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 10:00. The main thing to watch is sea temperature.

Right now (forecast)

Fair · 5.4/10

Sat 09:00 (+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 10:00

Main risk: Sea Temperature

Best morning signal: Sat 10:00 (Good).

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

30.8°C

Max air

28.4°C

Sky

Cloudy

100% cloud

Good model window in the next 72 hours

Next good model window: Sat 10:00 (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 10:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (71 hours)
  • Tide/current (70 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 current forecast

Sat 09:00 – Tue 09:00 (+08)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.6 around Sat 16:00; 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 0.26m to 0.36m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.96 to 3.68m/s).

Tides range from 0.19m to 1.46m; 0 of 24 hours are in or near peak slack windows.

72-hour forecast overview
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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
Poor ❌ Limited
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
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
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Poor ❌ Limited
Excellent ✅ Excellent
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
Sat 10:00 0.36 · good 0.96 · good 30.80 · out of range Good
Sat 11:00 0.36 · good 2.50 · good 30.90 · out of range Fair
Sat 12:00 0.36 · good 3.11 · good 31.00 · out of range Fair
Sat 13:00 0.34 · good 3.56 · good 31.10 · out of range Fair
Sat 14:00 0.34 · good 2.47 · good 31.20 · out of range Fair
Sat 15:00 0.34 · good 2.90 · good 31.20 · out of range Fair
Sat 16:00 0.32 · good 3.10 · good 31.20 · out of range Good
Sat 17:00 0.32 · good 3.31 · good 31.10 · out of range Good
Sat 18:00 0.32 · good 2.89 · good 31.10 · out of range Good
Sat 19:00 0.30 · good 2.01 · good 31.00 · out of range Poor
Sat 20:00 0.30 · good 1.71 · good 31.00 · out of range Poor
Sat 21:00 0.30 · good 2.10 · good 30.90 · out of range Poor
Sat 22:00 0.30 · good 2.34 · good 30.90 · out of range Poor
Sat 23:00 0.30 · good 2.11 · good 30.90 · out of range Poor
Sun 00:00 0.30 · good 2.30 · good 30.80 · out of range Poor
Sun 01:00 0.28 · good 1.40 · good 30.80 · out of range Poor
Sun 02:00 0.28 · good 2.30 · good 30.80 · out of range Poor
Sun 03:00 0.28 · good 1.81 · good 30.70 · out of range Poor
Sun 04:00 0.26 · good 3.06 · good 30.70 · out of range Poor
Sun 05:00 0.26 · good 1.73 · good 30.70 · out of range Poor
Sun 06:00 0.26 · good 1.71 · good 30.60 · out of range Poor
Sun 07:00 0.26 · good 1.31 · good 30.60 · out of range Poor
Sun 08:00 0.26 · good 3.68 · good 30.60 · out of range Fair
Sun 09:00 0.26 · good 3.03 · good 30.60 · out of range Good
Sun 10:00 0.24 · good 3.00 · good 30.60 · out of range Good
Sun 11:00 0.24 · good 3.16 · good 30.60 · out of range Good
Sun 12:00 0.24 · good 4.10 · good 30.70 · out of range Good
Sun 13:00 0.22 · good 4.85 · good 30.70 · out of range Fair
Sun 14:00 0.22 · good 3.75 · good 30.70 · out of range Good
Sun 15:00 0.22 · good 3.50 · good 30.70 · out of range Good
Sun 16:00 0.22 · good 3.83 · good 30.70 · out of range Good
Sun 17:00 0.22 · good 2.96 · good 30.70 · out of range Good
Sun 18:00 0.22 · good 3.02 · good 30.70 · out of range Good
Sun 19:00 0.22 · good 1.63 · good 30.70 · out of range Poor
Sun 20:00 0.22 · good 1.30 · good 30.70 · out of range Poor
Sun 21:00 0.22 · good 3.67 · good 30.70 · out of range Poor
Sun 22:00 0.22 · good 2.84 · good 30.70 · out of range Poor
Sun 23:00 0.22 · good 3.40 · good 30.70 · out of range Poor
Mon 00:00 0.22 · good 3.14 · good 30.70 · out of range Poor
Mon 01:00 0.20 · good 2.55 · good 30.60 · out of range Poor
Mon 02:00 0.20 · good 2.57 · good 30.60 · out of range Poor
Mon 03:00 0.20 · good 3.15 · good 30.60 · out of range Poor
Mon 04:00 0.20 · good 2.80 · good 30.60 · out of range Poor
Mon 05:00 0.20 · good 1.75 · good 30.50 · out of range Poor
Mon 06:00 0.20 · good 0.51 · good 30.50 · out of range Poor
Mon 07:00 0.18 · good 0.58 · good 30.50 · out of range Poor
Mon 08:00 0.18 · good 0.52 · good 30.50 · out of range Good
Mon 09:00 0.18 · good 0.53 · good 30.60 · out of range Good
Mon 10:00 0.18 · good 0.65 · good 30.80 · out of range Good
Mon 11:00 0.18 · good 1.54 · good 31.00 · out of range Good
Mon 12:00 0.18 · good 1.60 · good 31.20 · out of range Good
Mon 13:00 0.18 · good 2.06 · good 31.30 · out of range Good
Mon 14:00 0.18 · good 3.68 · good 31.40 · out of range Good
Mon 15:00 0.18 · good 4.20 · good 31.50 · out of range Good
Mon 16:00 0.16 · good 3.68 · good 31.40 · out of range Good
Mon 17:00 0.16 · good 1.06 · good 31.40 · out of range Good
Mon 18:00 0.16 · good 1.71 · good 31.30 · out of range Good
Mon 19:00 0.16 · good 1.77 · good 31.20 · out of range Poor
Mon 20:00 0.16 · good 1.30 · good 31.20 · out of range Poor
Mon 21:00 0.16 · good 1.88 · good 31.10 · out of range Poor
Mon 22:00 0.14 · good 1.45 · good 31.10 · out of range Poor
Mon 23:00 0.14 · good 0.60 · good 31.00 · out of range Poor
Tue 00:00 0.14 · good 0.98 · good 30.90 · out of range Poor
Tue 01:00 0.14 · good 1.37 · good 30.90 · out of range Poor
Tue 02:00 0.14 · good 2.16 · good 30.80 · out of range Poor
Tue 03:00 0.14 · good 1.62 · good 30.80 · out of range Poor
Tue 04:00 0.14 · good 2.08 · good 30.70 · out of range Poor
Tue 05:00 0.14 · good 2.82 · good 30.70 · out of range Poor
Tue 06:00 0.14 · good 2.98 · good 30.70 · out of range Poor
Tue 07:00 0.14 · good 2.99 · good 30.70 · out of range Poor
Tue 08:00 0.14 · good 1.75 · good 30.70 · out of range Excellent