SnorkelForecast.com

Ishigaki Snorkel Report Today

Japan · Updated Mon 02:30 (JST) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Wed 12:33

Ishigaki has a usable snorkeling window around Thu 10:00. The main thing to watch is waves.

Score: 5.6/10

Best time: Thu 10:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Wed 17:00 (Fair). Peak afternoon wind is about 3.5 m/s.

Email me when it is good

Sunrise

06:10

Sunset

19:29

Water

30.6°C

Max air

30.7°C

Sky

Cloudy

100% cloud

Good window is available today

Next safe window: Thu 01:00 (5% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

⚠️ fair conditions

Main blocker: Waves

Thursday

✅ good conditions

Main blocker: Waves

Best available hours

Next safe window starts at Thu 01:00.

Why this verdict

Main blockers across the next 72 hours:

  • Waves (22 hours)
  • Tide/current (22 hours)
  • Darkness (13 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 22:00

Wed 10:00, Wed 22:00

Nearby alternatives in Japan

Miyako

127 km away

✅ Good

Kerama Islands

381 km away

✅ Good

Okinawa - Blue Cave

438 km away

✅ Good

Advanced forecast data

Viewing historical data

Mon 03:00 – Thu 03:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.62 around Mon 19:00; 11 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 0.48m to 0.66m).

Wind is at or below 5.4m/s in 17/24 sampled hours (range 2.49 to 14.3m/s).

Tides range from 0.53m to 1.59m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
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
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Mon 03:00 0.48 · high 13.90 · high 29.70 · good fair
Mon 04:00 0.48 · high 14.30 · high 29.80 · good fair
Mon 05:00 0.48 · high 13.60 · high 29.90 · good fair
Mon 06:00 0.48 · high 12.30 · high 30.00 · good fair
Mon 07:00 0.48 · high 12.50 · high 30.00 · good fair
Mon 08:00 0.48 · high 12.60 · high 30.00 · good fair
Mon 09:00 0.48 · high 13.00 · high 30.00 · good fair
Mon 10:00 0.52 · high 3.15 · good 30.00 · good good
Mon 11:00 0.52 · high 2.80 · good 30.00 · good poor
Mon 12:00 0.52 · high 2.83 · good 30.00 · good poor
Mon 13:00 0.54 · high 3.11 · good 30.00 · good poor
Mon 14:00 0.54 · high 3.06 · good 30.00 · good poor
Mon 15:00 0.56 · high 3.20 · good 30.00 · good poor
Mon 16:00 0.58 · high 3.10 · good 30.00 · good poor
Mon 17:00 0.58 · high 3.06 · good 29.90 · good poor
Mon 18:00 0.60 · high 3.33 · good 29.90 · good poor
Mon 19:00 0.62 · high 3.37 · good 29.90 · good poor
Mon 20:00 0.62 · high 2.87 · good 29.90 · good poor
Mon 21:00 0.64 · high 2.49 · good 29.90 · good poor
Mon 22:00 0.64 · high 2.79 · good 29.90 · good poor
Mon 23:00 0.64 · high 2.80 · good 29.90 · good poor
Tue 00:00 0.64 · high 2.82 · good 29.90 · good good
Tue 01:00 0.64 · high 2.98 · good 29.90 · good fair
Tue 02:00 0.66 · high 3.16 · good 30.00 · good fair
Tue 03:00 0.66 · high 3.08 · good 30.10 · good fair
Tue 04:00 0.66 · high 3.14 · good 30.20 · good fair
Tue 05:00 0.66 · high 3.05 · good 30.20 · good fair
Tue 06:00 0.66 · high 3.00 · good 30.30 · good fair
Tue 07:00 0.66 · high 2.55 · good 30.30 · good fair
Tue 08:00 0.68 · high 2.25 · good 30.30 · good fair
Tue 09:00 0.68 · high 2.23 · good 30.30 · good fair
Tue 10:00 0.68 · high 1.95 · good 30.30 · good fair
Tue 11:00 0.70 · high 1.62 · good 30.30 · good poor
Tue 12:00 0.70 · high 1.32 · good 30.30 · good poor
Tue 13:00 0.70 · high 1.23 · good 30.30 · good poor
Tue 14:00 0.72 · high 1.61 · good 30.20 · good poor
Tue 15:00 0.72 · high 1.56 · good 30.20 · good poor
Tue 16:00 0.74 · high 1.24 · good 30.10 · good poor
Tue 17:00 0.76 · high 1.10 · good 30.10 · good poor
Tue 18:00 0.78 · high 0.50 · good 30.10 · good poor
Tue 19:00 0.80 · high 0.20 · good 30.00 · good poor
Tue 20:00 0.84 · high 0.32 · good 30.00 · good poor
Tue 21:00 0.86 · high 0.87 · good 30.00 · good poor
Tue 22:00 0.90 · high 1.52 · good 29.90 · good poor
Tue 23:00 0.94 · high 1.83 · good 29.90 · good poor
Wed 00:00 0.98 · high 2.27 · good 29.90 · good fair
Wed 01:00 1.04 · high 2.90 · good 30.00 · good fair
Wed 02:00 1.08 · high 3.43 · good 30.00 · good fair
Wed 03:00 1.14 · high 3.61 · good 30.10 · good fair
Wed 04:00 1.22 · high 3.86 · good 30.20 · good fair
Wed 05:00 1.30 · high 4.11 · good 30.30 · good fair
Wed 06:00 1.38 · high 4.03 · good 30.30 · good fair
Wed 07:00 1.44 · high 3.71 · good 30.30 · good fair
Wed 08:00 1.52 · high 3.77 · good 30.30 · good fair
Wed 09:00 1.58 · high 3.96 · good 30.30 · good fair
Wed 10:00 1.68 · high 3.89 · good 30.30 · good fair
Wed 11:00 1.78 · high 3.76 · good 30.20 · good poor
Wed 12:00 1.88 · high 3.61 · good 30.20 · good poor
Wed 13:00 1.94 · high 4.16 · good 30.10 · good poor
Wed 14:00 2.02 · high 4.68 · good 30.10 · good poor
Wed 15:00 2.08 · high 4.25 · good 30.00 · good poor
Wed 16:00 2.14 · high 3.55 · good 30.00 · good poor
Wed 17:00 2.20 · high 3.43 · good 30.00 · good poor
Wed 18:00 2.26 · high 3.87 · good 29.90 · good poor
Wed 19:00 2.32 · high 4.74 · good 29.90 · good poor
Wed 20:00 2.36 · high 5.28 · good 29.90 · good poor
Wed 21:00 2.42 · high 5.50 · high 29.80 · good poor
Wed 22:00 2.48 · high 6.01 · high 29.80 · good poor
Wed 23:00 2.54 · high 6.75 · high 29.80 · good poor
Thu 00:00 2.60 · high 6.77 · high 29.80 · good poor
Thu 01:00 2.66 · high 7.05 · high 29.90 · good fair
Thu 02:00 2.74 · high 7.54 · high 29.90 · good poor