SnorkelForecast.com

Koh Kradan Snorkel Report Today

Thailand · Updated Tue 19:58 (+07) · Source: Snapshot

The skinny

Marginal Report Wed 06:23

Koh Kradan looks marginal today. The least-bad daylight window is around Thu 09:00, but waves is limiting the forecast.

Score: 5.0/10

Best time: Thu 09:00

Main risk: Waves

Best morning signal: Wed 07:00 (Fair).

Best afternoon signal: Wed 13:00 (Fair). Peak afternoon wind is about 5.8 m/s.

Email me when it is good

Sunrise

06:15

Sunset

18:30

Water

30.9°C

Max air

28.9°C

Sky

Partly cloudy

55% cloud

No good model 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

Wednesday

⚠️ Fair conditions

Main blocker: Waves

Thursday

⚠️ Fair conditions

Main blocker: Waves

Friday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Thu 02:00: Fair (0.52) · still limited by waves, sea temperature
  • Wed 00:00: Fair (0.50) · still limited by waves, sea temperature
  • Wed 04:00: Fair (0.50) · still limited by waves, sea temperature

Why this verdict

Main blockers across the next 72 hours:

  • Waves (67 hours)
  • Sea temperature (67 hours)
  • Tide/current (51 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Wed 21:00.

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 18:00

Wed 06:00, Wed 18:00, Thu 06:00, Thu 19:00, Fri 07:00

Nearby alternatives in Thailand

Koh Phi Phi

74 km away

⚠️ Fair

Koh Lipe

87 km away

⚠️ Fair

Railay

94 km away

✅ Good

Similan Islands

234 km away

❌ Poor

Advanced forecast data

Viewing current forecast

Tue 23:00 – Fri 23:00 (+07)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.5 around Wed 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.

0/24 sampled hours stay at or below 0.36m (range 0.42m to 0.5m).

Wind is at or below 5.4m/s in 18/24 sampled hours (range 3.7 to 7.9m/s).

Tides range from -0.47m to 1.55m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview
Fair ⚠️ Fair
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
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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
Poor ❌ Limited
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
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
Wed 00:00 0.42 · high 5.09 · good 30.90 · out of range Fair
Wed 01:00 0.42 · high 4.73 · good 31.00 · out of range Fair
Wed 02:00 0.42 · high 4.80 · good 31.10 · out of range Fair
Wed 03:00 0.42 · high 3.70 · good 31.20 · out of range Fair
Wed 04:00 0.42 · high 4.26 · good 31.30 · out of range Fair
Wed 05:00 0.44 · high 4.09 · good 31.30 · out of range Fair
Wed 06:00 0.44 · high 4.10 · good 31.40 · out of range Fair
Wed 07:00 0.44 · high 4.55 · good 31.40 · out of range Fair
Wed 08:00 0.46 · high 4.85 · good 31.40 · out of range Fair
Wed 09:00 0.46 · high 5.30 · good 31.30 · out of range Fair
Wed 10:00 0.46 · high 5.85 · high 31.30 · out of range Fair
Wed 11:00 0.46 · high 4.63 · good 31.20 · out of range Fair
Wed 12:00 0.46 · high 5.24 · good 31.20 · out of range Poor
Wed 13:00 0.46 · high 7.90 · high 31.10 · out of range Poor
Wed 14:00 0.46 · high 5.95 · high 31.10 · out of range Poor
Wed 15:00 0.46 · high 4.65 · good 31.10 · out of range Poor
Wed 16:00 0.48 · high 3.95 · good 31.00 · out of range Poor
Wed 17:00 0.48 · high 4.06 · good 31.00 · out of range Poor
Wed 18:00 0.50 · high 4.06 · good 31.00 · out of range Poor
Wed 19:00 0.50 · high 5.55 · high 31.00 · out of range Poor
Wed 20:00 0.48 · high 7.54 · high 30.90 · out of range Poor
Wed 21:00 0.48 · high 5.65 · high 30.90 · out of range Poor
Wed 22:00 0.48 · high 4.76 · good 30.90 · out of range Poor
Wed 23:00 0.48 · high 4.76 · good 30.90 · out of range Poor
Thu 00:00 0.48 · high 4.81 · good 30.90 · out of range Fair
Thu 01:00 0.48 · high 4.10 · good 30.90 · out of range Fair
Thu 02:00 0.48 · high 4.17 · good 30.90 · out of range Fair
Thu 03:00 0.48 · high 4.46 · good 30.90 · out of range Fair
Thu 04:00 0.48 · high 4.66 · good 30.90 · out of range Fair
Thu 05:00 0.48 · high 7.77 · high 30.90 · out of range Poor
Thu 06:00 0.48 · high 6.44 · high 30.90 · out of range Poor
Thu 07:00 0.50 · high 6.36 · high 30.90 · out of range Poor
Thu 08:00 0.54 · high 6.36 · high 30.90 · out of range Fair
Thu 09:00 0.56 · high 8.03 · high 30.90 · out of range Poor
Thu 10:00 0.60 · high 7.27 · high 30.90 · out of range Poor
Thu 11:00 0.66 · high 7.04 · high 30.90 · out of range Poor
Thu 12:00 0.70 · high 6.65 · high 30.90 · out of range Poor
Thu 13:00 0.68 · high 6.95 · high 30.90 · out of range Poor
Thu 14:00 0.66 · high 6.10 · high 30.90 · out of range Poor
Thu 15:00 0.64 · high 6.02 · high 30.90 · out of range Poor
Thu 16:00 0.62 · high 7.14 · high 30.90 · out of range Poor
Thu 17:00 0.60 · high 5.58 · high 30.90 · out of range Poor
Thu 18:00 0.58 · high 4.96 · good 30.90 · out of range Poor
Thu 19:00 0.60 · high 5.17 · good 30.90 · out of range Poor
Thu 20:00 0.64 · high 6.32 · high 30.90 · out of range Poor
Thu 21:00 0.66 · high 5.34 · good 30.80 · out of range Poor
Thu 22:00 0.64 · high 4.91 · good 30.80 · out of range Poor
Thu 23:00 0.64 · high 6.82 · high 30.80 · out of range Poor
Fri 00:00 0.62 · high 6.22 · high 30.80 · out of range Fair
Fri 01:00 0.60 · high 6.06 · high 30.80 · out of range Fair
Fri 02:00 0.58 · high 5.60 · high 30.80 · out of range Fair
Fri 03:00 0.56 · high 5.56 · high 30.90 · out of range Fair
Fri 04:00 0.56 · high 6.22 · high 30.90 · out of range Fair
Fri 05:00 0.58 · high 5.56 · high 30.90 · out of range Fair
Fri 06:00 0.58 · high 5.02 · good 30.90 · out of range Poor
Fri 07:00 0.62 · high 6.18 · high 30.90 · out of range Poor
Fri 08:00 0.66 · high 7.05 · high 30.90 · out of range Poor
Fri 09:00 0.70 · high 8.44 · high 30.90 · out of range Poor
Fri 10:00 0.68 · high 4.35 · good 30.80 · out of range Poor
Fri 11:00 0.68 · high 4.90 · good 30.80 · out of range Poor
Fri 12:00 0.66 · high 5.80 · high 30.80 · out of range Poor
Fri 13:00 0.64 · high 5.00 · good 30.80 · out of range Poor
Fri 14:00 0.64 · high 4.87 · good 30.80 · out of range Poor
Fri 15:00 0.62 · high 5.04 · good 30.80 · out of range Poor
Fri 16:00 0.62 · high 5.37 · good 30.80 · out of range Poor
Fri 17:00 0.62 · high 5.77 · high 30.80 · out of range Poor
Fri 18:00 0.62 · high 6.58 · high 30.80 · out of range Poor