Twin Dropoff

Guam

Twin Dropoff

10–40 mMax Depth
boatEntry
63Species

Conditions Summary

Model forecast · local time (GMT+10)

Model conditions signal62/100
Waves
3.0 m
8.1 s
Swell
2.0 m
7.2 s
Current speed
1.3 km/h
flowing toward E
Water temperature
28.3°C
Wind
33.9 km/h
→ SE
Sea level
0.8 m
falling
WavesChallenging
SwellChallenging
Current speedCalm

Forecast Overview

Mon, Oct 19Challenging
Waves2.4–3.0 mCurrent speed1.3 km/h maxWater temperature28.2°C
TodayChallenging
Waves1.6–2.4 mCurrent speed2.8 km/h maxWater temperature28.4°C
TomorrowChallenging
Waves1.5–1.6 mCurrent speed1.6 km/h maxWater temperature28.5°C
Thu, Oct 22Challenging
Waves1.5–1.5 mCurrent speed1.5 km/h maxWater temperature28.4°C
Next 72 hours
15:00
Waves: 3.0 m
Current speed: 1.3 km/h
Water temperature: 28.3°C
21:00
Waves: 2.5 m
Current speed: 0.9 km/h
Water temperature: 28.2°C
03:00
Waves: 2.2 m
Current speed: 1.4 km/h
Water temperature: 28.2°C
09:00
Waves: 1.9 m
Current speed: 2.2 km/h
Water temperature: 28.2°C
15:00
Waves: 1.8 m
Current speed: 2.5 km/h
Water temperature: 28.6°C
21:00
Waves: 1.7 m
Current speed: 1.6 km/h
Water temperature: 28.4°C
03:00
Waves: 1.6 m
Current speed: 1.3 km/h
Water temperature: 28.3°C
09:00
Waves: 1.6 m
Current speed: 0.4 km/h
Water temperature: 28.3°C
15:00
Waves: 1.5 m
Current speed: 0.6 km/h
Water temperature: 28.7°C
21:00
Waves: 1.5 m
Current speed: 0.8 km/h
Water temperature: 28.5°C
03:00
Waves: 1.5 m
Current speed: 0.9 km/h
Water temperature: 28.3°C
09:00
Waves: 1.5 m
Current speed: 1.4 km/h
Water temperature: 28.4°C
Catalog depth10–40 m
Data sources & field guideOpen-Meteo Marine + Weather APIs

Planning context, not a safety guarantee. Coastal model accuracy is limited. Confirm the actual briefing, entry, exit, and suitability with a local operator.

Open-Meteo Marine + Weather APIs →

Dive readiness

Collecting the latest marine conditions and forecast signals.

Seasons · water temperature

12-month outlook

Best window

Dec-May

Peak month

Jul 29.4°

Jan27.9°
Feb27.6°
Mar27.7°
Apr28.1°
May28.8°
Jun29.3°
Jul29.4°
Aug29.4°
Sep29.4°
Oct29.3°
Nov29.0°
Dec28.4°
Current: mild
Typical visibility: 30 m

Historical planning data from the recorded site profile. Water temperature and conditions can vary by day, depth, and weather; confirm current conditions with a local operator.

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Dive Types

wallsalt Waterintermediate Difficulty

Questions to ask a local operator

  • What are today's current, visibility, entry, and exit conditions?
  • Does the planned route stay within my certification and recent experience?
  • Are there local permits, conservation rules, or equipment requirements?

Common Species

12 km · nearby observations
Rock flagtail
Kuhlia rupestris
DeepLog5
Spotted shrimp goby
Amblyeleotris guttata
DeepLog5
Steinitz' prawn-goby
Amblyeleotris steinitzi
DeepLog5
Tracey's demoiselle
Chrysiptera traceyi
DeepLog4
Ocellate damselfish
Pomacentrus vaiuli
DeepLog3
Decorated goby
Istigobius decoratus
DeepLog2
Redlined wrasse
Halichoeres biocellatus
DeepLog2
Shepard's pygmy anglefish
Centropyge shepardi
DeepLog2
Spinecheek goby
Oplopomus oplopomus
DeepLog2
African coris
Coris gaimard
DeepLog1
Blackside hawkfish
Paracirrhites forsteri
DeepLog1
Blackspotted puffer
Arothron nigropunctatus
DeepLog1
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS →

Photos

Twin Dropoff photo 2
Twin Dropoff photo 3
Twin Dropoff photo 4
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