SnorkelForecast.com

Rottnest Island Snorkel Report Today

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

The skinny

Marginal Report Wed 20:36

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

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

09:13

Sunset

19:35

Water

18.9°C

Max air

16.4°C

Sky

Clear

19% 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

Wednesday

❌ poor conditions

Main blocker: Waves

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 (41 hours)
  • Sea temperature (41 hours)
  • Wind (39 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

Sun 10:00 – Wed 10:00 (AEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.22 around Mon 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 1.36m to 2.64m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 8.5 to 27.5m/s).

Tides range from 0.08m to 0.29m; 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
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
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
Sun 15:00 1.46 · high 9.20 · high 19.20 · out of range poor
Sun 16:00 1.50 · high 8.50 · high 19.20 · out of range poor
Sun 17:00 1.54 · high 9.10 · high 19.10 · out of range poor
Sun 18:00 1.58 · high 10.70 · high 19.10 · out of range poor
Sun 19:00 1.66 · high 13.60 · high 19.10 · out of range poor
Sun 20:00 1.74 · high 15.80 · high 19.10 · out of range poor
Sun 21:00 1.82 · high 18.70 · high 19.10 · out of range poor
Sun 22:00 1.92 · high 24.30 · high 19.00 · out of range poor
Sun 23:00 2.04 · high 27.50 · high 19.00 · out of range poor
Mon 00:00 2.14 · high 27.10 · high 19.00 · out of range poor
Mon 01:00 2.20 · high 26.10 · high 19.00 · out of range poor
Mon 02:00 2.28 · high 23.90 · high 19.00 · out of range poor
Mon 03:00 2.34 · high 23.60 · high 19.00 · out of range poor
Mon 04:00 2.40 · high 21.70 · high 19.00 · out of range poor
Mon 05:00 2.44 · high 16.80 · high 19.00 · out of range poor
Mon 06:00 2.50 · high 12.00 · high 19.00 · out of range poor
Mon 07:00 2.54 · high 11.50 · high 19.00 · out of range poor
Mon 08:00 2.60 · high 13.30 · high 19.00 · out of range poor
Mon 09:00 2.64 · high 16.80 · high 19.00 · out of range poor
Mon 10:00 2.46 · high 4.91 · good 18.90 · out of range poor
Mon 11:00 2.54 · high 4.84 · good 18.90 · out of range poor
Mon 12:00 2.60 · high 5.87 · high 18.90 · out of range poor
Mon 13:00 2.64 · high 6.67 · high 18.90 · out of range poor
Mon 14:00 2.68 · high 6.77 · high 18.90 · out of range poor
Mon 15:00 2.72 · high 6.70 · high 18.90 · out of range poor
Mon 16:00 2.74 · high 6.38 · high 18.90 · out of range poor
Mon 17:00 2.78 · high 6.14 · high 18.90 · out of range poor
Mon 18:00 2.80 · high 5.80 · high 18.90 · out of range poor
Mon 19:00 2.82 · high 5.58 · high 18.90 · out of range poor
Mon 20:00 2.82 · high 5.05 · good 19.00 · out of range poor
Mon 21:00 2.84 · high 4.41 · good 19.00 · out of range poor
Mon 22:00 2.84 · high 4.00 · good 19.00 · out of range poor
Mon 23:00 2.84 · high 3.83 · good 19.00 · out of range poor
Tue 00:00 2.84 · high 3.74 · good 19.10 · out of range fair
Tue 01:00 2.82 · high 3.48 · good 19.10 · out of range fair
Tue 02:00 2.82 · high 3.15 · good 19.20 · out of range fair
Tue 03:00 2.80 · high 2.51 · good 19.30 · out of range fair
Tue 04:00 2.78 · high 1.74 · good 19.40 · out of range fair
Tue 05:00 2.74 · high 1.91 · good 19.50 · out of range fair
Tue 06:00 2.72 · high 2.88 · good 19.50 · out of range fair
Tue 07:00 2.68 · high 3.84 · good 19.60 · out of range fair
Tue 08:00 2.64 · high 4.52 · good 19.60 · out of range fair
Tue 09:00 2.60 · high 5.03 · good 19.60 · out of range fair
Tue 10:00 2.56 · high 5.37 · good 19.70 · out of range poor
Tue 11:00 2.52 · high 5.96 · high 19.70 · out of range poor
Tue 12:00 2.48 · high 6.30 · high 19.70 · out of range poor
Tue 13:00 2.42 · high 5.55 · high 19.80 · out of range poor
Tue 14:00 2.38 · high 4.85 · good 19.80 · out of range poor
Tue 15:00 2.32 · high 3.96 · good 19.80 · out of range poor
Tue 16:00 2.26 · high 3.57 · good 19.80 · out of range poor
Tue 17:00 2.22 · high 4.32 · good 19.90 · out of range poor
Tue 18:00 2.16 · high 4.35 · good 19.90 · out of range poor
Tue 19:00 2.14 · high 4.29 · good 19.90 · out of range poor
Tue 20:00 2.10 · high 4.39 · good 19.90 · out of range poor
Tue 21:00 2.08 · high 4.74 · good 19.90 · out of range poor
Tue 22:00 2.08 · high 4.66 · good 19.90 · out of range poor
Tue 23:00 2.06 · high 5.23 · good 19.90 · out of range poor
Wed 00:00 2.06 · high 5.27 · good 19.90 · out of range fair
Wed 01:00 2.08 · high 5.40 · good 19.90 · out of range fair
Wed 02:00 2.12 · high 5.48 · high 20.00 · out of range fair
Wed 03:00 2.14 · high 4.89 · good 20.00 · out of range fair
Wed 04:00 2.20 · high 4.17 · good 20.00 · out of range fair
Wed 05:00 2.26 · high 3.93 · good 20.10 · out of range fair
Wed 06:00 2.32 · high 3.68 · good 20.10 · out of range fair
Wed 07:00 2.38 · high 3.11 · good 20.10 · out of range fair
Wed 08:00 2.42 · high 2.46 · good 20.10 · out of range fair
Wed 09:00 2.48 · high 2.02 · good 20.10 · out of range fair