Can you snorkel in Okinawa - Blue Cave today?

Yes. The next good snorkeling window in Okinawa - Blue Cave starts Thu 00:00 and lasts until 10:00. Around 35% of the next 72 hours are suitable.

What is the best time of day to snorkel in Okinawa - Blue Cave?

Snorkel during daylight, ideally in the morning before the wind picks up, and around high slack tide when water is clearest and currents are weakest. SnorkelForecast scores every daylight hour in Okinawa - Blue Cave so you can pick the calmest window.

What is the best tide for snorkeling?

High slack tide — within about an hour of the high-tide peak when currents are weakest — is the safest, clearest window. Strong low tides, strong tidal flow near channels or headlands, and large tidal-range days reduce score.

Okinawa - Blue Cave Snorkel Report Today

Japan · Updated Tue 03:13 (JST) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Wed 19:51

Okinawa - Blue Cave has a usable snorkeling window around Thu 09:00. The main thing to watch is tide/current.

Score: 8.1/10

Best time: Thu 09:00

Main risk: Tide/Current

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

05:48

Sunset

19:21

Water

30.1°C

Max air

26.7°C

Sky

Clear

24% cloud

Good window is available today

Next safe window: Thu 00:00–10:00 (35% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

❌ poor conditions

Main blocker: Darkness

Thursday

✅ excellent conditions

Main blocker: Tide/current

Friday

✅ good conditions

Main blocker: Tide/current

Best available hours

Next safe window starts at Thu 00:00 until 10:00.

Why this verdict

Main blockers across the next 72 hours:

Tide/current (28 hours)
Darkness (26 hours)

Jellyfish drift risk

Drift estimate from wind, swell, current and warm water.

Low · 31/100

Low peak drift risk around Thu 09:00.

warm water supports seasonal jellyfish activity; surface drift/current is noticeable; local shoreline exposure is not mapped yet.

Sightings override the model: if you see small purple jellyfish with long trailing tentacles, treat them as sting-capable and give them space.

Upcoming high tides

Next early morning high tide: Wed 16:00

Wed 16:00, Thu 06:00, Thu 17:00

Nearby alternatives in Japan

Kerama Islands

56 km away

✅ Good

Miyako

314 km away

✅ Good

Ishigaki

438 km away

✅ Good

Advanced forecast data

Viewing historical data

Sun 10:00 – Wed 10:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.57 around Sun 19:00; 8 of 24 hours are good, fair, or excellent.

Score trend, higher is better. Excellent ≥ 0.72, good 0.55–0.72, fair 0.35–0.55.

Conditions (24h trends)

Tap a chart to load just that series.

0/24 sampled hours stay at or below 0.36m (range 0.42m to 0.46m).

Wind is at or below 5.4m/s in 1/24 sampled hours (range 4.9 to 15.7m/s).

Tides range from 0.32m to 1.55m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview

Sun 10:00 good 🌟 Good

Sun 11:00 poor ❌ Limited

Sun 12:00 poor ❌ Limited

Sun 13:00 poor ❌ Limited

Sun 14:00 poor ❌ Limited

Sun 15:00 poor ❌ Limited

Sun 16:00 poor ❌ Limited

Sun 17:00 poor ❌ Limited

Sun 18:00 poor ❌ Limited

Sun 19:00 poor ❌ Limited

Sun 20:00 poor ❌ Limited

Sun 21:00 poor ❌ Limited

Sun 22:00 poor ❌ Limited

Sun 23:00 poor ❌ Limited

Mon 00:00 fair ⚠️ Fair

Mon 01:00 fair ⚠️ Fair

Mon 02:00 poor ❌ Limited

Mon 03:00 poor ❌ Limited

Mon 04:00 poor ❌ Limited

Mon 05:00 fair ⚠️ Fair

Mon 06:00 fair ⚠️ Fair

Mon 07:00 fair ⚠️ Fair

Mon 08:00 fair ⚠️ Fair

Mon 09:00 fair ⚠️ Fair

Mon 10:00 fair ⚠️ Fair

Mon 11:00 poor ❌ Limited

Mon 12:00 poor ❌ Limited

Mon 13:00 poor ❌ Limited

Mon 14:00 poor ❌ Limited

Mon 15:00 poor ❌ Limited

Mon 16:00 poor ❌ Limited

Mon 17:00 poor ❌ Limited

Mon 18:00 poor ❌ Limited

Mon 19:00 poor ❌ Limited

Mon 20:00 poor ❌ Limited

Mon 21:00 poor ❌ Limited

Mon 22:00 poor ❌ Limited

Mon 23:00 poor ❌ Limited

Tue 00:00 good 🌟 Good

Tue 01:00 good 🌟 Good

Tue 02:00 fair ⚠️ Fair

Tue 03:00 fair ⚠️ Fair

Tue 04:00 fair ⚠️ Fair

Tue 05:00 fair ⚠️ Fair

Tue 06:00 fair ⚠️ Fair

Tue 07:00 fair ⚠️ Fair

Tue 08:00 fair ⚠️ Fair

Tue 09:00 good 🌟 Good

Tue 10:00 good 🌟 Good

Tue 11:00 poor ❌ Limited

Tue 12:00 poor ❌ Limited

Tue 13:00 poor ❌ Limited

Tue 14:00 poor ❌ Limited

Tue 15:00 poor ❌ Limited

Tue 16:00 poor ❌ Limited

Tue 17:00 poor ❌ Limited

Tue 18:00 poor ❌ Limited

Tue 19:00 poor ❌ Limited

Tue 20:00 poor ❌ Limited

Tue 21:00 poor ❌ Limited

Tue 22:00 poor ❌ Limited

Tue 23:00 poor ❌ Limited

Wed 00:00 poor ❌ Limited

Wed 01:00 poor ❌ Limited

Wed 02:00 poor ❌ Limited

Wed 03:00 poor ❌ Limited

Wed 04:00 fair ⚠️ Fair

Wed 05:00 poor ❌ Limited

Wed 06:00 poor ❌ Limited

Wed 07:00 poor ❌ Limited

Wed 08:00 poor ❌ Limited

Wed 09:00 poor ❌ Limited

Scoring methodology (for technical users)

We score each hour from 0 to 1 using daylight and these weighted components:

Wave height (35%): best below 0.36m, then decreases as it rises.
Wind speed (25%): best below 5.4m/s, lower is better.
Sea surface temperature (15%): best within 20.6°C to 30.4°C.
Tide and currents (15%): best around slack/high-tide windows.
Daylight (10%): visibility and safety gate (outside daylight scores lower).

Detailed hourly data table

Time	Wave (m)	Wind (m/s)	Sea temp (°C)	Status
Sun 10:00	0.46 · high	6.90 · high	28.50 · good	good
Sun 11:00	0.46 · high	4.90 · good	28.40 · good	poor
Sun 12:00	0.46 · high	6.30 · high	28.40 · good	poor
Sun 13:00	0.46 · high	7.90 · high	28.30 · good	poor
Sun 14:00	0.44 · high	7.80 · high	28.30 · good	poor
Sun 15:00	0.44 · high	6.80 · high	28.30 · good	poor
Sun 16:00	0.44 · high	6.40 · high	28.20 · good	poor
Sun 17:00	0.42 · high	7.40 · high	28.20 · good	poor
Sun 18:00	0.42 · high	6.90 · high	28.20 · good	poor
Sun 19:00	0.42 · high	7.00 · high	28.20 · good	poor
Sun 20:00	0.42 · high	6.40 · high	28.10 · good	poor
Sun 21:00	0.42 · high	7.00 · high	28.10 · good	poor
Sun 22:00	0.42 · high	8.00 · high	28.10 · good	poor
Sun 23:00	0.42 · high	9.80 · high	28.10 · good	poor
Mon 00:00	0.42 · high	10.90 · high	28.20 · good	fair
Mon 01:00	0.42 · high	10.40 · high	28.20 · good	fair
Mon 02:00	0.42 · high	10.30 · high	28.30 · good	poor
Mon 03:00	0.42 · high	10.80 · high	28.50 · good	poor
Mon 04:00	0.44 · high	14.10 · high	28.60 · good	poor
Mon 05:00	0.44 · high	15.70 · high	28.70 · good	fair
Mon 06:00	0.46 · high	14.40 · high	28.70 · good	fair
Mon 07:00	0.46 · high	12.80 · high	28.70 · good	fair
Mon 08:00	0.46 · high	11.70 · high	28.70 · good	fair
Mon 09:00	0.44 · high	10.40 · high	28.80 · good	fair
Mon 10:00	0.44 · high	7.00 · high	28.80 · good	fair
Mon 11:00	0.46 · high	3.60 · good	28.80 · good	poor
Mon 12:00	0.46 · high	1.90 · good	28.70 · good	poor
Mon 13:00	0.46 · high	1.20 · good	28.70 · good	poor
Mon 14:00	0.46 · high	0.70 · good	28.70 · good	poor
Mon 15:00	0.46 · high	1.20 · good	28.60 · good	poor
Mon 16:00	0.46 · high	1.90 · good	28.60 · good	poor
Mon 17:00	0.46 · high	1.00 · good	28.50 · good	poor
Mon 18:00	0.46 · high	0.40 · good	28.50 · good	poor
Mon 19:00	0.44 · high	0.40 · good	28.50 · good	poor
Mon 20:00	0.44 · high	0.60 · good	28.50 · good	poor
Mon 21:00	0.42 · high	0.80 · good	28.50 · good	poor
Mon 22:00	0.42 · high	3.30 · good	28.50 · good	poor
Mon 23:00	0.40 · high	2.80 · good	28.50 · good	poor
Tue 00:00	0.40 · high	2.60 · good	28.60 · good	good
Tue 01:00	0.40 · high	3.50 · good	28.70 · good	good
Tue 02:00	0.40 · high	6.40 · high	28.90 · good	fair
Tue 03:00	0.40 · high	8.60 · high	29.10 · good	fair
Tue 04:00	0.40 · high	10.10 · high	29.30 · good	fair
Tue 05:00	0.38 · high	12.90 · high	29.40 · good	fair
Tue 06:00	0.38 · high	14.00 · high	29.50 · good	fair
Tue 07:00	0.38 · high	12.10 · high	29.50 · good	fair
Tue 08:00	0.36 · good	6.60 · high	29.50 · good	fair
Tue 09:00	0.36 · good	5.80 · high	29.40 · good	good
Tue 10:00	0.36 · good	6.70 · high	29.30 · good	good
Tue 11:00	0.38 · high	7.60 · high	29.20 · good	poor
Tue 12:00	0.38 · high	9.30 · high	29.20 · good	poor
Tue 13:00	0.38 · high	9.00 · high	29.10 · good	poor
Tue 14:00	0.40 · high	7.60 · high	29.00 · good	poor
Tue 15:00	0.40 · high	6.50 · high	29.00 · good	poor
Tue 16:00	0.40 · high	8.00 · high	28.90 · good	poor
Tue 17:00	0.42 · high	7.10 · high	28.90 · good	poor
Tue 18:00	0.42 · high	6.90 · high	28.80 · good	poor
Tue 19:00	0.42 · high	7.10 · high	28.80 · good	poor
Tue 20:00	0.42 · high	6.60 · high	28.80 · good	poor
Tue 21:00	0.42 · high	6.80 · high	28.70 · good	poor
Tue 22:00	0.42 · high	7.50 · high	28.70 · good	poor
Tue 23:00	0.44 · high	9.30 · high	28.70 · good	poor
Wed 00:00	0.44 · high	11.10 · high	28.70 · good	poor
Wed 01:00	0.46 · high	12.00 · high	28.80 · good	poor
Wed 02:00	0.50 · high	11.80 · high	28.90 · good	poor
Wed 03:00	0.52 · high	13.90 · high	29.00 · good	poor
Wed 04:00	0.56 · high	15.80 · high	29.10 · good	fair
Wed 05:00	0.58 · high	16.00 · high	29.20 · good	poor
Wed 06:00	0.62 · high	16.80 · high	29.20 · good	poor
Wed 07:00	0.64 · high	19.40 · high	29.20 · good	poor
Wed 08:00	0.68 · high	19.10 · high	29.20 · good	poor
Wed 09:00	0.70 · high	18.90 · high	29.10 · good	poor