Skip to content
Map of Three Sisters (Daymaniyat Islands)
Add the first photo
Boat entry

Three Sisters (Daymaniyat Islands)

Muscat, Oman
Open Water suggested5–22 m (16–72 ft) depthBoat entryRash guard or 2mm shorty typical

Boat dive — see Entry & access.

Three Sisters (Daymaniyat Islands) at a glance

Three Sisters (Daymaniyat Islands) is a boat dive site in Muscat, Oman with depths of 5–22 m (16–72 ft). Typically most favorable Oct · from 3 years of archive data. Divers commonly see Hawksbill turtle, Whale shark, and Bluespotted ribbontail ray. Recent reports put the water around 31°C (88°F). Check the latest conditions and entry details before you go.

Next window today· 7:00–18:00 · favorable · sunset 17:32

Forecast for this hour · 0:00 · run 14 h ago
0.2 m (0.8 ft)waves — under half a meter expected (waves — under a foot expected)

Tap a factor for its source and model point · Forecast 31°C · seasonal avg 31°C ( · Forecast 88°F · seasonal avg 88°F)

Site hazards: Offshore boat dive; occasional surface chop; reserve rules prohibit touching coral or landing on islands in nesting season; remote from medical facilities.

Read the full hazards ↓

Dive windows this week

Tue7:00–18:00 favorable

0.2 m waves · 4 kn wind (0.5 ft waves · 4 kn wind)

Wed7:00–18:00 favorable

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

Thu7:00–18:00 favorable

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

Fri7:00–18:00 favorable

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

Sat7:00–18:00 favorable

0.1 m waves · 6 kn wind (0.2 ft waves · 6 kn wind)

Sun7:00–18:00 favorable

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

MonNot in the forecast yet

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 5:47 · Sunrise 6:10 · Sunset 17:32 · some windows run past sunset

Source: Open-Meteo marine · model point 4.9 km from site · updated 26 Oct, 09:20 GST

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Three Sisters (Daymaniyat Islands)

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: Bluespotted ribbontail ray, Yellowbar angelfish, Bigeye trevally
Best time: September to May; summer water 29-31 C, winter 20-22 C with greener but cooler water.

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, 90% of days have historically been favorable, water has typically been 25°C (76°F), waves have typically been 0.8 m (2.6 ft), wind has typically been 13 knots
  2. February, 86% of days have historically been favorable, water has typically been 24°C (75°F), waves have typically been 0.8 m (2.5 ft), wind has typically been 14 knots
  3. March, 89% of days have historically been favorable, water has typically been 25°C (77°F), waves have typically been 0.6 m (2.1 ft), wind has typically been 13 knots
  4. April, 98% of days have historically been favorable, water has typically been 27°C (81°F), waves have typically been 0.4 m (1.4 ft), wind has typically been 12 knots
  5. May, 98% of days have historically been favorable, water has typically been 31°C (87°F), waves have typically been 0.4 m (1.2 ft), wind has typically been 11 knots
  6. June, 99% of days have historically been favorable, water has typically been 33°C (92°F), waves have typically been 0.6 m (1.8 ft), wind has typically been 12 knots
  7. July, 99% of days have historically been favorable, water has typically been 33°C (91°F), waves have typically been 0.6 m (2.1 ft), wind has typically been 13 knots
  8. August, 98% of days have historically been favorable, water has typically been 32°C (89°F), waves have typically been 0.6 m (2.0 ft), wind has typically been 12 knots
  9. September, 99% of days have historically been favorable, water has typically been 32°C (89°F), waves have typically been 0.6 m (1.8 ft), wind has typically been 11 knots
  10. October, 100% of days have historically been favorable, water has typically been 31°C (88°F), waves have typically been 0.5 m (1.7 ft), wind has typically been 11 knots, historically most favorable
  11. November, 99% of days have historically been favorable, water has typically been 29°C (84°F), waves have typically been 0.4 m (1.4 ft), wind has typically been 10 knots
  12. December, 92% of days have historically been favorable, water has typically been 26°C (79°F), waves have typically been 0.6 m (2.1 ft), wind has typically been 11 knots

October 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 seen at this site

Species noted at this site — 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.

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

A signature Daymaniyat dive on three rocky outcrops within the nature reserve, about 18 km offshore from the Muscat coast. Sloping reef and boulder terrain runs from the shallows to roughly 20-22 m, decorated with hard and soft coral and frequently patrolled by turtles, rays and large schools of fish. Conditions are usually easy with low to moderate current, making it a favourite for both training and fun dives. Marine life density is high and whale sharks pass through in the warmer months.

boatreefshore

Offshore boat dive; occasional surface chop; reserve rules prohibit touching coral or landing on islands in nesting season; remote from medical facilities.

Reviews

No reviews yet — this site is waiting for its first. Dived here? Your rating and a few lines help the next diver.

Spot something off?

Help keep this listing accurate for the next diver.