SnorkelForecast.com

Redang Island Snorkel Report Today

Malaysia · Updated Tue 04:15 (+08) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Thu 01:16

Redang Island has a usable snorkeling window around Thu 08:00. The main thing to watch is sea temperature.

Score: 8.0/10

Best time: Thu 08:00

Main risk: Sea Temperature

Best morning signal: Thu 10:00 (Excellent).

Best afternoon signal: Thu 12:00 (Excellent). Peak afternoon wind is about 3.2 m/s.

Email me when it is good

Sunrise

07:02

Sunset

19:26

Water

31.2°C

Max air

28.9°C

Sky

Clear

7% cloud

Good window is available today

Next safe window: Thu 00:00–11:00 (47% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Thursday

✅ excellent conditions

Main blocker: Sea temperature

Friday

✅ good conditions

Main blocker: Sea temperature

Best available hours

Next safe window starts at Thu 00:00 until 11:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (34 hours)
  • Tide/current (28 hours)
  • Darkness (18 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: Thu 22:00

Thu 22:00

Nearby alternatives in Malaysia

Perhentian Islands

34 km away

✅ Good

Tioman Island

356 km away

✅ Good

Langkawi

361 km away

✅ Good

Mabul

1739 km away

❌ Poor

Advanced forecast data

Viewing historical data

Wed 17:00 – Sat 17:00 (+08)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.52 around Thu 17:00; 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.

24/24 sampled hours stay at or below 0.36m (range 0.24m to 0.28m).

Wind is at or below 5.4m/s in 4/24 sampled hours (range 1.9 to 15.3m/s).

Tides range from -0.28m to 1.58m; 1 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
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
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
poor ❌ Limited
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
Wed 17:00 0.28 · good 7.20 · high 31.30 · out of range poor
Wed 18:00 0.28 · good 10.50 · high 31.20 · out of range poor
Wed 19:00 0.28 · good 11.90 · high 31.20 · out of range poor
Wed 20:00 0.26 · good 15.30 · high 31.10 · out of range poor
Wed 21:00 0.26 · good 13.90 · high 31.10 · out of range poor
Wed 22:00 0.26 · good 9.20 · high 31.10 · out of range poor
Wed 23:00 0.24 · good 8.00 · high 31.10 · out of range poor
Thu 00:00 0.24 · good 10.70 · high 31.10 · out of range fair
Thu 01:00 0.24 · good 9.60 · high 31.20 · out of range fair
Thu 02:00 0.24 · good 8.60 · high 31.30 · out of range fair
Thu 03:00 0.24 · good 7.40 · high 31.40 · out of range fair
Thu 04:00 0.24 · good 8.10 · high 31.50 · out of range fair
Thu 05:00 0.26 · good 5.60 · high 31.70 · out of range fair
Thu 06:00 0.26 · good 4.30 · good 31.70 · out of range fair
Thu 07:00 0.26 · good 7.80 · high 31.80 · out of range fair
Thu 08:00 0.26 · good 6.00 · high 31.80 · out of range fair
Thu 09:00 0.26 · good 3.60 · good 31.80 · out of range fair
Thu 10:00 0.26 · good 5.00 · good 31.70 · out of range fair
Thu 11:00 0.26 · good 6.90 · high 31.70 · out of range fair
Thu 12:00 0.26 · good 7.20 · high 31.70 · out of range poor
Thu 13:00 0.26 · good 1.90 · good 31.60 · out of range poor
Thu 14:00 0.26 · good 7.00 · high 31.60 · out of range poor
Thu 15:00 0.26 · good 5.50 · high 31.50 · out of range poor
Thu 16:00 0.26 · good 8.20 · high 31.40 · out of range poor
Thu 17:00 0.26 · good 9.00 · high 31.30 · out of range poor
Thu 18:00 0.26 · good 9.60 · high 31.30 · out of range poor
Thu 19:00 0.26 · good 12.90 · high 31.20 · out of range poor
Thu 20:00 0.26 · good 11.50 · high 31.20 · out of range poor
Thu 21:00 0.26 · good 12.30 · high 31.10 · out of range poor
Thu 22:00 0.26 · good 15.70 · high 31.10 · out of range poor
Thu 23:00 0.26 · good 15.70 · high 31.10 · out of range poor
Fri 00:00 0.26 · good 11.90 · high 31.10 · out of range fair
Fri 01:00 0.26 · good 10.90 · high 31.10 · out of range fair
Fri 02:00 0.26 · good 14.60 · high 31.20 · out of range fair
Fri 03:00 0.26 · good 11.10 · high 31.30 · out of range fair
Fri 04:00 0.26 · good 7.90 · high 31.40 · out of range fair
Fri 05:00 0.26 · good 7.00 · high 31.50 · out of range fair
Fri 06:00 0.26 · good 6.90 · high 31.60 · out of range fair
Fri 07:00 0.26 · good 8.10 · high 31.60 · out of range fair
Fri 08:00 0.26 · good 11.60 · high 31.60 · out of range fair
Fri 09:00 0.26 · good 12.10 · high 31.50 · out of range fair
Fri 10:00 0.28 · good 11.20 · high 31.50 · out of range poor
Fri 11:00 0.38 · high 24.30 · high 31.10 · out of range poor
Fri 12:00 0.38 · high 24.40 · high 31.00 · out of range poor
Fri 13:00 0.40 · high 23.80 · high 31.00 · out of range poor
Fri 14:00 0.40 · high 24.80 · high 31.00 · out of range poor
Fri 15:00 0.42 · high 24.90 · high 31.00 · out of range poor
Fri 16:00 0.44 · high 25.40 · high 31.00 · out of range poor
Fri 17:00 0.46 · high 24.70 · high 30.90 · out of range poor
Fri 18:00 0.48 · high 24.70 · high 30.90 · out of range poor
Fri 19:00 0.48 · high 20.90 · high 30.90 · out of range poor
Fri 20:00 0.48 · high 24.50 · high 30.90 · out of range poor
Fri 21:00 0.48 · high 25.70 · high 30.80 · out of range poor
Fri 22:00 0.46 · high 27.10 · high 30.80 · out of range poor
Fri 23:00 0.44 · high 24.70 · high 30.80 · out of range poor
Sat 00:00 0.42 · high 21.80 · high 30.80 · out of range poor
Sat 01:00 0.40 · high 21.00 · high 30.90 · out of range fair
Sat 02:00 0.38 · high 17.70 · high 30.90 · out of range poor
Sat 03:00 0.36 · good 16.50 · high 31.00 · out of range poor
Sat 04:00 0.34 · good 15.10 · high 31.10 · out of range poor
Sat 05:00 0.34 · good 13.40 · high 31.10 · out of range poor
Sat 06:00 0.32 · good 16.60 · high 31.20 · out of range poor
Sat 07:00 0.36 · good 18.40 · high 31.20 · out of range poor
Sat 08:00 0.42 · high 21.50 · high 31.20 · out of range poor
Sat 09:00 0.46 · high 22.40 · high 31.20 · out of range poor
Sat 10:00 0.46 · high 22.20 · high 31.10 · out of range poor
Sat 11:00 0.46 · high 24.60 · high 31.10 · out of range poor
Sat 12:00 0.46 · high 24.70 · high 31.10 · out of range poor
Sat 13:00 0.44 · high 21.70 · high 31.10 · out of range poor
Sat 14:00 0.42 · high 16.60 · high 31.00 · out of range poor
Sat 15:00 0.40 · high 18.20 · high 31.00 · out of range poor
Sat 16:00 0.38 · high 20.30 · high 31.00 · out of range poor