SnorkelForecast.com

Perhentian Islands Snorkel Report Today

Malaysia · Updated Tue 04:14 (+08) · Source: Snapshot

The skinny

Go in the best window Report Tue 17:40

Perhentian Islands has a usable snorkeling window around Tue 18:00. The main thing to watch is sea temperature.

Score: 8.1/10

Best time: Tue 18:00

Main risk: Sea Temperature

No useful morning window is showing yet.

Best afternoon signal: Tue 19:00 (Good). Peak afternoon wind is about 2.7 m/s.

Email me when it is good

Sunrise

07:02

Sunset

19:27

Water

31.9°C

Max air

28.6°C

Sky

Cloudy

88% cloud

Good window is available today

Next safe window: Tue 10:00–11:00 (45% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Tuesday

✅ good conditions

Main blocker: Sea temperature

Wednesday

✅ excellent conditions

Main blocker: Sea temperature

Thursday

✅ excellent conditions

Main blocker: Sea temperature

Best available hours

Next safe window starts at Tue 10:00 until 11:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (66 hours)
  • Tide/current (43 hours)
  • Darkness (36 hours)

Jellyfish drift risk

Drift estimate from wind, swell, current and warm water.

Low · 34/100

Low peak drift risk around Wed 14:00.

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 21:00, Thu 22:00

Nearby alternatives in Malaysia

Redang Island

34 km away

✅ Good

Langkawi

328 km away

✅ Good

Tioman Island

382 km away

✅ Good

Mabul

1771 km away

✅ Good

Advanced forecast data

Viewing historical data

Wed 09:00 – Sat 09:00 (+08)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.67 around Thu 13:00; 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 0.12m to 0.18m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.4 to 3.09m/s).

Tides range from -0.29m to 1.78m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
good 🌟 Good
good 🌟 Good
good 🌟 Good
poor ❌ Limited
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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
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good 🌟 Good
good 🌟 Good
poor ❌ Limited
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good 🌟 Good
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good 🌟 Good
excellent ✅ Excellent
good 🌟 Good
good 🌟 Good
good 🌟 Good
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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Wed 09:00 0.18 · good 0.90 · good 31.90 · out of range good
Wed 10:00 0.18 · good 1.57 · good 31.80 · out of range good
Wed 11:00 0.18 · good 2.06 · good 31.80 · out of range good
Wed 12:00 0.18 · good 2.45 · good 31.80 · out of range poor
Wed 13:00 0.16 · good 1.06 · good 31.70 · out of range poor
Wed 14:00 0.16 · good 1.13 · good 31.70 · out of range poor
Wed 15:00 0.14 · good 0.71 · good 31.60 · out of range poor
Wed 16:00 0.14 · good 0.40 · good 31.50 · out of range poor
Wed 17:00 0.14 · good 0.85 · good 31.50 · out of range poor
Wed 18:00 0.14 · good 3.09 · good 31.40 · out of range poor
Wed 19:00 0.14 · good 2.93 · good 31.40 · out of range poor
Wed 20:00 0.14 · good 1.90 · good 31.30 · out of range poor
Wed 21:00 0.14 · good 2.14 · good 31.30 · out of range poor
Wed 22:00 0.14 · good 2.43 · good 31.30 · out of range poor
Wed 23:00 0.12 · good 2.62 · good 31.30 · out of range poor
Thu 00:00 0.12 · good 3.00 · good 31.30 · out of range good
Thu 01:00 0.12 · good 3.01 · good 31.40 · out of range good
Thu 02:00 0.12 · good 2.57 · good 31.50 · out of range good
Thu 03:00 0.12 · good 1.89 · good 31.70 · out of range good
Thu 04:00 0.12 · good 1.25 · good 31.80 · out of range good
Thu 05:00 0.12 · good 1.11 · good 31.90 · out of range good
Thu 06:00 0.12 · good 1.81 · good 32.00 · out of range good
Thu 07:00 0.12 · good 1.22 · good 32.00 · out of range good
Thu 08:00 0.14 · good 1.25 · good 31.90 · out of range good
Thu 09:00 0.14 · good 2.84 · good 31.90 · out of range good
Thu 10:00 0.14 · good 3.73 · good 31.80 · out of range good
Thu 11:00 0.14 · good 2.25 · good 31.70 · out of range good
Thu 12:00 0.14 · good 0.76 · good 31.70 · out of range poor
Thu 13:00 0.14 · good 2.05 · good 31.60 · out of range poor
Thu 14:00 0.16 · good 2.23 · good 31.60 · out of range poor
Thu 15:00 0.16 · good 2.96 · good 31.50 · out of range poor
Thu 16:00 0.16 · good 3.55 · good 31.40 · out of range poor
Thu 17:00 0.16 · good 2.91 · good 31.40 · out of range poor
Thu 18:00 0.16 · good 2.23 · good 31.30 · out of range poor
Thu 19:00 0.16 · good 1.58 · good 31.30 · out of range poor
Thu 20:00 0.16 · good 1.55 · good 31.20 · out of range poor
Thu 21:00 0.16 · good 1.99 · good 31.20 · out of range poor
Thu 22:00 0.16 · good 2.08 · good 31.20 · out of range poor
Thu 23:00 0.14 · good 2.14 · good 31.20 · out of range poor
Fri 00:00 0.14 · good 2.20 · good 31.20 · out of range good
Fri 01:00 0.14 · good 1.43 · good 31.20 · out of range good
Fri 02:00 0.14 · good 1.38 · good 31.30 · out of range good
Fri 03:00 0.14 · good 1.08 · good 31.40 · out of range good
Fri 04:00 0.14 · good 0.60 · good 31.50 · out of range good
Fri 05:00 0.14 · good 0.71 · good 31.60 · out of range good
Fri 06:00 0.14 · good 1.35 · good 31.60 · out of range good
Fri 07:00 0.14 · good 2.20 · good 31.60 · out of range good
Fri 08:00 0.12 · good 3.30 · good 31.60 · out of range good
Fri 09:00 0.12 · good 2.17 · good 31.60 · out of range good
Fri 10:00 0.12 · good 1.17 · good 31.50 · out of range good
Fri 11:00 0.12 · good 2.00 · good 31.50 · out of range good
Fri 12:00 0.12 · good 4.01 · good 31.40 · out of range poor
Fri 13:00 0.14 · good 2.39 · good 31.40 · out of range poor
Fri 14:00 0.16 · good 5.23 · good 31.30 · out of range poor
Fri 15:00 0.18 · good 4.59 · good 31.30 · out of range poor
Fri 16:00 0.16 · good 4.19 · good 31.20 · out of range poor
Fri 17:00 0.16 · good 4.81 · good 31.20 · out of range poor
Fri 18:00 0.14 · good 3.73 · good 31.20 · out of range poor
Fri 19:00 0.14 · good 2.73 · good 31.10 · out of range poor
Fri 20:00 0.12 · good 2.86 · good 31.10 · out of range poor
Fri 21:00 0.12 · good 2.72 · good 31.10 · out of range poor
Fri 22:00 0.12 · good 1.77 · good 31.10 · out of range poor
Fri 23:00 0.12 · good 2.05 · good 31.10 · out of range poor
Sat 00:00 0.12 · good 3.09 · good 31.10 · out of range good
Sat 01:00 0.12 · good 0.87 · good 31.10 · out of range good
Sat 02:00 0.10 · good 1.77 · good 31.20 · out of range good
Sat 03:00 0.10 · good 2.00 · good 31.40 · out of range good
Sat 04:00 0.10 · good 1.22 · good 31.50 · out of range excellent
Sat 05:00 0.10 · good 1.58 · good 31.60 · out of range good
Sat 06:00 0.10 · good 1.99 · good 31.60 · out of range good
Sat 07:00 0.10 · good 1.99 · good 31.60 · out of range good
Sat 08:00 0.10 · good 2.07 · good 31.60 · out of range excellent