SnorkelForecast.com

Miyako Snorkel Report Today

Japan · Updated Sat 05:03 (JST) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Sun 22:59

Miyako looks marginal today. The least-bad daylight window is around Mon 19:00, but waves is limiting the forecast.

Score: 4.8/10

Best time: Mon 19:00

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:00

Sunset

19:29

Water

29.4°C

Max air

28.0°C

Sky

Clear

23% cloud

No safe 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

❌ poor conditions

Main blocker: Waves

Monday

⚠️ fair conditions

Main blocker: Waves

Tuesday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Mon 10:00 — Fair (0.48) · still limited by waves
  • Tue 02:00 — Fair (0.42) · still limited by waves, tide/current
  • Tue 01:00 — Fair (0.42) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (39 hours)
  • Tide/current (36 hours)
  • Darkness (23 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

Ishigaki

127 km away

❌ Poor

Kerama Islands

257 km away

❌ Poor

Okinawa - Blue Cave

314 km away

✅ Good

Advanced forecast data

Viewing historical data

Thu 13:00 – Sun 13:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.28 around Fri 10:00; 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 0.94m to 1.16m).

Wind is at or below 5.4m/s in 9/24 sampled hours (range 4.42 to 7.05m/s).

Tides range from 0.11m to 2.05m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
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fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
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fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Thu 13:00 0.96 · high 5.28 · good 28.80 · good poor
Thu 14:00 0.96 · high 5.02 · good 28.80 · good poor
Thu 15:00 0.94 · high 5.75 · high 28.80 · good poor
Thu 16:00 0.96 · high 5.57 · high 28.70 · good poor
Thu 17:00 0.98 · high 6.04 · high 28.70 · good poor
Thu 18:00 1.00 · high 6.38 · high 28.70 · good poor
Thu 19:00 1.02 · high 6.20 · high 28.70 · good poor
Thu 20:00 1.04 · high 5.49 · high 28.70 · good poor
Thu 21:00 1.06 · high 4.92 · good 28.70 · good poor
Thu 22:00 1.08 · high 5.19 · good 28.70 · good poor
Thu 23:00 1.08 · high 5.55 · high 28.70 · good poor
Fri 00:00 1.10 · high 6.34 · high 28.70 · good poor
Fri 01:00 1.12 · high 6.37 · high 28.80 · good poor
Fri 02:00 1.14 · high 6.61 · high 28.80 · good poor
Fri 03:00 1.16 · high 6.87 · high 28.90 · good poor
Fri 04:00 1.16 · high 7.05 · high 28.90 · good poor
Fri 05:00 1.16 · high 6.91 · high 29.00 · good poor
Fri 06:00 1.16 · high 6.38 · high 29.00 · good poor
Fri 07:00 1.12 · high 5.58 · high 29.00 · good poor
Fri 08:00 1.10 · high 5.17 · good 29.10 · good poor
Fri 09:00 1.06 · high 4.42 · good 29.10 · good poor
Fri 10:00 1.06 · high 4.81 · good 29.10 · good poor
Fri 11:00 1.06 · high 5.04 · good 29.10 · good poor
Fri 12:00 1.06 · high 5.19 · good 29.10 · good poor
Fri 13:00 1.10 · high 5.97 · high 29.10 · good poor
Fri 14:00 1.12 · high 6.13 · high 29.10 · good poor
Fri 15:00 1.16 · high 6.44 · high 29.10 · good poor
Fri 16:00 1.16 · high 7.45 · high 29.10 · good poor
Fri 17:00 1.18 · high 6.87 · high 29.10 · good poor
Fri 18:00 1.18 · high 7.00 · high 29.10 · good poor
Fri 19:00 1.20 · high 7.47 · high 29.10 · good poor
Fri 20:00 1.20 · high 6.98 · high 29.00 · good poor
Fri 21:00 1.22 · high 6.51 · high 29.00 · good poor
Fri 22:00 1.24 · high 6.88 · high 29.00 · good poor
Fri 23:00 1.28 · high 6.86 · high 29.00 · good poor
Sat 00:00 1.30 · high 6.98 · high 29.00 · good poor
Sat 01:00 1.28 · high 6.67 · high 29.10 · good poor
Sat 02:00 1.28 · high 7.09 · high 29.10 · good poor
Sat 03:00 1.26 · high 6.50 · high 29.20 · good poor
Sat 04:00 1.22 · high 5.55 · high 29.30 · good poor
Sat 05:00 1.18 · high 5.02 · good 29.30 · good fair
Sat 06:00 1.14 · high 4.68 · good 29.50 · good fair
Sat 07:00 1.12 · high 4.42 · good 29.50 · good fair
Sat 08:00 1.12 · high 4.56 · good 29.50 · good fair
Sat 09:00 1.10 · high 3.90 · good 29.50 · good fair
Sat 10:00 1.10 · high 3.75 · good 29.40 · good fair
Sat 11:00 1.12 · high 4.00 · good 29.40 · good poor
Sat 12:00 1.12 · high 3.97 · good 29.40 · good poor
Sat 13:00 1.12 · high 3.90 · good 29.30 · good poor
Sat 14:00 1.14 · high 3.89 · good 29.30 · good poor
Sat 15:00 1.14 · high 4.34 · good 29.20 · good poor
Sat 16:00 1.14 · high 4.05 · good 29.10 · good poor
Sat 17:00 1.16 · high 4.25 · good 29.10 · good poor
Sat 18:00 1.16 · high 3.89 · good 29.00 · good poor
Sat 19:00 1.16 · high 3.82 · good 29.00 · good poor
Sat 20:00 1.16 · high 3.86 · good 28.90 · good poor
Sat 21:00 1.16 · high 3.71 · good 28.90 · good poor
Sat 22:00 1.16 · high 4.07 · good 28.90 · good poor
Sat 23:00 1.14 · high 4.43 · good 28.90 · good poor
Sun 00:00 1.14 · high 4.29 · good 28.90 · good fair
Sun 01:00 1.12 · high 4.14 · good 29.00 · good fair
Sun 02:00 1.10 · high 5.06 · good 29.10 · good fair
Sun 03:00 1.08 · high 5.35 · good 29.20 · good fair
Sun 04:00 1.06 · high 5.57 · high 29.30 · good fair
Sun 05:00 1.04 · high 5.44 · high 29.50 · good fair
Sun 06:00 1.02 · high 5.21 · good 29.50 · good fair
Sun 07:00 1.00 · high 5.46 · high 29.60 · good fair
Sun 08:00 1.00 · high 5.43 · high 29.60 · good fair
Sun 09:00 0.98 · high 5.73 · high 29.60 · good fair
Sun 10:00 0.98 · high 5.99 · high 29.60 · good fair
Sun 11:00 0.98 · high 6.34 · high 29.60 · good poor
Sun 12:00 0.98 · high 5.71 · high 29.50 · good poor