SnorkelForecast.com

Rottnest Island Snorkel Report Today

Australia · Updated Sat 05:02 (AEST) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Tue 09:31

Rottnest Island looks marginal today. The least-bad daylight window is around Tue 11:00, but waves is limiting the forecast.

Score: 4.2/10

Best time: Tue 11:00

Main risk: Waves

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

Best afternoon signal: Tue 12:00 (Fair). Peak afternoon wind is about 6.8 m/s.

Email me when it is good

Sunrise

09:14

Sunset

19:34

Water

19.0°C

Max air

15.8°C

Sky

Partly cloudy

34% 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

Tuesday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Tue 01:00 — Fair (0.42) · still limited by waves, sea temperature
  • Tue 00:00 — Fair (0.40) · still limited by waves, sea temperature
  • Tue 02:00 — Fair (0.39) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (5 hours)
  • Sea temperature (5 hours)
  • Tide/current (4 hours)

Jellyfish drift risk

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

Low · 12/100

Low drift risk now.

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 Australia

Ningaloo - Coral Bay

1000 km away

⚠️ Fair

Ningaloo Reef

1057 km away

⚠️ Fair

Jervis Bay

3264 km away

❌ Poor

Whitsundays

3573 km away

❌ Poor

Advanced forecast data

Viewing historical data

Wed 23:00 – Sat 23:00 (AEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.17 around Thu 13:00; 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 2.04m to 2.64m).

Wind is at or below 5.4m/s in 4/24 sampled hours (range 2.91 to 14.9m/s).

Tides range from 0.06m to 0.73m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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fair ⚠️ Fair
good 🌟 Good
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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
Wed 23:00 2.04 · high 9.76 · high 19.30 · out of range poor
Thu 00:00 2.08 · high 10.16 · high 19.30 · out of range poor
Thu 01:00 2.16 · high 10.77 · high 19.30 · out of range poor
Thu 02:00 2.26 · high 9.08 · high 19.30 · out of range poor
Thu 03:00 2.34 · high 8.81 · high 19.30 · out of range poor
Thu 04:00 2.44 · high 11.56 · high 19.30 · out of range poor
Thu 05:00 2.54 · high 13.10 · high 19.30 · out of range poor
Thu 06:00 2.64 · high 12.65 · high 19.30 · out of range poor
Thu 07:00 2.60 · high 14.90 · high 19.30 · out of range poor
Thu 08:00 2.58 · high 14.47 · high 19.40 · out of range poor
Thu 09:00 2.54 · high 13.35 · high 19.40 · out of range poor
Thu 10:00 2.48 · high 11.99 · high 19.40 · out of range poor
Thu 11:00 2.40 · high 5.48 · high 19.40 · out of range poor
Thu 12:00 2.34 · high 4.65 · good 19.40 · out of range poor
Thu 13:00 2.32 · high 2.91 · good 19.40 · out of range poor
Thu 14:00 2.28 · high 3.66 · good 19.40 · out of range poor
Thu 15:00 2.26 · high 5.65 · high 19.50 · out of range poor
Thu 16:00 2.26 · high 5.45 · high 19.50 · out of range poor
Thu 17:00 2.24 · high 5.15 · good 19.50 · out of range poor
Thu 18:00 2.24 · high 5.61 · high 19.50 · out of range poor
Thu 19:00 2.24 · high 6.01 · high 19.50 · out of range poor
Thu 20:00 2.26 · high 6.99 · high 19.50 · out of range poor
Thu 21:00 2.26 · high 6.97 · high 19.50 · out of range poor
Thu 22:00 2.24 · high 6.09 · high 19.50 · out of range poor
Thu 23:00 2.22 · high 4.33 · good 19.50 · out of range poor
Fri 00:00 2.20 · high 2.59 · good 19.50 · out of range fair
Fri 01:00 2.16 · high 0.73 · good 19.50 · out of range good
Fri 02:00 2.12 · high 1.39 · good 19.60 · out of range fair
Fri 03:00 2.08 · high 3.97 · good 19.60 · out of range fair
Fri 04:00 2.04 · high 5.02 · good 19.60 · out of range fair
Fri 05:00 2.02 · high 5.03 · good 19.60 · out of range fair
Fri 06:00 1.98 · high 3.79 · good 19.60 · out of range fair
Fri 07:00 2.04 · high 1.40 · good 19.60 · out of range fair
Fri 08:00 2.08 · high 1.35 · good 19.60 · out of range fair
Fri 09:00 2.14 · high 4.51 · good 19.60 · out of range poor
Fri 10:00 2.20 · high 11.22 · high 19.60 · out of range poor
Fri 11:00 2.24 · high 9.20 · high 19.60 · out of range poor
Fri 12:00 2.30 · high 11.66 · high 19.60 · out of range poor
Fri 13:00 2.34 · high 12.10 · high 19.60 · out of range poor
Fri 14:00 2.40 · high 13.06 · high 19.60 · out of range poor
Fri 15:00 2.44 · high 12.10 · high 19.60 · out of range poor
Fri 16:00 2.62 · high 11.47 · high 19.50 · out of range poor
Fri 17:00 2.78 · high 12.82 · high 19.50 · out of range poor
Fri 18:00 2.96 · high 13.47 · high 19.50 · out of range poor
Fri 19:00 3.18 · high 12.82 · high 19.50 · out of range poor
Fri 20:00 3.42 · high 12.99 · high 19.50 · out of range poor
Fri 21:00 3.64 · high 14.49 · high 19.50 · out of range poor
Fri 22:00 3.76 · high 13.52 · high 19.50 · out of range poor
Fri 23:00 3.88 · high 13.50 · high 19.40 · out of range poor
Sat 00:00 4.00 · high 13.27 · high 19.40 · out of range poor
Sat 01:00 4.10 · high 11.36 · high 19.40 · out of range poor
Sat 02:00 4.18 · high 9.92 · high 19.40 · out of range poor
Sat 03:00 4.28 · high 9.95 · high 19.40 · out of range poor
Sat 04:00 4.32 · high 9.08 · high 19.40 · out of range poor
Sat 05:00 4.34 · high 7.92 · high 19.40 · out of range poor
Sat 06:00 4.24 · high 7.91 · high 19.40 · out of range poor
Sat 07:00 4.24 · high 7.82 · high 19.40 · out of range poor
Sat 08:00 4.22 · high 7.48 · high 19.40 · out of range poor
Sat 09:00 4.22 · high 7.28 · high 19.40 · out of range poor
Sat 10:00 4.14 · high 7.31 · high 19.40 · out of range poor
Sat 11:00 4.08 · high 7.31 · high 19.40 · out of range poor
Sat 12:00 4.00 · high 6.35 · high 19.40 · out of range poor
Sat 13:00 3.90 · high 6.39 · high 19.40 · out of range poor
Sat 14:00 3.80 · high 5.92 · high 19.40 · out of range poor
Sat 15:00 3.70 · high 5.43 · high 19.40 · out of range poor
Sat 16:00 3.62 · high 5.00 · good 19.40 · out of range poor
Sat 17:00 3.52 · high 4.74 · good 19.40 · out of range poor
Sat 18:00 3.44 · high 4.99 · good 19.40 · out of range poor
Sat 19:00 3.38 · high 5.09 · good 19.40 · out of range poor
Sat 20:00 3.32 · high 5.71 · high 19.40 · out of range poor
Sat 21:00 3.26 · high 6.37 · high 19.30 · out of range poor
Sat 22:00 3.20 · high 6.84 · high 19.30 · out of range poor