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Map of Coki Beach Reef
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Shore entry

Coki Beach Reef

U.S. Virgin Islands - St. Thomas, United StatesDirections
1–15 m (3–50 ft) depthShore entryRash guard or 2mm shorty typical

Coki Beach Reef at a glance

Coki Beach Reef is a shore dive site in U.S. Virgin Islands - St. Thomas, United States with depths of 1–15.2 m (3–50 ft). Typically most favorable May · from 3 years of archive data. Divers commonly see Hawksbill turtle, corals and sponges, and tropical reef fish. Recent reports put the water around 30°C (85°F). Check the latest conditions and entry details before you go.

No window today· next: tomorrow 7:00–18:00 · favorable

Forecast for this hour · 16:00 · run 2 h ago
1.4 m (4.7 ft)waves — about a meter and a half expected (waves — about five feet expected)

Tap a factor for its source and model point · Forecast 30°C · seasonal avg 30°C ( · Forecast 85°F · seasonal avg 86°F)

Site hazards: Crowded beach, swimmers/snorkelers, vendors/tour traffic, boat activity, shallow coral/urchins, night-dive navigation, and possible reduced visibility from heavy beach use.

Read the full hazards ↓

Dive windows this week

MonNo window

1.5 m waves · 16 kn wind (4.9 ft waves · 16 kn wind)

Tue7:00–18:00 favorable

1.1 m waves · 10 kn wind (3.6 ft waves · 10 kn wind)

Wed7:00–18:00 favorable

1.0 m waves · 13 kn wind (3.2 ft waves · 13 kn wind)

Thu7:00–18:00 favorable

1.0 m waves · 13 kn wind (3.3 ft waves · 13 kn wind)

Fri7:00–18:00 favorable

0.9 m waves · 11 kn wind (3.1 ft waves · 11 kn wind)

Sat7:00–18:00 favorable

0.8 m waves · 10 kn wind (2.8 ft waves · 10 kn wind)

Sun7:00–18:00 favorable

0.7 m waves · 10 kn wind (2.4 ft waves · 10 kn wind)

Favorable windowModerate window— no window

Every forecast dive window each day, site-local time, from wave and wind forecasts. Numbers under each bar are daylight averages.

First light 5:54 · Sunrise 6:16 · Sunset 17:49 · some windows run past sunset

Source: Open-Meteo marine · model point 6.5 km from site · updated 26 Oct, 13:24 GMT-4

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Coki Beach Reef

Forecast · NOAA tide model

Tide & slack timing

Loading tide predictions

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

What Divers Say

Known for: corals and sponges, tropical reef fish, Juvenile reef fish
Best time: Best early in the day before crowds and cruise excursions build; night dives should be guided/local-operator dives.

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. January, 27% of days have historically been favorable, water has typically been 27°C (81°F), waves have typically been 1.8 m (5.9 ft), wind has typically been 17 knots
  2. February, 20% of days have historically been favorable, water has typically been 27°C (80°F), waves have typically been 1.9 m (6.1 ft), wind has typically been 18 knots
  3. March, 33% of days have historically been favorable, water has typically been 27°C (80°F), waves have typically been 1.8 m (5.9 ft), wind has typically been 15 knots
  4. April, 52% of days have historically been favorable, water has typically been 27°C (81°F), waves have typically been 1.6 m (5.2 ft), wind has typically been 16 knots
  5. May, 80% of days have historically been favorable, water has typically been 28°C (83°F), waves have typically been 1.2 m (4.0 ft), wind has typically been 15 knots, historically most favorable
  6. June, 67% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 1.3 m (4.2 ft), wind has typically been 17 knots
  7. July, 54% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 1.4 m (4.5 ft), wind has typically been 18 knots
  8. August, 56% of days have historically been favorable, water has typically been 29°C (85°F), waves have typically been 1.4 m (4.7 ft), wind has typically been 17 knots
  9. September, 68% of days have historically been favorable, water has typically been 30°C (86°F), waves have typically been 1.4 m (4.5 ft), wind has typically been 14 knots
  10. October, 54% of days have historically been favorable, water has typically been 30°C (86°F), waves have typically been 1.6 m (5.2 ft), wind has typically been 14 knots
  11. November, 34% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 1.7 m (5.6 ft), wind has typically been 16 knots
  12. December, 26% of days have historically been favorable, water has typically been 28°C (82°F), waves have typically been 1.9 m (6.2 ft), wind has typically been 16 knots

May has typically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life recorded at this site, by month

Recorded observations — evidence of past sightings, not a promise of what you’ll encounter.

Species seen here

Rough labels: “Commonly seen” usually means two or more recorded sightings near this site in public dive logs (GBIF), “Occasionally seen” one; “Seasonal” and “Rarely seen” come from dive-guide research. Not a measured rate.

  • Bar Jack recorded here Jul (1 record)

    Caranx rubermost recent 2012

  • Blue Tang recorded here Jul (1 record)

    Acanthurus coeruleusmost recent 2012

  • Leatherjacket recorded here Jul (1 record)

    Oligoplites saurusmost recent 2012

  • Southern Stingray recorded here Jul (1 record)

    Hypanus americanusmost recent 2012

  • Spotted Trunkfish recorded here Jul (1 record)

    Lactophrys bicaudalismost recent 2012

  • Squirrelfish recorded here Jul (1 record)

    Holocentrus adscensionismost recent 2012

  • Stegastes adustus recorded here Jul (1 record)

    most recent 2012

Newest record here: 2012. Counts are occurrence records near this site from public biodiversity datasets (GBIF), grouped by calendar month across all sampled years. Sightings vary — past records are context, not a prediction.

Fills & rentals nearby

Facts from OpenStreetMap, corrected by the community — listed by distance only. Details change; confirm with the shop.

Shop facts come from OpenStreetMap and community corrections, shown nearest first. PickADive lists facts and contacts only — no listing is sponsored or ranked.

Data updated July 2026

Site details

Coki Beach Reef is a beach-entry St. Thomas reef beside Coral World Ocean Park, with very calm, clear conditions often suitable for first dives, snorkeling, and night dives. St Thomas Scuba Diving describes two reefs in roughly 40-50 ft / 12-15 m for divers, while the beach itself is a well-known shore snorkel. Keep the business/attraction separate from the actual beach reef site.

reefshore

Crowded beach, swimmers/snorkelers, vendors/tour traffic, boat activity, shallow coral/urchins, night-dive navigation, and possible reduced visibility from heavy beach use.

Reviews

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