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 17:51

Koh Tao has a usable snorkeling window around Wed 18:00. The main thing to watch is wind.

Score: 5.9/10

Best time: Wed 18:00

Main risk: Wind

No useful morning window is showing yet.

Best afternoon signal: Wed 18:00 (Good). Peak afternoon wind is about 7.7 m/s.

Email me when it is good

Sunrise

06:08

Sunset

18:45

Water

30.7°C

Max air

29.0°C

Sky

Clear

7% cloud

Good window is available today

Next safe window: Wed 11:00 (2% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

✅ good conditions

Main blocker: Wind

Thursday

⚠️ fair conditions

Main blocker: Waves

Friday

⚠️ fair conditions

Main blocker: Waves

Best available hours

Next safe window starts at Wed 11:00.

Why this verdict

Main blockers across the next 72 hours:

  • Wind (38 hours)
  • Waves (37 hours)
  • Tide/current (29 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

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

Sun 10:00 – Wed 10:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.57 around Mon 15:00; 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.

16/24 sampled hours stay at or below 0.36m (range 0.22m to 0.42m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 6.2 to 26.6m/s).

Tides range from 0.18m to 1.3m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
fair ⚠️ Fair
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
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
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
Sun 10:00 0.32 · good 17.60 · high 30.30 · good fair
Sun 11:00 0.30 · good 14.50 · high 30.30 · good fair
Sun 12:00 0.26 · good 11.80 · high 30.30 · good poor
Sun 13:00 0.28 · good 10.70 · high 30.30 · good poor
Sun 14:00 0.28 · good 14.00 · high 30.20 · good poor
Sun 15:00 0.30 · good 18.70 · high 30.20 · good poor
Sun 16:00 0.32 · good 18.40 · high 30.20 · good poor
Sun 17:00 0.36 · good 18.50 · high 30.20 · good poor
Sun 18:00 0.38 · high 18.20 · high 30.20 · good poor
Sun 19:00 0.38 · high 18.20 · high 30.20 · good poor
Sun 20:00 0.36 · good 21.30 · high 30.20 · good poor
Sun 21:00 0.36 · good 23.40 · high 30.20 · good poor
Sun 22:00 0.38 · high 24.80 · high 30.20 · good poor
Sun 23:00 0.40 · high 24.70 · high 30.20 · good poor
Mon 00:00 0.42 · high 25.20 · high 30.20 · good poor
Mon 01:00 0.40 · high 26.20 · high 30.20 · good poor
Mon 02:00 0.40 · high 26.60 · high 30.20 · good fair
Mon 03:00 0.38 · high 25.60 · high 30.20 · good fair
Mon 04:00 0.36 · good 23.80 · high 30.20 · good fair
Mon 05:00 0.34 · good 20.70 · high 30.20 · good fair
Mon 06:00 0.32 · good 16.20 · high 30.20 · good fair
Mon 07:00 0.28 · good 9.20 · high 30.20 · good fair
Mon 08:00 0.26 · good 6.20 · high 30.30 · good good
Mon 09:00 0.22 · good 8.50 · high 30.30 · good fair
Mon 10:00 0.16 · good 3.05 · good 30.50 · out of range good
Mon 11:00 0.14 · good 4.88 · good 30.50 · out of range good
Mon 12:00 0.14 · good 4.91 · good 30.50 · out of range poor
Mon 13:00 0.18 · good 4.94 · good 30.50 · out of range poor
Mon 14:00 0.24 · good 4.30 · good 30.40 · good poor
Mon 15:00 0.28 · good 4.97 · good 30.40 · good poor
Mon 16:00 0.32 · good 5.73 · high 30.40 · good poor
Mon 17:00 0.34 · good 5.87 · high 30.30 · good poor
Mon 18:00 0.38 · high 5.82 · high 30.30 · good poor
Mon 19:00 0.40 · high 5.82 · high 30.30 · good poor
Mon 20:00 0.40 · high 5.73 · high 30.30 · good poor
Mon 21:00 0.42 · high 5.50 · high 30.30 · good poor
Mon 22:00 0.42 · high 5.68 · high 30.30 · good poor
Mon 23:00 0.42 · high 6.06 · high 30.30 · good poor
Tue 00:00 0.42 · high 5.87 · high 30.30 · good fair
Tue 01:00 0.42 · high 5.81 · high 30.30 · good fair
Tue 02:00 0.40 · high 5.82 · high 30.30 · good good
Tue 03:00 0.40 · high 5.33 · good 30.40 · good fair
Tue 04:00 0.38 · high 5.44 · high 30.40 · good fair
Tue 05:00 0.38 · high 4.90 · good 30.50 · out of range fair
Tue 06:00 0.36 · good 3.87 · good 30.50 · out of range good
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