MARINE REPORT / 72 HOURS

Redang Island Snorkel Report Today

Malaysia · Updated Sun 13:49 (+08) · Source: Snapshot

The skinny

Go in the best window Data updated Sun 13:49 (+08)

Redang Island has a usable snorkeling window around Sun 16:00. The main thing to watch is sea temperature.

Right now (forecast)

Fair · 5.4/10

Sun 15:00 (+08)

Later today

Good · 5.8/10

Sun 17:00 (+08)

Next three days

Excellent · 7.3/10

Wed 11:00 (+08)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 5.8/10

Best time: Sun 16:00

Main risk: Sea Temperature

No useful morning window is showing yet.

Best afternoon signal: Sun 17:00 (Good). Peak afternoon wind is about 3.6 m/s.

Email me when it is good

Sunrise

06:53

Sunset

18:52

Water

30.9°C

Max air

28.0°C

Sky

Cloudy

89% cloud

Good model window in the next 72 hours

Next good model window: Sun 16:00–17:00 (42% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Sunday

✅ Good conditions

Main blocker: Sea temperature

Monday

✅ Good conditions

Main blocker: Sea temperature

Tuesday

✅ Excellent conditions

Main blocker: Sea temperature

Best available hours

The next good model window starts at Sun 16:00 and lasts until 17:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (69 hours)
  • Tide/current (64 hours)
  • Darkness (39 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: Mon 03:00

Mon 03:00, Tue 04:00

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

✅ Good

Advanced forecast data

Viewing historical data

Sun 15:00 – Wed 15:00 (+08)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.7 around Mon 14:00; 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 0.14m to 0.26m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.0 to 3.87m/s).

Tides range from 0.24m to 1.39m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
Good 🌟 Good
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Poor ❌ Limited
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Poor ❌ Limited
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Good 🌟 Good
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Poor ❌ Limited
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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
Sun 15:00 0.20 · good 2.09 · good 30.80 · out of range Good
Sun 16:00 0.20 · good 2.59 · good 30.80 · out of range Good
Sun 17:00 0.20 · good 2.64 · good 30.80 · out of range Good
Sun 18:00 0.20 · good 2.45 · good 30.80 · out of range Good
Sun 19:00 0.26 · good 1.07 · good 31.10 · out of range Good
Sun 20:00 0.26 · good 2.64 · good 31.10 · out of range Poor
Sun 21:00 0.26 · good 3.87 · good 31.00 · out of range Poor
Sun 22:00 0.26 · good 3.23 · good 30.90 · out of range Poor
Sun 23:00 0.22 · good 1.14 · good 30.80 · out of range Poor
Mon 00:00 0.22 · good 2.22 · good 30.70 · out of range Poor
Mon 01:00 0.20 · good 1.00 · good 30.60 · out of range Poor
Mon 02:00 0.20 · good 1.84 · good 30.60 · out of range Poor
Mon 03:00 0.20 · good 2.26 · good 30.50 · out of range Poor
Mon 04:00 0.20 · good 2.42 · good 30.50 · out of range Poor
Mon 05:00 0.20 · good 2.02 · good 30.40 · good Poor
Mon 06:00 0.20 · good 1.27 · good 30.40 · good Poor
Mon 07:00 0.18 · good 1.62 · good 30.40 · good Poor
Mon 08:00 0.18 · good 1.56 · good 30.50 · out of range Good
Mon 09:00 0.16 · good 2.18 · good 30.60 · out of range Good
Mon 10:00 0.16 · good 2.33 · good 30.70 · out of range Good
Mon 11:00 0.14 · good 2.67 · good 30.90 · out of range Good
Mon 12:00 0.14 · good 2.82 · good 31.00 · out of range Good
Mon 13:00 0.14 · good 3.24 · good 31.20 · out of range Good
Mon 14:00 0.14 · good 3.25 · good 31.30 · out of range Good
Mon 15:00 0.14 · good 4.22 · good 31.30 · out of range Good
Mon 16:00 0.14 · good 3.51 · good 31.40 · out of range Good
Mon 17:00 0.14 · good 2.13 · good 31.40 · out of range Good
Mon 18:00 0.14 · good 2.17 · good 31.40 · out of range Good
Mon 19:00 0.14 · good 2.00 · good 31.20 · out of range Good
Mon 20:00 0.14 · good 2.67 · good 31.10 · out of range Poor
Mon 21:00 0.14 · good 2.46 · good 31.10 · out of range Poor
Mon 22:00 0.14 · good 2.95 · good 31.00 · out of range Poor
Mon 23:00 0.14 · good 2.93 · good 31.00 · out of range Poor
Tue 00:00 0.14 · good 2.71 · good 30.90 · out of range Poor
Tue 01:00 0.14 · good 3.08 · good 30.80 · out of range Poor
Tue 02:00 0.14 · good 2.48 · good 30.80 · out of range Poor
Tue 03:00 0.14 · good 2.56 · good 30.70 · out of range Poor
Tue 04:00 0.14 · good 2.90 · good 30.70 · out of range Poor
Tue 05:00 0.14 · good 3.87 · good 30.70 · out of range Poor
Tue 06:00 0.14 · good 3.33 · good 30.60 · out of range Poor
Tue 07:00 0.12 · good 1.72 · good 30.60 · out of range Poor
Tue 08:00 0.12 · good 1.81 · good 30.60 · out of range Good
Tue 09:00 0.12 · good 1.39 · good 30.70 · out of range Good
Tue 10:00 0.12 · good 1.65 · good 30.80 · out of range Good
Tue 11:00 0.12 · good 2.42 · good 30.90 · out of range Good
Tue 12:00 0.12 · good 2.65 · good 31.00 · out of range Good
Tue 13:00 0.12 · good 0.90 · good 31.00 · out of range Good
Tue 14:00 0.12 · good 1.10 · good 31.10 · out of range Good
Tue 15:00 0.12 · good 3.79 · good 31.10 · out of range Good
Tue 16:00 0.12 · good 2.61 · good 31.10 · out of range Good
Tue 17:00 0.12 · good 1.82 · good 31.00 · out of range Good
Tue 18:00 0.12 · good 0.57 · good 31.00 · out of range Good
Tue 19:00 0.12 · good 1.58 · good 31.40 · out of range Good
Tue 20:00 0.12 · good 2.25 · good 31.40 · out of range Poor
Tue 21:00 0.12 · good 0.65 · good 31.30 · out of range Poor
Tue 22:00 0.12 · good 0.78 · good 31.20 · out of range Poor
Tue 23:00 0.12 · good 1.37 · good 31.10 · out of range Poor
Wed 00:00 0.10 · good 1.66 · good 31.00 · out of range Poor
Wed 01:00 0.10 · good 2.75 · good 30.90 · out of range Poor
Wed 02:00 0.10 · good 2.67 · good 30.80 · out of range Poor
Wed 03:00 0.10 · good 3.18 · good 30.70 · out of range Poor
Wed 04:00 0.12 · good 1.47 · good 30.60 · out of range Poor
Wed 05:00 0.12 · good 0.79 · good 30.60 · out of range Poor
Wed 06:00 0.12 · good 0.56 · good 30.50 · out of range Poor
Wed 07:00 0.12 · good 0.57 · good 30.50 · out of range Poor
Wed 08:00 0.12 · good 0.83 · good 30.50 · out of range Good
Wed 09:00 0.12 · good 0.96 · good 30.60 · out of range Good
Wed 10:00 0.14 · good 1.19 · good 30.70 · out of range Good
Wed 11:00 0.14 · good 2.75 · good 30.90 · out of range Good
Wed 12:00 0.14 · good 3.79 · good 31.00 · out of range Good
Wed 13:00 0.14 · good 3.09 · good 31.10 · out of range Good
Wed 14:00 0.14 · good 1.82 · good 31.20 · out of range Good