SnorkelForecast.com

Koh Tao Snorkel Report Today

Thailand · Updated Tue 04:13 (+07) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Wed 14:25

Koh Tao has a usable snorkeling window around Wed 15:00. The main thing to watch is wind.

Score: 7.3/10

Best time: Wed 15:00

Main risk: Wind

No useful morning window is showing yet.

Best afternoon signal: Wed 15:00 (Excellent). Peak afternoon wind is about 7.7 m/s.

Email me when it is good

Sunrise

06:08

Sunset

18:45

Water

30.6°C

Max air

29.0°C

Sky

Clear

4% cloud

Good window is available today

Next safe window: Wed 08:00–11:00 (9% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

✅ excellent conditions

Main blocker: Sea temperature

Thursday

⚠️ fair conditions

Main blocker: Waves

Friday

⚠️ fair conditions

Main blocker: Waves

Best available hours

Next safe window starts at Wed 08:00 until 11:00.

Why this verdict

Main blockers across the next 72 hours:

  • Wind (40 hours)
  • Waves (37 hours)
  • Tide/current (32 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Wed 20:00.

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

Wed 10:00, Thu 11:00

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

⚠️ Fair

Advanced forecast data

Viewing historical data

Tue 07:00 – Fri 07:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.62 around Tue 14:00; 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.

7/24 sampled hours stay at or below 0.36m (range 0.28m to 0.6m).

Wind is at or below 5.4m/s in 6/24 sampled hours (range 3.12 to 8.0m/s).

Tides range from 0.18m to 0.86m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
poor ❌ Limited
poor ❌ Limited
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
fair ⚠️ Fair
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
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Tue 07:00 0.34 · good 3.23 · good 30.50 · out of range good
Tue 08:00 0.32 · good 3.36 · good 30.50 · out of range good
Tue 09:00 0.30 · good 3.12 · good 30.60 · out of range good
Tue 10:00 0.30 · good 3.34 · good 30.50 · out of range good
Tue 11:00 0.28 · good 3.35 · good 30.50 · out of range good
Tue 12:00 0.28 · good 3.12 · good 30.50 · out of range poor
Tue 13:00 0.36 · good 6.59 · high 30.50 · out of range poor
Tue 14:00 0.46 · high 7.38 · high 30.50 · out of range poor
Tue 15:00 0.54 · high 8.00 · high 30.50 · out of range poor
Tue 16:00 0.56 · high 7.73 · high 30.40 · good poor
Tue 17:00 0.56 · high 7.57 · high 30.40 · good poor
Tue 18:00 0.58 · high 7.24 · high 30.40 · good poor
Tue 19:00 0.58 · high 7.36 · high 30.40 · good poor
Tue 20:00 0.60 · high 7.72 · high 30.30 · good poor
Tue 21:00 0.60 · high 7.37 · high 30.30 · good poor
Tue 22:00 0.60 · high 7.14 · high 30.30 · good poor
Tue 23:00 0.58 · high 7.00 · high 30.30 · good poor
Wed 00:00 0.58 · high 6.98 · high 30.30 · good poor
Wed 01:00 0.58 · high 7.12 · high 30.30 · good poor
Wed 02:00 0.58 · high 7.19 · high 30.40 · good fair
Wed 03:00 0.58 · high 6.96 · high 30.40 · good fair
Wed 04:00 0.56 · high 6.67 · high 30.40 · good fair
Wed 05:00 0.54 · high 6.66 · high 30.50 · out of range fair
Wed 06:00 0.52 · high 6.08 · high 30.50 · out of range fair
Wed 07:00 0.52 · high 6.60 · high 30.50 · out of range fair
Wed 08:00 0.50 · high 7.52 · high 30.50 · out of range fair
Wed 09:00 0.50 · high 7.23 · high 30.50 · out of range fair
Wed 10:00 0.50 · high 6.59 · high 30.50 · out of range fair
Wed 11:00 0.48 · high 6.55 · high 30.50 · out of range fair
Wed 12:00 0.48 · high 6.78 · high 30.50 · out of range poor
Wed 13:00 0.52 · high 7.85 · high 30.50 · out of range poor
Wed 14:00 0.54 · high 8.54 · high 30.40 · good poor
Wed 15:00 0.58 · high 7.65 · high 30.40 · good poor
Wed 16:00 0.58 · high 7.37 · high 30.40 · good poor
Wed 17:00 0.60 · high 7.45 · high 30.30 · good poor
Wed 18:00 0.60 · high 7.80 · high 30.30 · good poor
Wed 19:00 0.60 · high 7.55 · high 30.30 · good poor
Wed 20:00 0.58 · high 7.11 · high 30.30 · good poor
Wed 21:00 0.58 · high 7.55 · high 30.30 · good poor
Wed 22:00 0.58 · high 7.96 · high 30.30 · good poor
Wed 23:00 0.58 · high 7.57 · high 30.30 · good poor
Thu 00:00 0.58 · high 7.39 · high 30.30 · good fair
Thu 01:00 0.56 · high 7.05 · high 30.30 · good fair
Thu 02:00 0.54 · high 6.83 · high 30.30 · good fair
Thu 03:00 0.52 · high 7.48 · high 30.40 · good fair
Thu 04:00 0.54 · high 7.37 · high 30.50 · out of range fair
Thu 05:00 0.56 · high 7.05 · high 30.50 · out of range fair
Thu 06:00 0.58 · high 8.38 · high 30.50 · out of range fair
Thu 07:00 0.62 · high 6.82 · high 30.50 · out of range fair
Thu 08:00 0.68 · high 6.71 · high 30.50 · out of range fair
Thu 09:00 0.38 · high 7.24 · high 30.60 · out of range fair
Thu 10:00 0.42 · high 8.78 · high 30.60 · out of range fair
Thu 11:00 0.44 · high 8.21 · high 30.60 · out of range fair
Thu 12:00 0.48 · high 8.53 · high 30.60 · out of range poor
Thu 13:00 0.54 · high 8.95 · high 30.60 · out of range poor
Thu 14:00 0.62 · high 8.72 · high 30.60 · out of range poor
Thu 15:00 0.68 · high 7.85 · high 30.50 · out of range poor
Thu 16:00 0.68 · high 7.36 · high 30.50 · out of range poor
Thu 17:00 0.66 · high 7.34 · high 30.40 · good poor
Thu 18:00 0.66 · high 7.04 · high 30.40 · good poor
Thu 19:00 0.66 · high 7.36 · high 30.40 · good poor
Thu 20:00 0.64 · high 7.31 · high 30.30 · good poor
Thu 21:00 0.64 · high 7.25 · high 30.30 · good poor
Thu 22:00 0.62 · high 7.42 · high 30.30 · good poor
Thu 23:00 0.60 · high 7.37 · high 30.30 · good poor
Fri 00:00 0.58 · high 7.13 · high 30.30 · good fair
Fri 01:00 0.56 · high 7.52 · high 30.30 · good fair
Fri 02:00 0.56 · high 7.74 · high 30.40 · good fair
Fri 03:00 0.54 · high 7.24 · high 30.40 · good fair
Fri 04:00 0.56 · high 7.33 · high 30.40 · good fair
Fri 05:00 0.56 · high 7.20 · high 30.50 · out of range fair
Fri 06:00 0.58 · high 7.14 · high 30.50 · out of range fair