SnorkelForecast.com

Ishigaki Snorkel Report Today

Japan · Updated Sat 04:51 (JST) · Source: Snapshot

The skinny

Marginal Report Sat 14:18

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 3.4 m/s.

Email me when it is good

Sunrise

06:28

Sunset

18:50

Water

29.4°C

Max air

28.9°C

Sky

Partly cloudy

59% 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 (70 hours)
  • Tide/current (70 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

✅ Good

Okinawa - Blue Cave

438 km away

✅ Good

Advanced forecast data

Viewing historical data

Thu 05:00 – Sun 05:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.31 around Thu 15:00; 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 1.8m to 2.8m).

Wind is at or below 5.4m/s in 4/24 sampled hours (range 4.35 to 11.23m/s).

Tides range from 0.18m to 1.86m; 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
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
Fri 06:00 1.88 · high 7.56 · high 28.60 · good Poor
Fri 07:00 1.84 · high 7.69 · high 28.60 · good Poor
Fri 08:00 1.82 · high 7.87 · high 28.60 · good Poor
Fri 09:00 1.78 · high 8.74 · high 28.60 · good Poor
Fri 10:00 1.74 · high 9.21 · high 28.60 · good Poor
Fri 11:00 1.84 · high 9.69 · high 29.30 · good Poor
Fri 12:00 1.88 · high 8.46 · high 29.30 · good Poor
Fri 13:00 1.88 · high 8.83 · high 29.30 · good Poor
Fri 14:00 1.88 · high 9.25 · high 29.30 · good Poor
Fri 15:00 1.88 · high 8.88 · high 29.30 · good Poor
Fri 16:00 1.84 · high 8.52 · high 29.20 · good Poor
Fri 17:00 1.78 · high 7.31 · high 29.20 · good Poor
Fri 18:00 1.74 · high 6.80 · high 29.20 · good Poor
Fri 19:00 1.70 · high 7.25 · high 29.20 · good Poor
Fri 20:00 1.54 · high 6.86 · high 29.10 · good Poor
Fri 21:00 1.52 · high 7.43 · high 29.10 · good Poor
Fri 22:00 1.50 · high 7.41 · high 29.10 · good Poor
Fri 23:00 1.48 · high 7.38 · high 29.10 · good Poor
Sat 00:00 1.46 · high 6.79 · high 29.10 · good Fair
Sat 01:00 1.44 · high 6.95 · high 29.10 · good Fair
Sat 02:00 1.40 · high 6.93 · high 29.20 · good Fair
Sat 03:00 1.38 · high 6.97 · high 29.30 · good Fair
Sat 04:00 1.36 · high 6.72 · high 29.30 · good Fair
Sat 05:00 1.34 · high 6.24 · high 29.40 · good Fair
Sat 06:00 1.32 · high 5.35 · good 29.40 · good Fair
Sat 07:00 1.34 · high 5.39 · good 29.40 · good Fair
Sat 08:00 1.34 · high 5.77 · high 29.40 · good Fair
Sat 09:00 1.36 · high 5.21 · good 29.40 · good Fair
Sat 10:00 1.38 · high 4.79 · good 29.40 · good Fair
Sat 11:00 1.18 · high 6.21 · high 29.30 · good Poor
Sat 12:00 1.18 · high 5.83 · high 29.30 · good Poor
Sat 13:00 1.20 · high 5.92 · high 29.30 · good Poor
Sat 14:00 1.20 · high 5.51 · high 29.30 · good Poor
Sat 15:00 1.22 · high 5.84 · high 29.30 · good Poor
Sat 16:00 1.22 · high 5.87 · high 29.30 · good Poor
Sat 17:00 1.20 · high 5.82 · high 29.20 · good Poor
Sat 18:00 1.20 · high 5.03 · good 29.20 · good Poor
Sat 19:00 1.20 · high 5.06 · good 29.20 · good Poor
Sat 20:00 1.16 · high 4.99 · good 29.20 · good Poor
Sat 21:00 1.16 · high 4.76 · good 29.20 · good Poor
Sat 22:00 1.16 · high 4.95 · good 29.10 · good Poor
Sat 23:00 1.16 · high 5.08 · good 29.10 · good Poor
Sun 00:00 1.16 · high 4.21 · good 29.10 · good Fair
Sun 01:00 1.16 · high 4.43 · good 29.20 · good Fair
Sun 02:00 1.16 · high 4.56 · good 29.20 · good Fair
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