SnorkelForecast.com

Koh Kradan Snorkel Report Today

Thailand · Updated Sat 05:03 (+07) · Source: Snapshot

The skinny

Go in the best window Report Sun 03:51

Koh Kradan has a usable snorkeling window around Sun 07:00. The main thing to watch is sea temperature.

Score: 6.3/10

Best time: Sun 07:00

Main risk: Sea Temperature

Best morning signal: Sun 07:00 (Good).

Best afternoon signal: Sun 14:00 (Fair). Peak afternoon wind is about 6.3 m/s.

Email me when it is good

Sunrise

06:14

Sunset

18:44

Water

30.9°C

Max air

29.8°C

Sky

Cloudy

85% cloud

Good window is available today

Next safe window: Sun 00:00–01:00 (32% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Sunday

✅ good conditions

Main blocker: Sea temperature

Monday

✅ good conditions

Main blocker: Sea temperature

Tuesday

✅ good conditions

Main blocker: Sea temperature

Best available hours

Next safe window starts at Sun 00:00 until 01:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (56 hours)
  • Tide/current (43 hours)
  • Darkness (27 hours)

Jellyfish drift risk

Drift estimate from wind, swell, current and warm water.

Low · 34/100

Low peak drift risk around Sun 11:00.

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 19:00

Sun 06:00, Sun 19:00, Mon 07:00

Nearby alternatives in Thailand

Koh Phi Phi

74 km away

✅ Good

Koh Lipe

87 km away

✅ Good

Railay

94 km away

✅ Good

Similan Islands

234 km away

❌ Poor

Advanced forecast data

Viewing live forecast

Sat 20:00 – Tue 20:00 (+07)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.63 around Sun 07:00; 12 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.

5/24 sampled hours stay at or below 0.36m (range 0.36m to 0.44m).

Wind is at or below 5.4m/s in 18/24 sampled hours (range 0.87 to 6.3m/s).

Tides range from -0.41m to 1.63m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
good 🌟 Good
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
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
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
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
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 21:00 0.40 · high 2.46 · good 30.90 · out of range poor
Sat 22:00 0.40 · high 0.87 · good 30.90 · out of range poor
Sat 23:00 0.38 · high 2.07 · good 30.90 · out of range poor
Sun 00:00 0.38 · high 0.98 · good 30.90 · out of range good
Sun 01:00 0.38 · high 1.17 · good 31.00 · out of range good
Sun 02:00 0.36 · good 2.25 · good 31.10 · out of range fair
Sun 03:00 0.36 · good 2.93 · good 31.20 · out of range fair
Sun 04:00 0.36 · good 2.97 · good 31.30 · out of range fair
Sun 05:00 0.36 · good 3.56 · good 31.30 · out of range fair
Sun 06:00 0.36 · good 4.07 · good 31.40 · out of range fair
Sun 07:00 0.38 · high 4.84 · good 31.40 · out of range fair
Sun 08:00 0.38 · high 5.10 · good 31.40 · out of range fair
Sun 09:00 0.40 · high 5.52 · high 31.30 · out of range fair
Sun 10:00 0.42 · high 5.64 · high 31.30 · out of range fair
Sun 11:00 0.42 · high 6.30 · high 31.20 · out of range fair
Sun 12:00 0.44 · high 6.07 · high 31.20 · out of range poor
Sun 13:00 0.44 · high 6.16 · high 31.10 · out of range poor
Sun 14:00 0.42 · high 5.70 · high 31.10 · out of range poor
Sun 15:00 0.42 · high 5.16 · good 31.10 · out of range poor
Sun 16:00 0.42 · high 5.02 · good 31.00 · out of range poor
Sun 17:00 0.40 · high 5.05 · good 31.00 · out of range poor
Sun 18:00 0.40 · high 4.78 · good 31.00 · out of range poor
Sun 19:00 0.40 · high 4.35 · good 31.00 · out of range poor
Sun 20:00 0.38 · high 3.81 · good 30.90 · out of range poor
Sun 21:00 0.38 · high 3.97 · good 30.90 · out of range poor
Sun 22:00 0.36 · good 3.69 · good 30.90 · out of range poor
Sun 23:00 0.36 · good 3.52 · good 30.90 · out of range poor
Mon 00:00 0.34 · good 3.44 · good 30.90 · out of range good
Mon 01:00 0.34 · good 3.16 · good 31.00 · out of range good
Mon 02:00 0.32 · good 2.73 · good 31.00 · out of range good
Mon 03:00 0.32 · good 2.75 · good 31.10 · out of range good
Mon 04:00 0.32 · good 3.02 · good 31.20 · out of range fair
Mon 05:00 0.30 · good 3.13 · good 31.20 · out of range good
Mon 06:00 0.30 · good 3.19 · good 31.30 · out of range good
Mon 07:00 0.30 · good 3.09 · good 31.30 · out of range good
Mon 08:00 0.30 · good 3.62 · good 31.30 · out of range good
Mon 09:00 0.30 · good 4.00 · good 31.30 · out of range good
Mon 10:00 0.30 · good 4.20 · good 31.20 · out of range good
Mon 11:00 0.30 · good 4.14 · good 31.20 · out of range good
Mon 12:00 0.30 · good 3.93 · good 31.20 · out of range poor
Mon 13:00 0.30 · good 4.27 · good 31.20 · out of range poor
Mon 14:00 0.32 · good 3.78 · good 31.10 · out of range poor
Mon 15:00 0.32 · good 3.83 · good 31.10 · out of range poor
Mon 16:00 0.32 · good 4.00 · good 31.10 · out of range poor
Mon 17:00 0.32 · good 3.70 · good 31.00 · out of range poor
Mon 18:00 0.32 · good 3.53 · good 31.00 · out of range poor
Mon 19:00 0.34 · good 3.51 · good 31.00 · out of range poor
Mon 20:00 0.34 · good 2.53 · good 31.00 · out of range poor
Mon 21:00 0.36 · good 3.58 · good 31.00 · out of range poor
Mon 22:00 0.36 · good 2.21 · good 31.00 · out of range poor
Mon 23:00 0.36 · good 3.49 · good 31.00 · out of range poor
Tue 00:00 0.36 · good 2.06 · good 31.00 · out of range good
Tue 01:00 0.34 · good 2.56 · good 31.00 · out of range good
Tue 02:00 0.34 · good 3.22 · good 31.10 · out of range good
Tue 03:00 0.32 · good 3.18 · good 31.20 · out of range good
Tue 04:00 0.32 · good 5.21 · good 31.30 · out of range good