MARINE REPORT / 72 HOURS

Ishigaki Snorkel Report Today

Japan · Updated Tue 15:14 (JST) · Source: Snapshot

The skinny

Poor Data updated Tue 15:14 (JST)

Ishigaki has no good model window later today. Check the three-day outlook and official beach advisories.

Right now (forecast)

Poor · 3.4/10

Tue 18:00 (JST)

Later today

No fresh data for this period.

Next three days

Fair · 4.5/10

Fri 09:00 (JST)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 0.0/10

Best time: -

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:46

Sunset

18:07

Water

27.3°C

Max air

24.7°C

Sky

Clear

13% 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

Tuesday

❌ Poor conditions

Main blocker: Waves

Wednesday

⚠️ Fair conditions

Main blocker: Waves

Thursday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Fri 09:00: Fair (0.45) · still limited by waves, tide/current
  • Thu 10:00: Fair (0.45) · still limited by waves, tide/current
  • Fri 14:00: Fair (0.44) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (68 hours)
  • Tide/current (65 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: Wed 08:00

Tue 19:00, Wed 08:00, Wed 19:00, Thu 09:00, Thu 20:00, Fri 10:00

Nearby alternatives in Japan

Miyako

127 km away

❌ Poor

Kerama Islands

381 km away

❌ Poor

Okinawa - Blue Cave

438 km away

❌ Poor

Advanced forecast data

Viewing historical data

Mon 18:00 – Thu 18:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.48 around Mon 18:00; 9 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 0.78m to 1.16m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 3.31 to 5.28m/s).

Tides range from 0.78m to 1.51m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Mon 18:00 0.84 · high 3.90 · good 28.90 · good Fair
Mon 19:00 0.86 · high 3.88 · good 28.90 · good Poor
Mon 20:00 0.78 · high 4.35 · good 28.80 · good Poor
Mon 21:00 0.80 · high 4.52 · good 28.80 · good Poor
Mon 22:00 0.82 · high 4.66 · good 28.80 · good Poor
Mon 23:00 0.84 · high 4.75 · good 28.70 · good Poor
Tue 00:00 0.86 · high 5.09 · good 28.70 · good Poor
Tue 01:00 0.86 · high 5.28 · good 28.70 · good Poor
Tue 02:00 0.88 · high 4.92 · good 28.60 · good Poor
Tue 03:00 0.88 · high 4.11 · good 28.60 · good Poor
Tue 04:00 0.90 · high 3.86 · good 28.60 · good Poor
Tue 05:00 0.90 · high 3.50 · good 28.60 · good Poor
Tue 06:00 0.92 · high 3.31 · good 28.50 · good Poor
Tue 07:00 0.92 · high 3.32 · good 28.50 · good Poor
Tue 08:00 0.92 · high 3.54 · good 28.50 · good Poor
Tue 09:00 0.92 · high 4.09 · good 28.50 · good Fair
Tue 10:00 0.94 · high 4.01 · good 28.60 · good Fair
Tue 11:00 0.94 · high 3.83 · good 28.60 · good Fair
Tue 12:00 0.96 · high 3.69 · good 28.70 · good Fair
Tue 13:00 0.98 · high 3.47 · good 28.80 · good Fair
Tue 14:00 1.00 · high 3.91 · good 28.80 · good Fair
Tue 15:00 1.10 · high 4.43 · good 28.90 · good Fair
Tue 16:00 1.12 · high 4.74 · good 28.90 · good Poor
Tue 17:00 1.16 · high 4.99 · good 28.90 · good Fair
Tue 18:00 1.18 · high 4.79 · good 28.90 · good Fair
Tue 19:00 1.22 · high 4.61 · good 28.80 · good Poor
Tue 20:00 1.26 · high 4.28 · good 28.80 · good Poor
Tue 21:00 1.30 · high 4.32 · good 28.80 · good Poor
Tue 22:00 1.32 · high 4.35 · good 28.70 · good Poor
Tue 23:00 1.36 · high 4.38 · good 28.70 · good Poor
Wed 00:00 1.38 · high 3.95 · good 28.70 · good Poor
Wed 01:00 1.42 · high 3.45 · good 28.70 · good Poor
Wed 02:00 1.44 · high 3.56 · good 28.60 · good Poor
Wed 03:00 1.48 · high 3.68 · good 28.60 · good Poor
Wed 04:00 1.52 · high 4.19 · good 28.60 · good Poor
Wed 05:00 1.58 · high 4.57 · good 28.60 · good Poor
Wed 06:00 1.62 · high 4.86 · good 28.60 · good Poor
Wed 07:00 1.70 · high 5.21 · good 28.60 · good Poor
Wed 08:00 1.76 · high 5.79 · high 28.60 · good Poor
Wed 09:00 1.82 · high 6.31 · high 28.60 · good Fair
Wed 10:00 1.92 · high 6.98 · high 28.60 · good Poor
Wed 11:00 2.00 · high 7.61 · high 28.60 · good Poor
Wed 12:00 2.10 · high 8.33 · high 28.70 · good Poor
Wed 13:00 2.22 · high 9.06 · high 28.70 · good Poor
Wed 14:00 2.34 · high 9.42 · high 28.70 · good Poor
Wed 15:00 2.46 · high 9.68 · high 28.70 · good Poor
Wed 16:00 2.58 · high 10.39 · high 28.70 · good Poor
Wed 17:00 2.70 · high 11.13 · high 28.70 · good Poor
Wed 18:00 2.82 · high 11.15 · high 28.60 · good Poor
Wed 19:00 2.94 · high 11.41 · high 28.60 · good Poor
Wed 20:00 3.12 · high 12.50 · high 28.60 · good Poor
Wed 21:00 3.22 · high 12.45 · high 28.60 · good Poor
Wed 22:00 3.32 · high 13.33 · high 28.50 · good Poor
Wed 23:00 3.44 · high 13.62 · high 28.50 · good Poor
Thu 00:00 3.54 · high 13.84 · high 28.40 · good Poor
Thu 01:00 3.66 · high 12.86 · high 28.40 · good Poor
Thu 02:00 3.76 · high 13.06 · high 28.40 · good Poor
Thu 03:00 3.88 · high 12.58 · high 28.30 · good Poor
Thu 04:00 3.96 · high 13.38 · high 28.30 · good Poor
Thu 05:00 4.02 · high 13.75 · high 28.30 · good Poor
Thu 06:00 4.16 · high 12.10 · high 28.20 · good Poor
Thu 07:00 4.22 · high 13.25 · high 28.20 · good Poor
Thu 08:00 4.30 · high 14.56 · high 28.20 · good Poor
Thu 09:00 4.36 · high 14.88 · high 28.20 · good Poor
Thu 10:00 4.36 · high 14.56 · high 28.20 · good Poor
Thu 11:00 4.38 · high 13.79 · high 28.20 · good Poor
Thu 12:00 4.38 · high 15.21 · high 28.20 · good Poor
Thu 13:00 4.40 · high 14.91 · high 28.20 · good Poor
Thu 14:00 4.42 · high 14.91 · high 28.30 · good Poor
Thu 15:00 4.44 · high 15.26 · high 28.30 · good Poor
Thu 16:00 4.48 · high 15.38 · high 28.30 · good Poor
Thu 17:00 4.52 · high 15.80 · high 28.30 · good Poor