SnorkelForecast.com

Surin Islands Snorkel Report Today

Thailand · Updated Tue 03:12 (+07) · Source: Snapshot

The skinny

Marginal Report Tue 16:53

Surin Islands looks marginal today. The least-bad daylight window is around Tue 17:00, but waves is limiting the forecast.

Score: 4.0/10

Best time: Tue 17:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Tue 17:00 (Fair). Peak afternoon wind is about 4.7 m/s.

Email me when it is good

Sunrise

06:17

Sunset

18:52

Water

29.7°C

Max air

28.3°C

Sky

Partly cloudy

31% cloud

No safe window in the next 72 hours

Use the best-available section for the least-bad times.

3-day planner Best available Show data

3-day planner

Tuesday

⚠️ fair conditions

Main blocker: Waves

Wednesday

⚠️ fair conditions

Main blocker: Waves

Thursday

❌ poor conditions

Main blocker: Waves

Best available hours

  • Tue 10:00 — Fair (0.40) · still limited by waves, tide/current
  • Tue 11:00 — Fair (0.39) · still limited by waves, tide/current
  • Wed 02:00 — Fair (0.38) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (65 hours)
  • Tide/current (65 hours)
  • Wind (36 hours)

Jellyfish drift risk

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

Low · 34/100

Low drift risk now.

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

Next early morning high tide: Tue 20:00

Tue 20:00, Wed 08:00, Wed 21:00, Thu 09:00, Thu 22:00

Nearby alternatives in Thailand

Similan Islands

89 km away

⚠️ Fair

Railay

189 km away

✅ Good

Koh Phi Phi

212 km away

✅ Good

Koh Tao

229 km away

✅ Good

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 0.43 around Thu 13:00; 3 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 1.12m to 1.38m).

Wind is at or below 5.4m/s in 16/24 sampled hours (range 3.91 to 7.67m/s).

Tides range from -0.65m to 2.04m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
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fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
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fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
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fair ⚠️ Fair
poor ❌ Limited
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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
Wed 09:00 1.38 · high 7.47 · high 29.20 · good poor
Wed 10:00 1.36 · high 5.64 · high 29.20 · good poor
Wed 11:00 1.36 · high 5.73 · high 29.20 · good poor
Wed 12:00 1.34 · high 5.86 · high 29.20 · good poor
Wed 13:00 1.32 · high 5.97 · high 29.20 · good poor
Wed 14:00 1.30 · high 5.33 · good 29.20 · good poor
Wed 15:00 1.28 · high 5.23 · good 29.10 · good poor
Wed 16:00 1.26 · high 4.84 · good 29.10 · good poor
Wed 17:00 1.26 · high 4.55 · good 29.10 · good poor
Wed 18:00 1.24 · high 4.40 · good 29.10 · good poor
Wed 19:00 1.22 · high 4.18 · good 29.10 · good poor
Wed 20:00 1.20 · high 4.92 · good 29.10 · good poor
Wed 21:00 1.18 · high 5.18 · good 29.10 · good poor
Wed 22:00 1.18 · high 5.21 · good 29.10 · good poor
Wed 23:00 1.16 · high 5.03 · good 29.10 · good poor
Thu 00:00 1.16 · high 3.91 · good 29.10 · good poor
Thu 01:00 1.16 · high 7.67 · high 29.20 · good poor
Thu 02:00 1.16 · high 6.52 · high 29.20 · good poor
Thu 03:00 1.16 · high 5.21 · good 29.20 · good poor
Thu 04:00 1.16 · high 4.92 · good 29.30 · good poor
Thu 05:00 1.14 · high 4.83 · good 29.30 · good fair
Thu 06:00 1.14 · high 4.99 · good 29.30 · good fair
Thu 07:00 1.14 · high 6.23 · high 29.30 · good poor
Thu 08:00 1.12 · high 4.78 · good 29.30 · good fair
Thu 09:00 1.12 · high 4.65 · good 29.30 · good poor
Thu 10:00 1.12 · high 5.73 · high 29.30 · good poor
Thu 11:00 1.12 · high 4.86 · good 29.20 · good poor
Thu 12:00 1.12 · high 3.89 · good 29.20 · good poor
Thu 13:00 1.12 · high 4.34 · good 29.20 · good poor
Thu 14:00 1.10 · high 4.41 · good 29.20 · good poor
Thu 15:00 1.10 · high 4.99 · good 29.20 · good poor
Thu 16:00 1.08 · high 4.78 · good 29.20 · good poor
Thu 17:00 1.08 · high 4.67 · good 29.10 · good poor
Thu 18:00 1.06 · high 4.33 · good 29.10 · good poor
Thu 19:00 1.06 · high 4.73 · good 29.10 · good poor
Thu 20:00 1.04 · high 4.81 · good 29.10 · good poor
Thu 21:00 1.04 · high 4.85 · good 29.10 · good poor
Thu 22:00 1.04 · high 4.71 · good 29.10 · good poor
Thu 23:00 1.04 · high 5.55 · high 29.10 · good poor
Fri 00:00 1.04 · high 5.17 · good 29.10 · good poor
Fri 01:00 1.04 · high 4.71 · good 29.10 · good poor
Fri 02:00 1.04 · high 4.18 · good 29.20 · good poor
Fri 03:00 1.04 · high 4.49 · good 29.20 · good poor
Fri 04:00 1.04 · high 3.13 · good 29.20 · good poor
Fri 05:00 1.04 · high 5.02 · good 29.20 · good poor
Fri 06:00 1.04 · high 4.21 · good 29.20 · good poor
Fri 07:00 1.04 · high 4.04 · good 29.20 · good fair
Fri 08:00 1.02 · high 4.72 · good 29.20 · good fair
Fri 09:00 1.02 · high 8.14 · high 29.20 · good poor
Fri 10:00 1.02 · high 5.08 · good 29.20 · good poor
Fri 11:00 1.02 · high 5.54 · high 29.20 · good poor
Fri 12:00 1.02 · high 5.61 · high 29.20 · good poor
Fri 13:00 1.02 · high 5.48 · high 29.20 · good poor
Fri 14:00 1.02 · high 5.14 · good 29.20 · good poor
Fri 15:00 1.02 · high 4.81 · good 29.20 · good poor
Fri 16:00 1.00 · high 5.07 · good 29.20 · good poor
Fri 17:00 1.00 · high 4.97 · good 29.10 · good poor
Fri 18:00 0.98 · high 6.03 · high 29.10 · good poor
Fri 19:00 0.96 · high 6.36 · high 29.10 · good poor
Fri 20:00 0.96 · high 4.50 · good 29.10 · good poor
Fri 21:00 0.94 · high 4.19 · good 29.10 · good poor
Fri 22:00 0.94 · high 4.69 · good 29.10 · good poor
Fri 23:00 0.92 · high 3.71 · good 29.10 · good poor
Sat 00:00 0.92 · high 3.32 · good 29.10 · good fair
Sat 01:00 0.92 · high 5.75 · high 29.10 · good poor
Sat 02:00 0.92 · high 4.39 · good 29.20 · good poor
Sat 03:00 0.92 · high 3.72 · good 29.20 · good poor
Sat 04:00 0.92 · high 3.58 · good 29.20 · good poor
Sat 05:00 0.78 · high 4.48 · good 29.70 · good poor
Sat 06:00 0.78 · high 4.70 · good 29.70 · good poor
Sat 07:00 0.78 · high 5.01 · good 29.70 · good poor
Sat 08:00 0.80 · high 5.07 · good 29.70 · good poor