Koh Tao Snorkel Report Today

Thailand · Updated Tue 18:18 (+07) · Source: Snapshot

The skinny

Poor Data updated Tue 18:18 (+07)

Koh Tao has no good model window later today. Check the three-day outlook and official beach advisories.

Right now (forecast)

Fair · 5.2/10

Tue 18:00 (+07)

Later today

No fresh data for this period.

Next three days

Fair · 4.9/10

Wed 15:00 (+07)

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

Score: 0.0/10

Best time: -

Main risk: Tide/Current

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:09

Sunset

18:16

Water

29.8°C

Max air

27.2°C

Sky

Cloudy

92% 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

Tuesday

❌ Poor conditions

Main blocker: Tide/current

Wednesday

⚠️ Fair conditions

Main blocker: Wind

Thursday

❌ Poor conditions

Main blocker: Waves

Best available hours

  • Wed 15:00: Fair (0.49) · still limited by waves, wind
  • Wed 10:00: Fair (0.48) · still limited by waves, wind
  • Wed 12:00: Fair (0.48) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Wind (69 hours)
  • Waves (64 hours)
  • Tide/current (58 hours)

Jellyfish drift risk

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

Low · 34/100

Low drift risk now.

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

Thu 21:00

Nearby alternatives in Thailand

Surin Islands

229 km away

❌ Poor

Railay

257 km away

✅ Good

Koh Phi Phi

287 km away

✅ Good

Similan Islands

290 km away

❌ Poor

Advanced forecast data

Viewing historical data

Sun 18:00 – Wed 18:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.58 around Mon 10:00; 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 0.6m).

Wind is at or below 5.4m/s in 1/24 sampled hours (range 5.08 to 8.6m/s).

Tides range from -0.13m to 1.42m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
Good 🌟 Good
Fair ⚠️ Fair
Good 🌟 Good
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
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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 18:00 0.48 · high 6.77 · high 29.90 · good Fair
Sun 19:00 0.48 · high 5.97 · high 29.90 · good Poor
Sun 20:00 0.50 · high 6.87 · high 29.90 · good Poor
Sun 21:00 0.54 · high 7.00 · high 29.80 · good Poor
Sun 22:00 0.56 · high 6.93 · high 29.80 · good Poor
Sun 23:00 0.54 · high 6.97 · high 29.80 · good Poor
Mon 00:00 0.54 · high 6.76 · high 29.80 · good Poor
Mon 01:00 0.52 · high 6.92 · high 29.80 · good Poor
Mon 02:00 0.52 · high 6.82 · high 29.80 · good Poor
Mon 03:00 0.56 · high 6.46 · high 29.70 · good Poor
Mon 04:00 0.60 · high 6.43 · high 29.70 · good Poor
Mon 05:00 0.58 · high 6.28 · high 29.70 · good Poor
Mon 06:00 0.54 · high 6.27 · high 29.70 · good Poor
Mon 07:00 0.52 · high 6.58 · high 29.70 · good Fair
Mon 08:00 0.48 · high 6.80 · high 29.70 · good Fair
Mon 09:00 0.46 · high 6.29 · high 29.80 · good Fair
Mon 10:00 0.42 · high 6.09 · high 29.80 · good Good
Mon 11:00 0.42 · high 6.87 · high 29.80 · good Fair
Mon 12:00 0.42 · high 5.08 · good 29.90 · good Good
Mon 13:00 0.42 · high 5.53 · high 29.90 · good Fair
Mon 14:00 0.44 · high 7.45 · high 29.90 · good Fair
Mon 15:00 0.46 · high 7.09 · high 29.90 · good Fair
Mon 16:00 0.48 · high 8.60 · high 29.90 · good Fair
Mon 17:00 0.56 · high 7.92 · high 29.90 · good Fair
Mon 18:00 0.66 · high 8.20 · high 29.90 · good Poor
Mon 19:00 0.74 · high 8.11 · high 29.90 · good Poor
Mon 20:00 0.72 · high 7.95 · high 29.90 · good Poor
Mon 21:00 0.72 · high 7.26 · high 29.90 · good Poor
Mon 22:00 0.70 · high 7.13 · high 29.80 · good Poor
Mon 23:00 0.68 · high 7.13 · high 29.80 · good Poor
Tue 00:00 0.68 · high 7.42 · high 29.80 · good Poor
Tue 01:00 0.66 · high 6.71 · high 29.80 · good Poor
Tue 02:00 0.64 · high 6.27 · high 29.80 · good Poor
Tue 03:00 0.54 · high 6.75 · high 29.80 · good Poor
Tue 04:00 0.52 · high 6.50 · high 29.80 · good Poor
Tue 05:00 0.52 · high 6.99 · high 29.80 · good Poor
Tue 06:00 0.52 · high 6.65 · high 29.80 · good Poor
Tue 07:00 0.52 · high 6.73 · high 29.80 · good Fair
Tue 08:00 0.52 · high 7.46 · high 29.80 · good Fair
Tue 09:00 0.50 · high 6.56 · high 29.80 · good Fair
Tue 10:00 0.50 · high 6.43 · high 29.90 · good Fair
Tue 11:00 0.50 · high 6.85 · high 29.90 · good Fair
Tue 12:00 0.52 · high 5.36 · good 29.90 · good Fair
Tue 13:00 0.52 · high 10.01 · high 29.90 · good Fair
Tue 14:00 0.56 · high 5.70 · high 29.90 · good Fair
Tue 15:00 0.60 · high 7.73 · high 29.90 · good Fair
Tue 16:00 0.64 · high 8.30 · high 29.90 · good Poor
Tue 17:00 0.64 · high 7.42 · high 29.90 · good Fair
Tue 18:00 0.66 · high 8.60 · high 29.90 · good Poor
Tue 19:00 0.68 · high 8.66 · high 29.90 · good Poor
Tue 20:00 0.66 · high 7.61 · high 29.90 · good Poor
Tue 21:00 0.66 · high 8.15 · high 29.80 · good Poor
Tue 22:00 0.64 · high 7.51 · high 29.80 · good Poor
Tue 23:00 0.62 · high 7.68 · high 29.80 · good Poor
Wed 00:00 0.60 · high 7.08 · high 29.80 · good Poor
Wed 01:00 0.58 · high 7.20 · high 29.80 · good Poor
Wed 02:00 0.60 · high 6.50 · high 29.80 · good Poor
Wed 03:00 0.58 · high 6.91 · high 29.70 · good Poor
Wed 04:00 0.58 · high 7.36 · high 29.70 · good Poor
Wed 05:00 0.58 · high 6.15 · high 29.70 · good Poor
Wed 06:00 0.56 · high 7.54 · high 29.70 · good Poor
Wed 07:00 0.56 · high 7.88 · high 29.70 · good Fair
Wed 08:00 0.54 · high 7.66 · high 29.70 · good Fair
Wed 09:00 0.52 · high 7.04 · high 29.80 · good Fair
Wed 10:00 0.50 · high 6.49 · high 29.80 · good Fair
Wed 11:00 0.48 · high 6.28 · high 29.80 · good Fair
Wed 12:00 0.44 · high 7.20 · high 29.80 · good Fair
Wed 13:00 0.42 · high 5.15 · good 29.80 · good Fair
Wed 14:00 0.48 · high 7.57 · high 29.80 · good Fair
Wed 15:00 0.52 · high 8.55 · high 29.80 · good Fair
Wed 16:00 0.58 · high 8.70 · high 29.80 · good Fair
Wed 17:00 0.62 · high 9.05 · high 29.80 · good Fair