Puerto Rico weather in September
What is the weather like in Puerto Rico in September?
The weather conditions in Puerto Rico in September are generally poor.
During September in Puerto Rico, the average maximum temperature varies from high in Maunabo with 28°C (83°F) to very high in Vieques with 32°C (89°F). These night and day temperatures are average and some days may be even warmer. So be prepared and dress for the heat.
Precipitation in September varies from heavy in Utuado with an average of 221mm (8.7 inches) of rainfall to heavy in La Tosca with 302mm (12 inches).
It is the wettest month of the year in San Juan.
It is also generally a
sunny
time of year with an average of 236 hours of sunshine in San Juan during the entire month.
To learn more about the weather conditions in specific areas of Puerto Rico, check out the map below.
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 (88°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Rincon
In September Rincon generally has high temperatures with maximum daytime temperatures around 30°C (85°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Vieques
In September Vieques generally has very high temperatures with maximum daytime temperatures around 32°C (89°F), minimum nighttime temperatures around 24°C (74°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Culebra
In September Culebra generally has very high temperatures with maximum daytime temperatures around 32°C (89°F), minimum nighttime temperatures around 24°C (74°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Fajardo
In September Fajardo generally has very high temperatures with maximum daytime temperatures around 32°C (89°F), minimum nighttime temperatures around 24°C (74°F) and heavy monthly rainfall. So on average the conditions are poor 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 go to Puerto Rico?
In our opinion September is not the best time to visit Puerto Rico with commonly poor weather in San Juan.
On average the best time to visit Puerto Rico is in March with generally perfect weather in San Juan.
The worst months are May, June, July, August, September, October and November that can have poor weather conditions.
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.