SnorkelForecast.com

Koh Tao Snorkel Report Today

Thailand · Updated Sun 02:01 (+07) · Source: Snapshot

The skinny

Go in the best window Data updated Sun 02:01 (+07)

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

Right now (forecast)

Poor · 0.0/10

Sun 03:00 (+07)

Later today

Good · 6.8/10

Sun 12:00 (+07)

Next three days

Good · 7.1/10

Mon 12:00 (+07)

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

Score: 6.8/10

Best time: Sun 07:00

Main risk: Tide/Current

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

Best afternoon signal: Sun 12:00 (Good). Peak afternoon wind is about 3.6 m/s.

Email me when it is good

Sunrise

06:10

Sunset

18:23

Water

29.5°C

Max air

26.7°C

Sky

Cloudy

100% cloud

Good model window in the next 72 hours

Next good model window: Sun 07:00–18:00 (37% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Sunday

✅ Good conditions

Main blocker: Tide/current

Monday

✅ Good conditions

Main blocker: Tide/current

Tuesday

✅ Good conditions

Main blocker: Tide/current

Best available hours

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

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (64 hours)
  • Darkness (34 hours)
  • Waves (24 hours)

Jellyfish drift risk

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

Low · 32/100

Low peak drift risk around Sun 10:00.

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: Tue 01:00

Mon 13:00, Tue 01:00, Tue 13:00

Nearby alternatives in Thailand

Surin Islands

229 km away

❌ Poor

Railay

257 km away

✅ Good

Koh Phi Phi

287 km away

❌ Poor

Similan Islands

290 km away

❌ Poor

Advanced forecast data

Viewing current forecast

Sun 03:00 – Wed 03:00 (+07)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.68 around Sun 12:00; 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 0.22m to 0.36m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.74 to 4.23m/s).

Tides range from 0.47m to 0.96m; 0 of 24 hours are in or near peak slack windows.

72-hour forecast overview
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
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
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
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 04:00 0.36 · good 2.61 · good 29.50 · good Poor
Sun 05:00 0.34 · good 3.37 · good 29.50 · good Poor
Sun 06:00 0.32 · good 3.29 · good 29.50 · good Poor
Sun 07:00 0.30 · good 3.96 · good 29.60 · good Good
Sun 08:00 0.28 · good 3.69 · good 29.60 · good Good
Sun 09:00 0.26 · good 4.23 · good 29.70 · good Good
Sun 10:00 0.24 · good 3.45 · good 29.70 · good Good
Sun 11:00 0.24 · good 3.01 · good 29.80 · good Good
Sun 12:00 0.22 · good 2.28 · good 29.80 · good Good
Sun 13:00 0.22 · good 1.98 · good 29.80 · good Good
Sun 14:00 0.22 · good 2.06 · good 29.80 · good Good
Sun 15:00 0.24 · good 2.65 · good 29.80 · good Good
Sun 16:00 0.24 · good 3.41 · good 29.80 · good Good
Sun 17:00 0.24 · good 3.63 · good 29.70 · good Good
Sun 18:00 0.22 · good 3.62 · good 29.70 · good Good
Sun 19:00 0.22 · good 2.57 · good 29.70 · good Poor
Sun 20:00 0.22 · good 1.74 · good 29.70 · good Poor
Sun 21:00 0.22 · good 2.45 · good 29.60 · good Poor
Sun 22:00 0.22 · good 1.83 · good 29.60 · good Poor
Sun 23:00 0.22 · good 2.48 · good 29.60 · good Poor
Mon 00:00 0.22 · good 2.41 · good 29.60 · good Poor
Mon 01:00 0.22 · good 3.04 · good 29.60 · good Poor
Mon 02:00 0.22 · good 2.44 · good 29.60 · good Poor
Mon 03:00 0.22 · good 2.67 · good 29.50 · good Poor
Mon 04:00 0.22 · good 2.69 · good 29.50 · good Poor
Mon 05:00 0.22 · good 2.63 · good 29.50 · good Poor
Mon 06:00 0.22 · good 3.13 · good 29.50 · good Poor
Mon 07:00 0.22 · good 2.55 · good 29.50 · good Good
Mon 08:00 0.22 · good 1.87 · good 29.60 · good Good
Mon 09:00 0.20 · good 1.85 · good 29.60 · good Good
Mon 10:00 0.20 · good 1.60 · good 29.70 · good Good
Mon 11:00 0.20 · good 2.02 · good 29.70 · good Good
Mon 12:00 0.20 · good 2.11 · good 29.80 · good Good
Mon 13:00 0.20 · good 2.23 · good 29.80 · good Good
Mon 14:00 0.20 · good 3.09 · good 29.80 · good Good
Mon 15:00 0.22 · good 3.29 · good 29.80 · good Good
Mon 16:00 0.22 · good 2.97 · good 29.70 · good Good
Mon 17:00 0.24 · good 4.03 · good 29.70 · good Good
Mon 18:00 0.24 · good 5.05 · good 29.70 · good Fair
Mon 19:00 0.26 · good 4.26 · good 29.60 · good Poor
Mon 20:00 0.26 · good 3.87 · good 29.60 · good Poor
Mon 21:00 0.24 · good 3.76 · good 29.60 · good Poor
Mon 22:00 0.24 · good 4.01 · good 29.60 · good Poor
Mon 23:00 0.28 · good 4.44 · good 29.50 · good Poor
Tue 00:00 0.32 · good 5.06 · good 29.50 · good Poor
Tue 01:00 0.36 · good 4.83 · good 29.50 · good Poor
Tue 02:00 0.38 · high 4.85 · good 29.50 · good Poor
Tue 03:00 0.38 · high 4.41 · good 29.50 · good Poor
Tue 04:00 0.40 · high 4.73 · good 29.50 · good Poor
Tue 05:00 0.40 · high 5.12 · good 29.50 · good Poor
Tue 06:00 0.42 · high 5.48 · high 29.50 · good Poor
Tue 07:00 0.42 · high 6.13 · high 29.50 · good Fair
Tue 08:00 0.42 · high 5.86 · high 29.50 · good Good
Tue 09:00 0.40 · high 5.00 · good 29.50 · good Good
Tue 10:00 0.40 · high 5.56 · high 29.60 · good Good
Tue 11:00 0.40 · high 5.41 · high 29.60 · good Fair
Tue 12:00 0.38 · high 5.09 · good 29.60 · good Fair
Tue 13:00 0.38 · high 4.89 · good 29.60 · good Fair
Tue 14:00 0.40 · high 4.90 · good 29.60 · good Fair
Tue 15:00 0.40 · high 5.74 · high 29.60 · good Fair
Tue 16:00 0.42 · high 6.08 · high 29.60 · good Fair
Tue 17:00 0.42 · high 4.98 · good 29.60 · good Fair
Tue 18:00 0.40 · high 5.52 · high 29.60 · good Fair
Tue 19:00 0.40 · high 5.21 · good 29.60 · good Poor
Tue 20:00 0.40 · high 5.84 · high 29.60 · good Poor
Tue 21:00 0.42 · high 5.92 · high 29.60 · good Poor
Tue 22:00 0.42 · high 7.16 · high 29.60 · good Poor
Tue 23:00 0.44 · high 6.74 · high 29.50 · good Poor
Wed 00:00 0.46 · high 6.70 · high 29.50 · good Poor
Wed 01:00 0.48 · high 7.25 · high 29.50 · good Poor