Japan

Jam

5–25 mMax Depth

7Species

Conditions Summary

Model forecast · local time (GMT+9)

Model conditions signal91/100

Waves

0.6 m

4.5 s

Swell

0.4 m

4.3 s

Current speed

0.5 km/h

flowing toward W

Water temperature

27.9°C

Wind

16.6 km/h

→ E

Sea level

1.0 m

falling

WavesWatch

SwellCalm

Current speedCalm

Planning window

02:00–03:00

Calmest model window

Forecast Overview

Mon, Oct 19Calm

Waves0.4–0.6 mCurrent speed0.9 km/h maxWater temperature27.9°C

Tue, Oct 20Watch

Waves0.5–0.6 mCurrent speed0.8 km/h maxWater temperature27.9°C

TodayWatch

Waves0.6–1.5 mCurrent speed1.3 km/h maxWater temperature27.9°C

TomorrowChallenging

Waves1.5–1.6 mCurrent speed1.2 km/h maxWater temperature27.7°C

Next 72 hours

02:00

Waves: 0.6 m

Current speed: 0.5 km/h

Water temperature: 27.9°C

08:00

Waves: 0.5 m

Current speed: 0.8 km/h

Water temperature: 27.8°C

14:00

Waves: 0.4 m

Current speed: 0.9 km/h

Water temperature: 28.1°C

20:00

Waves: 0.5 m

Current speed: 0.4 km/h

Water temperature: 27.9°C

02:00

Waves: 0.5 m

Current speed: 0.2 km/h

Water temperature: 27.8°C

08:00

Waves: 0.5 m

Current speed: 0.5 km/h

Water temperature: 27.8°C

14:00

Waves: 0.5 m

Current speed: 0.7 km/h

Water temperature: 28.2°C

20:00

Waves: 0.6 m

Current speed: 0.4 km/h

Water temperature: 28.0°C

02:00

Waves: 0.6 m

Current speed: 0.2 km/h

Water temperature: 27.9°C

08:00

Waves: 0.7 m

Current speed: 0.6 km/h

Water temperature: 27.9°C

14:00

Waves: 0.9 m

Current speed: 1.0 km/h

Water temperature: 28.0°C

20:00

Waves: 1.3 m

Current speed: 1.2 km/h

Water temperature: 27.9°C

Catalog depth5–25 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

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

Turtlehead sea snake

Emydocephalus ijimae

DeepLog7

Euprymna brenneri

DeepLog2

Stony coral

Lobophyllia corymbosa

DeepLog2

Strawberry conch

Conomurex luhuanus

DeepLog2

Blackpatch triggerfish

Rhinecanthus verrucosus

DeepLog1

Hebrew cone

Conus ebraeus

DeepLog1

Pacific deer cowrie

Lyncina vitellus

DeepLog1

アオウミガメ

Chelonia mydas

Nearby OBIS observations15

Tringa brevipes

Nearby OBIS observations6

Actitis hypoleucos

Nearby OBIS observations5

Gastropoda

Nearby OBIS observations5

Tridacna crocea

Nearby OBIS observations5

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

DeepLog + OBIS →

Photos