SnorkelForecast.com

Ishigaki Snorkel Report Today

Japan · Updated Sat 06:34 (JST) · Source: Snapshot

The skinny

Marginal Report Sat 15:50

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

Score: 4.9/10

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 3.2 m/s.

Email me when it is good

Sunrise

06:28

Sunset

18:50

Water

29.4°C

Max air

29.4°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 07:00: Fair (0.49) · still limited by waves, tide/current
  • Sat 08:00: Fair (0.47) · still limited by waves, tide/current
  • Sat 09:00: Fair (0.46) · 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 peak drift risk around Sat 17:00.

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: 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

✅ Good

Okinawa - Blue Cave

438 km away

✅ Good

Advanced forecast data

Viewing historical data

Tue 06:00 – Fri 06:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.46 around Tue 15:00; 5 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 1.64m to 1.88m).

Wind is at or below 5.4m/s in 11/24 sampled hours (range 0.83 to 13.64m/s).

Tides range from 0.26m to 1.68m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
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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
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
Tue 08:00 1.74 · high 2.62 · good 29.70 · good Fair
Tue 09:00 1.74 · high 3.18 · good 29.70 · good Fair
Tue 10:00 1.74 · high 3.26 · good 29.70 · good Fair
Tue 11:00 1.82 · high 0.83 · good 29.20 · good Poor
Tue 12:00 1.82 · high 1.32 · good 29.20 · good Poor
Tue 13:00 1.82 · high 2.06 · good 29.20 · good Poor
Tue 14:00 1.84 · high 3.52 · good 29.10 · good Poor
Tue 15:00 1.84 · high 4.11 · good 29.10 · good Poor
Tue 16:00 1.82 · high 5.03 · good 29.10 · good Poor
Tue 17:00 1.82 · high 6.20 · high 29.10 · good Poor
Tue 18:00 1.80 · high 6.56 · high 29.10 · good Poor
Tue 19:00 1.80 · high 7.52 · high 29.10 · good Poor
Tue 20:00 1.66 · high 8.59 · high 29.00 · good Poor
Tue 21:00 1.64 · high 8.82 · high 29.00 · good Poor
Tue 22:00 1.66 · high 9.09 · high 29.00 · good Poor
Tue 23:00 1.70 · high 10.07 · high 29.00 · good Poor
Wed 00:00 1.72 · high 10.46 · high 29.00 · good Poor
Wed 01:00 1.78 · high 11.04 · high 29.10 · good Poor
Wed 02:00 1.82 · high 11.70 · high 29.10 · good Poor
Wed 03:00 1.88 · high 12.54 · high 29.20 · good Poor
Wed 04:00 1.88 · high 12.61 · high 29.30 · good Poor
Wed 05:00 1.88 · high 13.64 · high 29.30 · good Poor
Wed 06:00 1.88 · high 12.99 · high 29.40 · good Poor
Wed 07:00 1.90 · high 11.93 · high 29.40 · good Poor
Wed 08:00 1.92 · high 11.53 · high 29.40 · good Poor
Wed 09:00 1.94 · high 11.15 · high 29.40 · good Poor
Wed 10:00 1.96 · high 12.49 · high 29.30 · good Poor
Wed 11:00 1.94 · high 8.87 · high 29.10 · good Poor
Wed 12:00 1.96 · high 9.56 · high 29.00 · good Poor
Wed 13:00 2.00 · high 9.17 · high 29.00 · good Poor
Wed 14:00 2.02 · high 9.30 · high 29.00 · good Poor
Wed 15:00 2.06 · high 9.81 · high 28.90 · good Poor
Wed 16:00 2.22 · high 8.77 · high 28.90 · good Poor
Wed 17:00 2.36 · high 9.09 · high 28.90 · good Poor
Wed 18:00 2.52 · high 10.60 · high 28.80 · good Poor
Wed 19:00 2.52 · high 10.52 · high 28.80 · good Poor
Wed 20:00 2.00 · high 9.88 · high 28.70 · good Poor
Wed 21:00 2.04 · high 9.77 · high 28.70 · good Poor
Wed 22:00 2.08 · high 9.62 · high 28.60 · good Poor
Wed 23:00 2.12 · high 10.03 · high 28.60 · good Poor
Thu 00:00 2.16 · high 10.69 · high 28.60 · good Poor
Thu 01:00 2.30 · high 10.57 · high 28.50 · good Poor
Thu 02:00 2.44 · high 11.01 · high 28.50 · good Poor
Thu 03:00 2.58 · high 10.15 · high 28.50 · good Poor
Thu 04:00 2.64 · high 10.87 · high 28.50 · good Poor
Thu 05:00 2.70 · high 11.23 · high 28.50 · good Poor
Thu 06:00 2.76 · high 7.70 · high 28.50 · good Poor
Thu 07:00 2.78 · high 6.77 · high 28.50 · good Poor
Thu 08:00 2.78 · high 5.84 · high 28.50 · good Poor
Thu 09:00 2.80 · high 5.28 · good 28.40 · good Poor
Thu 10:00 2.76 · high 5.90 · high 28.40 · good Poor
Thu 11:00 1.94 · high 4.56 · good 28.70 · good Poor
Thu 12:00 2.00 · high 4.35 · good 28.60 · good Poor
Thu 13:00 2.04 · high 5.26 · good 28.60 · good Poor
Thu 14:00 2.10 · high 8.13 · high 28.60 · good Poor
Thu 15:00 2.14 · high 8.00 · high 28.50 · good Poor
Thu 16:00 2.20 · high 8.10 · high 28.50 · good Poor
Thu 17:00 2.26 · high 9.06 · high 28.50 · good Poor
Thu 18:00 2.32 · high 10.08 · high 28.50 · good Poor
Thu 19:00 1.80 · high 7.90 · high 28.50 · good Poor
Thu 20:00 1.82 · high 7.77 · high 28.40 · good Poor
Thu 21:00 1.84 · high 8.71 · high 28.40 · good Poor
Thu 22:00 1.86 · high 8.91 · high 28.40 · good Poor
Thu 23:00 1.88 · high 8.49 · high 28.40 · good Poor
Fri 00:00 1.90 · high 8.44 · high 28.40 · good Poor
Fri 01:00 1.92 · high 8.76 · high 28.40 · good Poor
Fri 02:00 1.92 · high 7.98 · high 28.50 · good Poor
Fri 03:00 1.94 · high 8.26 · high 28.50 · good Poor
Fri 04:00 1.92 · high 7.28 · high 28.60 · good Poor
Fri 05:00 1.90 · high 7.02 · high 28.60 · good Poor