SnorkelForecast.com

Koh Kradan Snorkel Report Today

Thailand · Updated Tue 04:15 (+07) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Thu 06:36

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

Score: 6.1/10

Best time: Thu 07:00

Main risk: Sea Temperature

Best morning signal: Thu 08:00 (Good).

Best afternoon signal: Thu 18:00 (Good). Peak afternoon wind is about 5.1 m/s.

Email me when it is good

Sunrise

06:15

Sunset

18:43

Water

30.9°C

Max air

29.2°C

Sky

Partly cloudy

65% cloud

Good window is available today

Next safe window: Thu 00:00–04:00 (25% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Thursday

✅ good conditions

Main blocker: Sea temperature

Friday

⚠️ fair conditions

Main blocker: Waves

Best available hours

Next safe window starts at Thu 00:00 until 04:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (28 hours)
  • Waves (25 hours)
  • Tide/current (22 hours)

Jellyfish drift risk

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

Low · 31/100

Low peak drift risk around Thu 14:00.

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: Thu 23:00

Thu 23:00

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

⚠️ Fair

Advanced forecast data

Viewing historical data

Thu 23:00 – Sun 23:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.16 around Fri 10:00; 0 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 0.4m to 0.5m).

Wind is at or below 5.4m/s in 1/24 sampled hours (range 5.3 to 16.3m/s).

Tides range from -0.01m to 1.31m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
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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
Thu 23:00 0.50 · high 9.20 · high 30.90 · out of range poor
Fri 00:00 0.48 · high 8.30 · high 30.90 · out of range poor
Fri 01:00 0.48 · high 9.50 · high 30.90 · out of range poor
Fri 02:00 0.46 · high 7.10 · high 31.00 · out of range poor
Fri 03:00 0.46 · high 5.30 · good 31.00 · out of range poor
Fri 04:00 0.44 · high 12.30 · high 31.10 · out of range poor
Fri 05:00 0.44 · high 7.60 · high 31.10 · out of range poor
Fri 06:00 0.42 · high 14.30 · high 31.20 · out of range poor
Fri 07:00 0.42 · high 10.10 · high 31.20 · out of range poor
Fri 08:00 0.42 · high 16.30 · high 31.20 · out of range poor
Fri 09:00 0.42 · high 8.50 · high 31.20 · out of range poor
Fri 10:00 0.42 · high 6.70 · high 31.20 · out of range poor
Fri 11:00 0.42 · high 8.30 · high 31.10 · out of range poor
Fri 12:00 0.42 · high 11.40 · high 31.10 · out of range poor
Fri 13:00 0.42 · high 11.40 · high 31.10 · out of range poor
Fri 14:00 0.42 · high 9.00 · high 31.10 · out of range poor
Fri 15:00 0.42 · high 6.90 · high 31.10 · out of range poor
Fri 16:00 0.42 · high 6.40 · high 31.00 · out of range poor
Fri 17:00 0.42 · high 10.70 · high 31.00 · out of range poor
Fri 18:00 0.42 · high 13.00 · high 31.00 · out of range poor
Fri 19:00 0.42 · high 14.20 · high 31.00 · out of range poor
Fri 20:00 0.40 · high 13.00 · high 30.90 · out of range poor
Fri 21:00 0.40 · high 12.90 · high 30.90 · out of range poor
Fri 22:00 0.40 · high 9.80 · high 30.90 · out of range poor
Fri 23:00 0.40 · high 6.50 · high 30.90 · out of range poor
Sat 00:00 0.40 · high 6.30 · high 30.90 · out of range poor
Sat 01:00 0.40 · high 5.60 · high 31.00 · out of range poor
Sat 02:00 0.40 · high 3.00 · good 31.00 · out of range poor
Sat 03:00 0.40 · high 0.80 · good 31.10 · out of range poor
Sat 04:00 0.40 · high 3.90 · good 31.20 · out of range poor
Sat 05:00 0.40 · high 9.00 · high 31.30 · out of range poor
Sat 06:00 0.40 · high 11.80 · high 31.30 · out of range poor
Sat 07:00 0.40 · high 15.00 · high 31.30 · out of range poor
Sat 08:00 0.38 · high 24.20 · high 31.30 · out of range poor
Sat 09:00 0.38 · high 20.90 · high 31.30 · out of range poor
Sat 10:00 0.38 · high 19.20 · high 31.20 · out of range poor
Sat 11:00 0.38 · high 21.20 · high 31.20 · out of range poor
Sat 12:00 0.38 · high 19.90 · high 31.10 · out of range poor
Sat 13:00 0.42 · high 10.70 · high 31.10 · out of range poor
Sat 14:00 0.40 · high 12.60 · high 31.00 · out of range poor
Sat 15:00 0.40 · high 15.30 · high 31.00 · out of range poor
Sat 16:00 0.42 · high 16.50 · high 31.00 · out of range poor
Sat 17:00 0.42 · high 15.40 · high 30.90 · out of range poor
Sat 18:00 0.44 · high 16.30 · high 30.90 · out of range poor
Sat 19:00 0.44 · high 15.50 · high 30.90 · out of range poor
Sat 20:00 0.46 · high 10.70 · high 30.90 · out of range poor
Sat 21:00 0.46 · high 15.50 · high 30.90 · out of range poor
Sat 22:00 0.44 · high 14.80 · high 30.80 · out of range poor
Sat 23:00 0.44 · high 9.90 · high 30.80 · out of range poor
Sun 00:00 0.42 · high 11.50 · high 30.80 · out of range poor
Sun 01:00 0.42 · high 10.70 · high 30.80 · out of range poor
Sun 02:00 0.42 · high 5.20 · good 30.90 · out of range fair
Sun 03:00 0.42 · high 5.10 · good 30.90 · out of range poor
Sun 04:00 0.42 · high 21.70 · high 31.00 · out of range poor
Sun 05:00 0.42 · high 16.70 · high 31.00 · out of range poor
Sun 06:00 0.42 · high 18.90 · high 31.00 · out of range poor
Sun 07:00 0.44 · high 17.60 · high 31.00 · out of range poor
Sun 08:00 0.46 · high 26.40 · high 31.00 · out of range poor
Sun 09:00 0.48 · high 20.50 · high 31.00 · out of range poor
Sun 10:00 0.50 · high 19.90 · high 31.00 · out of range poor
Sun 11:00 0.50 · high 19.20 · high 30.90 · out of range poor
Sun 12:00 0.52 · high 19.30 · high 30.90 · out of range poor
Sun 13:00 0.52 · high 17.50 · high 30.90 · out of range poor
Sun 14:00 0.52 · high 18.00 · high 30.90 · out of range poor
Sun 15:00 0.52 · high 16.00 · high 30.90 · out of range poor
Sun 16:00 0.54 · high 19.50 · high 30.90 · out of range poor
Sun 17:00 0.56 · high 33.90 · high 30.80 · out of range poor
Sun 18:00 0.58 · high 23.70 · high 30.80 · out of range poor
Sun 19:00 0.58 · high 20.00 · high 30.80 · out of range poor
Sun 20:00 0.60 · high 16.70 · high 30.80 · out of range poor
Sun 21:00 0.60 · high 17.50 · high 30.80 · out of range poor
Sun 22:00 0.64 · high 18.90 · high 30.80 · out of range poor