MARINE REPORT / 72 HOURS

Miyako Snorkel Report Today

Japan · Updated Sun 04:55 (JST) · Source: Snapshot

The skinny

Marginal Data updated Sun 04:55 (JST)

Miyako looks marginal today. The least-bad daylight window is around Sun 14:00, but waves is limiting the forecast.

Right now (forecast)

Poor · 0.0/10

Sun 06:00 (JST)

Later today

Fair · 4.4/10

Sun 14:00 (JST)

Next three days

Fair · 5.4/10

Mon 16:00 (JST)

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

Score: 4.4/10

Best time: Sun 14:00

Main risk: Waves

Best morning signal: Sun 09:00 (Fair).

Best afternoon signal: Sun 14:00 (Fair). Peak afternoon wind is about 6.0 m/s.

Email me when it is good

Sunrise

06:37

Sunset

18:10

Water

28.0°C

Max air

29.2°C

Sky

Clear

1% 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 (0.54) · still limited by waves
  • Mon 15:00: Fair (0.51) · still limited by waves, tide/current
  • Mon 17:00: Fair (0.49) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (69 hours)
  • Tide/current (61 hours)
  • Darkness (39 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Sun 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: Tue 01:00

Sun 13:00, Mon 15:00, Tue 01:00, Tue 15:00

Nearby alternatives in Japan

Ishigaki

127 km away

❌ Poor

Kerama Islands

257 km away

❌ Poor

Okinawa - Blue Cave

314 km away

✅ Good

Advanced forecast data

Viewing historical data

Wed 06:00 – Sat 06:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.7 around Wed 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.

7/24 sampled hours stay at or below 0.36m (range 0.36m to 0.4m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.29 to 1.95m/s).

Tides range from 0.11m to 1.88m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
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 06:00 0.40 · high 0.34 · good 29.50 · good Poor
Wed 07:00 0.40 · high 0.64 · good 29.40 · good Poor
Wed 08:00 0.38 · high 0.86 · good 29.40 · good Poor
Wed 09:00 0.38 · high 0.29 · good 29.40 · good Good
Wed 10:00 0.38 · high 0.81 · good 29.50 · good Good
Wed 11:00 0.38 · high 1.32 · good 29.60 · good Good
Wed 12:00 0.38 · high 1.71 · good 29.70 · good Good
Wed 13:00 0.38 · high 1.95 · good 29.80 · good Good
Wed 14:00 0.36 · good 1.77 · good 29.90 · good Good
Wed 15:00 0.36 · good 1.72 · good 29.90 · good Good
Wed 16:00 0.36 · good 1.66 · good 29.90 · good Good
Wed 17:00 0.36 · good 1.83 · good 30.00 · good Good
Wed 18:00 0.36 · good 1.82 · good 29.90 · good Good
Wed 19:00 0.36 · good 1.34 · good 29.90 · good Poor
Wed 20:00 0.38 · high 1.16 · good 29.90 · good Poor
Wed 21:00 0.38 · high 1.38 · good 29.90 · good Poor
Wed 22:00 0.38 · high 1.32 · good 29.90 · good Poor
Wed 23:00 0.38 · high 1.26 · good 29.90 · good Poor
Thu 00:00 0.38 · high 1.04 · good 29.80 · good Poor
Thu 01:00 0.38 · high 0.76 · good 29.80 · good Poor
Thu 02:00 0.38 · high 0.82 · good 29.80 · good Poor
Thu 03:00 0.38 · high 0.86 · good 29.70 · good Poor
Thu 04:00 0.38 · high 0.86 · good 29.70 · good Poor
Thu 05:00 0.36 · good 0.84 · good 29.70 · good Poor
Thu 06:00 0.36 · good 0.82 · good 29.60 · good Poor
Thu 07:00 0.36 · good 0.83 · good 29.60 · good Poor
Thu 08:00 0.36 · good 1.08 · good 29.60 · good Poor
Thu 09:00 0.36 · good 1.31 · good 29.60 · good Good
Thu 10:00 0.36 · good 1.85 · good 29.70 · good Good
Thu 11:00 0.34 · good 2.05 · good 29.80 · good Good
Thu 12:00 0.34 · good 2.30 · good 29.90 · good Good
Thu 13:00 0.34 · good 2.35 · good 29.90 · good Good
Thu 14:00 0.34 · good 2.38 · good 30.00 · good Good
Thu 15:00 0.34 · good 2.55 · good 30.10 · good Good
Thu 16:00 0.34 · good 3.34 · good 30.10 · good Fair
Thu 17:00 0.32 · good 3.55 · good 30.10 · good Good
Thu 18:00 0.32 · good 3.22 · good 30.10 · good Good
Thu 19:00 0.32 · good 3.18 · good 30.00 · good Poor
Thu 20:00 0.34 · good 3.12 · good 30.00 · good Poor
Thu 21:00 0.34 · good 2.87 · good 30.00 · good Poor
Thu 22:00 0.34 · good 2.53 · good 30.00 · good Poor
Thu 23:00 0.36 · good 2.17 · good 30.00 · good Poor
Fri 00:00 0.36 · good 3.46 · good 29.90 · good Poor
Fri 01:00 0.36 · good 2.63 · good 29.90 · good Poor
Fri 02:00 0.34 · good 3.90 · good 29.90 · good Poor
Fri 03:00 0.34 · good 3.47 · good 29.80 · good Poor
Fri 04:00 0.34 · good 2.33 · good 29.80 · good Poor
Fri 05:00 0.34 · good 3.01 · good 29.80 · good Poor
Fri 06:00 0.34 · good 2.86 · good 29.70 · good Poor
Fri 07:00 0.34 · good 2.82 · good 29.70 · good Poor
Fri 08:00 0.32 · good 2.58 · good 29.70 · good Poor
Fri 09:00 0.32 · good 2.76 · good 29.70 · good Good
Fri 10:00 0.32 · good 2.77 · good 29.70 · good Good
Fri 11:00 0.32 · good 3.11 · good 29.80 · good Good
Fri 12:00 0.32 · good 3.14 · good 29.90 · good Good
Fri 13:00 0.34 · good 3.88 · good 29.90 · good Good
Fri 14:00 0.34 · good 3.83 · good 30.00 · good Fair
Fri 15:00 0.36 · good 4.50 · good 30.00 · good Fair
Fri 16:00 0.38 · high 5.03 · good 30.00 · good Fair
Fri 17:00 0.42 · high 4.54 · good 30.00 · good Fair
Fri 18:00 0.44 · high 3.38 · good 30.00 · good Fair
Fri 19:00 0.48 · high 4.85 · good 30.00 · good Poor
Fri 20:00 0.52 · high 4.58 · good 29.90 · good Poor
Fri 21:00 0.56 · high 3.40 · good 29.90 · good Poor
Fri 22:00 0.60 · high 4.31 · good 29.80 · good Poor
Fri 23:00 0.62 · high 5.37 · good 29.80 · good Poor
Sat 00:00 0.66 · high 5.90 · high 29.80 · good Poor
Sat 01:00 0.70 · high 5.02 · good 29.70 · good Poor
Sat 02:00 0.76 · high 5.57 · high 29.70 · good Poor
Sat 03:00 0.84 · high 5.25 · good 29.70 · good Poor
Sat 04:00 0.86 · high 5.64 · high 29.60 · good Poor
Sat 05:00 0.90 · high 5.87 · high 29.60 · good Poor