Puerto Rico temperatures in September
Puerto Rico in September has maximum daytime temperatures ranging from high in Maunabo with 28°C (83°F) to very high temperatures in Vieques with 32°C (89°F). Nighttime temperatures generally drop to 24°C (74°F) in Vieques and 26°C (79°F) in Maunabo.
What is the temperature of the different cities in Puerto Rico in September?
Find the average daytime temperatures in September for the most popular destinations in Puerto Rico on the map below. Click on a destination dot for more detailed information.






Interested in more climate information?
We have much more information about the climate in Puerto Rico.
Interested in the weather conditions in a specific month? Select the month below.
Weather and climate has detailed information for almost all countries in the world. Are you going to Puerto Rico? Get detailed historical weather averages for many cities in Puerto Rico.
Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.