SnorkelForecast.com

Ishigaki Snorkel Report Today

Japan · Updated Sat 03:07 (JST) · Source: Snapshot

The skinny

Marginal Report Sat 12:17

Ishigaki looks marginal today. The least-bad daylight window is around Sat 16:00, but waves is limiting the forecast.

Score: 4.8/10

Best time: Sat 16:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sat 16:00 (Fair). Peak afternoon wind is about 3.9 m/s.

Email me when it is good

Sunrise

06:28

Sunset

18:50

Water

29.3°C

Max air

29.8°C

Sky

Partly cloudy

57% 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

Saturday

⚠️ Fair conditions

Main blocker: Waves

Sunday

⚠️ Fair conditions

Main blocker: Waves

Monday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Sat 07:00: Fair (0.48) · still limited by waves, tide/current
  • Sat 09:00: Fair (0.44) · still limited by waves, tide/current
  • Sat 08:00: Fair (0.44) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (71 hours)
  • Tide/current (71 hours)
  • Darkness (42 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

Next early morning high tide: Sat 23:00

Sat 10:00, Sat 23:00, Sun 11:00, Sun 23:00, Mon 11:00, Tue 00:00

Nearby alternatives in Japan

Miyako

127 km away

⚠️ Fair

Kerama Islands

381 km away

⚠️ Fair

Okinawa - Blue Cave

438 km away

✅ Good

Advanced forecast data

Viewing historical data

Sun 03:00 – Wed 03:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.45 around Sun 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 0.98m to 1.28m).

Wind is at or below 5.4m/s in 17/24 sampled hours (range 2.82 to 6.09m/s).

Tides range from 0.26m to 1.84m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
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Fair ⚠️ Fair
Poor ❌ Limited
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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 03:00 1.16 · high 5.13 · good 29.30 · good Fair
Sun 04:00 1.16 · high 5.37 · good 29.30 · good Fair
Sun 05:00 1.18 · high 5.50 · high 29.40 · good Poor
Sun 06:00 1.18 · high 5.49 · high 29.40 · good Poor
Sun 07:00 1.20 · high 5.55 · high 29.40 · good Fair
Sun 08:00 1.24 · high 5.43 · high 29.40 · good Fair
Sun 09:00 1.26 · high 4.94 · good 29.30 · good Fair
Sun 10:00 1.28 · high 4.13 · good 29.30 · good Fair
Sun 11:00 1.10 · high 4.40 · good 29.50 · good Poor
Sun 12:00 1.10 · high 4.61 · good 29.40 · good Poor
Sun 13:00 1.10 · high 4.71 · good 29.40 · good Poor
Sun 14:00 1.12 · high 5.06 · good 29.30 · good Poor
Sun 15:00 1.12 · high 5.55 · high 29.30 · good Poor
Sun 16:00 1.12 · high 4.82 · good 29.30 · good Poor
Sun 17:00 1.12 · high 4.85 · good 29.20 · good Poor
Sun 18:00 1.12 · high 4.07 · good 29.20 · good Poor
Sun 19:00 1.12 · high 3.70 · good 29.10 · good Poor
Sun 20:00 0.98 · high 2.82 · good 29.10 · good Poor
Sun 21:00 0.98 · high 3.78 · good 29.10 · good Poor
Sun 22:00 1.00 · high 3.96 · good 29.00 · good Poor
Sun 23:00 1.02 · high 3.67 · good 29.00 · good Poor
Mon 00:00 1.04 · high 5.68 · high 29.00 · good Poor
Mon 01:00 1.08 · high 5.18 · good 29.00 · good Poor
Mon 02:00 1.12 · high 6.09 · high 29.10 · good Poor
Mon 03:00 1.16 · high 5.41 · high 29.10 · good Poor
Mon 04:00 1.22 · high 5.29 · good 29.20 · good Poor
Mon 05:00 1.28 · high 5.86 · high 29.20 · good Poor
Mon 06:00 1.34 · high 6.16 · high 29.20 · good Poor
Mon 07:00 1.36 · high 5.85 · high 29.20 · good Poor
Mon 08:00 1.36 · high 4.07 · good 29.20 · good Poor
Mon 09:00 1.38 · high 5.40 · good 29.20 · good Poor
Mon 10:00 1.40 · high 4.64 · good 29.20 · good Poor
Mon 11:00 1.40 · high 4.69 · good 29.10 · good Poor
Mon 12:00 1.24 · high 3.21 · good 29.40 · good Poor
Mon 13:00 1.24 · high 2.95 · good 29.40 · good Poor
Mon 14:00 1.24 · high 3.64 · good 29.30 · good Poor
Mon 15:00 1.24 · high 3.63 · good 29.30 · good Poor
Mon 16:00 1.24 · high 3.07 · good 29.30 · good Poor
Mon 17:00 1.24 · high 2.96 · good 29.30 · good Poor
Mon 18:00 1.24 · high 1.93 · good 29.30 · good Poor
Mon 19:00 1.24 · high 2.63 · good 29.30 · good Poor
Mon 20:00 1.26 · high 3.14 · good 29.30 · good Poor
Mon 21:00 1.26 · high 2.85 · good 29.20 · good Poor
Mon 22:00 1.26 · high 3.23 · good 29.20 · good Poor
Mon 23:00 1.26 · high 3.78 · good 29.20 · good Poor
Tue 00:00 1.20 · high 5.11 · good 29.30 · good Fair
Tue 01:00 1.24 · high 5.96 · high 29.30 · good Poor
Tue 02:00 1.26 · high 5.82 · high 29.40 · good Poor
Tue 03:00 1.30 · high 6.59 · high 29.50 · good Poor
Tue 04:00 1.32 · high 6.12 · high 29.60 · good Poor
Tue 05:00 1.36 · high 6.36 · high 29.70 · good Poor
Tue 06:00 1.38 · high 6.33 · high 29.70 · good Poor
Tue 07:00 1.40 · high 7.24 · high 29.70 · good Poor
Tue 08:00 1.40 · high 7.17 · high 29.70 · good Poor
Tue 09:00 1.42 · high 7.85 · high 29.70 · good Poor
Tue 10:00 1.44 · high 7.52 · high 29.70 · good Poor
Tue 11:00 1.90 · high 8.42 · high 29.70 · good Poor
Tue 12:00 1.96 · high 8.12 · high 29.70 · good Poor
Tue 13:00 1.98 · high 8.10 · high 29.70 · good Poor
Tue 14:00 1.98 · high 8.16 · high 29.70 · good Poor
Tue 15:00 2.00 · high 6.62 · high 29.70 · good Poor
Tue 16:00 2.00 · high 7.16 · high 29.60 · good Poor
Tue 17:00 1.98 · high 6.87 · high 29.60 · good Poor
Tue 18:00 1.98 · high 4.81 · good 29.60 · good Poor
Tue 19:00 1.92 · high 5.47 · high 29.60 · good Poor
Tue 20:00 1.58 · high 5.95 · high 29.50 · good Poor
Tue 21:00 1.58 · high 4.63 · good 29.50 · good Poor
Tue 22:00 1.58 · high 4.49 · good 29.50 · good Poor
Tue 23:00 1.58 · high 5.67 · high 29.50 · good Poor
Wed 00:00 1.58 · high 10.27 · high 29.50 · good Poor
Wed 01:00 1.58 · high 9.28 · high 29.50 · good Poor
Wed 02:00 1.58 · high 9.01 · high 29.50 · good Poor