Koh Tao Snorkel Report Today

Thailand · Updated Tue 21:53 (+07) · Source: Snapshot

The skinny

No forecast for later today Data updated Tue 21:53 (+07)

No remaining forecast hours are available for today in Koh Tao. Check the three-day outlook.

Right now (forecast)

Poor · 0.0/10

Tue 23:00 (+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: No score

Best time: -

Main risk: Changing Conditions

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

27.1°C

Sky

Cloudy

99% 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

❌ Poor 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 (69 hours)
  • Tide/current (69 hours)
  • Wind (68 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

Mon 23:00 – Thu 23:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.63 around Tue 13:00; 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 0.38m to 0.62m).

Wind is at or below 5.4m/s in 5/24 sampled hours (range 2.35 to 8.75m/s).

Tides range from 0.29m to 0.91m; 2 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
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Good 🌟 Good
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
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
Good 🌟 Good
Fair ⚠️ Fair
Good 🌟 Good
Fair ⚠️ Fair
Good 🌟 Good
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
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
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
Mon 23:00 0.56 · high 6.49 · high 29.70 · good Poor
Tue 00:00 0.58 · high 7.22 · high 29.70 · good Poor
Tue 01:00 0.58 · high 8.28 · high 29.70 · good Poor
Tue 02:00 0.58 · high 8.75 · high 29.70 · good Poor
Tue 03:00 0.58 · high 7.21 · high 29.60 · good Poor
Tue 04:00 0.58 · high 8.05 · high 29.60 · good Poor
Tue 05:00 0.56 · high 8.08 · high 29.60 · good Poor
Tue 06:00 0.56 · high 8.51 · high 29.60 · good Poor
Tue 07:00 0.62 · high 7.10 · high 29.60 · good Fair
Tue 08:00 0.58 · high 7.27 · high 29.60 · good Fair
Tue 09:00 0.56 · high 6.07 · high 29.70 · good Fair
Tue 10:00 0.52 · high 5.45 · high 29.70 · good Good
Tue 11:00 0.48 · high 6.15 · high 29.80 · good Fair
Tue 12:00 0.42 · high 5.34 · good 29.80 · good Fair
Tue 13:00 0.38 · high 3.70 · good 29.80 · good Good
Tue 14:00 0.40 · high 2.90 · good 29.80 · good Fair
Tue 15:00 0.40 · high 2.35 · good 29.80 · good Good
Tue 16:00 0.42 · high 4.04 · good 29.80 · good Good
Tue 17:00 0.50 · high 6.70 · high 29.80 · good Fair
Tue 18:00 0.48 · high 7.66 · high 29.80 · good Fair
Tue 19:00 0.58 · high 7.81 · high 29.80 · good Poor
Tue 20:00 0.58 · high 8.43 · high 29.80 · good Poor
Tue 21:00 0.58 · high 5.56 · high 29.70 · good Poor
Tue 22:00 0.58 · high 6.80 · high 29.70 · good Poor
Tue 23:00 0.58 · high 7.08 · high 29.70 · good Poor
Wed 00:00 0.56 · high 7.67 · high 29.70 · good Poor
Wed 01:00 0.56 · high 6.66 · high 29.70 · good Poor
Wed 02:00 0.54 · high 6.86 · high 29.70 · good Poor
Wed 03:00 0.56 · high 7.58 · high 29.60 · good Poor
Wed 04:00 0.58 · high 7.87 · high 29.60 · good Poor
Wed 05:00 0.58 · high 8.29 · high 29.60 · good Poor
Wed 06:00 0.56 · high 7.34 · high 29.60 · good Poor
Wed 07:00 0.56 · high 7.28 · high 29.60 · good Fair
Wed 08:00 0.52 · high 6.72 · high 29.60 · good Fair
Wed 09:00 0.50 · high 6.22 · high 29.70 · good Fair
Wed 10:00 0.46 · high 5.06 · good 29.70 · good Good
Wed 11:00 0.44 · high 6.78 · high 29.70 · good Fair
Wed 12:00 0.42 · high 6.39 · high 29.80 · good Good
Wed 13:00 0.40 · high 7.10 · high 29.80 · good Fair
Wed 14:00 0.42 · high 5.13 · good 29.80 · good Good
Wed 15:00 0.46 · high 7.51 · high 29.80 · good Fair
Wed 16:00 0.48 · high 8.16 · high 29.80 · good Fair
Wed 17:00 0.54 · high 8.30 · high 29.80 · good Fair
Wed 18:00 0.68 · high 8.23 · high 29.70 · good Poor
Wed 19:00 0.72 · high 9.04 · high 29.70 · good Poor
Wed 20:00 0.70 · high 7.88 · high 29.70 · good Poor
Wed 21:00 0.70 · high 7.81 · high 29.70 · good Poor
Wed 22:00 0.68 · high 7.06 · high 29.70 · good Poor
Wed 23:00 0.66 · high 6.67 · high 29.70 · good Poor
Thu 00:00 0.64 · high 7.31 · high 29.70 · good Poor
Thu 01:00 0.62 · high 7.74 · high 29.70 · good Poor
Thu 02:00 0.64 · high 7.94 · high 29.70 · good Poor
Thu 03:00 0.66 · high 8.61 · high 29.70 · good Poor
Thu 04:00 0.66 · high 8.34 · high 29.60 · good Poor
Thu 05:00 0.66 · high 8.42 · high 29.60 · good Poor
Thu 06:00 0.64 · high 8.32 · high 29.60 · good Poor
Thu 07:00 0.64 · high 7.56 · high 29.60 · good Poor
Thu 08:00 0.60 · high 7.55 · high 29.60 · good Fair
Thu 09:00 0.58 · high 6.58 · high 29.70 · good Fair
Thu 10:00 0.54 · high 6.94 · high 29.70 · good Fair
Thu 11:00 0.54 · high 6.15 · high 29.70 · good Fair
Thu 12:00 0.56 · high 6.67 · high 29.80 · good Fair
Thu 13:00 0.56 · high 7.56 · high 29.80 · good Fair
Thu 14:00 0.60 · high 6.87 · high 29.80 · good Fair
Thu 15:00 0.62 · high 7.36 · high 29.80 · good Poor
Thu 16:00 0.66 · high 8.04 · high 29.80 · good Poor
Thu 17:00 0.66 · high 11.37 · high 29.70 · good Poor
Thu 18:00 0.70 · high 9.46 · high 29.90 · good Poor
Thu 19:00 0.72 · high 9.31 · high 29.90 · good Poor
Thu 20:00 0.70 · high 8.41 · high 29.90 · good Poor
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