SnorkelForecast.com

Koh Tao Snorkel Report Today

Thailand · Updated Mon 23:51 (+07) · Source: Snapshot

The skinny

Go in the best window Data updated Mon 23:51 (+07)

Koh Tao has a usable snorkeling window around Tue 07:00. The main thing to watch is tide/current.

Right now (forecast)

Poor · 0.0/10

Tue 05:00 (+07)

Later today

Excellent · 7.5/10

Tue 14:00 (+07)

Next three days

Excellent · 7.5/10

Tue 14:00 (+07)

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

Score: 7.5/10

Best time: Tue 07:00

Main risk: Tide/Current

Best morning signal: Tue 11:00 (Good).

Best afternoon signal: Tue 14:00 (Excellent). Peak afternoon wind is about 5.2 m/s.

Email me when it is good

Sunrise

06:09

Sunset

18:17

Water

29.6°C

Max air

27.1°C

Sky

Cloudy

100% cloud

Good model window in the next 72 hours

Next good model window: Tue 07:00–18:00 (34% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Tuesday

✅ Excellent conditions

Main blocker: Tide/current

Wednesday

✅ Good conditions

Main blocker: Tide/current

Thursday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

The next good model window starts at Tue 07:00 and lasts until 18:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (48 hours)
  • Wind (37 hours)
  • Darkness (29 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Tue 19:00.

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

Tue 18:00, 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 05:00 – Thu 05:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.83 around Mon 15:00; 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 0.04m to 0.12m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.47 to 4.47m/s).

Tides range from 0.23m to 1.37m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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
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 05:00 0.12 · good 2.22 · good 29.40 · good Poor
Mon 06:00 0.10 · good 1.47 · good 29.40 · good Poor
Mon 07:00 0.10 · good 3.36 · good 29.40 · good Good
Mon 08:00 0.10 · good 4.47 · good 29.40 · good Good
Mon 09:00 0.08 · good 2.87 · good 29.40 · good Good
Mon 10:00 0.08 · good 2.44 · good 29.50 · good Excellent
Mon 11:00 0.08 · good 2.22 · good 29.50 · good Excellent
Mon 12:00 0.08 · good 2.82 · good 29.60 · good Excellent
Mon 13:00 0.08 · good 1.93 · good 29.60 · good Excellent
Mon 14:00 0.08 · good 1.91 · good 29.60 · good Excellent
Mon 15:00 0.06 · good 0.96 · good 29.60 · good Excellent
Mon 16:00 0.06 · good 0.47 · good 29.60 · good Excellent
Mon 17:00 0.06 · good 1.39 · good 29.60 · good Excellent
Mon 18:00 0.06 · good 1.65 · good 29.50 · good Excellent
Mon 19:00 0.06 · good 1.14 · good 29.50 · good Poor
Mon 20:00 0.06 · good 1.31 · good 29.50 · good Poor
Mon 21:00 0.06 · good 2.37 · good 29.50 · good Poor
Mon 22:00 0.06 · good 3.85 · good 29.50 · good Poor
Mon 23:00 0.04 · good 1.22 · good 29.40 · good Poor
Tue 00:00 0.04 · good 1.46 · good 29.40 · good Poor
Tue 01:00 0.04 · good 2.40 · good 29.40 · good Poor
Tue 02:00 0.04 · good 0.52 · good 29.40 · good Poor
Tue 03:00 0.04 · good 2.22 · good 29.30 · good Poor
Tue 04:00 0.04 · good 2.45 · good 29.30 · good Poor
Tue 05:00 0.04 · good 4.16 · good 29.30 · good Poor
Tue 06:00 0.06 · good 2.79 · good 29.30 · good Poor
Tue 07:00 0.06 · good 3.43 · good 29.40 · good Good
Tue 08:00 0.08 · good 3.20 · good 29.50 · good Good
Tue 09:00 0.08 · good 2.04 · good 29.60 · good Good
Tue 10:00 0.10 · good 0.50 · good 29.80 · good Good
Tue 11:00 0.10 · good 0.79 · good 29.90 · good Good
Tue 12:00 0.10 · good 1.29 · good 30.10 · good Good
Tue 13:00 0.10 · good 1.95 · good 30.20 · good Good
Tue 14:00 0.10 · good 3.65 · good 30.30 · good Good
Tue 15:00 0.08 · good 2.73 · good 30.30 · good Excellent
Tue 16:00 0.08 · good 2.65 · good 30.40 · good Excellent
Tue 17:00 0.08 · good 2.21 · good 30.40 · good Excellent
Tue 18:00 0.06 · good 4.54 · good 30.10 · good Good
Tue 19:00 0.06 · good 2.98 · good 30.10 · good Poor
Tue 20:00 0.06 · good 5.10 · good 30.00 · good Poor
Tue 21:00 0.06 · good 4.41 · good 30.00 · good Poor
Tue 22:00 0.06 · good 5.25 · good 29.90 · good Poor
Tue 23:00 0.08 · good 4.56 · good 29.90 · good Poor
Wed 00:00 0.16 · good 4.76 · good 29.80 · good Poor
Wed 01:00 0.16 · good 6.40 · high 29.80 · good Poor
Wed 02:00 0.18 · good 5.65 · high 29.70 · good Poor
Wed 03:00 0.20 · good 3.79 · good 29.70 · good Poor
Wed 04:00 0.22 · good 4.26 · good 29.70 · good Poor
Wed 05:00 0.24 · good 5.98 · high 29.70 · good Poor
Wed 06:00 0.24 · good 4.20 · good 29.70 · good Poor
Wed 07:00 0.26 · good 4.50 · good 29.70 · good Good
Wed 08:00 0.28 · good 4.02 · good 29.70 · good Good
Wed 09:00 0.32 · good 4.31 · good 29.70 · good Good
Wed 10:00 0.34 · good 4.66 · good 29.80 · good Good
Wed 11:00 0.34 · good 4.10 · good 29.90 · good Good
Wed 12:00 0.34 · good 1.87 · good 29.90 · good Good
Wed 13:00 0.34 · good 4.79 · good 29.90 · good Good
Wed 14:00 0.32 · good 3.20 · good 29.90 · good Good
Wed 15:00 0.32 · good 3.07 · good 29.90 · good Good
Wed 16:00 0.30 · good 3.77 · good 29.90 · good Good
Wed 17:00 0.30 · good 4.25 · good 29.90 · good Good
Wed 18:00 0.24 · good 5.98 · high 29.80 · good Good
Wed 19:00 0.24 · good 6.78 · high 29.80 · good Poor
Wed 20:00 0.26 · good 5.98 · high 29.80 · good Poor
Wed 21:00 0.28 · good 5.92 · high 29.80 · good Poor
Wed 22:00 0.30 · good 5.85 · high 29.80 · good Poor
Wed 23:00 0.58 · high 4.83 · good 29.80 · good Poor
Thu 00:00 0.58 · high 6.03 · high 29.70 · good Poor
Thu 01:00 0.58 · high 6.07 · high 29.70 · good Poor
Thu 02:00 0.60 · high 7.09 · high 29.70 · good Poor
Thu 03:00 0.64 · high 7.70 · high 29.70 · good Poor
Thu 04:00 0.66 · high 6.40 · high 29.70 · good Poor