MARINE REPORT / 72 HOURS

Miyako Snorkel Report Today

Japan · Updated Sun 14:17 (JST) · Source: Snapshot

The skinny

Marginal Data updated Sun 14:17 (JST)

Miyako looks marginal today. The least-bad daylight window is around Sun 18:00, but waves is limiting the forecast.

Right now (forecast)

Fair · 4.3/10

Sun 16:00 (JST)

Later today

Fair · 4.0/10

Sun 18:00 (JST)

Next three days

Fair · 5.0/10

Mon 16:00 (JST)

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

Score: 4.0/10

Best time: Sun 18:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sun 18:00 (Fair). Peak afternoon wind is about 5.8 m/s.

Email me when it is good

Sunrise

06:37

Sunset

18:09

Water

28.4°C

Max air

27.7°C

Sky

Partly cloudy

43% 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

Sunday

⚠️ Fair conditions

Main blocker: Waves

Monday

⚠️ Fair conditions

Main blocker: Waves

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Mon 16:00: Fair (0.50) · still limited by waves
  • Mon 17:00: Fair (0.45) · still limited by waves, wind
  • Mon 11:00: Fair (0.43) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (69 hours)
  • Tide/current (63 hours)
  • Darkness (42 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Sun 22:00.

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

Mon 15:00, Tue 01:00, Tue 15:00

Nearby alternatives in Japan

Ishigaki

127 km away

⚠️ Fair

Kerama Islands

257 km away

⚠️ Fair

Okinawa - Blue Cave

314 km away

✅ Good

Advanced forecast data

Viewing historical data

Sun 16:00 – Wed 16:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.42 around Mon 12:00; 6 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 1.18m to 1.4m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 6.22 to 7.5m/s).

Tides range from 0.59m to 1.36m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
Fair ⚠️ Fair
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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
Fair ⚠️ Fair
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Sun 16:00 1.34 · high 7.50 · high 29.80 · good Fair
Sun 17:00 1.34 · high 7.18 · high 29.80 · good Fair
Sun 18:00 1.36 · high 6.96 · high 29.80 · good Fair
Sun 19:00 1.38 · high 6.74 · high 29.70 · good Poor
Sun 20:00 1.38 · high 7.14 · high 29.60 · good Poor
Sun 21:00 1.36 · high 6.64 · high 29.50 · good Poor
Sun 22:00 1.34 · high 6.85 · high 29.50 · good Poor
Sun 23:00 1.34 · high 6.61 · high 29.40 · good Poor
Mon 00:00 1.40 · high 6.99 · high 29.40 · good Poor
Mon 01:00 1.38 · high 6.86 · high 29.40 · good Poor
Mon 02:00 1.38 · high 6.69 · high 29.30 · good Poor
Mon 03:00 1.36 · high 6.29 · high 29.30 · good Poor
Mon 04:00 1.34 · high 6.22 · high 29.20 · good Poor
Mon 05:00 1.32 · high 6.31 · high 29.20 · good Poor
Mon 06:00 1.30 · high 6.28 · high 29.20 · good Poor
Mon 07:00 1.30 · high 6.24 · high 29.20 · good Poor
Mon 08:00 1.30 · high 6.63 · high 29.20 · good Poor
Mon 09:00 1.30 · high 6.37 · high 29.20 · good Fair
Mon 10:00 1.28 · high 6.51 · high 29.20 · good Poor
Mon 11:00 1.28 · high 6.66 · high 29.20 · good Fair
Mon 12:00 1.26 · high 6.61 · high 29.30 · good Fair
Mon 13:00 1.24 · high 6.73 · high 29.40 · good Poor
Mon 14:00 1.20 · high 6.89 · high 29.40 · good Poor
Mon 15:00 1.18 · high 7.22 · high 29.40 · good Poor
Mon 16:00 1.16 · high 6.92 · high 29.40 · good Fair
Mon 17:00 1.14 · high 6.55 · high 29.40 · good Fair
Mon 18:00 1.12 · high 6.25 · high 29.40 · good Fair
Mon 19:00 1.08 · high 5.95 · high 29.40 · good Poor
Mon 20:00 1.08 · high 5.88 · high 29.30 · good Poor
Mon 21:00 1.04 · high 5.45 · high 29.20 · good Poor
Mon 22:00 1.02 · high 5.59 · high 29.20 · good Poor
Mon 23:00 0.98 · high 6.08 · high 29.20 · good Poor
Tue 00:00 0.96 · high 5.27 · good 29.10 · good Poor
Tue 01:00 0.94 · high 5.15 · good 29.10 · good Poor
Tue 02:00 0.94 · high 5.03 · good 29.10 · good Poor
Tue 03:00 0.92 · high 4.69 · good 29.00 · good Poor
Tue 04:00 0.90 · high 4.52 · good 29.00 · good Poor
Tue 05:00 0.88 · high 4.41 · good 29.00 · good Poor
Tue 06:00 0.86 · high 4.12 · good 28.90 · good Poor
Tue 07:00 0.84 · high 4.12 · good 28.90 · good Poor
Tue 08:00 0.82 · high 4.12 · good 28.90 · good Poor
Tue 09:00 0.80 · high 4.16 · good 28.90 · good Fair
Tue 10:00 0.80 · high 4.05 · good 28.90 · good Poor
Tue 11:00 0.78 · high 4.18 · good 29.00 · good Fair
Tue 12:00 0.78 · high 3.94 · good 29.00 · good Fair
Tue 13:00 0.76 · high 3.91 · good 29.10 · good Poor
Tue 14:00 0.74 · high 3.84 · good 29.20 · good Poor
Tue 15:00 0.72 · high 4.03 · good 29.20 · good Poor
Tue 16:00 0.72 · high 3.83 · good 29.20 · good Fair
Tue 17:00 0.72 · high 3.83 · good 29.20 · good Fair
Tue 18:00 0.72 · high 3.98 · good 29.20 · good Fair
Tue 19:00 0.72 · high 3.87 · good 29.20 · good Poor
Tue 20:00 0.66 · high 3.51 · good 28.90 · good Poor
Tue 21:00 0.66 · high 3.59 · good 28.90 · good Poor
Tue 22:00 0.66 · high 3.70 · good 28.90 · good Poor
Tue 23:00 0.64 · high 3.03 · good 28.90 · good Poor
Wed 00:00 0.64 · high 3.49 · good 28.90 · good Poor
Wed 01:00 0.66 · high 3.82 · good 28.80 · good Poor
Wed 02:00 0.66 · high 3.24 · good 28.80 · good Poor
Wed 03:00 0.66 · high 3.04 · good 28.80 · good Poor
Wed 04:00 0.64 · high 3.18 · good 28.70 · good Poor
Wed 05:00 0.62 · high 3.29 · good 28.70 · good Poor
Wed 06:00 0.60 · high 3.11 · good 28.70 · good Poor
Wed 07:00 0.60 · high 3.40 · good 28.70 · good Poor
Wed 08:00 0.58 · high 3.62 · good 28.70 · good Poor
Wed 09:00 0.58 · high 3.69 · good 28.70 · good Fair
Wed 10:00 0.58 · high 3.89 · good 28.70 · good Fair
Wed 11:00 0.58 · high 4.20 · good 28.80 · good Fair
Wed 12:00 0.58 · high 4.46 · good 28.90 · good Fair
Wed 13:00 0.58 · high 4.28 · good 29.00 · good Fair
Wed 14:00 0.56 · high 4.56 · good 29.00 · good Fair
Wed 15:00 0.56 · high 4.34 · good 29.10 · good Fair