Chios (The Great Wall)

5mm wetsuit typical

Chios (The Great Wall) at a glance

Chios (The Great Wall) is a dive site in Greece. Typically most favorable Jul–Aug · from 3 years of archive data. Recent reports put the water around 22°C (71°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 · 20:00 · run 13 h ago

0.0 m (0.1 ft)waves — under half a meter expected (waves — under a foot expected)

Tap a factor for its source and model point · Forecast 22°C · seasonal avg 22°C ( · Forecast 71°F · seasonal avg 71°F)

Dive windows this week

Sun

0.1 m waves · 4 kn wind (0.2 ft waves · 4 kn wind)

Mon

0.4 m waves · 5 kn wind (1.3 ft waves · 5 kn wind)

Tue

0.3 m waves · 4 kn wind (0.8 ft waves · 4 kn wind)

Wed

0.3 m waves · 5 kn wind (0.8 ft waves · 5 kn wind)

Thu

0.5 m waves · 11 kn wind (1.6 ft waves · 11 kn wind)

Fri

0.3 m waves · 5 kn wind (1.1 ft waves · 5 kn wind)

Sat

0.1 m waves · 4 kn wind (0.4 ft waves · 4 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 6:07 · Sunrise 6:34 · Sunset 17:24 · some windows run past sunset

Source: Open-Meteo marine · model point 3.2 km from site · updated 25 Oct, 07:21 EET

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Chios (The Great Wall)

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.

January, 75% of days have historically been favorable, water has typically been 17°C (63°F), waves have typically been 1.1 m (3.7 ft), wind has typically been 8 knots
February, 84% of days have historically been favorable, water has typically been 16°C (61°F), waves have typically been 1.1 m (3.5 ft), wind has typically been 9 knots
March, 88% of days have historically been favorable, water has typically been 17°C (62°F), waves have typically been 1.0 m (3.3 ft), wind has typically been 8 knots
April, 91% of days have historically been favorable, water has typically been 17°C (63°F), waves have typically been 0.9 m (2.9 ft), wind has typically been 8 knots
May, 96% of days have historically been favorable, water has typically been 19°C (66°F), waves have typically been 0.7 m (2.4 ft), wind has typically been 7 knots
June, 99% of days have historically been favorable, water has typically been 22°C (72°F), waves have typically been 0.8 m (2.5 ft), wind has typically been 8 knots
July, 100% of days have historically been favorable, water has typically been 24°C (75°F), waves have typically been 0.8 m (2.7 ft), wind has typically been 8 knots, historically most favorable
August, 100% of days have historically been favorable, water has typically been 25°C (77°F), waves have typically been 0.9 m (2.9 ft), wind has typically been 8 knots, historically most favorable
September, 99% of days have historically been favorable, water has typically been 24°C (75°F), waves have typically been 0.9 m (2.8 ft), wind has typically been 8 knots
October, 100% of days have historically been favorable, water has typically been 22°C (71°F), waves have typically been 0.8 m (2.5 ft), wind has typically been 7 knots, historically most favorable
November, 86% of days have historically been favorable, water has typically been 20°C (67°F), waves have typically been 1.1 m (3.4 ft), wind has typically been 8 knots
December, 85% of days have historically been favorable, water has typically been 18°C (65°F), waves have typically been 1.0 m (3.4 ft), wind has typically been 8 knots

July, August, and October have 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 July 2026

Site details

No description for this site yet — divers who know it can suggest one below.

boatcavereefwallwreck

No hazards recorded for this site yet — that never means there are none. Ask a local operator before you dive.

Reviews

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