SnorkelForecast.com

Koh Tao Snorkel Report Today

Thailand · Updated Tue 10:33 (+07) · Source: Snapshot

The skinny

Go in the best window Data updated Tue 10:33 (+07)

Koh Tao has a usable snorkeling window around Tue 11:00. The main thing to watch is tide/current.

Right now (forecast)

Good · 6.2/10

Tue 10:00 (+07)

Later today

Excellent · 7.3/10

Tue 16:00 (+07)

Next three days

Excellent · 7.3/10

Tue 16:00 (+07)

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

Score: 7.3/10

Best time: Tue 11:00

Main risk: Tide/Current

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

Best afternoon signal: Tue 16:00 (Excellent). Peak afternoon wind is about 6.6 m/s.

Email me when it is good

Sunrise

06:09

Sunset

18:16

Water

29.8°C

Max air

27.1°C

Sky

Cloudy

100% cloud

Good model window in the next 72 hours

Next good model window: Tue 11:00–16:00 (8% 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

⚠️ Fair conditions

Main blocker: Waves

Thursday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

The next good model window starts at Tue 11:00 and lasts until 16:00.

Why this verdict

Main blockers across the next 72 hours:

  • Wind (62 hours)
  • Tide/current (57 hours)
  • Waves (56 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

⚠️ Fair

Railay

257 km away

✅ Good

Koh Phi Phi

287 km away

✅ Good

Similan Islands

290 km away

⚠️ Fair

Advanced forecast data

Viewing historical data

Tue 10:00 – Fri 10:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.56 around Tue 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.

5/24 sampled hours stay at or below 0.36m (range 0.36m to 0.56m).

Wind is at or below 5.4m/s in 3/24 sampled hours (range 4.55 to 7.25m/s).

Tides range from 0.49m to 1.37m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Fair ⚠️ Fair
Fair ⚠️ Fair
Good 🌟 Good
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
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
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
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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
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
Tue 10:00 0.38 · high 5.71 · high 29.60 · good Fair
Tue 11:00 0.38 · high 6.48 · high 29.60 · good Fair
Tue 12:00 0.36 · good 4.55 · good 29.60 · good Good
Tue 13:00 0.36 · good 5.65 · high 29.60 · good Fair
Tue 14:00 0.36 · good 5.98 · high 29.60 · good Fair
Tue 15:00 0.36 · good 6.13 · high 29.60 · good Fair
Tue 16:00 0.36 · good 6.45 · high 29.60 · good Fair
Tue 17:00 0.38 · high 6.62 · high 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
Wed 02:00 0.50 · high 5.70 · high 29.50 · good Poor
Wed 03:00 0.54 · high 7.03 · high 29.50 · good Poor
Wed 04:00 0.56 · high 5.73 · high 29.50 · good Poor
Wed 05:00 0.54 · high 5.22 · good 29.50 · good Poor
Wed 06:00 0.54 · high 6.16 · high 29.50 · good Poor
Wed 07:00 0.52 · high 6.58 · high 29.50 · good Fair
Wed 08:00 0.52 · high 7.01 · high 29.50 · good Fair
Wed 09:00 0.54 · high 6.69 · high 29.50 · good Fair
Wed 10:00 0.54 · high 6.61 · high 29.50 · good Fair
Wed 11:00 0.54 · high 6.54 · high 29.50 · good Fair
Wed 12:00 0.52 · high 5.08 · good 29.60 · good Fair
Wed 13:00 0.52 · high 6.50 · high 29.60 · good Fair
Wed 14:00 0.54 · high 7.70 · high 29.60 · good Poor
Wed 15:00 0.58 · high 6.91 · high 29.60 · good Fair
Wed 16:00 0.60 · high 6.19 · high 29.60 · good Fair
Wed 17:00 0.62 · high 7.33 · high 29.50 · good Poor
Wed 18:00 0.54 · high 6.65 · high 29.60 · good Fair
Wed 19:00 0.58 · high 7.01 · high 29.60 · good Poor
Wed 20:00 0.58 · high 7.15 · high 29.60 · good Poor
Wed 21:00 0.56 · high 6.60 · high 29.50 · good Poor
Wed 22:00 0.52 · high 7.39 · high 29.50 · good Poor
Wed 23:00 0.52 · high 7.80 · high 29.50 · good Poor
Thu 00:00 0.50 · high 7.58 · high 29.50 · good Poor
Thu 01:00 0.50 · high 6.91 · high 29.50 · good Poor
Thu 02:00 0.50 · high 6.81 · high 29.50 · good Poor
Thu 03:00 0.52 · high 6.25 · high 29.50 · good Poor
Thu 04:00 0.52 · high 6.59 · high 29.40 · good Poor
Thu 05:00 0.52 · high 6.92 · high 29.40 · good Poor
Thu 06:00 0.52 · high 6.77 · high 29.40 · good Poor
Thu 07:00 0.52 · high 6.38 · high 29.40 · good Fair
Thu 08:00 0.50 · high 7.67 · high 29.40 · good Fair
Thu 09:00 0.50 · high 7.83 · high 29.40 · good Fair
Thu 10:00 0.48 · high 7.78 · high 29.50 · good Fair
Thu 11:00 0.48 · high 7.07 · high 29.50 · good Fair
Thu 12:00 0.46 · high 6.17 · high 29.50 · good Fair
Thu 13:00 0.46 · high 6.22 · high 29.50 · good Fair
Thu 14:00 0.46 · high 7.23 · high 29.50 · good Fair
Thu 15:00 0.46 · high 7.00 · high 29.50 · good Fair
Thu 16:00 0.46 · high 7.42 · high 29.50 · good Fair
Thu 17:00 0.48 · high 7.20 · high 29.40 · good Fair
Thu 18:00 0.58 · high 8.06 · high 29.60 · good Poor
Thu 19:00 0.58 · high 8.46 · high 29.60 · good Poor
Thu 20:00 0.56 · high 6.45 · high 29.60 · good Poor
Thu 21:00 0.54 · high 6.42 · high 29.60 · good Poor
Thu 22:00 0.52 · high 6.41 · high 29.50 · good Poor
Thu 23:00 0.50 · high 6.37 · high 29.50 · good Poor
Fri 00:00 0.52 · high 7.38 · high 29.50 · good Poor
Fri 01:00 0.52 · high 6.88 · high 29.50 · good Poor
Fri 02:00 0.52 · high 7.31 · high 29.50 · good Poor
Fri 03:00 0.52 · high 7.14 · high 29.50 · good Poor
Fri 04:00 0.52 · high 6.39 · high 29.50 · good Poor
Fri 05:00 0.50 · high 6.10 · high 29.50 · good Poor
Fri 06:00 0.50 · high 4.81 · good 29.50 · good Poor
Fri 07:00 0.48 · high 6.07 · high 29.50 · good Fair
Fri 08:00 0.48 · high 6.46 · high 29.50 · good Fair
Fri 09:00 0.48 · high 7.67 · high 29.50 · good Fair