Sunabe – Chatan scuba diving weather

Shore dive · Okinawa Island, Okinawa Prefecture · Show on map

Now · 00:00Excellent

91out of 100

Excellent conditions. Best 07:00–14:00. From 14:00 the current picks up and it turns good.

Waves: 0.4 m
Wind: 11 kn from SW; gusts 22
Water: 26 °C; same down to ~11 m
Suit: 3 mm; to ~11 m

Tide Low ~04:10 · High ~10:54 · approximate

Hour by hour today

Tap an hour to see it above

Score	Waves	Wind (gusts)	Current	Swell	Tide	Water	Air	Rain	Limited by
91	0.4 m	11 (22 kn) ↓	0.3 kn	0.2 m · 5 s ↓	–	25.9 °C	23 °C	1.8 mm	gusts
95	0.5 m	10 (21 kn) ↓	0.3 kn	0.2 m · 5 s ↓	–	25.9 °C	23 °C	1.7 mm	wind
91	0.6 m	12 (21 kn) ↓	0.3 kn	0.2 m · 5 s ↓	–	25.9 °C	23 °C	2.7 mm	wind
68	0.6 m	14 (26 kn) ↓	0.3 kn	0.2 m · 5 s ↓	–	25.9 °C	23 °C	4.1 mm	gusts
76	0.6 m	9 (26 kn) ↓	0.3 kn	0.2 m · 5 s ↓	Low ~04:10	25.9 °C	23 °C	5.2 mm	gusts
85	0.7 m	9 (16 kn) ↓	0.2 kn	0.2 m · 5 s ↓	↑ rising	25.9 °C	23 °C	8.2 mm	rain
74	1.0 m	11 (20 kn) ↓	0.2 kn	0.8 m · 4 s ↓	↑ rising	25.9 °C	23 °C	0.5 mm	waves
78	1.0 m	9 (19 kn) ↓	0.3 kn	0.8 m · 4 s ↓	↑ rising	25.9 °C	23 °C	1.0 mm	waves
81	1.0 m	8 (17 kn) ↓	0.3 kn	0.8 m · 4 s ↓	↑ rising	25.9 °C	23 °C	1.3 mm	waves
83	1.0 m	7 (14 kn) ↓	0.3 kn	0.8 m · 4 s ↓	↑ rising	25.9 °C	24 °C	0.4 mm	waves
83	1.0 m	8 (13 kn) ↓	0.3 kn	0.8 m · 4 s ↓	High ~10:54	25.9 °C	24 °C	–	waves
83	0.9 m	9 (19 kn) ↓	0.3 kn	0.8 m · 4 s ↓	↓ falling	25.9 °C	25 °C	–	waves
83	0.9 m	9 (20 kn) ↓	0.3 kn	0.8 m · 4 s ↓	↓ falling	26.0 °C	26 °C	0.1 mm	waves
84	0.9 m	9 (19 kn) ↓	0.5 kn	0.8 m · 5 s ↓	↓ falling	26.0 °C	26 °C	0.2 mm	waves
68	0.9 m	8 (19 kn) ↓	0.8 kn	0.8 m · 5 s ↓	↓ falling	26.0 °C	25 °C	–	current
63	0.9 m	9 (18 kn) ↓	0.9 kn	0.8 m · 5 s ↓	↓ falling	26.0 °C	26 °C	–	current
56	1.0 m	9 (19 kn) ↓	1.0 kn	0.7 m · 5 s ↓	Low ~16:20	26.0 °C	25 °C	–	current
62	0.9 m	10 (19 kn) ↓	1.0 kn	0.7 m · 5 s ↓	↑ rising	26.0 °C	24 °C	–	current
68	0.9 m	9 (19 kn) ↓	0.9 kn	0.7 m · 5 s ↓	↑ rising	25.9 °C	24 °C	–	current
76	0.9 m	9 (16 kn) ↓	0.7 kn	0.7 m · 5 s ↓	↑ rising	25.9 °C	23 °C	–	waves
82	0.9 m	8 (15 kn) ↓	0.5 kn	0.7 m · 5 s ↓	↑ rising	25.9 °C	23 °C	–	waves
83	1.0 m	7 (14 kn) ↓	0.4 kn	0.7 m · 5 s ↓	High ~21:48	25.9 °C	23 °C	–	waves

Waves and swell are adjusted for this site's shelter from the coastline. Arrows point where the wind and swell go. Night hours are shaded. Tide times come from an ocean model: usually within about half an hour, more in complex waters. Check official tide tables.

Water at depth

25 °C down to about 11 m. The model's water ends there; nothing is known below.

Suit: 3 mm wetsuit down to ~11 m.

Model estimate (Copernicus Marine), updated Sat 14 Nov. High confidence.

Temperature profile and next days

Day	Surface	Warm to
Sun 15 Nov	25.3 °C	~11 m
Mon 16 Nov	25.4 °C	~11 m
Tue 17 Nov	25.4 °C	~11 m
Wed 18 Nov	25.4 °C	~11 m
Thu 19 Nov	25.1 °C	~11 m
Fri 20 Nov	24.9 °C	~11 m
Sat 21 Nov	24.5 °C	~11 m
Sun 22 Nov	24.2 °C	~11 m
Mon 23 Nov	24.1 °C	~11 m

~9 km model grid; nearest model water 2.1 km away. Daily averages; the thermocline can move several metres day to day.

Conditions at Sunabe – Chatan

Sunabe – Chatan is open to the sea from the WSW–NNW, so waves build there when the wind blows from those directions. Land shelters it from the N–SSE.

Over the next 7 days it's good or better every day. Thu, Fri and Sat are only a trend so far.

When it's rough here, try Blue Cave (14 km, sheltered from the WSW–WNW).

The water is 26 °C at the surface and stays warm past 11 m, so a 3 mm wetsuit suits most dives.

Shelter

Open to WSW–NNW. Waves and swell from there reach the site.

Sheltered from N–SSE: land blocks the waves.

Computed from the OpenStreetMap coastline. Wind itself is not reduced by shelter.

Location

Open Sunabe – Chatan on the map26.3214, 127.7481

Nearby dive sites

Scores are today's best daylight hour.

About this forecast

Updated Sun 15 Nov, 00:30 · weather run 06Z 14 Nov · waves run 00Z 14 Nov

Waves are adjusted for this site's shelter from the coastline.

Tides come from a coarse ocean model. The range, and whether tides are bigger or smaller this week, are about right. Times are usually within about half an hour, but complex tides (the Solent, Portland, narrow straits) are poor. Slack water isn't in the score yet: plan with official tide tables and local advice.

Water temperature in Okinawa Prefecture

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