Koh Tao Snorkel Report Today

Thailand · Updated Tue 21:17 (+07) · Source: Snapshot

The skinny

Poor Data updated Tue 21:17 (+07)

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

Right now (forecast)

Poor · 0.0/10

Tue 21:00 (+07)

Later today

No fresh data for this period.

Next three days

Fair · 4.4/10

Thu 11:00 (+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: Waves

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

29.9°C

Max air

27.0°C

Sky

Cloudy

100% 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: Waves

Wednesday

⚠️ Fair conditions

Main blocker: Waves

Thursday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Thu 11:00: Fair (0.44) · still limited by waves, tide/current
  • Wed 09:00: Fair (0.44) · still limited by waves, wind
  • Wed 10:00: Fair (0.43) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (71 hours)
  • Tide/current (71 hours)
  • Wind (70 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Tue 23:00.

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

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

Thu 21:00 – Sun 21:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.48 around Fri 14:00; 8 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 0.48m to 0.7m).

Wind is at or below 5.4m/s in 1/24 sampled hours (range 5.05 to 10.38m/s).

Tides range from 0.01m to 1.31m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
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
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
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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
Thu 21:00 0.70 · high 8.03 · high 29.80 · good Poor
Thu 22:00 0.68 · high 7.64 · high 29.80 · good Poor
Thu 23:00 0.66 · high 7.54 · high 29.80 · good Poor
Fri 00:00 0.66 · high 8.64 · high 29.80 · good Poor
Fri 01:00 0.64 · high 8.94 · high 29.80 · good Poor
Fri 02:00 0.66 · high 10.38 · high 29.80 · good Poor
Fri 03:00 0.70 · high 7.83 · high 29.70 · good Poor
Fri 04:00 0.70 · high 8.08 · high 29.70 · good Poor
Fri 05:00 0.68 · high 7.45 · high 29.70 · good Poor
Fri 06:00 0.68 · high 7.07 · high 29.70 · good Poor
Fri 07:00 0.66 · high 6.67 · high 29.70 · good Poor
Fri 08:00 0.64 · high 7.79 · high 29.70 · good Fair
Fri 09:00 0.60 · high 7.74 · high 29.80 · good Fair
Fri 10:00 0.58 · high 7.66 · high 29.80 · good Fair
Fri 11:00 0.54 · high 7.41 · high 29.80 · good Fair
Fri 12:00 0.52 · high 7.24 · high 29.90 · good Fair
Fri 13:00 0.48 · high 8.77 · high 29.90 · good Fair
Fri 14:00 0.50 · high 5.05 · good 29.90 · good Fair
Fri 15:00 0.54 · high 6.56 · high 29.90 · good Fair
Fri 16:00 0.56 · high 7.60 · high 29.90 · good Poor
Fri 17:00 0.58 · high 7.00 · high 29.80 · good Poor
Fri 18:00 0.60 · high 5.93 · high 29.80 · good Poor
Fri 19:00 0.60 · high 7.40 · high 29.80 · good Poor
Fri 20:00 0.60 · high 6.96 · high 29.80 · good Poor
Fri 21:00 0.62 · high 6.51 · high 29.80 · good Poor
Fri 22:00 0.62 · high 7.63 · high 29.80 · good Poor
Fri 23:00 0.62 · high 7.48 · high 29.70 · good Poor
Sat 00:00 0.62 · high 7.23 · high 29.70 · good Poor
Sat 01:00 0.62 · high 8.02 · high 29.70 · good Poor
Sat 02:00 0.62 · high 8.44 · high 29.70 · good Poor
Sat 03:00 0.60 · high 7.57 · high 29.70 · good Poor
Sat 04:00 0.58 · high 8.40 · high 29.70 · good Poor
Sat 05:00 0.58 · high 6.07 · high 29.70 · good Poor
Sat 06:00 0.58 · high 7.13 · high 29.70 · good Poor
Sat 07:00 0.58 · high 7.05 · high 29.70 · good Poor
Sat 08:00 0.58 · high 6.74 · high 29.70 · good Fair
Sat 09:00 0.56 · high 6.72 · high 29.70 · good Fair
Sat 10:00 0.56 · high 6.91 · high 29.70 · good Fair
Sat 11:00 0.54 · high 6.94 · high 29.80 · good Fair
Sat 12:00 0.50 · high 8.17 · high 29.80 · good Fair
Sat 13:00 0.48 · high 7.59 · high 29.80 · good Fair
Sat 14:00 0.50 · high 5.37 · good 29.80 · good Fair
Sat 15:00 0.50 · high 5.67 · high 29.80 · good Fair
Sat 16:00 0.52 · high 6.42 · high 29.80 · good Fair
Sat 17:00 0.52 · high 9.17 · high 29.80 · good Poor
Sat 18:00 0.44 · high 5.02 · good 29.90 · good Fair
Sat 19:00 0.42 · high 5.63 · high 29.90 · good Poor
Sat 20:00 0.46 · high 6.67 · high 29.90 · good Poor
Sat 21:00 0.52 · high 7.30 · high 29.90 · good Poor
Sat 22:00 0.56 · high 7.34 · high 29.90 · good Poor
Sat 23:00 0.56 · high 7.86 · high 29.80 · good Poor
Sun 00:00 0.56 · high 9.22 · high 29.80 · good Poor
Sun 01:00 0.56 · high 7.75 · high 29.80 · good Poor
Sun 02:00 0.56 · high 7.80 · high 29.80 · good Poor
Sun 03:00 0.60 · high 7.42 · high 29.70 · good Poor
Sun 04:00 0.58 · high 7.35 · high 29.70 · good Poor
Sun 05:00 0.58 · high 6.38 · high 29.70 · good Poor
Sun 06:00 0.58 · high 7.88 · high 29.70 · good Poor
Sun 07:00 0.58 · high 7.18 · high 29.70 · good Poor
Sun 08:00 0.56 · high 7.23 · high 29.70 · good Fair
Sun 09:00 0.52 · high 6.76 · high 29.80 · good Fair
Sun 10:00 0.50 · high 6.20 · high 29.80 · good Fair
Sun 11:00 0.52 · high 6.61 · high 29.80 · good Fair
Sun 12:00 0.56 · high 4.97 · good 29.90 · good Fair
Sun 13:00 0.58 · high 5.70 · high 29.90 · good Fair
Sun 14:00 0.56 · high 6.00 · high 29.90 · good Fair
Sun 15:00 0.54 · high 8.21 · high 29.90 · good Poor
Sun 16:00 0.52 · high 7.69 · high 29.90 · good Fair
Sun 17:00 0.52 · high 7.56 · high 29.80 · good Fair
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