SnorkelForecast.com

Jeju Island Snorkel Report Today

South Korea · Updated Sat 05:04 (KST) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Sun 15:44

Jeju Island looks marginal today. The least-bad daylight window is around Mon 15:00, but waves is limiting the forecast.

Score: 5.0/10

Best time: Mon 15:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sun 19:00 (Fair). Peak afternoon wind is about 3.5 m/s.

Email me when it is good

Sunrise

05:37

Sunset

19:42

Water

28.4°C

Max air

29.1°C

Sky

Clear

28% cloud

No safe 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

Sunday

⚠️ fair conditions

Main blocker: Waves

Monday

⚠️ fair conditions

Main blocker: Waves

Tuesday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Mon 06:00 — Fair (0.50) · still limited by waves
  • Mon 02:00 — Fair (0.47) · still limited by waves, tide/current
  • Mon 05:00 — Fair (0.46) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (46 hours)
  • Tide/current (43 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

Next early morning high tide: Sun 16:00

Sun 16:00, Mon 05:00, Mon 17:00

Nearby alternatives in South Korea

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Fri 06:00 – Mon 06:00 (KST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.49 around Sat 09:00; 6 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 0.82m to 0.92m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.49 to 3.38m/s).

Tides range from -0.91m to 1.76m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
poor ❌ Limited
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
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
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
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
Fri 06:00 0.90 · high 3.38 · good 26.70 · good poor
Fri 07:00 0.88 · high 3.12 · good 26.70 · good poor
Fri 08:00 0.88 · high 2.69 · good 26.60 · good poor
Fri 09:00 0.86 · high 2.33 · good 26.50 · good fair
Fri 10:00 0.84 · high 1.98 · good 26.40 · good fair
Fri 11:00 0.84 · high 1.50 · good 26.30 · good poor
Fri 12:00 0.82 · high 1.58 · good 26.30 · good poor
Fri 13:00 0.82 · high 1.49 · good 26.20 · good poor
Fri 14:00 0.84 · high 2.06 · good 26.20 · good poor
Fri 15:00 0.84 · high 2.22 · good 26.20 · good poor
Fri 16:00 0.86 · high 2.36 · good 26.20 · good poor
Fri 17:00 0.88 · high 2.50 · good 26.20 · good poor
Fri 18:00 0.90 · high 2.33 · good 26.20 · good poor
Fri 19:00 0.90 · high 2.20 · good 26.20 · good poor
Fri 20:00 0.92 · high 2.19 · good 26.20 · good poor
Fri 21:00 0.92 · high 1.98 · good 26.10 · good poor
Fri 22:00 0.92 · high 1.78 · good 26.20 · good poor
Fri 23:00 0.92 · high 1.77 · good 26.20 · good poor
Sat 00:00 0.92 · high 1.70 · good 26.20 · good fair
Sat 01:00 0.92 · high 1.97 · good 26.30 · good fair
Sat 02:00 0.90 · high 2.28 · good 26.40 · good poor
Sat 03:00 0.90 · high 2.56 · good 26.60 · good poor
Sat 04:00 0.90 · high 3.28 · good 26.80 · good fair
Sat 05:00 0.90 · high 3.11 · good 26.90 · good fair
Sat 06:00 0.96 · high 3.47 · good 28.30 · good fair
Sat 07:00 0.96 · high 3.12 · good 28.40 · good fair
Sat 08:00 0.94 · high 2.86 · good 28.30 · good fair
Sat 09:00 0.94 · high 2.33 · good 28.30 · good fair
Sat 10:00 0.94 · high 1.78 · good 28.20 · good fair
Sat 11:00 0.92 · high 1.08 · good 28.10 · good poor
Sat 12:00 0.92 · high 0.98 · good 28.10 · good poor
Sat 13:00 0.92 · high 1.17 · good 28.00 · good poor
Sat 14:00 0.94 · high 1.84 · good 27.90 · good poor
Sat 15:00 0.94 · high 2.28 · good 27.90 · good poor
Sat 16:00 0.94 · high 2.36 · good 27.80 · good poor
Sat 17:00 0.94 · high 1.98 · good 27.70 · good poor
Sat 18:00 0.94 · high 1.77 · good 27.60 · good poor
Sat 19:00 0.94 · high 1.49 · good 27.50 · good poor
Sat 20:00 0.94 · high 1.56 · good 27.40 · good poor
Sat 21:00 0.94 · high 1.86 · good 27.30 · good poor
Sat 22:00 0.94 · high 2.05 · good 27.20 · good poor
Sat 23:00 0.92 · high 1.84 · good 27.10 · good poor
Sun 00:00 0.92 · high 2.13 · good 27.10 · good fair
Sun 01:00 0.92 · high 2.30 · good 27.20 · good fair
Sun 02:00 0.90 · high 2.44 · good 27.50 · good fair
Sun 03:00 0.90 · high 2.64 · good 27.70 · good fair
Sun 04:00 0.90 · high 2.77 · good 28.00 · good fair
Sun 05:00 0.88 · high 3.02 · good 28.20 · good fair
Sun 06:00 0.88 · high 3.36 · good 28.40 · good fair
Sun 07:00 0.88 · high 3.45 · good 28.40 · good fair
Sun 08:00 0.86 · high 3.26 · good 28.50 · good fair
Sun 09:00 0.86 · high 3.19 · good 28.40 · good fair
Sun 10:00 0.86 · high 2.66 · good 28.40 · good fair
Sun 11:00 0.84 · high 2.14 · good 28.30 · good poor
Sun 12:00 0.84 · high 1.70 · good 28.30 · good poor
Sun 13:00 0.84 · high 1.84 · good 28.20 · good poor
Sun 14:00 0.84 · high 1.77 · good 28.20 · good poor
Sun 15:00 0.84 · high 1.78 · good 28.10 · good poor
Sun 16:00 0.86 · high 1.92 · good 28.00 · good poor
Sun 17:00 0.88 · high 2.30 · good 28.00 · good poor
Sun 18:00 0.90 · high 2.33 · good 27.90 · good poor
Sun 19:00 0.92 · high 1.92 · good 27.80 · good poor
Sun 20:00 0.96 · high 1.97 · good 27.70 · good poor
Sun 21:00 0.98 · high 1.97 · good 27.60 · good poor
Sun 22:00 1.00 · high 2.06 · good 27.40 · good poor
Sun 23:00 1.02 · high 2.20 · good 27.40 · good poor
Mon 00:00 1.04 · high 2.28 · good 27.30 · good poor
Mon 01:00 1.04 · high 2.24 · good 27.30 · good fair
Mon 02:00 1.04 · high 2.70 · good 27.40 · good fair
Mon 03:00 1.04 · high 3.75 · good 27.50 · good fair
Mon 04:00 1.06 · high 4.24 · good 27.60 · good fair
Mon 05:00 1.06 · high 4.25 · good 27.70 · good fair