SnorkelForecast.com

Ishigaki Snorkel Report Today

Japan · Updated Sat 08:17 (JST) · Source: Snapshot

The skinny

Marginal Report Sat 17:39

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

Score: 4.6/10

Best time: Sat 18:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sat 18:00 (Fair). Peak afternoon wind is about 3.2 m/s.

Email me when it is good

Sunrise

06:28

Sunset

18:50

Water

29.4°C

Max air

28.6°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

Saturday

⚠️ Fair conditions

Main blocker: Waves

Sunday

⚠️ Fair conditions

Main blocker: Waves

Monday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Sat 09:00: Fair (0.46) · still limited by waves, tide/current
  • Tue 07:00: Fair (0.46) · still limited by waves, tide/current
  • Tue 05:00: Fair (0.42) · 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

❌ Poor

Kerama Islands

381 km away

✅ Good

Okinawa - Blue Cave

438 km away

✅ Good

Advanced forecast data

Viewing historical data

Sat 08:00 – Tue 08:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.25 around Sun 09:00; 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 1.86m to 2.22m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 7.19 to 11.22m/s).

Tides range from 0.51m to 1.4m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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Fair ⚠️ Fair
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Poor ❌ Limited
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Fair ⚠️ Fair
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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
Sat 08:00 1.98 · high 10.94 · high 29.80 · good Poor
Sat 09:00 1.96 · high 11.22 · high 29.70 · good Poor
Sat 10:00 1.96 · high 10.88 · high 29.70 · good Poor
Sat 11:00 2.22 · high 9.65 · high 29.70 · good Poor
Sat 12:00 2.16 · high 10.77 · high 29.60 · good Poor
Sat 13:00 2.16 · high 8.86 · high 29.60 · good Poor
Sat 14:00 2.18 · high 10.29 · high 29.60 · good Poor
Sat 15:00 2.18 · high 11.09 · high 29.50 · good Poor
Sat 16:00 2.16 · high 10.65 · high 29.50 · good Poor
Sat 17:00 2.14 · high 9.43 · high 29.50 · good Poor
Sat 18:00 2.12 · high 9.34 · high 29.40 · good Poor
Sat 19:00 1.98 · high 9.38 · high 29.40 · good Poor
Sat 20:00 1.96 · high 10.14 · high 29.40 · good Poor
Sat 21:00 1.96 · high 9.18 · high 29.30 · good Poor
Sat 22:00 1.92 · high 9.33 · high 29.30 · good Poor
Sat 23:00 1.90 · high 7.75 · high 29.30 · good Poor
Sun 00:00 1.86 · high 7.19 · high 29.20 · good Poor
Sun 01:00 1.92 · high 8.15 · high 29.20 · good Poor
Sun 02:00 1.96 · high 7.93 · high 29.20 · good Poor
Sun 03:00 2.02 · high 7.90 · high 29.10 · good Poor
Sun 04:00 2.00 · high 9.27 · high 29.10 · good Poor
Sun 05:00 1.98 · high 9.27 · high 29.10 · good Poor
Sun 06:00 1.96 · high 9.00 · high 29.10 · good Poor
Sun 07:00 1.96 · high 8.66 · high 29.00 · good Poor
Sun 08:00 1.94 · high 9.65 · high 29.00 · good Poor
Sun 09:00 1.94 · high 9.27 · high 29.00 · good Poor
Sun 10:00 1.90 · high 9.19 · high 29.00 · good Poor
Sun 11:00 1.98 · high 8.43 · high 29.20 · good Poor
Sun 12:00 1.94 · high 7.14 · high 29.20 · good Poor
Sun 13:00 1.90 · high 6.86 · high 29.10 · good Poor
Sun 14:00 1.86 · high 7.72 · high 29.10 · good Poor
Sun 15:00 1.82 · high 7.40 · high 29.10 · good Poor
Sun 16:00 1.80 · high 7.38 · high 29.10 · good Poor
Sun 17:00 1.76 · high 5.76 · high 29.00 · good Poor
Sun 18:00 1.74 · high 6.51 · high 29.00 · good Poor
Sun 19:00 1.68 · high 5.56 · high 29.00 · good Poor
Sun 20:00 1.40 · high 5.84 · high 29.00 · good Poor
Sun 21:00 1.36 · high 5.56 · high 28.90 · good Poor
Sun 22:00 1.32 · high 4.24 · good 28.90 · good Poor
Sun 23:00 1.30 · high 5.00 · good 28.90 · good Poor
Mon 00:00 1.26 · high 4.84 · good 28.90 · good Fair
Mon 01:00 1.24 · high 5.73 · high 29.00 · good Fair
Mon 02:00 1.20 · high 4.94 · good 29.00 · good Fair
Mon 03:00 1.18 · high 4.85 · good 29.10 · good Fair
Mon 04:00 1.16 · high 4.99 · good 29.10 · good Poor
Mon 05:00 1.16 · high 5.19 · good 29.20 · good Poor
Mon 06:00 1.14 · high 5.54 · high 29.20 · good Poor
Mon 07:00 1.14 · high 4.82 · good 29.20 · good Poor
Mon 08:00 1.14 · high 4.92 · good 29.30 · good Poor
Mon 09:00 1.14 · high 5.60 · high 29.30 · good Poor
Mon 10:00 1.16 · high 3.07 · good 29.20 · good Poor
Mon 11:00 1.16 · high 3.94 · good 29.20 · good Poor
Mon 12:00 1.16 · high 4.25 · good 29.20 · good Poor
Mon 13:00 1.18 · high 4.43 · good 29.20 · good Poor
Mon 14:00 1.20 · high 4.08 · good 29.20 · good Poor
Mon 15:00 1.22 · high 3.49 · good 29.20 · good Poor
Mon 16:00 1.28 · high 2.99 · good 29.20 · good Poor
Mon 17:00 1.32 · high 2.83 · good 29.20 · good Poor
Mon 18:00 1.38 · high 4.46 · good 29.20 · good Poor
Mon 19:00 1.44 · high 3.14 · good 29.20 · good Poor
Mon 20:00 1.46 · high 2.30 · good 29.20 · good Poor
Mon 21:00 1.50 · high 1.72 · good 29.10 · good Poor
Mon 22:00 1.54 · high 2.20 · good 29.10 · good Poor
Mon 23:00 1.58 · high 3.27 · good 29.10 · good Poor
Tue 00:00 1.62 · high 4.16 · good 29.20 · good Fair
Tue 01:00 1.64 · high 1.91 · good 29.20 · good Fair
Tue 02:00 1.68 · high 0.80 · good 29.30 · good Fair
Tue 03:00 1.70 · high 2.46 · good 29.50 · good Fair
Tue 04:00 1.72 · high 1.84 · good 29.60 · good Fair
Tue 05:00 1.72 · high 0.55 · good 29.70 · good Fair
Tue 06:00 1.74 · high 2.10 · good 29.70 · good Fair
Tue 07:00 1.74 · high 2.31 · good 29.70 · good Fair