SnorkelForecast.com

Okinawa - Blue Cave Snorkel Report Today

Japan · Updated Tue 19:58 (JST) · Source: Snapshot

The skinny

Marginal Report Wed 08:24

Okinawa - Blue Cave looks marginal today. The least-bad daylight window is around Thu 10:00, but waves is limiting the forecast.

Score: 4.5/10

Best time: Thu 10:00

Main risk: Waves

Best morning signal: Wed 11:00 (Fair).

Best afternoon signal: Wed 16:00 (Fair). Peak afternoon wind is about 7.7 m/s.

Email me when it is good

Sunrise

06:08

Sunset

18:48

Water

28.3°C

Max air

30.3°C

Sky

Cloudy

98% cloud

No good model window in the next 72 hours

Use the best-available section for the least-bad times.

3-day planner Best available Show data

3-day planner

Wednesday

⚠️ Fair conditions

Main blocker: Waves

Thursday

⚠️ Fair conditions

Main blocker: Waves

Friday

❌ Poor conditions

Main blocker: Waves

Best available hours

  • Thu 01:00: Fair (0.45) · still limited by waves
  • Wed 07:00: Fair (0.45) · still limited by waves, wind
  • Wed 06:00: Fair (0.44) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (67 hours)
  • Tide/current (47 hours)
  • Darkness (37 hours)

Jellyfish drift risk

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

Low · 28/100

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

Wed 01:00, Wed 13:00, Thu 02:00, Thu 13:00, Fri 03:00, Fri 14:00

Nearby alternatives in Japan

Kerama Islands

56 km away

❌ Poor

Miyako

314 km away

❌ Poor

Ishigaki

438 km away

❌ Poor

Advanced forecast data

Viewing current forecast

Tue 23:00 – Fri 23:00 (JST)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.45 around Wed 16:00; 7 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 0.88m to 1.04m).

Wind is at or below 5.4m/s in 11/24 sampled hours (range 3.48 to 7.69m/s).

Tides range from 0.38m to 1.88m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
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
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Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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
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Poor ❌ Limited
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Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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
Wed 00:00 0.92 · high 7.02 · high 28.30 · good Poor
Wed 01:00 0.94 · high 6.75 · high 28.30 · good Fair
Wed 02:00 0.96 · high 7.33 · high 28.40 · good Fair
Wed 03:00 0.98 · high 7.69 · high 28.40 · good Poor
Wed 04:00 0.98 · high 7.13 · high 28.50 · good Poor
Wed 05:00 0.96 · high 6.41 · high 28.50 · good Fair
Wed 06:00 0.96 · high 6.06 · high 28.50 · good Fair
Wed 07:00 0.96 · high 5.77 · high 28.50 · good Fair
Wed 08:00 0.96 · high 6.01 · high 28.50 · good Fair
Wed 09:00 0.96 · high 5.09 · good 28.50 · good Fair
Wed 10:00 0.98 · high 5.81 · high 28.50 · good Poor
Wed 11:00 1.00 · high 5.44 · high 28.40 · good Poor
Wed 12:00 1.02 · high 6.17 · high 28.40 · good Poor
Wed 13:00 1.02 · high 5.74 · high 28.40 · good Poor
Wed 14:00 1.04 · high 5.19 · good 28.40 · good Poor
Wed 15:00 1.04 · high 5.23 · good 28.40 · good Poor
Wed 16:00 1.04 · high 5.09 · good 28.40 · good Poor
Wed 17:00 1.04 · high 4.93 · good 28.40 · good Poor
Wed 18:00 1.04 · high 4.71 · good 28.40 · good Poor
Wed 19:00 1.00 · high 4.44 · good 28.40 · good Poor
Wed 20:00 0.98 · high 4.00 · good 28.40 · good Poor
Wed 21:00 0.94 · high 3.54 · good 28.40 · good Poor
Wed 22:00 0.90 · high 3.48 · good 28.40 · good Poor
Wed 23:00 0.88 · high 4.43 · good 28.40 · good Poor
Thu 00:00 0.84 · high 3.88 · good 28.40 · good Fair
Thu 01:00 0.84 · high 3.79 · good 28.50 · good Fair
Thu 02:00 0.84 · high 3.69 · good 28.60 · good Fair
Thu 03:00 0.84 · high 3.86 · good 28.70 · good Fair
Thu 04:00 0.84 · high 4.47 · good 28.80 · good Poor
Thu 05:00 0.86 · high 4.16 · good 28.90 · good Poor
Thu 06:00 0.86 · high 5.10 · good 28.90 · good Poor
Thu 07:00 0.86 · high 5.71 · high 28.90 · good Poor
Thu 08:00 0.84 · high 5.50 · high 28.90 · good Poor
Thu 09:00 0.84 · high 5.17 · good 28.90 · good Poor
Thu 10:00 0.84 · high 5.39 · good 28.80 · good Poor
Thu 11:00 0.86 · high 5.49 · high 28.80 · good Poor
Thu 12:00 0.86 · high 5.36 · good 28.70 · good Poor
Thu 13:00 0.86 · high 5.19 · good 28.70 · good Poor
Thu 14:00 0.88 · high 5.16 · good 28.70 · good Poor
Thu 15:00 0.88 · high 5.46 · high 28.70 · good Poor
Thu 16:00 0.92 · high 5.82 · high 28.60 · good Poor
Thu 17:00 0.96 · high 5.66 · high 28.60 · good Poor
Thu 18:00 1.00 · high 5.50 · high 28.60 · good Poor
Thu 19:00 1.02 · high 5.52 · high 28.60 · good Poor
Thu 20:00 1.02 · high 4.84 · good 28.60 · good Poor
Thu 21:00 1.04 · high 4.65 · good 28.60 · good Poor
Thu 22:00 1.02 · high 4.28 · good 28.60 · good Poor
Thu 23:00 1.02 · high 4.45 · good 28.60 · good Poor
Fri 00:00 1.00 · high 5.19 · good 28.60 · good Poor
Fri 01:00 1.00 · high 5.23 · good 28.70 · good Poor
Fri 02:00 1.02 · high 4.62 · good 28.70 · good Poor
Fri 03:00 1.02 · high 5.48 · high 28.80 · good Poor
Fri 04:00 1.02 · high 5.52 · high 28.90 · good Poor
Fri 05:00 1.04 · high 5.25 · good 28.90 · good Poor
Fri 06:00 1.04 · high 5.40 · good 29.00 · good Poor
Fri 07:00 1.04 · high 5.56 · high 29.00 · good Poor
Fri 08:00 1.02 · high 5.35 · good 29.00 · good Poor
Fri 09:00 1.02 · high 4.36 · good 28.90 · good Poor
Fri 10:00 1.00 · high 4.11 · good 28.90 · good Poor
Fri 11:00 1.00 · high 4.05 · good 28.90 · good Poor
Fri 12:00 0.98 · high 3.63 · good 28.80 · good Poor
Fri 13:00 0.98 · high 3.40 · good 28.80 · good Poor
Fri 14:00 0.98 · high 3.27 · good 28.80 · good Poor
Fri 15:00 0.98 · high 2.85 · good 28.80 · good Poor
Fri 16:00 0.96 · high 3.10 · good 28.70 · good Poor
Fri 17:00 0.96 · high 2.89 · good 28.70 · good Poor
Fri 18:00 0.94 · high 2.89 · good 28.70 · good Poor