SnorkelForecast.com

Koh Tao Snorkel Report Today

Thailand · Updated Tue 09:22 (+07) · Source: Snapshot

The skinny

Go in the best window Data updated Tue 09:22 (+07)

Koh Tao has a usable snorkeling window around Tue 10:00. The main thing to watch is tide/current.

Right now (forecast)

Good · 6.1/10

Tue 09:00 (+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 10:00

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

29.7°C

Max air

27.1°C

Sky

Cloudy

100% cloud

Good model window in the next 72 hours

Next good model window: Tue 10:00–16:00 (10% 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 10:00 and lasts until 16:00.

Why this verdict

Main blockers across the next 72 hours:

  • Wind (61 hours)
  • Tide/current (57 hours)
  • Waves (55 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

Wed 09:00 – Sat 09:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.45 around Thu 08:00; 10 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 0.5m to 0.62m).

Wind is at or below 5.4m/s in 1/24 sampled hours (range 5.08 to 7.8m/s).

Tides range from 0.35m to 1.43m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
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
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
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
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
Fri 10:00 0.48 · high 7.16 · high 29.60 · good Fair
Fri 11:00 0.52 · high 6.76 · high 29.60 · good Fair
Fri 12:00 0.54 · high 7.25 · high 29.70 · good Fair
Fri 13:00 0.58 · high 9.07 · high 29.70 · good Poor
Fri 14:00 0.60 · high 9.78 · high 29.70 · good Poor
Fri 15:00 0.60 · high 9.71 · high 29.70 · good Poor
Fri 16:00 0.62 · high 10.37 · high 29.70 · good Poor
Fri 17:00 0.62 · high 11.47 · high 29.70 · good Poor
Fri 18:00 0.84 · high 5.63 · high 29.60 · good Poor
Fri 19:00 0.86 · high 5.55 · high 29.60 · good Poor
Fri 20:00 0.82 · high 6.37 · high 29.60 · good Poor
Fri 21:00 0.76 · high 7.49 · high 29.50 · good Poor
Fri 22:00 0.72 · high 8.66 · high 29.50 · good Poor
Fri 23:00 0.66 · high 8.11 · high 29.50 · good Poor
Sat 00:00 0.68 · high 8.19 · high 29.50 · good Poor
Sat 01:00 0.72 · high 7.17 · high 29.50 · good Poor
Sat 02:00 0.72 · high 7.63 · high 29.50 · good Poor
Sat 03:00 0.72 · high 6.69 · high 29.50 · good Poor
Sat 04:00 0.72 · high 7.02 · high 29.50 · good Poor
Sat 05:00 0.70 · high 4.78 · good 29.50 · good Poor
Sat 06:00 0.66 · high 2.94 · good 29.50 · good Poor
Sat 07:00 0.64 · high 3.72 · good 29.50 · good Fair
Sat 08:00 0.66 · high 5.65 · high 29.50 · good Poor