SnorkelForecast.com

Redang Island Snorkel Report Today

Malaysia · Updated Tue 04:15 (+08) · Source: Snapshot

The skinny

Go in the best window Report Wed 02:35

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

Score: 8.3/10

Best time: Wed 08:00

Main risk: Sea Temperature

Best morning signal: Wed 11:00 (Excellent).

Best afternoon signal: Wed 12:00 (Excellent). Peak afternoon wind is about 3.9 m/s.

Email me when it is good

Sunrise

07:02

Sunset

19:26

Water

31.2°C

Max air

29.2°C

Sky

Clear

18% cloud

Good window is available today

Next safe window: Wed 00:00–11:00 (49% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

✅ excellent conditions

Main blocker: Sea temperature

Thursday

✅ excellent conditions

Main blocker: Sea temperature

Friday

✅ good conditions

Main blocker: Sea temperature

Best available hours

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

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (57 hours)
  • Tide/current (44 hours)
  • Darkness (29 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: Tue 20:00

Tue 20:00, Wed 03:00, 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

✅ Good

Advanced forecast data

Viewing historical data

Mon 18:00 – Thu 18:00 (+08)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.53 around Tue 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.

2/24 sampled hours stay at or below 0.36m (range 0.36m to 0.42m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.36 to 5.35m/s).

Tides range from -0.45m to 1.79m; 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
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
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
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
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
Mon 18:00 0.38 · high 1.53 · good 31.00 · out of range poor
Mon 19:00 0.38 · high 0.68 · good 31.00 · out of range poor
Mon 20:00 0.40 · high 0.62 · good 31.00 · out of range poor
Mon 21:00 0.40 · high 0.94 · good 31.00 · out of range poor
Mon 22:00 0.40 · high 2.36 · good 30.90 · out of range poor
Mon 23:00 0.40 · high 3.07 · good 30.90 · out of range poor
Tue 00:00 0.40 · high 3.51 · good 30.90 · out of range fair
Tue 01:00 0.40 · high 4.17 · good 30.90 · out of range fair
Tue 02:00 0.40 · high 4.02 · good 31.00 · out of range fair
Tue 03:00 0.40 · high 3.58 · good 31.00 · out of range fair
Tue 04:00 0.40 · high 3.21 · good 31.10 · out of range fair
Tue 05:00 0.40 · high 2.75 · good 31.10 · out of range fair
Tue 06:00 0.40 · high 1.59 · good 31.20 · out of range fair
Tue 07:00 0.40 · high 0.36 · good 31.20 · out of range fair
Tue 08:00 0.40 · high 1.96 · good 31.20 · out of range fair
Tue 09:00 0.40 · high 2.94 · good 31.20 · out of range fair
Tue 10:00 0.40 · high 3.76 · good 31.20 · out of range fair
Tue 11:00 0.42 · high 2.85 · good 31.10 · out of range fair
Tue 12:00 0.42 · high 2.16 · good 31.10 · out of range poor
Tue 13:00 0.40 · high 3.19 · good 31.10 · out of range poor
Tue 14:00 0.40 · high 2.38 · good 31.10 · out of range poor
Tue 15:00 0.38 · high 4.11 · good 31.10 · out of range poor
Tue 16:00 0.36 · good 3.72 · good 31.00 · out of range poor
Tue 17:00 0.36 · good 5.35 · good 31.00 · out of range poor
Tue 18:00 0.34 · good 5.98 · high 31.00 · out of range poor
Tue 19:00 0.32 · good 5.91 · high 30.90 · out of range poor
Tue 20:00 0.32 · good 5.08 · good 30.90 · out of range poor
Tue 21:00 0.30 · good 3.69 · good 30.90 · out of range poor
Tue 22:00 0.30 · good 2.33 · good 30.80 · out of range poor
Tue 23:00 0.30 · good 2.26 · good 30.80 · out of range poor
Wed 00:00 0.30 · good 3.21 · good 30.80 · out of range fair
Wed 01:00 0.30 · good 3.49 · good 30.80 · out of range fair
Wed 02:00 0.28 · good 3.46 · good 30.80 · out of range fair
Wed 03:00 0.28 · good 2.24 · good 30.90 · out of range good
Wed 04:00 0.28 · good 2.11 · good 30.90 · out of range good
Wed 05:00 0.26 · good 2.47 · good 31.00 · out of range fair
Wed 06:00 0.26 · good 2.27 · good 31.00 · out of range fair
Wed 07:00 0.28 · good 2.30 · good 31.50 · out of range fair
Wed 08:00 0.26 · good 1.08 · good 31.50 · out of range good
Wed 09:00 0.26 · good 1.81 · good 31.40 · out of range fair
Wed 10:00 0.24 · good 3.75 · good 31.40 · out of range fair
Wed 11:00 0.24 · good 2.91 · good 31.40 · out of range fair
Wed 12:00 0.22 · good 2.44 · good 31.30 · out of range poor
Wed 13:00 0.22 · good 1.48 · good 31.30 · out of range poor
Wed 14:00 0.22 · good 1.31 · good 31.20 · out of range poor
Wed 15:00 0.22 · good 0.85 · good 31.20 · out of range poor
Wed 16:00 0.22 · good 1.20 · good 31.10 · out of range poor
Wed 17:00 0.20 · good 2.13 · good 31.10 · out of range poor
Wed 18:00 0.20 · good 3.35 · good 31.00 · out of range poor
Wed 19:00 0.20 · good 4.25 · good 31.00 · out of range poor
Wed 20:00 0.18 · good 4.05 · good 30.90 · out of range poor
Wed 21:00 0.18 · good 4.56 · good 30.90 · out of range poor
Wed 22:00 0.18 · good 4.96 · good 30.90 · out of range poor
Wed 23:00 0.18 · good 4.71 · good 30.90 · out of range poor
Thu 00:00 0.18 · good 4.92 · good 30.90 · out of range fair
Thu 01:00 0.18 · good 5.04 · good 30.90 · out of range fair
Thu 02:00 0.20 · good 4.10 · good 31.00 · out of range good
Thu 03:00 0.20 · good 3.23 · good 31.20 · out of range good
Thu 04:00 0.20 · good 2.65 · good 31.30 · out of range good
Thu 05:00 0.20 · good 2.17 · good 31.40 · out of range good
Thu 06:00 0.20 · good 2.30 · good 31.40 · out of range good
Thu 07:00 0.22 · good 2.98 · good 31.40 · out of range good
Thu 08:00 0.24 · good 3.29 · good 31.40 · out of range good
Thu 09:00 0.26 · good 4.72 · good 31.30 · out of range fair
Thu 10:00 0.28 · good 5.79 · high 31.30 · out of range fair
Thu 11:00 0.28 · good 4.15 · good 31.20 · out of range fair
Thu 12:00 0.30 · good 3.18 · good 31.20 · out of range poor
Thu 13:00 0.28 · good 2.37 · good 31.10 · out of range poor
Thu 14:00 0.28 · good 1.99 · good 31.10 · out of range poor
Thu 15:00 0.26 · good 2.45 · good 31.10 · out of range poor
Thu 16:00 0.26 · good 2.31 · good 31.00 · out of range poor
Thu 17:00 0.26 · good 2.55 · good 31.00 · out of range poor