SnorkelForecast.com

Koh Tao Snorkel Report Today

Thailand · Updated Tue 14:05 (+07) · Source: Snapshot

The skinny

Go in the best window Data updated Tue 14:05 (+07)

Koh Tao has a usable snorkeling window around Tue 15:00. The main thing to watch is tide/current.

Right now (forecast)

Excellent · 7.4/10

Tue 14:00 (+07)

Later today

Good · 7.0/10

Tue 16:00 (+07)

Next three days

Good · 7.0/10

Tue 16:00 (+07)

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

Score: 7.0/10

Best time: Tue 15:00

Main risk: Tide/Current

No useful morning window is showing yet.

Best afternoon signal: Tue 16:00 (Good). Peak afternoon wind is about 6.2 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

72% cloud

Good model window in the next 72 hours

Next good model window: Tue 15:00–17:00 (4% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Tuesday

✅ Good conditions

Main blocker: Tide/current

Wednesday

⚠️ Fair conditions

Main blocker: Wind

Thursday

❌ Poor conditions

Main blocker: Waves

Best available hours

The next good model window starts at Tue 15:00 and lasts until 17:00.

Why this verdict

Main blockers across the next 72 hours:

  • Wind (67 hours)
  • Waves (60 hours)
  • Tide/current (58 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

Fri 14:00 – Mon 14:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.4 around Sat 13:00; 6 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 0.56m to 0.7m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 6.15 to 10.43m/s).

Tides range from 0.41m to 1.28m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
Fair ⚠️ Fair
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
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
Fair ⚠️ Fair
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Fri 14:00 0.56 · high 6.17 · high 29.70 · good Fair
Fri 15:00 0.58 · high 7.54 · high 29.70 · good Fair
Fri 16:00 0.58 · high 8.40 · high 29.70 · good Fair
Fri 17:00 0.58 · high 9.02 · high 29.70 · good Poor
Fri 18:00 0.62 · high 6.25 · high 29.70 · good Fair
Fri 19:00 0.62 · high 9.30 · high 29.70 · good Poor
Fri 20:00 0.60 · high 8.03 · high 29.70 · good Poor
Fri 21:00 0.58 · high 7.73 · high 29.70 · good Poor
Fri 22:00 0.56 · high 8.31 · high 29.60 · good Poor
Fri 23:00 0.56 · high 8.58 · high 29.60 · good Poor
Sat 00:00 0.58 · high 8.39 · high 29.60 · good Poor
Sat 01:00 0.58 · high 9.05 · high 29.60 · good Poor
Sat 02:00 0.58 · high 7.68 · high 29.60 · good Poor
Sat 03:00 0.68 · high 9.09 · high 29.60 · good Poor
Sat 04:00 0.66 · high 9.46 · high 29.60 · good Poor
Sat 05:00 0.68 · high 10.43 · high 29.60 · good Poor
Sat 06:00 0.68 · high 10.32 · high 29.60 · good Poor
Sat 07:00 0.70 · high 9.60 · high 29.60 · good Poor
Sat 08:00 0.70 · high 9.67 · high 29.60 · good Poor
Sat 09:00 0.70 · high 9.37 · high 29.60 · good Poor
Sat 10:00 0.70 · high 8.41 · high 29.60 · good Poor
Sat 11:00 0.66 · high 7.59 · high 29.60 · good Poor
Sat 12:00 0.62 · high 6.72 · high 29.60 · good Fair
Sat 13:00 0.58 · high 6.15 · high 29.60 · good Fair
Sat 14:00 0.56 · high 6.14 · high 29.60 · good Fair
Sat 15:00 0.54 · high 5.53 · high 29.60 · good Fair
Sat 16:00 0.52 · high 6.17 · high 29.60 · good Fair
Sat 17:00 0.54 · high 6.61 · high 29.60 · good Fair
Sat 18:00 0.58 · high 7.05 · high 29.60 · good Poor
Sat 19:00 0.58 · high 3.36 · good 29.60 · good Poor
Sat 20:00 0.60 · high 4.51 · good 29.60 · good Poor
Sat 21:00 0.60 · high 4.82 · good 29.60 · good Poor
Sat 22:00 0.62 · high 4.12 · good 29.60 · good Poor
Sat 23:00 0.64 · high 4.32 · good 29.60 · good Poor
Sun 00:00 0.64 · high 5.41 · high 29.60 · good Poor
Sun 01:00 0.66 · high 5.35 · good 29.60 · good Poor
Sun 02:00 0.66 · high 5.46 · high 29.60 · good Poor
Sun 03:00 0.46 · high 5.83 · high 29.50 · good Poor
Sun 04:00 0.48 · high 6.33 · high 29.50 · good Poor
Sun 05:00 0.48 · high 5.77 · high 29.50 · good Poor
Sun 06:00 0.48 · high 5.95 · high 29.50 · good Poor
Sun 07:00 0.48 · high 6.64 · high 29.50 · good Fair
Sun 08:00 0.50 · high 7.64 · high 29.50 · good Poor
Sun 09:00 0.54 · high 7.32 · high 29.50 · good Poor
Sun 10:00 0.56 · high 7.87 · high 29.50 · good Poor
Sun 11:00 0.56 · high 7.79 · high 29.50 · good Poor
Sun 12:00 0.54 · high 6.75 · high 29.50 · good Poor
Sun 13:00 0.54 · high 6.12 · high 29.50 · good Fair
Sun 14:00 0.52 · high 5.81 · high 29.50 · good Fair
Sun 15:00 0.52 · high 5.45 · high 29.50 · good Fair
Sun 16:00 0.50 · high 6.05 · high 29.50 · good Fair
Sun 17:00 0.50 · high 5.74 · high 29.50 · good Fair
Sun 18:00 0.48 · high 5.33 · good 29.50 · good Fair
Sun 19:00 0.48 · high 4.38 · good 29.40 · good Poor
Sun 20:00 0.50 · high 5.11 · good 29.40 · good Poor
Sun 21:00 0.52 · high 4.61 · good 29.40 · good Poor
Sun 22:00 0.54 · high 5.88 · high 29.40 · good Poor
Sun 23:00 0.56 · high 5.25 · good 29.40 · good Poor
Mon 00:00 0.56 · high 5.10 · good 29.40 · good Poor
Mon 01:00 0.58 · high 0.73 · good 29.40 · good Poor
Mon 02:00 0.58 · high 2.15 · good 29.40 · good Poor
Mon 03:00 0.56 · high 1.07 · good 29.40 · good Poor
Mon 04:00 0.56 · high 0.85 · good 29.40 · good Poor
Mon 05:00 0.56 · high 0.71 · good 29.40 · good Poor
Mon 06:00 0.54 · high 2.00 · good 29.40 · good Poor
Mon 07:00 0.14 · good 3.11 · good 29.40 · good Good
Mon 08:00 0.14 · good 3.12 · good 29.40 · good Good
Mon 09:00 0.14 · good 3.38 · good 29.40 · good Good
Mon 10:00 0.14 · good 4.29 · good 29.40 · good Good
Mon 11:00 0.14 · good 3.29 · good 29.40 · good Good
Mon 12:00 0.14 · good 3.07 · good 29.40 · good Good
Mon 13:00 0.14 · good 5.47 · high 29.40 · good Good