SnorkelForecast.com

Perhentian Islands Snorkel Report Today

Malaysia · Updated Fri 03:25 (+08) · Source: Snapshot

The skinny

Go in the best window Report Sat 02:15

Perhentian Islands has a usable snorkeling window around Sat 08:00. The main thing to watch is sea temperature.

Score: 7.1/10

Best time: Sat 08:00

Main risk: Sea Temperature

Best morning signal: Sat 08:00 (Good).

Best afternoon signal: Sat 17:00 (Good). Peak afternoon wind is about 4.2 m/s.

Email me when it is good

Sunrise

07:03

Sunset

19:27

Water

31.5°C

Max air

28.2°C

Sky

Cloudy

98% cloud

Good window is available today

Next safe window: Sat 00:00–01:00 (32% of next 72h are suitable)

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

Next safe window starts at Sat 00:00 until 01:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (56 hours)
  • Tide/current (45 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: Fri 23:00

Fri 23:00, Sat 23:00, Mon 00:00

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

Tue 18:00 – Fri 18:00 (+08)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.73 around Wed 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.

24/24 sampled hours stay at or below 0.36m (range 0.14m to 0.16m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.2 to 4.0m/s).

Tides range from 0.15m to 1.04m; 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
excellent ✅ Excellent
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
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
excellent ✅ Excellent
good 🌟 Good
good 🌟 Good
excellent ✅ Excellent
excellent ✅ Excellent
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
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
excellent ✅ Excellent
excellent ✅ Excellent
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
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
Tue 18:00 0.14 · good 2.02 · good 31.20 · out of range poor
Tue 19:00 0.14 · good 1.85 · good 31.10 · out of range poor
Tue 20:00 0.16 · good 1.40 · good 31.10 · out of range poor
Tue 21:00 0.16 · good 1.22 · good 31.10 · out of range poor
Tue 22:00 0.16 · good 0.63 · good 31.00 · out of range poor
Tue 23:00 0.14 · good 0.72 · good 31.00 · out of range poor
Wed 00:00 0.14 · good 1.31 · good 31.00 · out of range excellent
Wed 01:00 0.14 · good 1.76 · good 31.10 · out of range good
Wed 02:00 0.14 · good 0.61 · good 31.20 · out of range good
Wed 03:00 0.14 · good 0.20 · good 31.30 · out of range good
Wed 04:00 0.14 · good 1.11 · good 31.40 · out of range good
Wed 05:00 0.14 · good 1.45 · good 31.50 · out of range good
Wed 06:00 0.14 · good 1.71 · good 31.50 · out of range good
Wed 07:00 0.14 · good 3.02 · good 31.50 · out of range good
Wed 08:00 0.14 · good 4.00 · good 31.50 · out of range good
Wed 09:00 0.14 · good 3.36 · good 31.50 · out of range good
Wed 10:00 0.14 · good 0.62 · good 31.40 · out of range good
Wed 11:00 0.14 · good 1.76 · good 31.40 · out of range good
Wed 12:00 0.14 · good 0.61 · good 31.30 · out of range poor
Wed 13:00 0.14 · good 3.62 · good 31.30 · out of range poor
Wed 14:00 0.14 · good 2.38 · good 31.20 · out of range poor
Wed 15:00 0.14 · good 2.53 · good 31.20 · out of range poor
Wed 16:00 0.14 · good 2.39 · good 31.10 · out of range poor
Wed 17:00 0.14 · good 1.98 · good 31.10 · out of range poor
Wed 18:00 0.14 · good 2.62 · good 31.00 · out of range poor
Wed 19:00 0.14 · good 2.73 · good 31.00 · out of range poor
Wed 20:00 0.14 · good 1.66 · good 31.00 · out of range poor
Wed 21:00 0.14 · good 1.28 · good 30.90 · out of range poor
Wed 22:00 0.14 · good 1.92 · good 30.90 · out of range poor
Wed 23:00 0.14 · good 2.02 · good 30.90 · out of range poor
Thu 00:00 0.14 · good 2.30 · good 30.90 · out of range good
Thu 01:00 0.14 · good 2.88 · good 31.00 · out of range good
Thu 02:00 0.14 · good 2.98 · good 31.10 · out of range good
Thu 03:00 0.14 · good 3.39 · good 31.20 · out of range good
Thu 04:00 0.14 · good 3.49 · good 31.40 · out of range good
Thu 05:00 0.14 · good 2.92 · good 31.50 · out of range good
Thu 06:00 0.14 · good 2.60 · good 31.50 · out of range excellent
Thu 07:00 0.14 · good 2.80 · good 31.50 · out of range good
Thu 08:00 0.14 · good 2.66 · good 31.50 · out of range good
Thu 09:00 0.14 · good 1.73 · good 30.90 · out of range excellent
Thu 10:00 0.14 · good 1.01 · good 30.90 · out of range excellent
Thu 11:00 0.16 · good 3.26 · good 30.90 · out of range good
Thu 12:00 0.16 · good 4.51 · good 30.90 · out of range poor
Thu 13:00 0.16 · good 4.29 · good 30.90 · out of range poor
Thu 14:00 0.16 · good 4.05 · good 30.80 · out of range poor
Thu 15:00 0.16 · good 3.00 · good 30.80 · out of range poor
Thu 16:00 0.16 · good 1.92 · good 30.80 · out of range poor
Thu 17:00 0.16 · good 1.55 · good 30.80 · out of range poor
Thu 18:00 0.16 · good 1.79 · good 30.80 · out of range poor
Thu 19:00 0.16 · good 1.82 · good 30.80 · out of range poor
Thu 20:00 0.16 · good 2.18 · good 30.70 · out of range poor
Thu 21:00 0.16 · good 1.82 · good 30.70 · out of range poor
Thu 22:00 0.16 · good 1.35 · good 30.70 · out of range poor
Thu 23:00 0.16 · good 1.83 · good 30.70 · out of range poor
Fri 00:00 0.16 · good 1.88 · good 30.70 · out of range good
Fri 01:00 0.16 · good 2.09 · good 30.70 · out of range good
Fri 02:00 0.16 · good 2.51 · good 30.80 · out of range good
Fri 03:00 0.16 · good 2.20 · good 31.00 · out of range good
Fri 04:00 0.16 · good 1.95 · good 31.10 · out of range good
Fri 05:00 0.16 · good 1.79 · good 31.20 · out of range excellent
Fri 06:00 0.16 · good 1.32 · good 31.20 · out of range excellent
Fri 07:00 0.16 · good 2.06 · good 31.20 · out of range good
Fri 08:00 0.18 · good 3.76 · good 31.20 · out of range good
Fri 09:00 0.18 · good 4.09 · good 31.20 · out of range good
Fri 10:00 0.18 · good 3.06 · good 31.20 · out of range good
Fri 11:00 0.18 · good 2.25 · good 31.20 · out of range good
Fri 12:00 0.18 · good 2.07 · good 31.10 · out of range poor
Fri 13:00 0.18 · good 1.28 · good 31.10 · out of range poor
Fri 14:00 0.20 · good 0.75 · good 31.00 · out of range poor
Fri 15:00 0.20 · good 0.72 · good 31.00 · out of range poor
Fri 16:00 0.20 · good 0.87 · good 30.90 · out of range poor
Fri 17:00 0.20 · good 1.87 · good 30.90 · out of range poor