MARINE REPORT / 72 HOURS

Redang Island Snorkel Report Today

Malaysia · Updated Sat 09:01 (+08) · Source: Snapshot

The skinny

Go in the best window Data updated Sat 09:01 (+08)

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

Right now (forecast)

Fair · 5.2/10

Sat 11:00 (+08)

Later today

Good · 6.0/10

Sat 16:00 (+08)

Next three days

Excellent · 7.3/10

Tue 08:00 (+08)

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

Score: 6.0/10

Best time: Sat 16:00

Main risk: Sea Temperature

No useful morning window is showing yet.

Best afternoon signal: Sat 16:00 (Good). Peak afternoon wind is about 3.6 m/s.

Email me when it is good

Sunrise

06:53

Sunset

18:52

Water

31.0°C

Max air

28.4°C

Sky

Cloudy

99% cloud

Good model window in the next 72 hours

Next good model window: Sat 16:00–18:00 (35% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Saturday

✅ Good conditions

Main blocker: Sea temperature

Sunday

✅ Good conditions

Main blocker: Sea temperature

Monday

✅ Good conditions

Main blocker: Sea temperature

Best available hours

The next good model window starts at Sat 16:00 and lasts until 18:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (69 hours)
  • Tide/current (68 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

Thu 11:00 – Sun 11:00 (+08)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.75 around Thu 11:00; 11 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 0.22m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.39 to 4.56m/s).

Tides range from 0.09m to 1.52m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
Excellent ✅ Excellent
Good 🌟 Good
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Good 🌟 Good
Good 🌟 Good
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Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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Poor ❌ Limited
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Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
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Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Thu 11:00 0.16 · good 1.75 · good 31.10 · out of range Excellent
Thu 12:00 0.16 · good 1.20 · good 31.20 · out of range Good
Thu 13:00 0.14 · good 0.72 · good 31.40 · out of range Excellent
Thu 14:00 0.14 · good 1.91 · good 31.50 · out of range Good
Thu 15:00 0.14 · good 2.94 · good 31.50 · out of range Good
Thu 16:00 0.14 · good 3.04 · good 31.50 · out of range Good
Thu 17:00 0.14 · good 4.56 · good 31.40 · out of range Good
Thu 18:00 0.14 · good 3.29 · good 31.40 · out of range Good
Thu 19:00 0.14 · good 2.55 · good 31.30 · out of range Poor
Thu 20:00 0.22 · good 2.20 · good 31.30 · out of range Poor
Thu 21:00 0.20 · good 1.54 · good 31.20 · out of range Poor
Thu 22:00 0.20 · good 0.86 · good 31.20 · out of range Poor
Thu 23:00 0.18 · good 0.39 · good 31.10 · out of range Poor
Fri 00:00 0.22 · good 1.46 · good 31.00 · out of range Poor
Fri 01:00 0.20 · good 2.04 · good 31.00 · out of range Poor
Fri 02:00 0.20 · good 2.51 · good 30.90 · out of range Poor
Fri 03:00 0.20 · good 1.71 · good 30.90 · out of range Poor
Fri 04:00 0.18 · good 1.23 · good 30.80 · out of range Poor
Fri 05:00 0.18 · good 0.59 · good 30.80 · out of range Poor
Fri 06:00 0.18 · good 1.23 · good 30.80 · out of range Poor
Fri 07:00 0.18 · good 1.55 · good 30.70 · out of range Poor
Fri 08:00 0.18 · good 1.54 · good 30.80 · out of range Good
Fri 09:00 0.18 · good 1.90 · good 30.90 · out of range Good
Fri 10:00 0.16 · good 1.61 · good 31.00 · out of range Good
Fri 11:00 0.16 · good 1.95 · good 31.10 · out of range Good
Fri 12:00 0.16 · good 3.83 · good 31.30 · out of range Good
Fri 13:00 0.16 · good 2.68 · good 31.40 · out of range Good
Fri 14:00 0.16 · good 3.02 · good 31.50 · out of range Good
Fri 15:00 0.16 · good 3.59 · good 31.50 · out of range Good
Fri 16:00 0.16 · good 4.29 · good 31.50 · out of range Good
Fri 17:00 0.16 · good 3.76 · good 31.40 · out of range Good
Fri 18:00 0.16 · good 2.99 · good 31.40 · out of range Good
Fri 19:00 0.18 · good 2.93 · good 31.10 · out of range Poor
Fri 20:00 0.18 · good 1.18 · good 31.10 · out of range Poor
Fri 21:00 0.18 · good 1.50 · good 31.00 · out of range Poor
Fri 22:00 0.18 · good 0.67 · good 31.00 · out of range Poor
Fri 23:00 0.18 · good 1.16 · good 30.90 · out of range Poor
Sat 00:00 0.18 · good 1.86 · good 30.90 · out of range Poor
Sat 01:00 0.18 · good 2.55 · good 30.80 · out of range Poor
Sat 02:00 0.18 · good 3.42 · good 30.80 · out of range Poor
Sat 03:00 0.18 · good 2.17 · good 30.70 · out of range Poor
Sat 04:00 0.16 · good 2.25 · good 30.70 · out of range Poor
Sat 05:00 0.20 · good 1.48 · good 30.70 · out of range Poor
Sat 06:00 0.20 · good 0.55 · good 30.60 · out of range Poor
Sat 07:00 0.20 · good 1.01 · good 30.60 · out of range Poor
Sat 08:00 0.20 · good 1.94 · good 30.70 · out of range Good
Sat 09:00 0.20 · good 2.07 · good 30.80 · out of range Good
Sat 10:00 0.18 · good 0.96 · good 30.90 · out of range Good
Sat 11:00 0.18 · good 2.23 · good 31.10 · out of range Good
Sat 12:00 0.18 · good 2.93 · good 31.20 · out of range Good
Sat 13:00 0.18 · good 3.76 · good 31.30 · out of range Good
Sat 14:00 0.18 · good 2.53 · good 31.40 · out of range Good
Sat 15:00 0.18 · good 2.51 · good 31.40 · out of range Good
Sat 16:00 0.18 · good 2.20 · good 31.40 · out of range Good
Sat 17:00 0.18 · good 3.35 · good 31.30 · out of range Good
Sat 18:00 0.18 · good 3.05 · good 31.30 · out of range Good
Sat 19:00 0.18 · good 0.68 · good 31.20 · out of range Poor
Sat 20:00 0.18 · good 0.10 · good 31.10 · out of range Poor
Sat 21:00 0.18 · good 1.04 · good 31.10 · out of range Poor
Sat 22:00 0.18 · good 0.54 · good 31.00 · out of range Poor
Sat 23:00 0.18 · good 1.10 · good 30.90 · out of range Poor
Sun 00:00 0.18 · good 1.03 · good 30.80 · out of range Poor
Sun 01:00 0.18 · good 2.41 · good 30.80 · out of range Poor
Sun 02:00 0.18 · good 2.76 · good 30.70 · out of range Poor
Sun 03:00 0.18 · good 2.33 · good 30.70 · out of range Poor
Sun 04:00 0.18 · good 2.20 · good 30.60 · out of range Poor
Sun 05:00 0.18 · good 2.28 · good 30.60 · out of range Poor
Sun 06:00 0.22 · good 3.04 · good 30.60 · out of range Poor
Sun 07:00 0.22 · good 3.49 · good 30.50 · out of range Poor
Sun 08:00 0.22 · good 3.29 · good 30.50 · out of range Good
Sun 09:00 0.22 · good 3.25 · good 30.50 · out of range Good
Sun 10:00 0.20 · good 3.18 · good 30.50 · out of range Good