Puerto Rico weather in September
Planning a journey to Puerto Rico this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:
What is the weather like in Puerto Rico in September?
September in Puerto Rico generally has very warm temperatures, with precipitation levels ranging from high to heavy.
You can expect very warm maximum daytime temperatures of around 31°C and nighttime temperatures around 25°C in San Juan. While the given temperatures for day and night are typical, there may be days that feel warmer. Make sure you're dressed in a way that keeps you cool and comfortable.
In September, precipitation varies across different areas. From high rainfall in El Combate with an average of 104 mm to heavy rainfall in Humacao with 192 mm. Going by our weather data, it is the wettest month of the year in San Juan. The city San Juan usually sees around 236 hours of sunlight, indicating many sunny days.
For specific regional insights in Puerto Rico for September, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Puerto Rico climate page.
Where to go in Puerto Rico in September
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Popular destinations in Puerto Rico
What is the weather like in September for the 5 most popular destinations in Puerto Rico?
Average weather in San Juan
In September San Juan generally has very high temperatures with maximum daytime temperatures around 31°C, minimum nighttime temperatures around 25°C and high monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Rincon
In September Rincon generally has very high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and high monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Vieques
In September Vieques generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and heavy monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Culebra
In September Culebra generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 27°C and high monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Fajardo
In September Fajardo generally has very high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 26°C and heavy monthly rainfall. So on average the conditions are tolerable that month.
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Is your destination not in the list? Have a look at other destinations in Puerto Rico.
Is September the best time to visit Puerto Rico?
In our view, September might not be the best time to travel to Puerto Rico with often tolerable weather in San Juan.
Generally speaking, the best visiting conditions can be found in January, February, March and December offering mostly perfect weather in San Juan. The weather in May, July, August, September, October and November, on the other hand, tends to be tolerable.
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 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 climate conditions. Find out where to go with our weather planner.