Puerto Rico weather in September 2025

Expect 25°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Puerto Rico in September based on long-term weather averages. There is usually 1 day with some rainfall and 12 mm of average monthly rainfall in September.

  • 25°C maximum daytime temperature in September in Puerto Rico25
    25°C max day temperature
  • 8 hours of sunshine per day
  • 1 day with some rainfall in September in Puerto Rico1
    1 day with some rainfall
  • 18°C minimum night-time temperature in September in Puerto Rico18
    18°C min night temperature
  • 12 hours of daylight per day in September in Puerto Rico12
    12 hours of daylight per day
  • Moderate heat & humidity in September in Puerto RicoM
    Moderate heat & humidity
  • 12 mm monthly rainfall in September in Puerto Rico12
    12 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Puerto Rico9
    9 (Very High) UV index
  • 23°C sea temperature in September in Puerto Rico23
    23°C sea temperature

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The September weather guide for Gran Canaria (Puerto Rico) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Gran Canaria

How hot is it in Puerto Rico in September?

Daytime temperatures usually reach 25°C in Puerto Rico in September with moderate heat and humidity, falling to 18°C at night.

How sunny is it in Puerto Rico in September?

There are normally 8 hours of bright sunshine each day in Puerto Rico in September - that's 64% of daylight hours.

How warm is the sea around Puerto Rico in September?

The average sea temperature around Puerto Rico in September is 23°C.

Does it ever rain in Puerto Rico in September?

There is usually 1 day with some rain in Puerto Rico in September and the average monthly rainfall is 12mm.

Puerto Rico September sunrise & sunset times

Browse the sunrise and sunset times for Puerto Rico in September 2025. Select a month to view Puerto Rico sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:42 19:23
Monday, 15th September 2025 06:48 19:07
Tuesday, 30th September 2025 06:55 18:50

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