Japan

Devil's Cove

5–20 mMax Depth

shoreEntry

70Species

Conditions Summary

Model forecast · local time (GMT+9)

Planning signal71/100

Waves

2.2 m

6.8 s

Swell

0.9 m

8.4 s

Current speed

0.2 km/h

flowing toward S

Water temperature

28.8°C

Wind

28.1 km/h

→ N

Sea level

0.6 m

rising

WavesChallenging

SwellWatch

Current speedCalm

Forecast Overview

TodayChallenging

Waves1.9–2.3 mCurrent speed0.4 km/h maxWater temperature28.9°C

TomorrowChallenging

Waves1.8–2.2 mCurrent speed0.7 km/h maxWater temperature28.8°C

Tue, Sep 8Challenging

Waves1.4–1.8 mCurrent speed0.9 km/h maxWater temperature28.8°C

Wed, Sep 9Challenging

Waves1.1–1.3 mCurrent speed0.6 km/h maxWater temperature28.8°C

Next 72 hours

10:00

Waves: 2.2 m

Current speed: 0.2 km/h

Water temperature: 28.8°C

16:00

Waves: 2.2 m

Current speed: 0.4 km/h

Water temperature: 29.0°C

22:00

Waves: 1.9 m

Current speed: 0.4 km/h

Water temperature: 28.9°C

04:00

Waves: 1.9 m

Current speed: 0.2 km/h

Water temperature: 28.8°C

10:00

Waves: 2.1 m

Current speed: 0.6 km/h

Water temperature: 28.8°C

16:00

Waves: 1.9 m

Current speed: 0.5 km/h

Water temperature: 28.9°C

22:00

Waves: 1.8 m

Current speed: 0.7 km/h

Water temperature: 28.7°C

04:00

Waves: 1.7 m

Current speed: 0.4 km/h

Water temperature: 28.6°C

10:00

Waves: 1.6 m

Current speed: 0.7 km/h

Water temperature: 28.7°C

16:00

Waves: 1.6 m

Current speed: 0.5 km/h

Water temperature: 29.2°C

22:00

Waves: 1.4 m

Current speed: 0.6 km/h

Water temperature: 28.9°C

04:00

Waves: 1.2 m

Current speed: 0.0 km/h

Water temperature: 28.8°C

Catalog depth5–20 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

Apr-Nov

Peak month

Aug 28.9°

Jan22.3°

Feb21.5°

Mar21.5°

Apr22.5°

May24.5°

Jun26.6°

Jul28.6°

Aug28.9°

Sep28.3°

Oct27.0°

Nov25.3°

Dec23.7°

Current: mild

Typical visibility: 20 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.

Explore nearby centers on the map

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Dive Types

reefsalt Waterbeginner Difficulty

Data source & current conditions

Profile facts were imported from DeepLog. ScubaProof adds nearby-center links and presents the recorded fields without treating missing data as confirmation. Conditions, access, permits, and site suitability can change; confirm them with a local operator before diving.

View the source profile →

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

Sky blue phyllidia

Phyllidia coelestis

DeepLog6

Black sea cucumber

Stichopus chloronotus

DeepLog4

Red tomato clown

Amphiprion frenatus

DeepLog4

Sea cucumber

Holothuria atra

DeepLog4

Turtlehead sea snake

Emydocephalus ijimae

DeepLog4

White threads fish

Holothuria leucospilota

DeepLog3

Leaf scorpionfish

Taenianotus triacanthus

DeepLog2

Nudibranch

Phyllidia ocellata

DeepLog2

Rock-boring urchin

Echinometra mathaei

DeepLog2

Sacoglossan

Plakobranchus ocellatus

DeepLog2

Anna's chromodoris

Chromodoris annae

DeepLog1

Aplysia argus

DeepLog1

These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.

DeepLog + OBIS →

Photos