SnorkelForecast.com

Surin Islands Snorkel Report Today

Thailand · Updated Sat 04:01 (+07) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Sun 21:46

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

Score: 3.9/10

Best time: Mon 17:00

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:16

Sunset

18:52

Water

29.5°C

Max air

28.1°C

Sky

Clear

16% 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

Sunday

❌ poor conditions

Main blocker: Waves

Monday

⚠️ fair conditions

Main blocker: Waves

Tuesday

❌ poor conditions

Main blocker: Waves

Best available hours

  • Mon 10:00 — Fair (0.39) · still limited by waves, tide/current
  • Mon 11:00 — Fair (0.38) · still limited by waves, tide/current
  • Mon 04:00 — Fair (0.37) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (37 hours)
  • Tide/current (37 hours)
  • Darkness (21 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: Sun 19:00

Sun 19:00, Mon 07:00, Mon 19:00

Nearby alternatives in Thailand

Similan Islands

89 km away

❌ Poor

Railay

189 km away

✅ Good

Koh Phi Phi

212 km away

✅ Good

Koh Tao

229 km away

✅ Good

Advanced forecast data

Viewing historical data

Thu 14:00 – Sun 14:00 (+07)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.37 around Fri 15:00; 2 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 1.02m to 1.1m).

Wind is at or below 5.4m/s in 19/24 sampled hours (range 3.13 to 8.14m/s).

Tides range from -0.56m to 2.0m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
poor ❌ Limited
poor ❌ Limited
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
poor ❌ Limited
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
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
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 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
Sat 09:00 0.80 · high 5.20 · good 29.70 · good fair
Sat 10:00 0.80 · high 5.35 · good 29.70 · good fair
Sat 11:00 0.80 · high 5.20 · good 29.70 · good fair
Sat 12:00 0.80 · high 5.01 · good 29.60 · good poor
Sat 13:00 0.80 · high 5.05 · good 29.60 · good poor
Sat 14:00 0.82 · high 5.17 · good 29.60 · good poor
Sat 15:00 0.82 · high 5.21 · good 29.50 · good poor
Sat 16:00 0.82 · high 5.12 · good 29.50 · good poor
Sat 17:00 0.82 · high 5.08 · good 29.50 · good poor
Sat 18:00 0.82 · high 5.24 · good 29.40 · good poor
Sat 19:00 0.82 · high 5.14 · good 29.40 · good poor
Sat 20:00 0.82 · high 5.05 · good 29.40 · good poor
Sat 21:00 0.82 · high 5.30 · good 29.40 · good poor
Sat 22:00 0.82 · high 5.27 · good 29.40 · good poor
Sat 23:00 0.80 · high 5.02 · good 29.40 · good poor
Sun 00:00 0.80 · high 4.73 · good 29.40 · good fair
Sun 01:00 0.80 · high 4.62 · good 29.40 · good fair
Sun 02:00 0.78 · high 4.52 · good 29.40 · good fair
Sun 03:00 0.78 · high 4.38 · good 29.50 · good fair
Sun 04:00 0.78 · high 4.38 · good 29.50 · good fair
Sun 05:00 0.76 · high 4.54 · good 29.60 · good fair
Sun 06:00 0.76 · high 4.75 · good 29.60 · good fair
Sun 07:00 0.76 · high 4.83 · good 29.60 · good fair
Sun 08:00 0.74 · high 5.05 · good 29.70 · good fair
Sun 09:00 0.74 · high 5.45 · high 29.70 · good poor
Sun 10:00 0.74 · high 5.98 · high 29.60 · good poor
Sun 11:00 0.76 · high 6.25 · high 29.60 · good poor
Sun 12:00 0.76 · high 5.43 · high 29.60 · good poor
Sun 13:00 0.78 · high 5.19 · good 29.60 · good poor