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Map of Greenville Reef
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IntermediateBoat entry

Greenville Reef

South Carolina, United States
26 m (85 ft) depthBoat entry3mm wetsuit typical

Boat dive — see Entry & access.

Greenville Reef at a glance

Greenville Reef is an intermediate boat dive site in South Carolina, United States with depths of up to 25.9 m (85 ft). Typically most favorable Jul · from 3 years of archive data. Recent reports put the water around 23°C (74°F). Check the latest conditions and entry details before you go.

No window today· next: tomorrow 17:00–18:00 · moderate

Forecast for this hour · 17:00 · run 16 h ago
3.7 m (12.3 ft)waves — about three and a half meters expected (waves — about 12 feet expected)

Tap a factor for its source and model point · Forecast 23°C · seasonal avg 23°C ( · Forecast 74°F · seasonal avg 74°F)

Site hazards: Open-ocean offshore site with no marker buoy; depth around 26 m approaches recreational advanced-dive range. Conditions depend on offshore weather and seas.

Read the full hazards ↓

Dive windows this week

Smallest waves: Fri
SunNo window

3.4 m waves · 29 kn wind (11.1 ft waves · 29 kn wind)

Mon17:00–18:00 moderate

2.6 m waves · 22 kn wind (8.6 ft waves · 22 kn wind)

Tue7:00–18:00 favorable

2.0 m waves · 17 kn wind (6.4 ft waves · 17 kn wind)

Wed7:00–8:00 moderate

2.1 m waves · 26 kn wind (6.7 ft waves · 26 kn wind)

Thu7:00–18:00 moderate

1.9 m waves · 22 kn wind (6.2 ft waves · 22 kn wind)

Fri7:00–10:00 favorable, 10:00–11:00 moderate, 11:00–18:00 favorable

1.7 m waves · 19 kn wind (5.5 ft waves · 19 kn wind)

Sat7:00–10:00 favorable, 10:00–11:00 moderate, 11:00–13:00 favorable, 13:00–14:00 moderate, 14:00–18:00 favorable

1.9 m waves · 18 kn wind (6.1 ft waves · 18 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 6:02 · Sunrise 6:27 · Sunset 17:31 · some windows run past sunset

Source: Open-Meteo marine · model point 8.8 km from site · updated 25 Oct, 00:23 GMT-5

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Greenville Reef

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?

Best months, historically

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

  1. January, 48% of days have historically been favorable, water has typically been 14°C (56°F), waves have typically been 1.3 m (4.3 ft), wind has typically been 20 knots
  2. February, 46% of days have historically been favorable, water has typically been 14°C (57°F), waves have typically been 1.4 m (4.7 ft), wind has typically been 19 knots
  3. March, 43% of days have historically been favorable, water has typically been 16°C (61°F), waves have typically been 1.4 m (4.7 ft), wind has typically been 20 knots
  4. April, 61% of days have historically been favorable, water has typically been 20°C (67°F), waves have typically been 1.3 m (4.3 ft), wind has typically been 18 knots
  5. May, 60% of days have historically been favorable, water has typically been 23°C (74°F), waves have typically been 1.2 m (4.1 ft), wind has typically been 18 knots
  6. June, 68% of days have historically been favorable, water has typically been 26°C (78°F), waves have typically been 1.1 m (3.7 ft), wind has typically been 17 knots
  7. July, 86% of days have historically been favorable, water has typically been 28°C (83°F), waves have typically been 1.0 m (3.3 ft), wind has typically been 15 knots, historically most favorable
  8. August, 68% of days have historically been favorable, water has typically been 28°C (83°F), waves have typically been 1.3 m (4.2 ft), wind has typically been 16 knots
  9. September, 51% of days have historically been favorable, water has typically been 27°C (80°F), waves have typically been 1.4 m (4.7 ft), wind has typically been 18 knots
  10. October, 46% of days have historically been favorable, water has typically been 23°C (74°F), waves have typically been 1.5 m (4.9 ft), wind has typically been 19 knots
  11. November, 54% of days have historically been favorable, water has typically been 20°C (68°F), waves have typically been 1.3 m (4.3 ft), wind has typically been 18 knots
  12. December, 42% of days have historically been favorable, water has typically been 16°C (60°F), waves have typically been 1.5 m (5.0 ft), wind has typically been 20 knots

July 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

No recorded sightings data for this site yet. Species lists appear as GBIF records and diver reports accumulate.

Fills & rentals nearby

No dive shops mapped within 25 km (16 mi). Know one? Add it to the map.

Data updated June 2026

Site details

Artificial reef built from Approximate Center of Reef

reefwreck

Open-ocean offshore site with no marker buoy; depth around 26 m approaches recreational advanced-dive range. Conditions depend on offshore weather and seas.

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