SnorkelForecast.com

Perhentian Islands Snorkel Report Today

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

The skinny

Go in the best window Report Sat 04:57

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

72% cloud

Good window is available today

Next safe window: Sat 00:00–01:00 (33% 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 (54 hours)
  • Tide/current (43 hours)
  • Darkness (27 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Sat 10:00.

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: 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

Sat 20:00 – Tue 20:00 (+08)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.64 around Sun 12:00; 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 0.22m).

Wind is at or below 5.4m/s in 1/24 sampled hours (range 4.8 to 22.7m/s).

Tides range from 0.12m to 1.45m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
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
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
good 🌟 Good
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
good 🌟 Good
good 🌟 Good
poor ❌ Limited
poor ❌ Limited
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
Sat 20:00 0.22 · good 22.70 · high 31.20 · out of range poor
Sat 21:00 0.20 · good 16.10 · high 31.20 · out of range poor
Sat 22:00 0.20 · good 13.10 · high 31.10 · out of range poor
Sat 23:00 0.18 · good 15.00 · high 31.10 · out of range poor
Sun 00:00 0.18 · good 13.20 · high 31.20 · out of range fair
Sun 01:00 0.16 · good 8.40 · high 31.20 · out of range fair
Sun 02:00 0.16 · good 7.00 · high 31.40 · out of range fair
Sun 03:00 0.14 · good 6.10 · high 31.50 · out of range fair
Sun 04:00 0.14 · good 4.80 · good 31.60 · out of range good
Sun 05:00 0.14 · good 8.50 · high 31.80 · out of range good
Sun 06:00 0.14 · good 10.20 · high 31.80 · out of range fair
Sun 07:00 0.14 · good 8.30 · high 31.90 · out of range fair
Sun 08:00 0.12 · good 12.10 · high 31.90 · out of range fair
Sun 09:00 0.12 · good 17.60 · high 31.80 · out of range fair
Sun 10:00 0.12 · good 18.40 · high 31.80 · out of range fair
Sun 11:00 0.12 · good 19.10 · high 31.80 · out of range fair
Sun 12:00 0.12 · good 14.10 · high 31.70 · out of range poor
Sun 13:00 0.12 · good 14.20 · high 31.70 · out of range poor
Sun 14:00 0.14 · good 18.10 · high 31.70 · out of range poor
Sun 15:00 0.14 · good 12.80 · high 31.60 · out of range poor
Sun 16:00 0.14 · good 11.80 · high 31.60 · out of range poor
Sun 17:00 0.14 · good 9.80 · high 31.50 · out of range poor
Sun 18:00 0.14 · good 10.90 · high 31.50 · out of range poor
Sun 19:00 0.14 · good 9.50 · high 31.40 · out of range poor
Sun 20:00 0.14 · good 4.70 · good 31.40 · out of range poor
Sun 21:00 0.14 · good 3.90 · good 31.30 · out of range poor
Sun 22:00 0.14 · good 6.60 · high 31.30 · out of range poor
Sun 23:00 0.12 · good 6.20 · high 31.30 · out of range poor
Mon 00:00 0.12 · good 4.30 · good 31.30 · out of range good
Mon 01:00 0.12 · good 3.60 · good 31.30 · out of range good
Mon 02:00 0.12 · good 4.00 · good 31.40 · out of range good
Mon 03:00 0.12 · good 4.40 · good 31.60 · out of range good
Mon 04:00 0.12 · good 6.00 · high 31.70 · out of range fair
Mon 05:00 0.10 · good 11.00 · high 31.80 · out of range fair
Mon 06:00 0.10 · good 10.40 · high 31.80 · out of range fair
Mon 07:00 0.10 · good 9.40 · high 31.80 · out of range fair
Mon 08:00 0.08 · good 9.00 · high 31.80 · out of range fair
Mon 09:00 0.08 · good 12.70 · high 31.70 · out of range fair
Mon 10:00 0.10 · good 4.98 · good 31.50 · out of range good
Mon 11:00 0.12 · good 5.23 · good 31.40 · out of range good
Mon 12:00 0.14 · good 5.36 · good 31.30 · out of range poor
Mon 13:00 0.16 · good 5.31 · good 31.30 · out of range poor
Mon 14:00 0.18 · good 5.33 · good 31.20 · out of range poor
Mon 15:00 0.20 · good 4.84 · good 31.20 · out of range poor
Mon 16:00 0.20 · good 5.11 · good 31.20 · out of range poor
Mon 17:00 0.22 · good 4.85 · good 31.20 · out of range poor
Mon 18:00 0.22 · good 1.72 · good 31.10 · out of range poor
Mon 19:00 0.22 · good 2.62 · good 31.10 · out of range poor
Mon 20:00 0.22 · good 3.47 · good 31.10 · out of range poor
Mon 21:00 0.22 · good 4.15 · good 31.00 · out of range poor
Mon 22:00 0.22 · good 3.97 · good 31.00 · out of range poor
Mon 23:00 0.20 · good 3.50 · good 31.00 · out of range poor
Tue 00:00 0.20 · good 3.09 · good 31.00 · out of range good
Tue 01:00 0.18 · good 2.58 · good 31.10 · out of range good
Tue 02:00 0.18 · good 2.04 · good 31.20 · out of range good
Tue 03:00 0.16 · good 1.08 · good 31.30 · out of range good
Tue 04:00 0.16 · good 1.33 · good 31.50 · out of range good
Tue 05:00 0.14 · good 2.15 · good 31.60 · out of range good
Tue 06:00 0.14 · good 2.69 · good 31.60 · out of range good
Tue 07:00 0.14 · good 1.55 · good 31.60 · out of range excellent
Tue 08:00 0.14 · good 1.70 · good 31.60 · out of range excellent
Tue 09:00 0.14 · good 1.67 · good 31.60 · out of range excellent
Tue 10:00 0.14 · good 1.81 · good 31.50 · out of range good
Tue 11:00 0.12 · good 1.01 · good 31.50 · out of range good
Tue 12:00 0.12 · good 3.20 · good 31.40 · out of range poor
Tue 13:00 0.12 · good 2.80 · good 31.40 · out of range poor
Tue 14:00 0.14 · good 2.55 · good 31.30 · out of range poor
Tue 15:00 0.14 · good 3.11 · good 31.30 · out of range poor
Tue 16:00 0.14 · good 1.48 · good 31.30 · out of range poor
Tue 17:00 0.14 · good 1.17 · good 31.20 · out of range poor
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