Puerto Rico in September

September30°C average high

September is one of Puerto Rico's warmest months, with daytime heat above the yearly average.

Warmest monthsMay to October

This stretch sets the upper range for average daytime heat.

September211mm average rain

September is one of Puerto Rico's wettest months, so rain is likely to be a major planning factor.

Driest monthsJanuary to April

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

September7.7 hours average sun

September sits close to Puerto Rico's yearly sunshine average, so it is a middle-of-the-pack month for bright days.

Brightest monthsMarch to April and June to August

This stretch has the strongest sunshine in the monthly averages.

September17°C average sea

September is one of Puerto Rico's warmest sea months, when swimming comfort is usually strongest.

Warmest seaMay to December

Sea temperatures are usually near 16°C in this stretch, so swimming comfort is at its strongest.

September61 weather score

September is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.

Best weather monthsFebruary to April

These months have the strongest weather score in the monthly averages.