Galawa Reef & Nassiwa Wreck

Grande Comore, ComorosDirections

Rash guard or 2mm shorty typical

Galawa Reef & Nassiwa Wreck at a glance

Galawa Reef & Nassiwa Wreck is a dive site in Grande Comore, Comoros. Typically most favorable Feb–Apr · from 3 years of archive data. Recent reports put the water around 27°C (81°F). Check the latest conditions and entry details before you go.

Favorable window now· until 19:00 · sunset 18:04

Forecast for this hour · 7:00 · run 22 h ago

0.6 m (1.8 ft)waves — under a meter expected (waves — about two feet expected)

Tap a factor for its source and model point · Forecast 27°C · seasonal avg 27°C ( · Forecast 81°F · seasonal avg 81°F)

Dive windows this week

Lightest wind: Sun

Sun

0.6 m waves · 2 kn wind (1.9 ft waves · 2 kn wind)

Mon

1.1 m waves · 8 kn wind (3.7 ft waves · 8 kn wind)

Tue

1.0 m waves · 11 kn wind (3.3 ft waves · 11 kn wind)

Wed

0.8 m waves · 9 kn wind (2.8 ft waves · 9 kn wind)

Thu

0.7 m waves · 7 kn wind (2.2 ft waves · 7 kn wind)

Fri

0.4 m waves · 4 kn wind (1.4 ft waves · 4 kn wind)

Sat

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 5:15 · Sunrise 5:37 · Sunset 18:04 · some windows run past sunset

Source: Open-Meteo marine · model point 12 km from site · updated 24 Oct, 08:17 GMT+3

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Galawa Reef & Nassiwa Wreck

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, 99% of days have historically been favorable, water has typically been 29°C (85°F), waves have typically been 0.8 m (2.7 ft), wind has typically been 8 knots
February, 100% of days have historically been favorable, water has typically been 30°C (86°F), waves have typically been 0.6 m (2.1 ft), wind has typically been 7 knots, historically most favorable
March, 100% of days have historically been favorable, water has typically been 30°C (86°F), waves have typically been 0.6 m (2.0 ft), wind has typically been 7 knots, historically most favorable
April, 100% of days have historically been favorable, water has typically been 30°C (86°F), waves have typically been 0.7 m (2.4 ft), wind has typically been 8 knots, historically most favorable
May, 95% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 0.9 m (3.1 ft), wind has typically been 9 knots
June, 99% of days have historically been favorable, water has typically been 28°C (82°F), waves have typically been 1.0 m (3.1 ft), wind has typically been 9 knots
July, 99% of days have historically been favorable, water has typically been 27°C (80°F), waves have typically been 1.0 m (3.2 ft), wind has typically been 10 knots
August, 99% of days have historically been favorable, water has typically been 26°C (80°F), waves have typically been 1.0 m (3.2 ft), wind has typically been 9 knots
September, 100% of days have historically been favorable, water has typically been 27°C (80°F), waves have typically been 1.0 m (3.4 ft), wind has typically been 8 knots, historically most favorable
October, 98% of days have historically been favorable, water has typically been 27°C (81°F), waves have typically been 1.0 m (3.2 ft), wind has typically been 7 knots
November, 100% of days have historically been favorable, water has typically been 29°C (83°F), waves have typically been 0.8 m (2.5 ft), wind has typically been 7 knots, historically most favorable
December, 100% of days have historically been favorable, water has typically been 30°C (85°F), waves have typically been 0.7 m (2.3 ft), wind has typically been 6 knots, historically most favorable

February, March, April, September, November, and December 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.

boatreefwreck

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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