Can you snorkel in Okinawa - Blue Cave today?

Yes. The next good snorkeling window in Okinawa - Blue Cave starts Tue 00:00 and lasts until 03:00. Around 19% 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 Sat 04:01 (JST) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Mon 15:20

Okinawa - Blue Cave has a usable snorkeling window around Tue 09:00. The main thing to watch is waves.

Score: 6.3/10

Best time: Tue 09:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Mon 16:00 (Fair). Peak afternoon wind is about 2.5 m/s.

Email me when it is good

Sunrise

05:47

Sunset

19:22

Water

29.6°C

Max air

30.1°C

Sky

Clear

30% cloud

Good window is available today

Next safe window: Tue 00:00–03:00 (19% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Monday

⚠️ fair conditions

Main blocker: Waves

Tuesday

✅ good conditions

Main blocker: Waves

Best available hours

Next safe window starts at Tue 00:00 until 03:00.

Why this verdict

Main blockers across the next 72 hours:

Waves (21 hours)
Darkness (13 hours)
Tide/current (11 hours)

Jellyfish drift risk

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

Low · 34/100

Low drift risk now.

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

Mon 14:00

Nearby alternatives in Japan

Kerama Islands

56 km away

⚠️ Fair

Miyako

314 km away

⚠️ Fair

Ishigaki

438 km away

⚠️ Fair

Advanced forecast data

Viewing historical data

Thu 06:00 – Sun 06:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.34 around Thu 18:00; 0 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 0.66m to 0.82m).

Wind is at or below 5.4m/s in 22/24 sampled hours (range 3.95 to 5.44m/s).

Tides range from -0.08m to 2.02m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview

Thu 06:00 poor ❌ Limited

Thu 07:00 poor ❌ Limited

Thu 08:00 poor ❌ Limited

Thu 09:00 poor ❌ Limited

Thu 10:00 poor ❌ Limited

Thu 11:00 poor ❌ Limited

Thu 12:00 poor ❌ Limited

Thu 13:00 poor ❌ Limited

Thu 14:00 poor ❌ Limited

Thu 15:00 poor ❌ Limited

Thu 16:00 poor ❌ Limited

Thu 17:00 poor ❌ Limited

Thu 18:00 poor ❌ Limited

Thu 19:00 poor ❌ Limited

Thu 20:00 poor ❌ Limited

Thu 21:00 poor ❌ Limited

Thu 22:00 poor ❌ Limited

Thu 23:00 poor ❌ Limited

Fri 00:00 poor ❌ Limited

Fri 01:00 poor ❌ Limited

Fri 02:00 poor ❌ Limited

Fri 03:00 poor ❌ Limited

Fri 04:00 poor ❌ Limited

Fri 05:00 poor ❌ Limited

Fri 06:00 poor ❌ Limited

Fri 07:00 poor ❌ Limited

Fri 08:00 poor ❌ Limited

Fri 09:00 poor ❌ Limited

Fri 10:00 fair ⚠️ Fair

Fri 11:00 poor ❌ Limited

Fri 12:00 poor ❌ Limited

Fri 13:00 poor ❌ Limited

Fri 14:00 poor ❌ Limited

Fri 15:00 poor ❌ Limited

Fri 16:00 poor ❌ Limited

Fri 17:00 poor ❌ Limited

Fri 18:00 poor ❌ Limited

Fri 19:00 poor ❌ Limited

Fri 20:00 poor ❌ Limited

Fri 21:00 poor ❌ Limited

Fri 22:00 poor ❌ Limited

Fri 23:00 poor ❌ Limited

Sat 00:00 fair ⚠️ Fair

Sat 01:00 fair ⚠️ Fair

Sat 02:00 fair ⚠️ Fair

Sat 03:00 fair ⚠️ Fair

Sat 04:00 fair ⚠️ Fair

Sat 05:00 fair ⚠️ Fair

Sat 06:00 fair ⚠️ Fair

Sat 07:00 fair ⚠️ Fair

Sat 08:00 fair ⚠️ Fair

Sat 09:00 fair ⚠️ Fair

Sat 10:00 fair ⚠️ Fair

Sat 11:00 poor ❌ Limited

Sat 12:00 poor ❌ Limited

Sat 13:00 poor ❌ Limited

Sat 14:00 poor ❌ Limited

Sat 15:00 poor ❌ Limited

Sat 16:00 poor ❌ Limited

Sat 17:00 poor ❌ Limited

Sat 18:00 poor ❌ Limited

Sat 19:00 poor ❌ Limited

Sat 20:00 poor ❌ Limited

Sat 21:00 poor ❌ Limited

Sat 22:00 poor ❌ Limited

Sat 23:00 poor ❌ Limited

Sun 00:00 fair ⚠️ Fair

Sun 01:00 fair ⚠️ Fair

Sun 02:00 fair ⚠️ Fair

Sun 03:00 fair ⚠️ Fair

Sun 04:00 fair ⚠️ Fair

Sun 05:00 fair ⚠️ Fair

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
Thu 06:00	0.66 · high	4.38 · good	28.10 · good	poor
Thu 07:00	0.66 · high	4.57 · good	28.10 · good	poor
Thu 08:00	0.66 · high	4.73 · good	28.00 · good	poor
Thu 09:00	0.66 · high	4.85 · good	28.00 · good	poor
Thu 10:00	0.68 · high	4.81 · good	27.90 · good	poor
Thu 11:00	0.70 · high	4.41 · good	27.90 · good	poor
Thu 12:00	0.72 · high	4.07 · good	27.80 · good	poor
Thu 13:00	0.74 · high	3.95 · good	27.80 · good	poor
Thu 14:00	0.76 · high	3.99 · good	27.80 · good	poor
Thu 15:00	0.78 · high	4.12 · good	27.70 · good	poor
Thu 16:00	0.78 · high	4.33 · good	27.70 · good	poor
Thu 17:00	0.80 · high	4.70 · good	27.70 · good	poor
Thu 18:00	0.80 · high	4.32 · good	27.70 · good	poor
Thu 19:00	0.80 · high	4.49 · good	27.70 · good	poor
Thu 20:00	0.82 · high	4.65 · good	27.70 · good	poor
Thu 21:00	0.82 · high	4.51 · good	27.70 · good	poor
Thu 22:00	0.82 · high	4.92 · good	27.70 · good	poor
Thu 23:00	0.80 · high	4.97 · good	27.70 · good	poor
Fri 00:00	0.80 · high	5.43 · high	27.70 · good	poor
Fri 01:00	0.80 · high	5.30 · good	27.80 · good	poor
Fri 02:00	0.80 · high	4.82 · good	27.80 · good	poor
Fri 03:00	0.80 · high	4.67 · good	27.90 · good	poor
Fri 04:00	0.80 · high	5.09 · good	28.00 · good	poor
Fri 05:00	0.78 · high	5.44 · high	28.00 · good	poor
Fri 06:00	0.78 · high	5.23 · good	28.10 · good	poor
Fri 07:00	0.78 · high	5.15 · good	28.10 · good	poor
Fri 08:00	0.78 · high	5.05 · good	28.00 · good	poor
Fri 09:00	0.78 · high	4.66 · good	28.00 · good	poor
Fri 10:00	0.78 · high	4.09 · good	28.00 · good	fair
Fri 11:00	0.76 · high	3.62 · good	27.90 · good	poor
Fri 12:00	0.76 · high	3.36 · good	27.90 · good	poor
Fri 13:00	0.74 · high	3.17 · good	27.90 · good	poor
Fri 14:00	0.74 · high	3.36 · good	27.80 · good	poor
Fri 15:00	0.72 · high	3.80 · good	27.80 · good	poor
Fri 16:00	0.72 · high	4.28 · good	27.80 · good	poor
Fri 17:00	0.72 · high	4.30 · good	27.80 · good	poor
Fri 18:00	0.72 · high	3.94 · good	27.80 · good	poor
Fri 19:00	0.72 · high	3.54 · good	27.80 · good	poor
Fri 20:00	0.72 · high	3.75 · good	27.80 · good	poor
Fri 21:00	0.72 · high	3.58 · good	27.80 · good	poor
Fri 22:00	0.74 · high	3.73 · good	27.80 · good	poor
Fri 23:00	0.74 · high	3.49 · good	27.80 · good	poor
Sat 00:00	0.76 · high	3.30 · good	27.80 · good	fair
Sat 01:00	0.76 · high	3.61 · good	27.90 · good	fair
Sat 02:00	0.78 · high	3.61 · good	27.90 · good	fair
Sat 03:00	0.78 · high	4.21 · good	28.00 · good	fair
Sat 04:00	0.78 · high	4.35 · good	28.10 · good	fair
Sat 05:00	0.66 · high	4.50 · good	28.70 · good	fair
Sat 06:00	0.66 · high	4.43 · good	28.70 · good	fair
Sat 07:00	0.66 · high	4.29 · good	28.70 · good	fair
Sat 08:00	0.64 · high	4.00 · good	28.70 · good	fair
Sat 09:00	0.64 · high	3.55 · good	28.60 · good	fair
Sat 10:00	0.64 · high	2.94 · good	28.60 · good	fair
Sat 11:00	0.62 · high	3.08 · good	28.50 · good	poor
Sat 12:00	0.62 · high	2.98 · good	28.50 · good	poor
Sat 13:00	0.62 · high	2.62 · good	28.40 · good	poor
Sat 14:00	0.62 · high	2.55 · good	28.40 · good	poor
Sat 15:00	0.62 · high	2.68 · good	28.40 · good	poor
Sat 16:00	0.64 · high	2.62 · good	28.30 · good	poor
Sat 17:00	0.64 · high	2.58 · good	28.30 · good	poor
Sat 18:00	0.66 · high	2.19 · good	28.30 · good	poor
Sat 19:00	0.68 · high	1.68 · good	28.30 · good	poor
Sat 20:00	0.68 · high	1.14 · good	28.30 · good	poor
Sat 21:00	0.70 · high	1.03 · good	28.30 · good	poor
Sat 22:00	0.70 · high	1.14 · good	28.40 · good	poor
Sat 23:00	0.70 · high	0.67 · good	28.40 · good	poor
Sun 00:00	0.70 · high	0.96 · good	28.50 · good	fair
Sun 01:00	0.70 · high	1.63 · good	28.60 · good	fair
Sun 02:00	0.68 · high	1.72 · good	28.80 · good	fair
Sun 03:00	0.68 · high	1.36 · good	29.00 · good	fair
Sun 04:00	0.68 · high	0.63 · good	29.20 · good	fair
Sun 05:00	0.66 · high	0.61 · good	29.40 · good	fair