SnorkelForecast.com

Surin Islands Snorkel Report Today

Thailand · Updated Tue 20:31 (+07) · Source: Snapshot

The skinny

Marginal Report Wed 06:24

Surin Islands looks marginal today. The least-bad daylight window is around Thu 07:00, but waves is limiting the forecast.

Score: 3.3/10

Best time: Thu 07:00

Main risk: Waves

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

Best afternoon signal: Wed 12:00 (Poor). Peak afternoon wind is about 7.6 m/s.

Email me when it is good

Sunrise

06:19

Sunset

18:36

Water

28.8°C

Max air

27.7°C

Sky

Cloudy

90% cloud

No good model 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

Wednesday

❌ Poor conditions

Main blocker: Waves

Thursday

❌ Poor conditions

Main blocker: Waves

Friday

❌ Poor conditions

Main blocker: Waves

Best available hours

  • Thu 00:00: Poor (0.34) · still limited by waves, wind
  • Wed 05:00: Poor (0.33) · still limited by waves, wind
  • Fri 04:00: Poor (0.33) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (68 hours)
  • Tide/current (68 hours)
  • Wind (62 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Wed 09:00.

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

Next early morning high tide: Wed 18:00

Wed 05:00, Wed 18:00, Thu 06:00, Thu 19:00, Fri 07:00

Nearby alternatives in Thailand

Similan Islands

89 km away

❌ Poor

Railay

189 km away

✅ Good

Koh Phi Phi

212 km away

⚠️ Fair

Koh Tao

229 km away

✅ Good

Advanced forecast data

Viewing current forecast

Tue 23:00 – Fri 23:00 (+07)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.33 around Wed 12:00; 0 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 1.26m to 1.34m).

Wind is at or below 5.4m/s in 2/24 sampled hours (range 5.25 to 7.68m/s).

Tides range from -0.43m to 1.49m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview
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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
Wed 00:00 1.32 · high 5.59 · high 28.80 · good Poor
Wed 01:00 1.32 · high 6.45 · high 28.80 · good Poor
Wed 02:00 1.34 · high 7.27 · high 28.90 · good Poor
Wed 03:00 1.34 · high 7.24 · high 28.90 · good Poor
Wed 04:00 1.34 · high 6.97 · high 28.90 · good Poor
Wed 05:00 1.34 · high 6.14 · high 29.00 · good Poor
Wed 06:00 1.34 · high 5.98 · high 29.00 · good Poor
Wed 07:00 1.34 · high 5.54 · high 29.00 · good Poor
Wed 08:00 1.34 · high 6.66 · high 29.00 · good Poor
Wed 09:00 1.34 · high 6.61 · high 29.00 · good Poor
Wed 10:00 1.32 · high 6.64 · high 29.00 · good Poor
Wed 11:00 1.32 · high 7.62 · high 29.00 · good Poor
Wed 12:00 1.30 · high 7.15 · high 29.00 · good Poor
Wed 13:00 1.30 · high 6.94 · high 29.00 · good Poor
Wed 14:00 1.32 · high 7.53 · high 28.90 · good Poor
Wed 15:00 1.32 · high 5.30 · good 28.90 · good Poor
Wed 16:00 1.32 · high 6.94 · high 28.90 · good Poor
Wed 17:00 1.30 · high 6.37 · high 28.90 · good Poor
Wed 18:00 1.30 · high 6.60 · high 28.90 · good Poor
Wed 19:00 1.30 · high 7.68 · high 28.90 · good Poor
Wed 20:00 1.28 · high 5.52 · high 28.80 · good Poor
Wed 21:00 1.28 · high 6.76 · high 28.80 · good Poor
Wed 22:00 1.26 · high 5.25 · good 28.80 · good Poor
Wed 23:00 1.26 · high 6.43 · high 28.80 · good Poor
Thu 00:00 1.24 · high 6.56 · high 28.80 · good Poor
Thu 01:00 1.24 · high 5.50 · high 28.80 · good Poor
Thu 02:00 1.24 · high 4.85 · good 28.90 · good Poor
Thu 03:00 1.24 · high 6.01 · high 28.90 · good Poor
Thu 04:00 1.22 · high 7.25 · high 28.90 · good Poor
Thu 05:00 1.22 · high 6.26 · high 28.90 · good Poor
Thu 06:00 1.20 · high 5.01 · good 28.90 · good Poor
Thu 07:00 1.22 · high 6.96 · high 28.90 · good Poor
Thu 08:00 1.24 · high 5.52 · high 28.90 · good Poor
Thu 09:00 1.26 · high 6.96 · high 28.90 · good Poor
Thu 10:00 1.26 · high 7.19 · high 28.90 · good Poor
Thu 11:00 1.26 · high 7.38 · high 28.90 · good Poor
Thu 12:00 1.26 · high 7.89 · high 28.90 · good Poor
Thu 13:00 1.24 · high 7.01 · high 28.90 · good Poor
Thu 14:00 1.24 · high 6.69 · high 28.90 · good Poor
Thu 15:00 1.22 · high 5.57 · high 28.90 · good Poor
Thu 16:00 1.20 · high 7.62 · high 28.80 · good Poor
Thu 17:00 1.20 · high 5.96 · high 28.80 · good Poor
Thu 18:00 1.18 · high 5.47 · high 28.80 · good Poor
Thu 19:00 1.18 · high 7.87 · high 28.80 · good Poor
Thu 20:00 1.20 · high 5.78 · high 28.80 · good Poor
Thu 21:00 1.20 · high 6.90 · high 28.80 · good Poor
Thu 22:00 1.20 · high 7.08 · high 28.80 · good Poor
Thu 23:00 1.22 · high 6.07 · high 28.80 · good Poor
Fri 00:00 1.22 · high 6.58 · high 28.80 · good Poor
Fri 01:00 1.24 · high 8.25 · high 28.80 · good Poor
Fri 02:00 1.24 · high 4.73 · good 28.80 · good Poor
Fri 03:00 1.26 · high 5.79 · high 28.80 · good Poor
Fri 04:00 1.24 · high 5.63 · high 28.90 · good Poor
Fri 05:00 1.22 · high 7.11 · high 28.90 · good Poor
Fri 06:00 1.20 · high 6.13 · high 28.90 · good Poor
Fri 07:00 1.20 · high 7.09 · high 28.90 · good Poor
Fri 08:00 1.18 · high 7.11 · high 28.90 · good Poor
Fri 09:00 1.18 · high 6.94 · high 28.90 · good Poor
Fri 10:00 1.18 · high 6.66 · high 28.90 · good Poor
Fri 11:00 1.18 · high 6.97 · high 28.90 · good Poor
Fri 12:00 1.18 · high 6.74 · high 28.90 · good Poor
Fri 13:00 1.18 · high 6.88 · high 28.90 · good Poor
Fri 14:00 1.16 · high 6.95 · high 28.90 · good Poor
Fri 15:00 1.16 · high 6.01 · high 28.90 · good Poor
Fri 16:00 1.18 · high 6.22 · high 28.90 · good Poor
Fri 17:00 1.18 · high 9.25 · high 28.90 · good Poor
Fri 18:00 1.20 · high 7.02 · high 28.90 · good Poor
Fri 19:00 1.22 · high 5.24 · good 28.90 · good Poor