Scuba Diving · Puerto Rico

Scuba Diving in Puerto Rico

Clear Caribbean water with real structure: the La Parguera wall on the southwest shelf drops into deep blue, while Fajardo and the islands of Culebra and Vieques offer reef and drift diving to the east. Warm and diveable year-round.

Live conditions, water-clarity forecast, and thermocline data for scuba diving in Puerto Rico. Open the app for a live verdict, tappable factor breakdown, and an 8-day forecast, free, no signup needed.

Open live conditions →

Conditions snapshot: Jul 15, 2026

Visibility

33 ft

13–59 ft range

Water

85°F

Wind

0 kts

Wave

3.6 ft

Swell

3.5 ft

Period

4.5s

Snapshot from Jul 15, 2026. Live values, factor breakdowns, and 8-day forecast in the app.

Notable species

Puerto Rico is known for:

HogfishMutton SnapperGrouperBarracudaTarpon

Typical water visibility

Summer visibility around Puerto Rico is commonly reported in the 40–90 ft range, a community-guidance estimate, not a measurement. Rain, river discharge, swell mixing, and seasonality can shift real conditions dramatically day to day.

That's exactly why Submarius exists. The in-app clarity forecast blends satellite turbidity (NOAA CoastWatch Kd490), river-plume detection (USGS), wave-mixing physics, and community post-dive reports to estimate how far you'll actually see tomorrow, with explicit uncertainty bounds, not a seasonal average.

How the clarity forecast works →

What Submarius shows for Puerto Rico

Verdict score (0–10). Aggregates wind, swell, tide, moon, and water clarity into one decisive number.
Best window. The 2–3 hour stretch each day when conditions peak.
8-day forecast. Auto-scaled line graph showing which day this week is trending good.
Water clarity forecast. Secchi-depth estimate with uncertainty bounds and the next best viz window.
Free, anonymous. Check conditions with location on, no signup until you want to save spots or post reports.

Safety in the water

Submarius ships OCEARCH tagged-shark alerts, community shark sightings, SOS, and buddy GPS sharing, permanently free, regardless of subscription tier. For Puerto Rico specifically, the app shows any recent tagged sharks within range and lets you enable push notifications for sightings on your active tiles.