Puerto Rico weather in September 2025
Puerto Rico weather in September 2025
Day
32 °C
Night
23 °C
Sea
29 °C
Precipitation
158 mm
in month
Rainy days
17 days
in month
Daylight
12 hours
average
Sunshine
8 hours
average
Humidity
77 %
Day
32 °C
Night
23 °C
Sea
29 °C
Precipitation
158 mm
in month
Rainy days
17 days
in month
Daylight
12 hours
average
Sunshine
8 hours
average
Humidity
77 %
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Weather overview and FAQs
Weather overview
In September in Puerto Rico, the average air temperature ranges from 32 °C (89 °F) during the day to 23 °C (74 °F) at night. There are 17 days of rain on average, where the rainfall is 158 mm (6.21 in).
Is September a good month to visit Puerto Rico?
There are good conditions for visiting in Puerto Rico in September. The daily temperatures in this month reach pleasant 32 °C (89 °F). The seawater temperature reaches ideal 29 °C (84 °F). At night, temperatures hover around a pleasant 23 °C (74 °F).
What is the temperature in Puerto Rico during the day in September?
In Puerto Rico in September, the average daily temperatures will be 32 °C (89 °F). The great temperature for lying by the sea or pool and sunbathing, everywhere else you will probably be a bit hot. Don't forget to drink during the day, in these temperatures you should hydrate yourself a lot.
What is the sea temperature in September in Puerto Rico?
In Puerto Rico in September expect the sea to be warm at 29 °C (84 °F). This temperature is someone's dream come true, while for someone it may no longer be ideal for the purpose of refreshment.
How heavy is the precipitation in September in Puerto Rico?
In Puerto Rico in September, there is 158 mm (6.21 in) rainfall, which means on average 5 mm (0.21 in) rainfall per day.
How many days of precipitation on average can I expect in Puerto Rico in September?
There are 17 days, which are rainy in September in Puerto Rico, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 3.9 days of the week, or in general - 55 % days.
What is the air temperature in September in Puerto Rico at night?
The average night temperature in Puerto Rico in September is 23 °C (74 °F). A very pleasant temperature for long evening walks, fun over a drink outside, or doing sports in the morning. If possible, look for a hotel with air conditioning.
How humid is Puerto Rico in September?
Humidity in Puerto Rico in September is 77 %. This humidity is rather above average, but except for sensitive individuals, it should not be a problem.
Is it hot in September in Puerto Rico?
In September in Puerto Rico, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
How long is the day (from dawn till dusk) in Puerto Rico in September?
The length of daylight in Puerto Rico in September is 12 hours.
How many sunny hours can I expect in September in Puerto Rico?
There is an average length of sunshine of 8 hours per day in Puerto Rico in September.
How windy is Puerto Rico in September?
In Puerto Rico in September, there will be an average wind scale of 3.