SnorkelForecast.com

Perhentian Islands Snorkel Report Today

Malaysia · Updated Tue 20:32 (+08) · Source: Snapshot

The skinny

Go in the best window Report Wed 07:24

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

Score: 8.5/10

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 5.8 m/s.

Email me when it is good

Sunrise

07:02

Sunset

19:15

Water

31.2°C

Max air

29.5°C

Sky

Partly cloudy

44% cloud

Good window is available today

Next good model window: Wed 00:00–11:00 (50% of the next 72h meets the model threshold)

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

✅ Excellent conditions

Main blocker: Sea temperature

Best available hours

The next good model window starts at Wed 00:00 and lasts until 11:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (68 hours)
  • Tide/current (48 hours)
  • Darkness (32 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Wed 16:00.

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: Wed 16:00

Wed 02:00, Wed 16:00, Thu 02:00, Thu 17:00

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 current forecast

Tue 23:00 – Fri 23:00 (+08)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.85 around Wed 11:00; 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 0.18m).

Wind is at or below 5.4m/s in 22/24 sampled hours (range 0.61 to 6.68m/s).

Tides range from 0.1m to 1.0m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
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
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Wed 00:00 0.18 · good 4.61 · good 31.20 · out of range Good
Wed 01:00 0.18 · good 3.71 · good 31.30 · out of range Excellent
Wed 02:00 0.16 · good 2.65 · good 31.40 · out of range Excellent
Wed 03:00 0.16 · good 1.03 · good 31.60 · out of range Excellent
Wed 04:00 0.16 · good 1.63 · good 31.80 · out of range Excellent
Wed 05:00 0.14 · good 1.62 · good 31.90 · out of range Excellent
Wed 06:00 0.14 · good 0.61 · good 32.00 · out of range Excellent
Wed 07:00 0.14 · good 0.89 · good 32.10 · out of range Good
Wed 08:00 0.14 · good 1.57 · good 32.10 · out of range Good
Wed 09:00 0.14 · good 0.97 · good 32.00 · out of range Good
Wed 10:00 0.14 · good 2.25 · good 32.00 · out of range Good
Wed 11:00 0.14 · good 5.80 · high 31.90 · out of range Good
Wed 12:00 0.14 · good 4.20 · good 31.90 · out of range Poor
Wed 13:00 0.14 · good 3.94 · good 31.80 · out of range Poor
Wed 14:00 0.16 · good 4.55 · good 31.70 · out of range Poor
Wed 15:00 0.16 · good 4.05 · good 31.60 · out of range Poor
Wed 16:00 0.16 · good 4.45 · good 31.50 · out of range Poor
Wed 17:00 0.16 · good 4.96 · good 31.40 · out of range Poor
Wed 18:00 0.16 · good 6.68 · high 31.30 · out of range Poor
Wed 19:00 0.16 · good 4.12 · good 31.20 · out of range Poor
Wed 20:00 0.14 · good 3.00 · good 31.20 · out of range Poor
Wed 21:00 0.14 · good 1.81 · good 31.10 · out of range Poor
Wed 22:00 0.14 · good 3.23 · good 31.00 · out of range Poor
Wed 23:00 0.14 · good 2.22 · good 31.00 · out of range Poor
Thu 00:00 0.14 · good 2.99 · good 31.00 · out of range Excellent
Thu 01:00 0.14 · good 3.96 · good 31.10 · out of range Excellent
Thu 02:00 0.14 · good 3.82 · good 31.20 · out of range Excellent
Thu 03:00 0.14 · good 3.72 · good 31.40 · out of range Excellent
Thu 04:00 0.14 · good 3.37 · good 31.50 · out of range Good
Thu 05:00 0.16 · good 3.82 · good 31.70 · out of range Good
Thu 06:00 0.16 · good 4.09 · good 31.70 · out of range Good
Thu 07:00 0.16 · good 2.50 · good 31.70 · out of range Good
Thu 08:00 0.18 · good 2.78 · good 31.70 · out of range Good
Thu 09:00 0.18 · good 2.66 · good 31.60 · out of range Good
Thu 10:00 0.18 · good 4.20 · good 31.60 · out of range Good
Thu 11:00 0.20 · good 6.84 · high 31.50 · out of range Fair
Thu 12:00 0.20 · good 4.43 · good 31.40 · out of range Poor
Thu 13:00 0.20 · good 3.93 · good 31.40 · out of range Poor
Thu 14:00 0.20 · good 3.05 · good 31.30 · out of range Poor
Thu 15:00 0.20 · good 2.62 · good 31.20 · out of range Poor
Thu 16:00 0.20 · good 2.75 · good 31.10 · out of range Poor
Thu 17:00 0.22 · good 2.36 · good 31.10 · out of range Poor
Thu 18:00 0.22 · good 2.16 · good 31.00 · out of range Poor
Thu 19:00 0.22 · good 3.18 · good 31.00 · out of range Poor
Thu 20:00 0.22 · good 2.85 · good 30.90 · out of range Poor
Thu 21:00 0.22 · good 3.00 · good 30.90 · out of range Poor
Thu 22:00 0.22 · good 2.76 · good 30.80 · out of range Poor
Thu 23:00 0.22 · good 1.78 · good 30.80 · out of range Poor
Fri 00:00 0.22 · good 2.82 · good 30.80 · out of range Good
Fri 01:00 0.22 · good 4.13 · good 30.90 · out of range Fair
Fri 02:00 0.22 · good 4.07 · good 30.90 · out of range Good
Fri 03:00 0.22 · good 3.71 · good 31.00 · out of range Good
Fri 04:00 0.22 · good 2.94 · good 31.10 · out of range Good
Fri 05:00 0.22 · good 2.80 · good 31.20 · out of range Good
Fri 06:00 0.22 · good 3.64 · good 31.20 · out of range Good
Fri 07:00 0.22 · good 3.49 · good 31.20 · out of range Good
Fri 08:00 0.22 · good 2.58 · good 31.20 · out of range Good
Fri 09:00 0.22 · good 2.34 · good 31.20 · out of range Good
Fri 10:00 0.22 · good 1.06 · good 31.20 · out of range Excellent
Fri 11:00 0.22 · good 4.14 · good 31.20 · out of range Good
Fri 12:00 0.22 · good 3.18 · good 31.10 · out of range Poor
Fri 13:00 0.22 · good 2.35 · good 31.10 · out of range Poor
Fri 14:00 0.22 · good 2.11 · good 31.10 · out of range Poor
Fri 15:00 0.22 · good 1.94 · good 31.00 · out of range Poor
Fri 16:00 0.22 · good 3.01 · good 31.00 · out of range Poor
Fri 17:00 0.22 · good 2.52 · good 31.00 · out of range Poor
Fri 18:00 0.22 · good 2.80 · good 30.90 · out of range Poor
Fri 19:00 0.22 · good 2.41 · good 30.90 · out of range Poor