MARINE REPORT / 72 HOURS

Okinawa - Blue Cave Snorkel Report Today

Japan · Updated Mon 20:08 (JST) · Source: Snapshot

The skinny

Poor Data updated Mon 20:08 (JST)

Okinawa - Blue Cave has no good model window later today. Check the three-day outlook and official beach advisories.

Right now (forecast)

Poor · 0.0/10

Mon 20:00 (JST)

Later today

No fresh data for this period.

Next three days

Good · 6.1/10

Tue 10:00 (JST)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 0.0/10

Best time: -

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:29

Sunset

17:57

Water

28.0°C

Max air

25.6°C

Sky

Partly cloudy

44% cloud

Good model window in the next 72 hours

Next good model window: Tue 09:00–12:00 (6% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Monday

❌ Poor conditions

Main blocker: Waves

Tuesday

✅ Good conditions

Main blocker: Waves

Wednesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

The next good model window starts at Tue 09:00 and lasts until 12:00.

Why this verdict

Main blockers across the next 72 hours:

  • Waves (71 hours)
  • Tide/current (60 hours)
  • Darkness (44 hours)

Jellyfish drift risk

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

Low · 31/100

Low peak drift risk around Tue 13:00.

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: Tue 01:00

Tue 01:00, Wed 03:00, Wed 16:00, Thu 04:00

Nearby alternatives in Japan

Kerama Islands

56 km away

❌ Poor

Miyako

314 km away

❌ Poor

Ishigaki

438 km away

❌ Poor

Advanced forecast data

Viewing historical data

Sun 20:00 – Wed 20:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.61 around Mon 09:00; 10 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 0.46m to 1.0m).

Wind is at or below 5.4m/s in 23/24 sampled hours (range 1.68 to 5.83m/s).

Tides range from 0.38m to 1.47m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Sun 20:00 0.48 · high 1.90 · good 29.10 · good Poor
Sun 21:00 0.48 · high 2.44 · good 29.00 · good Poor
Sun 22:00 0.48 · high 2.53 · good 29.00 · good Poor
Sun 23:00 0.48 · high 2.82 · good 29.00 · good Poor
Mon 00:00 0.48 · high 2.73 · good 29.00 · good Poor
Mon 01:00 0.48 · high 2.64 · good 28.90 · good Poor
Mon 02:00 0.46 · high 2.55 · good 28.90 · good Poor
Mon 03:00 0.50 · high 1.68 · good 28.90 · good Poor
Mon 04:00 0.50 · high 1.78 · good 28.90 · good Poor
Mon 05:00 0.52 · high 2.12 · good 28.90 · good Poor
Mon 06:00 0.52 · high 2.56 · good 28.90 · good Poor
Mon 07:00 0.52 · high 3.38 · good 28.90 · good Poor
Mon 08:00 0.52 · high 3.45 · good 28.90 · good Poor
Mon 09:00 0.52 · high 3.82 · good 28.90 · good Good
Mon 10:00 0.54 · high 4.41 · good 28.90 · good Fair
Mon 11:00 0.56 · high 4.82 · good 28.90 · good Fair
Mon 12:00 0.58 · high 4.79 · good 29.00 · good Fair
Mon 13:00 0.60 · high 5.00 · good 29.00 · good Fair
Mon 14:00 0.62 · high 4.98 · good 29.00 · good Fair
Mon 15:00 0.64 · high 4.68 · good 29.00 · good Fair
Mon 16:00 0.70 · high 4.47 · good 29.00 · good Fair
Mon 17:00 0.78 · high 4.60 · good 29.00 · good Fair
Mon 18:00 0.84 · high 5.83 · high 29.00 · good Fair
Mon 19:00 1.00 · high 5.17 · good 28.90 · good Poor
Mon 20:00 0.96 · high 5.76 · high 28.90 · good Poor
Mon 21:00 1.10 · high 6.71 · high 28.90 · good Poor
Mon 22:00 1.16 · high 6.45 · high 28.90 · good Poor
Mon 23:00 1.24 · high 6.49 · high 28.90 · good Poor
Tue 00:00 1.30 · high 6.51 · high 28.90 · good Poor
Tue 01:00 1.34 · high 6.59 · high 28.90 · good Poor
Tue 02:00 1.36 · high 6.68 · high 28.80 · good Poor
Tue 03:00 1.48 · high 6.41 · high 28.80 · good Poor
Tue 04:00 1.52 · high 7.01 · high 28.80 · good Poor
Tue 05:00 1.54 · high 6.91 · high 28.80 · good Poor
Tue 06:00 1.58 · high 7.56 · high 28.80 · good Poor
Tue 07:00 1.66 · high 8.01 · high 28.80 · good Poor
Tue 08:00 1.76 · high 8.26 · high 28.70 · good Poor
Tue 09:00 1.84 · high 9.01 · high 28.70 · good Poor
Tue 10:00 1.86 · high 9.23 · high 28.70 · good Poor
Tue 11:00 1.86 · high 8.70 · high 28.70 · good Poor
Tue 12:00 1.88 · high 8.34 · high 28.70 · good Poor
Tue 13:00 1.86 · high 8.53 · high 28.70 · good Poor
Tue 14:00 1.82 · high 8.72 · high 28.70 · good Poor
Tue 15:00 1.80 · high 7.97 · high 28.70 · good Poor
Tue 16:00 1.80 · high 7.91 · high 28.70 · good Poor
Tue 17:00 1.82 · high 7.96 · high 28.70 · good Fair
Tue 18:00 1.82 · high 7.47 · high 28.70 · good Fair
Tue 19:00 1.82 · high 6.77 · high 28.70 · good Poor
Tue 20:00 1.74 · high 6.41 · high 28.60 · good Poor
Tue 21:00 1.70 · high 6.51 · high 28.60 · good Poor
Tue 22:00 1.66 · high 6.21 · high 28.60 · good Poor
Tue 23:00 1.62 · high 5.75 · high 28.60 · good Poor
Wed 00:00 1.58 · high 6.10 · high 28.60 · good Poor
Wed 01:00 1.56 · high 6.15 · high 28.60 · good Poor
Wed 02:00 1.58 · high 5.65 · high 28.50 · good Poor
Wed 03:00 1.54 · high 5.24 · good 28.50 · good Poor
Wed 04:00 1.52 · high 5.18 · good 28.50 · good Poor
Wed 05:00 1.48 · high 5.19 · good 28.50 · good Poor
Wed 06:00 1.46 · high 5.11 · good 28.50 · good Poor
Wed 07:00 1.46 · high 4.95 · good 28.50 · good Poor
Wed 08:00 1.46 · high 5.34 · good 28.40 · good Poor
Wed 09:00 1.46 · high 6.27 · high 28.40 · good Poor
Wed 10:00 1.46 · high 6.63 · high 28.40 · good Fair
Wed 11:00 1.44 · high 6.75 · high 28.40 · good Fair
Wed 12:00 1.44 · high 6.65 · high 28.40 · good Fair
Wed 13:00 1.44 · high 7.18 · high 28.40 · good Fair
Wed 14:00 1.42 · high 6.46 · high 28.40 · good Fair
Wed 15:00 1.42 · high 6.81 · high 28.40 · good Poor
Wed 16:00 1.40 · high 6.58 · high 28.40 · good Fair
Wed 17:00 1.40 · high 6.37 · high 28.40 · good Fair
Wed 18:00 1.38 · high 6.15 · high 28.40 · good Fair
Wed 19:00 1.36 · high 4.69 · good 28.30 · good Poor