SnorkelForecast.com

Okinawa - Blue Cave Snorkel Report Today

Japan · Updated Sat 04:01 (JST) · Source: Snapshot

The skinny

Go in the best window Report Sun 10:02

Okinawa - Blue Cave has a usable snorkeling window around Mon 09:00. The main thing to watch is waves.

Score: 5.8/10

Best time: Mon 09:00

Main risk: Waves

Best morning signal: Sun 11:00 (Fair).

Best afternoon signal: Sun 19:00 (Fair). Peak afternoon wind is about 3.0 m/s.

Email me when it is good

Sunrise

05:47

Sunset

19:22

Water

28.8°C

Max air

31.7°C

Sky

Partly cloudy

63% cloud

Good window is available today

Next safe window: Mon 00:00 (10% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Sunday

⚠️ fair conditions

Main blocker: Waves

Monday

✅ good conditions

Main blocker: Waves

Tuesday

✅ good conditions

Main blocker: Waves

Best available hours

Next safe window starts at Mon 00:00.

Why this verdict

Main blockers across the next 72 hours:

  • Waves (50 hours)
  • Tide/current (34 hours)
  • Darkness (26 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

Sun 14:00, Mon 02:00, Mon 14:00

Nearby alternatives in Japan

Kerama Islands

56 km away

⚠️ Fair

Miyako

314 km away

⚠️ Fair

Ishigaki

438 km away

⚠️ Fair

Advanced forecast data

Viewing historical data

Sat 01:00 – Tue 01:00 (JST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.5 around Sun 09:00; 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 0.62m to 0.78m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.67 to 4.5m/s).

Tides range from 0.23m to 1.86m; 1 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
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
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
good 🌟 Good
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
Sat 01:00 0.76 · high 3.61 · good 27.90 · good fair
Sat 02:00 0.78 · high 3.61 · good 27.90 · good fair
Sat 03:00 0.78 · high 4.21 · good 28.00 · good fair
Sat 04:00 0.78 · high 4.35 · good 28.10 · good fair
Sat 05:00 0.66 · high 4.50 · good 28.70 · good fair
Sat 06:00 0.66 · high 4.43 · good 28.70 · good fair
Sat 07:00 0.66 · high 4.29 · good 28.70 · good fair
Sat 08:00 0.64 · high 4.00 · good 28.70 · good fair
Sat 09:00 0.64 · high 3.55 · good 28.60 · good fair
Sat 10:00 0.64 · high 2.94 · good 28.60 · good fair
Sat 11:00 0.62 · high 3.08 · good 28.50 · good poor
Sat 12:00 0.62 · high 2.98 · good 28.50 · good poor
Sat 13:00 0.62 · high 2.62 · good 28.40 · good poor
Sat 14:00 0.62 · high 2.55 · good 28.40 · good poor
Sat 15:00 0.62 · high 2.68 · good 28.40 · good poor
Sat 16:00 0.64 · high 2.62 · good 28.30 · good poor
Sat 17:00 0.64 · high 2.58 · good 28.30 · good poor
Sat 18:00 0.66 · high 2.19 · good 28.30 · good poor
Sat 19:00 0.68 · high 1.68 · good 28.30 · good poor
Sat 20:00 0.68 · high 1.14 · good 28.30 · good poor
Sat 21:00 0.70 · high 1.03 · good 28.30 · good poor
Sat 22:00 0.70 · high 1.14 · good 28.40 · good poor
Sat 23:00 0.70 · high 0.67 · good 28.40 · good poor
Sun 00:00 0.70 · high 0.96 · good 28.50 · good fair
Sun 01:00 0.70 · high 1.63 · good 28.60 · good fair
Sun 02:00 0.68 · high 1.72 · good 28.80 · good fair
Sun 03:00 0.68 · high 1.36 · good 29.00 · good fair
Sun 04:00 0.68 · high 0.63 · good 29.20 · good fair
Sun 05:00 0.66 · high 0.61 · good 29.40 · good fair
Sun 06:00 0.66 · high 0.86 · good 29.50 · good fair
Sun 07:00 0.64 · high 1.68 · good 29.50 · good fair
Sun 08:00 0.64 · high 2.69 · good 29.50 · good fair
Sun 09:00 0.62 · high 2.97 · good 29.40 · good fair
Sun 10:00 0.60 · high 2.25 · good 29.30 · good fair
Sun 11:00 0.60 · high 1.44 · good 29.20 · good poor
Sun 12:00 0.58 · high 0.97 · good 29.20 · good poor
Sun 13:00 0.58 · high 0.96 · good 29.10 · good poor
Sun 14:00 0.56 · high 1.19 · good 29.00 · good poor
Sun 15:00 0.56 · high 1.48 · good 29.00 · good poor
Sun 16:00 0.56 · high 1.19 · good 28.90 · good poor
Sun 17:00 0.56 · high 1.07 · good 28.90 · good poor
Sun 18:00 0.56 · high 1.03 · good 28.80 · good poor
Sun 19:00 0.56 · high 1.17 · good 28.80 · good poor
Sun 20:00 0.56 · high 1.20 · good 28.80 · good poor
Sun 21:00 0.56 · high 1.13 · good 28.80 · good poor
Sun 22:00 0.56 · high 1.70 · good 28.80 · good poor
Sun 23:00 0.56 · high 1.65 · good 28.80 · good poor
Mon 00:00 0.56 · high 2.26 · good 28.90 · good good
Mon 01:00 0.56 · high 2.33 · good 29.00 · good fair
Mon 02:00 0.56 · high 2.80 · good 29.10 · good fair
Mon 03:00 0.56 · high 2.95 · good 29.30 · good fair
Mon 04:00 0.56 · high 2.34 · good 29.40 · good fair
Mon 05:00 0.56 · high 2.60 · good 29.60 · good fair
Mon 06:00 0.56 · high 2.65 · good 29.60 · good fair
Mon 07:00 0.56 · high 2.55 · good 29.60 · good fair
Mon 08:00 0.58 · high 2.42 · good 29.60 · good fair
Mon 09:00 0.58 · high 2.22 · good 29.50 · good fair
Mon 10:00 0.58 · high 2.02 · good 29.50 · good fair
Mon 11:00 0.58 · high 1.92 · good 29.40 · good poor
Mon 12:00 0.58 · high 2.01 · good 29.30 · good poor
Mon 13:00 0.58 · high 1.88 · good 29.30 · good poor
Mon 14:00 0.56 · high 2.07 · good 29.20 · good poor
Mon 15:00 0.56 · high 2.23 · good 29.20 · good poor
Mon 16:00 0.54 · high 2.43 · good 29.10 · good poor
Mon 17:00 0.54 · high 2.56 · good 29.10 · good poor
Mon 18:00 0.52 · high 2.53 · good 29.10 · good poor
Mon 19:00 0.52 · high 2.38 · good 29.00 · good poor
Mon 20:00 0.52 · high 2.17 · good 29.00 · good poor
Mon 21:00 0.52 · high 1.92 · good 29.00 · good poor
Mon 22:00 0.52 · high 2.25 · good 29.00 · good poor
Mon 23:00 0.50 · high 1.98 · good 29.00 · good poor
Tue 00:00 0.50 · high 2.03 · good 29.10 · good good