Month-specific sea-surface temperature · Puerto Rico

La Parguera Sea Temperature in September

30.5°C

86.9°F

In September, sea-surface temperature near La Parguera has a historical monthly average of 30.5°C. This is not the reading for any particular holiday date.

Across 2023–2025, the lowest and highest yearly September monthly means were 30.2–30.7°C. These are not daily extremes.

Previous month

August · 30.0°C

Change into September: +0.5°C

Next month

October · 30.5°C

Change into next month: +0.0°C

Can you swim or snorkel in La Parguera in September?

At 30.5°C our temperature-only guide describes the water as very warm water. Comfort depends on your cold tolerance, immersion time and wind. A historical average cannot determine whether conditions are safe on any given day.

Do you need a wetsuit?

Swimwear is usually enough; a rash guard adds sun protection.

Which beach should you choose?

Look for a beach sheltered from the actual forecast waves and wind on your visit. Exposure, currents and entry conditions vary even where water temperatures are similar. Follow local warnings.

Check the current waves, wind and snorkeling forecast →

A live forecast does not predict a future September. Check again close to your trip.

La Parguera Sea Temperature: All 12 Months

Choose a month for available historical evidence, month comparisons and swim guidance. Missing history is clearly marked and never presented as a long-term normal.

January 27.4°C February 26.9°C March 27.5°C April 28.0°C May 29.0°C June 29.4°C July 29.6°C August 30.0°C September 30.5°C October 30.5°C November 29.3°C December 28.3°C

Data source and limitations

Source: Open-Meteo Marine API, MeteoFrance sea-surface temperature; 2023–2025. Marine model grid near 17.97, -67.05. Based on 3 yearly monthly means and 2160 recorded samples. Source methodology.

Modelled sea-surface temperatures do not establish underwater visibility, wildlife, calm currents or safe entry.