Puerto RicoCountries Puerto Rico September Temperatures
Puerto RicoCountries Puerto Rico
Puerto Rico Puerto Rico  
Temperatures in September
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Temperature in Puerto Rico in September

Puerto Rico, experiences maximum daytime temperatures in September ranging from 27°C in Adjuntas to 31°C in Dorado. Nighttime temperatures generally drop to 25°C in Dorado and 19°C in Adjuntas.

What is the temperature of the different cities in Puerto Rico in September?

Explore the map below to discover average September temperatures at the top destinations in Puerto Rico. For a deeper dive, simply click on any destination dot.

Weather conditions Weather
Temperatures
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

Select a Month of Interest

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Puerto Rico, check out our Puerto Rico's climate page.

  • What is the warmest city in September in Puerto Rico?
    • According to our recent database analysis, Dorado is the warmest city. It experiences an average maximum daytime temperature of approximately 31°C and rarely drops below 25°C during the night.

  • What is the coldest city in September in Puerto Rico?
    • Our database indicates that in September, Adjuntas is the city with the coolest temperatures in Puerto Rico. You can expect daytime highs of 27°C and nighttime lows close to 19°C.

  • How much sun does Puerto Rico get in September?
    • San Juan enjoys approximately 236 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.

  • What is the water's temperature in September?
    • The water temperature averages approximately 29°C in San Juan this month, which is a bit warm water for swimming. For many people, water temperatures around 29°C might feel quite warm. Especially when compared to average swimming pool temperatures which are typically between 25°C and 28°C.

    Interested in more climate information?

    Weather and climate has detailed information for every country 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 recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.