SnorkelForecast.com

Perhentian Islands Snorkel Report Today

Malaysia · Updated Tue 04:14 (+08) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Fri 10:47

Perhentian Islands has a usable snorkeling window around Fri 11:00. The main thing to watch is sea temperature.

Score: 6.1/10

Best time: Fri 11:00

Main risk: Sea Temperature

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

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

07:03

Sunset

19:27

Water

31.8°C

Max air

27.3°C

Sky

Cloudy

90% cloud

Good window is available today

Next safe window: Fri 03:00 (100% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Friday

✅ good conditions

Main blocker: Sea temperature

Best available hours

Next safe window starts at Fri 03:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (1 hours)
  • Tide/current (1 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.

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

❌ Poor

Advanced forecast data

Viewing historical data

Sun 02:00 – Wed 02:00 (+08)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.62 around Mon 09:00; 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.

17/24 sampled hours stay at or below 0.36m (range 0.26m to 0.4m).

Wind is at or below 5.4m/s in 16/24 sampled hours (range 1.54 to 6.54m/s).

Tides range from -0.32m to 1.58m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
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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
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poor ❌ Limited
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poor ❌ Limited
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
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good 🌟 Good
fair ⚠️ Fair
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
Sun 02:00 0.28 · good 3.05 · good 31.00 · out of range good
Sun 03:00 0.28 · good 3.22 · good 31.10 · out of range good
Sun 04:00 0.28 · good 1.79 · good 31.20 · out of range good
Sun 05:00 0.28 · good 2.64 · good 31.30 · out of range fair
Sun 06:00 0.28 · good 2.05 · good 31.30 · out of range good
Sun 07:00 0.28 · good 2.73 · good 31.30 · out of range good
Sun 08:00 0.26 · good 4.62 · good 31.60 · out of range fair
Sun 09:00 0.26 · good 4.25 · good 31.60 · out of range fair
Sun 10:00 0.28 · good 4.37 · good 31.50 · out of range fair
Sun 11:00 0.28 · good 5.01 · good 31.40 · out of range fair
Sun 12:00 0.30 · good 5.77 · high 31.40 · out of range poor
Sun 13:00 0.32 · good 6.49 · high 31.30 · out of range poor
Sun 14:00 0.36 · good 6.54 · high 31.30 · out of range poor
Sun 15:00 0.38 · high 6.24 · high 31.30 · out of range poor
Sun 16:00 0.38 · high 6.44 · high 31.30 · out of range poor
Sun 17:00 0.40 · high 6.25 · high 31.20 · out of range poor
Sun 18:00 0.40 · high 5.66 · high 31.20 · out of range poor
Sun 19:00 0.40 · high 5.57 · high 31.20 · out of range poor
Sun 20:00 0.38 · high 5.19 · good 31.20 · out of range poor
Sun 21:00 0.38 · high 4.79 · good 31.20 · out of range poor
Sun 22:00 0.36 · good 3.93 · good 31.10 · out of range poor
Sun 23:00 0.36 · good 2.62 · good 31.10 · out of range poor
Mon 00:00 0.34 · good 2.55 · good 31.20 · out of range good
Mon 01:00 0.34 · good 1.54 · good 31.20 · out of range good
Mon 02:00 0.32 · good 2.40 · good 31.30 · out of range fair
Mon 03:00 0.32 · good 1.68 · good 31.50 · out of range fair
Mon 04:00 0.32 · good 2.07 · good 31.60 · out of range fair
Mon 05:00 0.30 · good 2.51 · good 31.70 · out of range fair
Mon 06:00 0.30 · good 3.76 · good 31.70 · out of range fair
Mon 07:00 0.28 · good 3.22 · good 31.70 · out of range fair
Mon 08:00 0.28 · good 4.07 · good 31.70 · out of range fair
Mon 09:00 0.26 · good 3.45 · good 31.60 · out of range fair
Mon 10:00 0.26 · good 3.05 · good 31.50 · out of range fair
Mon 11:00 0.26 · good 3.29 · good 31.40 · out of range fair
Mon 12:00 0.26 · good 0.42 · good 31.30 · out of range poor
Mon 13:00 0.26 · good 2.92 · good 31.30 · out of range poor
Mon 14:00 0.26 · good 4.43 · good 31.30 · out of range poor
Mon 15:00 0.26 · good 2.71 · good 31.20 · out of range poor
Mon 16:00 0.26 · good 1.04 · good 31.20 · out of range poor
Mon 17:00 0.26 · good 2.02 · good 31.20 · out of range poor
Mon 18:00 0.26 · good 1.82 · good 31.20 · out of range poor
Mon 19:00 0.26 · good 1.66 · good 31.20 · out of range poor
Mon 20:00 0.24 · good 1.65 · good 31.10 · out of range poor
Mon 21:00 0.24 · good 2.02 · good 31.10 · out of range poor
Mon 22:00 0.24 · good 2.56 · good 31.10 · out of range poor
Mon 23:00 0.24 · good 2.50 · good 31.10 · out of range poor
Tue 00:00 0.24 · good 3.40 · good 31.10 · out of range fair
Tue 01:00 0.24 · good 3.97 · good 31.20 · out of range good
Tue 02:00 0.24 · good 4.62 · good 31.20 · out of range good
Tue 03:00 0.24 · good 3.54 · good 31.30 · out of range good
Tue 04:00 0.24 · good 3.30 · good 31.40 · out of range good
Tue 05:00 0.24 · good 2.12 · good 31.50 · out of range fair
Tue 06:00 0.24 · good 0.90 · good 31.50 · out of range good
Tue 07:00 0.24 · good 1.99 · good 31.60 · out of range fair
Tue 08:00 0.24 · good 2.46 · good 31.60 · out of range fair
Tue 09:00 0.24 · good 1.25 · good 31.60 · out of range fair
Tue 10:00 0.24 · good 1.91 · good 31.60 · out of range fair
Tue 11:00 0.24 · good 1.97 · good 31.60 · out of range fair
Tue 12:00 0.24 · good 0.43 · good 31.60 · out of range poor
Tue 13:00 0.24 · good 2.65 · good 31.50 · out of range poor
Tue 14:00 0.24 · good 2.03 · good 31.50 · out of range poor
Tue 15:00 0.24 · good 3.12 · good 31.40 · out of range poor
Tue 16:00 0.24 · good 2.93 · good 31.30 · out of range poor
Tue 17:00 0.22 · good 4.23 · good 31.20 · out of range poor
Tue 18:00 0.22 · good 4.77 · good 31.20 · out of range poor
Tue 19:00 0.22 · good 4.17 · good 31.10 · out of range poor
Tue 20:00 0.22 · good 3.96 · good 31.10 · out of range poor
Tue 21:00 0.22 · good 1.79 · good 31.10 · out of range poor
Tue 22:00 0.22 · good 0.49 · good 31.00 · out of range poor
Tue 23:00 0.20 · good 0.21 · good 31.00 · out of range poor
Wed 00:00 0.20 · good 1.46 · good 31.10 · out of range good
Wed 01:00 0.20 · good 3.03 · good 31.10 · out of range fair