SnorkelForecast.com

Rottnest Island Snorkel Report Today

Australia · Updated Tue 04:13 (AEST) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Thu 01:35

Rottnest Island looks marginal today. The least-bad daylight window is around Thu 17:00, but waves is limiting the forecast.

Score: 4.2/10

Best time: Thu 17:00

Main risk: Waves

Best morning signal: Thu 11:00 (Fair).

Best afternoon signal: Thu 17:00 (Fair). Peak afternoon wind is about 7.8 m/s.

Email me when it is good

Sunrise

09:13

Sunset

19:35

Water

18.9°C

Max air

16.5°C

Sky

Clear

0% cloud

No safe window in the next 72 hours

Use the best-available section for the least-bad times.

3-day planner Best available Show data

3-day planner

Thursday

⚠️ fair conditions

Main blocker: Waves

Friday

❌ poor conditions

Main blocker: Waves

Best available hours

  • Thu 07:00 — Fair (0.42) · still limited by waves, sea temperature
  • Thu 06:00 — Fair (0.42) · still limited by waves, sea temperature
  • Thu 09:00 — Fair (0.42) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (36 hours)
  • Sea temperature (36 hours)
  • Tide/current (35 hours)

Jellyfish drift risk

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

Low · 15/100

Low peak drift risk around Thu 08:00.

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 20:00

Wed 20:00, Thu 21:00

Nearby alternatives in Australia

Ningaloo - Coral Bay

1000 km away

❌ Poor

Ningaloo Reef

1057 km away

❌ Poor

Jervis Bay

3264 km away

❌ Poor

Whitsundays

3573 km away

❌ Poor

Advanced forecast data

Viewing historical data

Thu 15:00 – Sun 15:00 (AEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.3 around Fri 12:00; 0 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.

0/24 sampled hours stay at or below 0.36m (range 1.86m to 2.48m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 15.5 to 27.4m/s).

Tides range from -0.04m to 0.46m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
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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
Thu 15:00 2.48 · high 18.40 · high 18.70 · out of range poor
Thu 16:00 2.44 · high 15.90 · high 18.70 · out of range poor
Thu 17:00 2.40 · high 15.50 · high 18.70 · out of range poor
Thu 18:00 2.36 · high 16.10 · high 18.70 · out of range poor
Thu 19:00 2.32 · high 16.80 · high 18.70 · out of range poor
Thu 20:00 2.28 · high 21.10 · high 18.70 · out of range poor
Thu 21:00 2.24 · high 24.10 · high 18.70 · out of range poor
Thu 22:00 2.20 · high 21.40 · high 18.70 · out of range poor
Thu 23:00 2.16 · high 22.50 · high 18.70 · out of range poor
Fri 00:00 2.12 · high 22.70 · high 18.70 · out of range poor
Fri 01:00 2.10 · high 22.30 · high 18.80 · out of range poor
Fri 02:00 2.06 · high 23.30 · high 18.80 · out of range poor
Fri 03:00 2.04 · high 20.30 · high 18.80 · out of range poor
Fri 04:00 2.02 · high 18.40 · high 18.90 · out of range poor
Fri 05:00 1.98 · high 17.40 · high 18.90 · out of range poor
Fri 06:00 1.96 · high 18.80 · high 19.00 · out of range poor
Fri 07:00 1.94 · high 21.10 · high 19.00 · out of range poor
Fri 08:00 1.92 · high 22.80 · high 19.10 · out of range poor
Fri 09:00 1.90 · high 25.90 · high 19.10 · out of range poor
Fri 10:00 1.88 · high 27.40 · high 19.20 · out of range poor
Fri 11:00 1.88 · high 26.60 · high 20.20 · out of range poor
Fri 12:00 1.88 · high 26.70 · high 20.20 · out of range poor
Fri 13:00 1.86 · high 26.00 · high 20.30 · out of range poor
Fri 14:00 1.86 · high 24.10 · high 20.30 · out of range poor
Fri 15:00 1.84 · high 24.10 · high 20.30 · out of range poor
Fri 16:00 1.82 · high 27.80 · high 20.30 · out of range poor
Fri 17:00 1.82 · high 25.80 · high 20.30 · out of range poor
Fri 18:00 1.80 · high 26.00 · high 20.30 · out of range poor
Fri 19:00 1.80 · high 27.50 · high 20.30 · out of range poor
Fri 20:00 1.80 · high 29.50 · high 20.30 · out of range poor
Fri 21:00 1.80 · high 30.70 · high 20.20 · out of range poor
Fri 22:00 1.78 · high 32.40 · high 20.20 · out of range poor
Fri 23:00 1.78 · high 32.00 · high 20.20 · out of range poor
Sat 00:00 1.76 · high 29.10 · high 20.20 · out of range poor
Sat 01:00 1.76 · high 29.00 · high 20.20 · out of range poor
Sat 02:00 1.74 · high 28.60 · high 20.20 · out of range poor
Sat 03:00 1.74 · high 26.10 · high 20.20 · out of range poor
Sat 04:00 1.72 · high 24.80 · high 20.10 · out of range poor
Sat 05:00 1.72 · high 21.90 · high 20.10 · out of range poor
Sat 06:00 1.70 · high 21.80 · high 20.10 · out of range poor
Sat 07:00 1.70 · high 22.20 · high 20.10 · out of range poor
Sat 08:00 1.68 · high 22.10 · high 20.10 · out of range poor
Sat 09:00 1.68 · high 24.20 · high 20.10 · out of range poor
Sat 10:00 1.66 · high 26.70 · high 20.10 · out of range poor
Sat 11:00 1.64 · high 24.80 · high 20.00 · out of range poor
Sat 12:00 1.62 · high 22.80 · high 20.00 · out of range poor
Sat 13:00 1.60 · high 22.90 · high 20.00 · out of range poor
Sat 14:00 1.56 · high 25.20 · high 20.00 · out of range poor
Sat 15:00 1.54 · high 27.90 · high 20.00 · out of range poor
Sat 16:00 1.54 · high 33.40 · high 20.00 · out of range poor
Sat 17:00 1.56 · high 35.80 · high 19.90 · out of range poor
Sat 18:00 1.56 · high 37.00 · high 19.90 · out of range poor
Sat 19:00 1.56 · high 38.30 · high 19.90 · out of range poor
Sat 20:00 1.58 · high 38.40 · high 19.90 · out of range poor
Sat 21:00 1.58 · high 38.10 · high 19.80 · out of range poor
Sat 22:00 1.58 · high 37.40 · high 19.80 · out of range poor
Sat 23:00 1.58 · high 37.00 · high 19.80 · out of range poor
Sun 00:00 1.58 · high 36.40 · high 19.70 · out of range poor
Sun 01:00 1.56 · high 35.50 · high 19.70 · out of range poor
Sun 02:00 1.54 · high 34.50 · high 19.70 · out of range poor
Sun 03:00 1.52 · high 33.00 · high 19.60 · out of range poor
Sun 04:00 1.50 · high 32.70 · high 19.60 · out of range poor
Sun 05:00 1.46 · high 32.30 · high 19.60 · out of range poor
Sun 06:00 1.44 · high 31.80 · high 19.50 · out of range poor
Sun 07:00 1.42 · high 24.80 · high 19.50 · out of range poor
Sun 08:00 1.38 · high 27.60 · high 19.40 · out of range poor
Sun 09:00 1.36 · high 18.80 · high 19.40 · out of range poor
Sun 10:00 1.36 · high 22.70 · high 19.40 · out of range poor
Sun 11:00 1.38 · high 13.60 · high 19.30 · out of range poor
Sun 12:00 1.38 · high 15.30 · high 19.30 · out of range poor
Sun 13:00 1.40 · high 8.60 · high 19.20 · out of range poor
Sun 14:00 1.44 · high 12.70 · high 19.20 · out of range poor