SnorkelForecast.com

Koh Tao Snorkel Report Today

Thailand · Updated Tue 04:13 (+07) · Source: Snapshot

The skinny

Go in the best window Report Wed 10:57

Koh Tao has a usable snorkeling window around Wed 11:00. The main thing to watch is wind.

Score: 7.4/10

Best time: Wed 11:00

Main risk: Wind

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

Best afternoon signal: Wed 14:00 (Excellent). Peak afternoon wind is about 7.7 m/s.

Email me when it is good

Sunrise

06:08

Sunset

18:45

Water

30.5°C

Max air

29.0°C

Sky

Partly cloudy

41% cloud

Good window is available today

Next safe window: Wed 04:00–11:00 (17% 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 04:00 until 11:00.

Why this verdict

Main blockers across the next 72 hours:

  • Wind (40 hours)
  • Waves (37 hours)
  • Tide/current (33 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

Thu 03:00 – Sun 03:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.49 around Thu 10:00; 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.

0/24 sampled hours stay at or below 0.36m (range 0.38m to 0.68m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 6.71 to 8.95m/s).

Tides range from 0.06m to 0.96m; 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
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
poor ❌ Limited
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
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
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
Fri 07:00 0.62 · high 7.23 · high 30.50 · out of range fair
Fri 08:00 0.66 · high 8.62 · high 30.50 · out of range fair
Fri 09:00 0.70 · high 8.67 · high 30.50 · out of range fair
Fri 10:00 0.72 · high 8.73 · high 30.50 · out of range fair
Fri 11:00 0.76 · high 9.39 · high 30.40 · good fair
Fri 12:00 0.78 · high 9.65 · high 30.40 · good poor
Fri 13:00 0.76 · high 9.45 · high 30.40 · good poor
Fri 14:00 0.76 · high 9.16 · high 30.40 · good poor
Fri 15:00 0.74 · high 8.73 · high 30.40 · good poor
Fri 16:00 0.74 · high 8.79 · high 30.40 · good poor
Fri 17:00 0.72 · high 8.64 · high 30.30 · good poor
Fri 18:00 0.72 · high 8.18 · high 30.30 · good poor
Fri 19:00 0.72 · high 8.24 · high 30.30 · good poor
Fri 20:00 0.72 · high 8.15 · high 30.30 · good poor
Fri 21:00 0.72 · high 8.22 · high 30.30 · good poor
Fri 22:00 0.68 · high 8.63 · high 30.30 · good poor
Fri 23:00 0.66 · high 8.29 · high 30.30 · good poor
Sat 00:00 0.62 · high 8.34 · high 30.30 · good poor
Sat 01:00 0.60 · high 8.08 · high 30.30 · good fair
Sat 02:00 0.58 · high 7.77 · high 30.30 · good poor
Sat 03:00 0.56 · high 7.49 · high 30.30 · good poor
Sat 04:00 0.54 · high 6.70 · high 30.30 · good fair
Sat 05:00 0.50 · high 5.88 · high 30.40 · good fair
Sat 06:00 0.48 · high 5.83 · high 30.40 · good fair
Sat 07:00 0.56 · high 4.87 · good 30.40 · good fair
Sat 08:00 0.64 · high 3.70 · good 30.40 · good fair
Sat 09:00 0.72 · high 8.45 · high 30.40 · good fair
Sat 10:00 0.76 · high 10.26 · high 30.40 · good poor
Sat 11:00 0.82 · high 9.47 · high 30.40 · good fair
Sat 12:00 0.86 · high 10.31 · high 30.40 · good poor
Sat 13:00 0.84 · high 8.35 · high 30.40 · good poor
Sat 14:00 0.82 · high 9.53 · high 30.30 · good poor
Sat 15:00 0.80 · high 9.45 · high 30.30 · good poor
Sat 16:00 0.82 · high 8.89 · high 30.30 · good poor
Sat 17:00 0.84 · high 8.83 · high 30.30 · good poor
Sat 18:00 0.86 · high 10.11 · high 30.30 · good poor
Sat 19:00 0.84 · high 10.78 · high 30.30 · good poor
Sat 20:00 0.84 · high 9.66 · high 30.30 · good poor
Sat 21:00 0.82 · high 10.07 · high 30.20 · good poor
Sat 22:00 0.82 · high 8.32 · high 30.20 · good poor
Sat 23:00 0.82 · high 9.08 · high 30.20 · good poor
Sun 00:00 0.82 · high 9.10 · high 30.20 · good poor
Sun 01:00 0.78 · high 10.26 · high 30.20 · good poor
Sun 02:00 0.76 · high 7.99 · high 30.20 · good poor