MARINE REPORT / 72 HOURS

Redang Island Snorkel Report Today

Malaysia · Updated Sun 07:34 (+08) · Source: Snapshot

The skinny

Go in the best window Data updated Sun 07:34 (+08)

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

Right now (forecast)

Poor · 0.0/10

Sun 07:00 (+08)

Later today

Good · 6.5/10

Sun 16:00 (+08)

Next three days

Good · 7.2/10

Mon 10:00 (+08)

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

Score: 6.5/10

Best time: Sun 08:00

Main risk: Sea Temperature

Best morning signal: Sun 11:00 (Good).

Best afternoon signal: Sun 16:00 (Good). Peak afternoon wind is about 4.2 m/s.

Email me when it is good

Sunrise

06:53

Sunset

18:52

Water

30.5°C

Max air

28.3°C

Sky

Cloudy

100% cloud

Good model window in the next 72 hours

Next good model window: Sun 08:00 (45% 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

✅ Good conditions

Main blocker: Sea temperature

Best available hours

The next good model window starts at Sun 08:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (71 hours)
  • Tide/current (66 hours)
  • Darkness (38 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

Mon 07:00 – Thu 07:00 (+08)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.59 around Mon 08:00; 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.

19/24 sampled hours stay at or below 0.36m (range 0.22m to 0.52m).

Wind is at or below 5.4m/s in 14/24 sampled hours (range 2.73 to 7.96m/s).

Tides range from 0.24m to 1.34m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Excellent ✅ Excellent
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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Mon 07:00 0.22 · good 4.38 · good 30.30 · good Poor
Mon 08:00 0.22 · good 3.05 · good 30.30 · good Good
Mon 09:00 0.24 · good 3.92 · good 30.30 · good Good
Mon 10:00 0.24 · good 5.04 · good 30.30 · good Fair
Mon 11:00 0.26 · good 5.19 · good 30.40 · good Fair
Mon 12:00 0.28 · good 4.37 · good 30.40 · good Fair
Mon 13:00 0.30 · good 5.59 · high 30.50 · out of range Fair
Mon 14:00 0.32 · good 6.62 · high 30.50 · out of range Fair
Mon 15:00 0.34 · good 7.43 · high 30.50 · out of range Fair
Mon 16:00 0.34 · good 7.50 · high 30.50 · out of range Fair
Mon 17:00 0.36 · good 7.94 · high 30.50 · out of range Fair
Mon 18:00 0.38 · high 7.96 · high 30.50 · out of range Fair
Mon 19:00 0.52 · high 7.37 · high 30.70 · out of range Fair
Mon 20:00 0.48 · high 4.77 · good 30.70 · out of range Poor
Mon 21:00 0.46 · high 2.76 · good 30.60 · out of range Poor
Mon 22:00 0.42 · high 2.73 · good 30.60 · out of range Poor
Mon 23:00 0.36 · good 5.74 · high 30.50 · out of range Poor
Tue 00:00 0.34 · good 5.76 · high 30.50 · out of range Poor
Tue 01:00 0.34 · good 4.51 · good 30.40 · good Poor
Tue 02:00 0.32 · good 2.95 · good 30.40 · good Poor
Tue 03:00 0.30 · good 3.41 · good 30.30 · good Poor
Tue 04:00 0.30 · good 4.57 · good 30.30 · good Poor
Tue 05:00 0.28 · good 5.19 · good 30.30 · good Poor
Tue 06:00 0.28 · good 5.76 · high 30.20 · good Poor
Tue 07:00 0.28 · good 5.88 · high 30.20 · good Poor
Tue 08:00 0.28 · good 6.29 · high 30.20 · good Fair
Tue 09:00 0.28 · good 6.51 · high 30.30 · good Good
Tue 10:00 0.26 · good 6.57 · high 30.30 · good Good
Tue 11:00 0.26 · good 6.75 · high 30.40 · good Good
Tue 12:00 0.24 · good 6.41 · high 30.50 · out of range Good
Tue 13:00 0.24 · good 6.33 · high 30.60 · out of range Fair
Tue 14:00 0.22 · good 6.52 · high 30.60 · out of range Good
Tue 15:00 0.24 · good 5.91 · high 30.60 · out of range Good
Tue 16:00 0.24 · good 6.91 · high 30.60 · out of range Good
Tue 17:00 0.26 · good 6.82 · high 30.60 · out of range Good
Tue 18:00 0.26 · good 6.68 · high 30.60 · out of range Good
Tue 19:00 0.28 · good 5.52 · high 30.60 · out of range Good
Tue 20:00 0.38 · high 3.16 · good 30.70 · out of range Poor
Tue 21:00 0.34 · good 2.65 · good 30.70 · out of range Poor
Tue 22:00 0.28 · good 4.72 · good 30.60 · out of range Poor
Tue 23:00 0.24 · good 4.63 · good 30.60 · out of range Poor
Wed 00:00 0.22 · good 4.08 · good 30.60 · out of range Poor
Wed 01:00 0.22 · good 3.45 · good 30.50 · out of range Poor
Wed 02:00 0.20 · good 2.19 · good 30.50 · out of range Poor
Wed 03:00 0.18 · good 3.90 · good 30.40 · good Poor
Wed 04:00 0.16 · good 4.88 · good 30.40 · good Poor
Wed 05:00 0.14 · good 3.00 · good 30.30 · good Poor
Wed 06:00 0.14 · good 3.21 · good 30.30 · good Poor
Wed 07:00 0.14 · good 2.75 · good 30.30 · good Poor
Wed 08:00 0.14 · good 2.97 · good 30.30 · good Excellent
Wed 09:00 0.14 · good 2.65 · good 30.40 · good Excellent
Wed 10:00 0.12 · good 2.70 · good 30.50 · out of range Good
Wed 11:00 0.12 · good 2.84 · good 30.60 · out of range Good
Wed 12:00 0.12 · good 2.64 · good 30.80 · out of range Good
Wed 13:00 0.10 · good 2.27 · good 30.90 · out of range Excellent
Wed 14:00 0.10 · good 1.81 · good 30.90 · out of range Good
Wed 15:00 0.10 · good 1.25 · good 30.90 · out of range Excellent
Wed 16:00 0.10 · good 1.60 · good 30.90 · out of range Excellent
Wed 17:00 0.10 · good 2.41 · good 30.90 · out of range Excellent
Wed 18:00 0.10 · good 2.75 · good 30.90 · out of range Good
Wed 19:00 0.10 · good 2.35 · good 31.10 · out of range Excellent
Wed 20:00 0.10 · good 2.99 · good 31.10 · out of range Poor
Wed 21:00 0.10 · good 2.91 · good 31.00 · out of range Poor
Wed 22:00 0.10 · good 2.62 · good 30.90 · out of range Poor
Wed 23:00 0.10 · good 2.44 · good 30.80 · out of range Poor
Thu 00:00 0.10 · good 2.39 · good 30.70 · out of range Poor
Thu 01:00 0.10 · good 1.61 · good 30.60 · out of range Poor
Thu 02:00 0.10 · good 1.57 · good 30.50 · out of range Poor
Thu 03:00 0.10 · good 1.86 · good 30.40 · good Poor
Thu 04:00 0.10 · good 1.43 · good 30.40 · good Poor
Thu 05:00 0.10 · good 1.12 · good 30.30 · good Poor
Thu 06:00 0.10 · good 1.80 · good 30.20 · good Poor