SnorkelForecast.com

Koh Kradan Snorkel Report Today

Thailand · Updated Tue 04:15 (+07) · Source: Snapshot

The skinny

Go in the best window Report Wed 09:32

Koh Kradan has a usable snorkeling window around Wed 10:00. The main thing to watch is sea temperature.

Score: 6.1/10

Best time: Wed 10:00

Main risk: Sea Temperature

Best morning signal: Wed 10:00 (Good).

Best afternoon signal: Wed 12:00 (Good). Peak afternoon wind is about 7.0 m/s.

Email me when it is good

Sunrise

06:15

Sunset

18:43

Water

31.1°C

Max air

29.6°C

Sky

Partly cloudy

56% cloud

Good window is available today

Next safe window: Wed 03:00–05:00 (20% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

✅ good conditions

Main blocker: Waves

Thursday

✅ good conditions

Main blocker: Sea temperature

Friday

⚠️ fair conditions

Main blocker: Waves

Best available hours

Next safe window starts at Wed 03:00 until 05:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (49 hours)
  • Waves (46 hours)
  • Tide/current (40 hours)

Jellyfish drift risk

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

Low · 31/100

Low peak drift risk around Wed 13:00.

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: Wed 21:00

Wed 08:00, Wed 21:00, 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

Fri 02:00 – Mon 02:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.43 around Fri 09:00; 10 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 0.5m to 0.98m).

Wind is at or below 5.4m/s in 8/24 sampled hours (range 4.06 to 8.64m/s).

Tides range from -0.09m to 1.42m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
fair ⚠️ Fair
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poor ❌ Limited
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fair ⚠️ Fair
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poor ❌ Limited
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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
Fri 02:00 0.50 · high 4.06 · good 30.90 · out of range fair
Fri 03:00 0.50 · high 4.37 · good 31.00 · out of range fair
Fri 04:00 0.52 · high 4.21 · good 31.20 · out of range fair
Fri 05:00 0.52 · high 4.15 · good 31.30 · out of range fair
Fri 06:00 0.54 · high 4.51 · good 31.30 · out of range fair
Fri 07:00 0.56 · high 4.65 · good 31.30 · out of range fair
Fri 08:00 0.60 · high 4.99 · good 31.30 · out of range fair
Fri 09:00 0.62 · high 4.82 · good 31.30 · out of range fair
Fri 10:00 0.64 · high 5.80 · high 31.20 · out of range fair
Fri 11:00 0.68 · high 6.57 · high 31.20 · out of range fair
Fri 12:00 0.70 · high 7.34 · high 31.10 · out of range poor
Fri 13:00 0.70 · high 7.31 · high 31.10 · out of range poor
Fri 14:00 0.72 · high 7.18 · high 31.00 · out of range poor
Fri 15:00 0.72 · high 7.71 · high 31.00 · out of range poor
Fri 16:00 0.74 · high 7.82 · high 31.00 · out of range poor
Fri 17:00 0.76 · high 7.44 · high 30.90 · out of range poor
Fri 18:00 0.78 · high 6.69 · high 30.90 · out of range poor
Fri 19:00 0.80 · high 6.68 · high 30.80 · out of range poor
Fri 20:00 0.82 · high 7.07 · high 30.80 · out of range poor
Fri 21:00 0.84 · high 7.42 · high 30.80 · out of range poor
Fri 22:00 0.88 · high 7.96 · high 30.70 · out of range poor
Fri 23:00 0.92 · high 8.35 · high 30.70 · out of range poor
Sat 00:00 0.96 · high 8.64 · high 30.70 · out of range poor
Sat 01:00 0.98 · high 8.41 · high 30.70 · out of range poor
Sat 02:00 1.00 · high 8.25 · high 30.80 · out of range poor
Sat 03:00 1.02 · high 8.35 · high 30.80 · out of range poor
Sat 04:00 1.00 · high 8.60 · high 30.90 · out of range poor
Sat 05:00 1.00 · high 8.67 · high 30.90 · out of range poor
Sat 06:00 0.98 · high 8.42 · high 30.90 · out of range poor
Sat 07:00 0.94 · high 8.24 · high 30.90 · out of range poor
Sat 08:00 0.92 · high 8.58 · high 30.90 · out of range poor
Sat 09:00 0.88 · high 8.62 · high 30.90 · out of range poor
Sat 10:00 0.86 · high 8.50 · high 30.90 · out of range poor
Sat 11:00 0.86 · high 7.53 · high 30.80 · out of range poor
Sat 12:00 0.84 · high 6.81 · high 30.80 · out of range poor
Sat 13:00 0.88 · high 6.70 · high 30.80 · out of range poor
Sat 14:00 0.92 · high 8.25 · high 30.80 · out of range poor
Sat 15:00 0.96 · high 8.03 · high 30.80 · out of range poor
Sat 16:00 0.94 · high 7.70 · high 30.80 · out of range poor
Sat 17:00 0.94 · high 7.78 · high 30.80 · out of range poor
Sat 18:00 0.92 · high 8.39 · high 30.80 · out of range poor
Sat 19:00 0.96 · high 7.16 · high 30.80 · out of range poor
Sat 20:00 1.00 · high 8.48 · high 30.70 · out of range poor
Sat 21:00 1.04 · high 7.75 · high 30.70 · out of range poor
Sat 22:00 1.06 · high 7.41 · high 30.70 · out of range poor
Sat 23:00 1.10 · high 6.60 · high 30.70 · out of range poor
Sun 00:00 1.12 · high 6.28 · high 30.70 · out of range poor
Sun 01:00 1.08 · high 4.68 · good 30.70 · out of range poor
Sun 02:00 1.02 · high 5.22 · good 30.70 · out of range poor
Sun 03:00 0.98 · high 5.30 · good 30.70 · out of range poor
Sun 04:00 0.94 · high 4.98 · good 30.80 · out of range fair
Sun 05:00 0.92 · high 5.18 · good 30.80 · out of range fair
Sun 06:00 0.88 · high 5.21 · good 30.80 · out of range poor
Sun 07:00 0.86 · high 4.89 · good 30.80 · out of range fair
Sun 08:00 1.04 · high 9.67 · high 30.60 · out of range poor
Sun 09:00 0.98 · high 9.17 · high 30.60 · out of range poor
Sun 10:00 0.94 · high 8.62 · high 30.60 · out of range poor
Sun 11:00 0.92 · high 7.77 · high 30.60 · out of range poor
Sun 12:00 0.88 · high 7.28 · high 30.60 · out of range poor
Sun 13:00 0.86 · high 6.79 · high 30.60 · out of range poor
Sun 14:00 0.84 · high 6.63 · high 30.60 · out of range poor
Sun 15:00 0.82 · high 6.29 · high 30.60 · out of range poor
Sun 16:00 0.80 · high 6.19 · high 30.60 · out of range poor
Sun 17:00 0.78 · high 5.77 · high 30.60 · out of range poor
Sun 18:00 0.76 · high 5.92 · high 30.60 · out of range poor
Sun 19:00 0.76 · high 6.61 · high 30.60 · out of range poor
Sun 20:00 0.76 · high 5.93 · high 30.60 · out of range poor
Sun 21:00 0.76 · high 5.15 · good 30.50 · out of range poor
Sun 22:00 0.78 · high 6.53 · high 30.50 · out of range poor
Sun 23:00 0.78 · high 5.09 · good 30.50 · out of range poor
Mon 00:00 0.80 · high 4.16 · good 30.50 · out of range poor
Mon 01:00 0.80 · high 3.80 · good 30.50 · out of range poor