SnorkelForecast.com

Rottnest Island Snorkel Report Today

Australia · Updated Tue 04:13 (AEST) · Source: Snapshot

The skinny

Marginal Report Wed 04:10

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

Score: 4.1/10

Best time: Thu 17:00

Main risk: Waves

Best morning signal: Wed 10:00 (Fair).

Best afternoon signal: Wed 13:00 (Fair). Peak afternoon wind is about 7.1 m/s.

Email me when it is good

Sunrise

09:14

Sunset

19:34

Water

19.0°C

Max air

17.0°C

Sky

Partly cloudy

39% 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

⚠️ fair 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 (57 hours)
  • Sea temperature (57 hours)
  • Wind (55 hours)

Jellyfish drift risk

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

Low · 12/100

Low peak drift risk around Wed 10:00.

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: Tue 19:00

Tue 19:00, Wed 20:00, Thu 21:00

Nearby alternatives in Australia

Ningaloo - Coral Bay

1000 km away

✅ Good

Ningaloo Reef

1057 km away

✅ Good

Jervis Bay

3264 km away

❌ Poor

Whitsundays

3573 km away

❌ Poor

Advanced forecast data

Viewing historical data

Mon 18:00 – Thu 18:00 (AEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.42 around Tue 10:00; 8 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 1.82m to 2.22m).

Wind is at or below 5.4m/s in 3/24 sampled hours (range 5.01 to 8.68m/s).

Tides range from -0.22m to 0.61m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
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poor ❌ Limited
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fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
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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
Mon 18:00 2.22 · high 7.40 · high 19.20 · out of range poor
Mon 19:00 2.20 · high 7.25 · high 19.20 · out of range poor
Mon 20:00 2.16 · high 7.15 · high 19.20 · out of range poor
Mon 21:00 2.14 · high 6.91 · high 19.20 · out of range poor
Mon 22:00 2.12 · high 6.88 · high 19.20 · out of range poor
Mon 23:00 2.10 · high 6.92 · high 19.20 · out of range poor
Tue 00:00 2.08 · high 6.95 · high 19.20 · out of range fair
Tue 01:00 2.06 · high 7.00 · high 19.20 · out of range fair
Tue 02:00 2.04 · high 7.18 · high 19.20 · out of range poor
Tue 03:00 2.02 · high 6.39 · high 19.20 · out of range poor
Tue 04:00 2.00 · high 5.82 · high 19.30 · out of range fair
Tue 05:00 1.98 · high 5.42 · high 19.30 · out of range fair
Tue 06:00 1.96 · high 5.03 · good 19.30 · out of range fair
Tue 07:00 1.94 · high 5.01 · good 19.30 · out of range fair
Tue 08:00 1.92 · high 5.37 · good 19.40 · out of range fair
Tue 09:00 1.90 · high 5.90 · high 19.40 · out of range fair
Tue 10:00 1.88 · high 6.62 · high 19.40 · out of range poor
Tue 11:00 1.88 · high 6.70 · high 19.40 · out of range poor
Tue 12:00 1.86 · high 6.61 · high 19.40 · out of range poor
Tue 13:00 1.86 · high 7.03 · high 19.40 · out of range poor
Tue 14:00 1.84 · high 7.45 · high 19.40 · out of range poor
Tue 15:00 1.84 · high 7.93 · high 19.50 · out of range poor
Tue 16:00 1.84 · high 8.22 · high 19.50 · out of range poor
Tue 17:00 1.82 · high 8.68 · high 19.50 · out of range poor
Tue 18:00 1.82 · high 9.39 · high 19.50 · out of range poor
Tue 19:00 1.82 · high 9.80 · high 19.50 · out of range poor
Tue 20:00 1.82 · high 9.80 · high 19.50 · out of range poor
Tue 21:00 1.82 · high 10.27 · high 19.50 · out of range poor
Tue 22:00 1.82 · high 10.61 · high 19.50 · out of range poor
Tue 23:00 1.80 · high 10.39 · high 19.50 · out of range poor
Wed 00:00 1.80 · high 10.45 · high 19.50 · out of range poor
Wed 01:00 1.80 · high 10.43 · high 19.50 · out of range poor
Wed 02:00 1.80 · high 10.66 · high 19.50 · out of range poor
Wed 03:00 1.80 · high 8.84 · high 19.60 · out of range poor
Wed 04:00 1.76 · high 8.25 · high 19.60 · out of range poor
Wed 05:00 1.74 · high 7.47 · high 19.60 · out of range poor
Wed 06:00 1.70 · high 7.07 · high 19.60 · out of range poor
Wed 07:00 1.88 · high 7.55 · high 19.60 · out of range poor
Wed 08:00 1.90 · high 8.31 · high 19.60 · out of range poor
Wed 09:00 1.90 · high 7.75 · high 19.60 · out of range poor
Wed 10:00 1.92 · high 7.10 · high 19.60 · out of range poor
Wed 11:00 1.92 · high 6.70 · high 19.50 · out of range poor
Wed 12:00 1.94 · high 6.93 · high 19.50 · out of range poor
Wed 13:00 1.94 · high 7.59 · high 19.50 · out of range poor
Wed 14:00 1.94 · high 7.51 · high 19.50 · out of range poor
Wed 15:00 1.94 · high 8.05 · high 19.50 · out of range poor
Wed 16:00 1.94 · high 8.72 · high 19.50 · out of range poor
Wed 17:00 1.94 · high 8.71 · high 19.40 · out of range poor
Wed 18:00 1.94 · high 8.71 · high 19.40 · out of range poor
Wed 19:00 1.96 · high 9.21 · high 19.40 · out of range poor
Wed 20:00 1.96 · high 9.31 · high 19.40 · out of range poor
Wed 21:00 1.98 · high 9.32 · high 19.40 · out of range poor
Wed 22:00 2.02 · high 9.41 · high 19.40 · out of range poor
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