MARINE REPORT / 72 HOURS

Koh Kradan Snorkel Report Today

Thailand · Updated Sat 13:44 (+07) · Source: Snapshot

The skinny

Go in the best window Data updated Sat 13:44 (+07)

Koh Kradan has a usable snorkeling window around Sat 15:00. The main thing to watch is sea temperature.

Right now (forecast)

Good · 7.1/10

Sat 14:00 (+07)

Later today

Excellent · 7.2/10

Sat 17:00 (+07)

Next three days

Excellent · 8.2/10

Sun 13:00 (+07)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 7.2/10

Best time: Sat 15:00

Main risk: Sea Temperature

No useful morning window is showing yet.

Best afternoon signal: Sat 17:00 (Excellent). Peak afternoon wind is about 2.8 m/s.

Email me when it is good

Sunrise

06:09

Sunset

18:07

Water

31.6°C

Max air

28.8°C

Sky

Cloudy

98% cloud

Good model window in the next 72 hours

Next good model window: Sat 15:00–18:00 (49% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Saturday

✅ Excellent conditions

Main blocker: Sea temperature

Sunday

✅ Excellent conditions

Main blocker: Sea temperature

Monday

✅ Excellent conditions

Main blocker: Sea temperature

Best available hours

The next good model window starts at Sat 15:00 and lasts until 18:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (70 hours)
  • Darkness (36 hours)
  • Tide/current (13 hours)

Jellyfish drift risk

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

Low · 31/100

Low peak drift risk around Sat 20:00.

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 01:00

Sun 01:00, Sun 14:00, Mon 02:00, Mon 16:00, Tue 04:00

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

✅ Good

Advanced forecast data

Viewing historical data

Sun 14:00 – Wed 14:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.72 around Mon 12:00; 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.

24/24 sampled hours stay at or below 0.36m (range 0.12m to 0.26m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.58 to 4.5m/s).

Tides range from -0.73m to 1.84m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
Good 🌟 Good
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Sun 14:00 0.12 · good 2.91 · good 31.10 · out of range Good
Sun 15:00 0.12 · good 2.71 · good 31.10 · out of range Good
Sun 16:00 0.12 · good 4.50 · good 31.10 · out of range Fair
Sun 17:00 0.12 · good 3.97 · good 31.00 · out of range Good
Sun 18:00 0.12 · good 1.91 · good 31.10 · out of range Good
Sun 19:00 0.12 · good 2.00 · good 31.00 · out of range Poor
Sun 20:00 0.12 · good 1.24 · good 31.00 · out of range Poor
Sun 21:00 0.14 · good 1.21 · good 31.00 · out of range Poor
Sun 22:00 0.14 · good 0.58 · good 30.90 · out of range Poor
Sun 23:00 0.14 · good 1.98 · good 30.90 · out of range Poor
Mon 00:00 0.16 · good 2.04 · good 30.90 · out of range Poor
Mon 01:00 0.16 · good 2.00 · good 30.90 · out of range Poor
Mon 02:00 0.16 · good 2.42 · good 30.80 · out of range Poor
Mon 03:00 0.18 · good 2.12 · good 30.80 · out of range Poor
Mon 04:00 0.18 · good 1.47 · good 30.80 · out of range Poor
Mon 05:00 0.20 · good 0.74 · good 30.80 · out of range Poor
Mon 06:00 0.20 · good 1.37 · good 30.80 · out of range Poor
Mon 07:00 0.22 · good 2.06 · good 30.80 · out of range Good
Mon 08:00 0.22 · good 3.69 · good 30.80 · out of range Fair
Mon 09:00 0.24 · good 4.13 · good 30.90 · out of range Good
Mon 10:00 0.24 · good 1.13 · good 31.00 · out of range Good
Mon 11:00 0.24 · good 2.05 · good 31.10 · out of range Good
Mon 12:00 0.26 · good 1.23 · good 31.20 · out of range Good
Mon 13:00 0.26 · good 2.22 · good 31.20 · out of range Good
Mon 14:00 0.26 · good 1.74 · good 31.20 · out of range Fair
Mon 15:00 0.28 · good 1.87 · good 31.20 · out of range Fair
Mon 16:00 0.28 · good 2.13 · good 31.20 · out of range Good
Mon 17:00 0.28 · good 2.23 · good 31.10 · out of range Good
Mon 18:00 0.24 · good 0.32 · good 31.10 · out of range Good
Mon 19:00 0.24 · good 1.26 · good 31.00 · out of range Poor
Mon 20:00 0.24 · good 1.15 · good 30.90 · out of range Poor
Mon 21:00 0.22 · good 2.56 · good 30.90 · out of range Poor
Mon 22:00 0.22 · good 2.69 · good 30.90 · out of range Poor
Mon 23:00 0.16 · good 4.49 · good 30.90 · out of range Poor
Tue 00:00 0.16 · good 3.58 · good 30.80 · out of range Poor
Tue 01:00 0.18 · good 3.11 · good 30.80 · out of range Poor
Tue 02:00 0.18 · good 2.48 · good 30.80 · out of range Poor
Tue 03:00 0.16 · good 2.49 · good 30.80 · out of range Poor
Tue 04:00 0.16 · good 2.93 · good 30.80 · out of range Poor
Tue 05:00 0.16 · good 3.06 · good 30.70 · out of range Poor
Tue 06:00 0.14 · good 4.58 · good 30.80 · out of range Poor
Tue 07:00 0.14 · good 4.08 · good 30.80 · out of range Good
Tue 08:00 0.14 · good 4.25 · good 30.80 · out of range Good
Tue 09:00 0.14 · good 3.56 · good 30.90 · out of range Good
Tue 10:00 0.14 · good 1.72 · good 31.00 · out of range Good
Tue 11:00 0.14 · good 0.11 · good 31.10 · out of range Good
Tue 12:00 0.14 · good 0.66 · good 31.20 · out of range Good
Tue 13:00 0.14 · good 1.65 · good 31.30 · out of range Good
Tue 14:00 0.14 · good 1.90 · good 31.30 · out of range Good
Tue 15:00 0.12 · good 1.62 · good 31.30 · out of range Good
Tue 16:00 0.12 · good 1.32 · good 31.20 · out of range Good
Tue 17:00 0.12 · good 0.97 · good 31.20 · out of range Good
Tue 18:00 0.14 · good 0.25 · good 31.30 · out of range Good
Tue 19:00 0.14 · good 2.85 · good 31.20 · out of range Poor
Tue 20:00 0.14 · good 2.80 · good 31.20 · out of range Poor
Tue 21:00 0.14 · good 3.05 · good 31.10 · out of range Poor
Tue 22:00 0.14 · good 2.19 · good 31.10 · out of range Poor
Tue 23:00 0.14 · good 2.82 · good 31.10 · out of range Poor
Wed 00:00 0.14 · good 1.96 · good 31.00 · out of range Poor
Wed 01:00 0.14 · good 1.31 · good 31.00 · out of range Poor
Wed 02:00 0.14 · good 2.57 · good 30.90 · out of range Poor
Wed 03:00 0.14 · good 2.46 · good 30.90 · out of range Poor
Wed 04:00 0.14 · good 2.90 · good 30.90 · out of range Poor
Wed 05:00 0.14 · good 2.28 · good 30.90 · out of range Poor
Wed 06:00 0.14 · good 1.82 · good 30.90 · out of range Poor
Wed 07:00 0.14 · good 2.35 · good 30.90 · out of range Good
Wed 08:00 0.14 · good 2.78 · good 30.90 · out of range Good
Wed 09:00 0.14 · good 2.28 · good 31.00 · out of range Good
Wed 10:00 0.14 · good 2.20 · good 31.20 · out of range Good
Wed 11:00 0.14 · good 1.96 · good 31.30 · out of range Good
Wed 12:00 0.12 · good 1.52 · good 31.40 · out of range Good
Wed 13:00 0.12 · good 2.97 · good 31.40 · out of range Good