico begins to see temperatures cooling off a bit in October. Travelers should be advised that severe tropical weather is still a possibility during this month, although not as great as during August and September.

Typical Weather in October

Temperatures in Puerto Rico during October generally vary between an average high during the day of 88.0 degrees and an average low at night of 75.0 degrees


Puerto Rico in October: Key Facts
Monthly Averages
High Low Rainfall
No. of Days
with Rain
88.0° F 75.0° F 5.5 N.A.

On any given day during October in Puerto Rico, you can expect early morning temperatures to be around 79.8 degrees. The temperature will rise over the course of the typical October day, reaching somewhere around 86.0 degrees by early afternoon. By early evening, temperatures in Puerto Rico generally decline to around 79.9 degrees. Overall, temperatures in Puerto Rico during October average around 80.8 degrees.


October Temperatures in Puerto Rico by Time of Day
Early Morning Late Morning Early Afternoon Late Afternoon Early Evening Overall
79.8° F 85.8° F 86.0° F 83.5° F 79.9° F 80.8° F



During October, rain is most likely to occur around 2:00 PM, and least likely to occur around 2:00 AM. As shown below, if a thunderstorm occurs in October, it is most likely to occur around 2:00 PM.


October Rainfall in Puerto Rico by Time of Day
  Percent Frequencies of Hourly Observations
Hour Rain
2:00 AM 5.4 % 0.7 %
5:00 AM 6.3 % 0.6 %
8:00 AM 5.8 % 0.4 %
11:00 AM 5.4 % 0.6 %
2:00 PM 9.5 % 5.2 %
5:00 PM 9 % 2.8 %
8:00 PM 6.6 % 0.7 %
11:00 PM 6.8 % 0.9 %
ALL 6.9 % 1.5 %


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