Conditions
Hazards & safety
Extreme depth and the Arch's lethal narcosis trap
Many recorded diver fatalities
Easy to exceed safe depth limits
Cold thermoclines at depth
Conditions & forecast
Diving: Good
Wind
9 km/h SW
Air
31.7°C
Water
27.4°C
Waves
0.2 m
Tide
↓ Falling
High 10:00 · Low 04:00
Next 24 hours
23h
31.5°
7 km/h
00h
31.2°
4 km/h
01h
30.5°
4 km/h
02h
30.3°
3 km/h
03h
30.1°
2 km/h
04h
29.7°
2 km/h
05h
29°
4 km/h
06h
28.5°
6 km/h
07h
30.3°
6 km/h
08h
32.2°
6 km/h
09h
33.2°
9 km/h
10h
34.2°
13 km/h
11h
35.2°
15 km/h
12h
36°
14 km/h
13h
36.5°
12 km/h
14h
36.8°
13 km/h
15h
35.7°
16 km/h
16h
35.9°
17 km/h
17h
36°
16 km/h
18h
36°
14 km/h
19h
35.4°
10 km/h
20h
34°
8 km/h
21h
32.4°
9 km/h
22h
32.4°
8 km/h
Fri
37.6° / 29.7°
23 km/h · 0.5 m
Sat
36.8° / 28.5°
17 km/h · 0.2 m
Sun
38.9° / 28.9°
17 km/h · 0.1 m
Mon
40.3° / 30.3°
24 km/h · 0.5 m
Tue
41.1° / 31.5°
25 km/h · 0.6 m
Wed
41.1° / 31.3°
25 km/h · 0.7 m
Thu
40.9° / 32.1°
28 km/h · 0.6 m
About this site
The Blue Hole is a roughly circular submarine sinkhole about 120 m deep, ringed by reef and famous for the Arch, a 26 m tunnel whose ceiling sits at 55 m and opens to the open sea. Most recreational divers explore the rim wall and the shallow saddle, while the deep Arch transit is strictly the domain of trained technical divers. It is one of the most beautiful and most infamous dive sites on Earth, marked by a sobering memorial wall to lost divers.
What you'll see
Marine life
HighModerateLow
Red Sea (Scalefin) AnthiasPseudanthias squamipinnisHighSohal SurgeonfishAcanthurus sohalHighBluefin TrevallyCaranx melampygusModerateNapoleon (Humphead) WrasseCheilinus undulatusModerateDogtooth TunaGymnosarda unicolorLowGreat BarracudaSphyraena barracudaLowHawksbill Sea TurtleEretmochelys imbricataLow
Red Sea (Scalefin) Anthias
Pseudanthias squamipinnis Year-round0.07–0.15m
Sohal Surgeonfish
Acanthurus sohal Year-round0.3–0.4m
Bluefin Trevally
Caranx melampygus Year-round0.4–1.0m
Napoleon (Humphead) Wrasse
Cheilinus undulatus Year-round1.2–2.0m
Dogtooth Tuna
Gymnosarda unicolor Year-round0.8–2.0m
Great Barracuda
Sphyraena barracuda Year-round1.0–1.8m
Hawksbill Sea Turtle
Eretmochelys imbricata Year-round0.6–1.0m
Probabilities are aggregated from verified sightings by Dive Plaza divers. They are guides, not promises — the sea is the sea.