How warm is Puerto Rico in September?

Typical highs are about 87°F and the sea is about 86°F. That is warm enough for long swims without a wetsuit.

Is September hurricane season in Puerto Rico?

September falls in the tropical storm season; the typical risk on a given day is high. It peaks in September. Travel insurance and flexible bookings help.

How crowded is Puerto Rico in September?

Typically moderate, around Labor Day weekend and Mexican Independence Day. The quietest months are usually September and October.

Puerto Rico in September

September is one of the weakest months for a beach trip to Puerto Rico: a typical day grades B, the 11th best of the 12 months. Expect highs near 87°F, water around 86°F and about a 71% chance of rain on a given day. Beaches are typically moderate (Labor Day weekend and Mexican Independence Day). It is hurricane season, with high storm risk.

Typical dayB11th of 12 months

Highs / water87°FSea 86°F

Rain chance71%on a given day

Waves3.3 fttypical

CrowdsModerateLabor Day weekend

Storm riskHighhurricane season

Puerto Rico month by month

Typical grade and high for each month. Higher is better: A+ to F.

August: B · September: B · October: B+. The best months are usually January, February and May, and the weakest are August and September.

Best beaches in Puerto Rico in September

Resorts with the best typical September, and their grades for the next few days.

Beach	Typical Sep	This week
Hotel Rumbao, A Tribute Portfolio Hotel	B+	SatB+SunA-MonA-TueA-WedA-
Villa Herencia Hotel	B+	SatB+SunA-MonA-TueA-WedA-
S.J. Suites Hotel	B+	SatB+SunB+MonA-TueA-WedA-
Jade (St. Clair Collection)	B+	SatCSunBMonC+TueB-WedC+
Holiday Inn Express	B+	SatB+SunB+MonA-TueA-WedA-
Comfort Inn & Suites	B+	SatB-SunBMonB+TueB+WedA-
Hampton Inn & Suites San Juan	B+	SatCSunBMonC+TueB-WedC+
The St. Regis Bahia Beach Resort, Puerto Rico	B+	SatCSunBMonC+TueC+WedB

Grades for the next few days from Veabird's beach forecast, updated Oct 3, 18:00 UTC. Higher is better: A+ to F.

Better beach options in September

Elsewhere in the Caribbean, Aruba, Bonaire & Curaçao (A-), the US Virgin Islands (A-) and the BVI (A-) usually grade higher in September. Further afield: Maui (A), Oʻahu (A) and Kauaʻi (A). Every destination in September.

Questions

Is September a good time to visit Puerto Rico?: September is one of the weakest months for a beach trip to Puerto Rico: a typical day grades B, the 11th best of the 12 months. Expect highs near 87°F, water around 86°F and about a 71% chance of rain on a given day. Beaches are typically moderate (Labor Day weekend and Mexican Independence Day). It is hurricane season, with high storm risk.
How warm is Puerto Rico in September?: Typical highs are about 87°F and the sea is about 86°F. That is warm enough for long swims without a wetsuit.
Is September hurricane season in Puerto Rico?: September falls in the tropical storm season; the typical risk on a given day is high. It peaks in September. Travel insurance and flexible bookings help.
How crowded is Puerto Rico in September?: Typically moderate, around Labor Day weekend and Mexican Independence Day. The quietest months are usually September and October.

Plan it

Puerto Rico: this week's forecast, beach by beach
Caribbean Beach Report: this week, updated every Monday
Compare dates and beaches on the map

Typical-month numbers from Veabird's year-ahead outlook for the 44 resorts here (median resort): 6 years of ERA5 climate normals, the seasonal pattern of the Atlantic sargassum belt, holiday crowd calendars and historical storm tracks. Any given year can differ; check the 16-day forecast before you go.