SnorkelForecast.com

Rottnest Island Snorkel Report Today

Australia · Updated Tue 20:30 (AEST) · Source: Snapshot

The skinny

Marginal Report Wed 09:23

Rottnest Island looks marginal today. The least-bad daylight window is around Wed 13:00, but waves is limiting the forecast.

Score: 3.6/10

Best time: Wed 13:00

Main risk: Waves

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

Best afternoon signal: Wed 13:00 (Fair). Peak afternoon wind is about 6.7 m/s.

Email me when it is good

Sunrise

08:33

Sunset

20:01

Water

18.6°C

Max air

16.9°C

Sky

Partly cloudy

59% cloud

No good model 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

  • Wed 03:00: Fair (0.36) · still limited by waves, wind
  • Thu 00:00: Fair (0.35) · still limited by waves, sea temperature
  • Fri 08:00: Poor (0.35) · still limited by waves, sea temperature

Why this verdict

Main blockers across the next 72 hours:

  • Waves (68 hours)
  • Sea temperature (68 hours)
  • Tide/current (58 hours)

Jellyfish drift risk

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

Low · 15/100

Low peak drift risk around Wed 19:00.

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 16:00

Wed 16:00

Nearby alternatives in Australia

Esperance

629 km away

⚠️ Fair

Ningaloo - Coral Bay

1000 km away

⚠️ Fair

Ningaloo Reef

1057 km away

❌ Poor

Exmouth

1129 km away

✅ Good

Advanced forecast data

Viewing current forecast

Tue 23:00 – Fri 23:00 (AEST)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.36 around Wed 13:00; 1 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 2.36m to 2.54m).

Wind is at or below 5.4m/s in 15/24 sampled hours (range 1.17 to 6.94m/s).

Tides range from 0.04m to 0.41m; 1 of 24 hours are in or near peak slack windows.

72-hour forecast overview
Poor ❌ Limited
Poor ❌ Limited
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Fair ⚠️ Fair
Poor ❌ Limited
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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 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 2.36 · high 6.50 · high 18.60 · out of range Poor
Wed 01:00 2.38 · high 6.94 · high 18.60 · out of range Poor
Wed 02:00 2.38 · high 6.38 · high 18.60 · out of range Poor
Wed 03:00 2.40 · high 5.90 · high 18.60 · out of range Fair
Wed 04:00 2.40 · high 4.32 · good 18.60 · out of range Poor
Wed 05:00 2.42 · high 5.31 · good 18.60 · out of range Poor
Wed 06:00 2.42 · high 6.65 · high 18.60 · out of range Poor
Wed 07:00 2.44 · high 6.27 · high 18.60 · out of range Poor
Wed 08:00 2.46 · high 6.29 · high 18.60 · out of range Poor
Wed 09:00 2.48 · high 6.26 · high 18.60 · out of range Poor
Wed 10:00 2.48 · high 5.76 · high 18.60 · out of range Poor
Wed 11:00 2.50 · high 4.51 · good 18.60 · out of range Poor
Wed 12:00 2.50 · high 4.40 · good 18.60 · out of range Poor
Wed 13:00 2.48 · high 3.88 · good 18.60 · out of range Poor
Wed 14:00 2.46 · high 3.11 · good 18.60 · out of range Poor
Wed 15:00 2.44 · high 2.64 · good 18.60 · out of range Poor
Wed 16:00 2.44 · high 1.98 · good 18.60 · out of range Poor
Wed 17:00 2.44 · high 1.37 · good 18.60 · out of range Poor
Wed 18:00 2.44 · high 1.17 · good 18.60 · out of range Poor
Wed 19:00 2.46 · high 1.66 · good 18.60 · out of range Poor
Wed 20:00 2.46 · high 2.00 · good 18.60 · out of range Poor
Wed 21:00 2.48 · high 2.02 · good 18.50 · out of range Poor
Wed 22:00 2.50 · high 1.74 · good 18.50 · out of range Poor
Wed 23:00 2.54 · high 2.06 · good 18.50 · out of range Poor
Thu 00:00 2.56 · high 3.16 · good 18.50 · out of range Fair
Thu 01:00 2.60 · high 3.54 · good 18.50 · out of range Poor
Thu 02:00 2.62 · high 4.23 · good 18.60 · out of range Poor
Thu 03:00 2.66 · high 5.33 · good 18.60 · out of range Poor
Thu 04:00 2.72 · high 6.62 · high 18.60 · out of range Poor
Thu 05:00 2.76 · high 7.67 · high 18.60 · out of range Poor
Thu 06:00 2.82 · high 8.53 · high 18.60 · out of range Poor
Thu 07:00 2.88 · high 9.25 · high 18.60 · out of range Poor
Thu 08:00 2.96 · high 9.73 · high 18.60 · out of range Poor
Thu 09:00 3.02 · high 10.50 · high 18.60 · out of range Poor
Thu 10:00 3.06 · high 11.32 · high 18.60 · out of range Poor
Thu 11:00 3.12 · high 10.99 · high 18.50 · out of range Poor
Thu 12:00 3.16 · high 11.78 · high 18.50 · out of range Poor
Thu 13:00 3.18 · high 12.45 · high 18.50 · out of range Poor
Thu 14:00 3.20 · high 11.42 · high 18.50 · out of range Poor
Thu 15:00 3.22 · high 12.42 · high 18.50 · out of range Poor
Thu 16:00 3.30 · high 13.55 · high 18.50 · out of range Poor
Thu 17:00 3.36 · high 11.97 · high 18.50 · out of range Poor
Thu 18:00 3.44 · high 13.05 · high 18.50 · out of range Poor
Thu 19:00 3.48 · high 13.79 · high 18.50 · out of range Poor
Thu 20:00 3.52 · high 13.37 · high 18.50 · out of range Poor
Thu 21:00 3.56 · high 11.89 · high 18.40 · out of range Poor
Thu 22:00 3.60 · high 11.10 · high 18.40 · out of range Poor
Thu 23:00 3.62 · high 10.99 · high 18.40 · out of range Poor
Fri 00:00 3.66 · high 10.38 · high 18.40 · out of range Poor
Fri 01:00 3.70 · high 9.92 · high 18.40 · out of range Poor
Fri 02:00 3.72 · high 10.79 · high 18.50 · out of range Poor
Fri 03:00 3.76 · high 9.43 · high 18.50 · out of range Poor
Fri 04:00 3.74 · high 8.35 · high 18.50 · out of range Poor
Fri 05:00 3.72 · high 7.08 · high 18.50 · out of range Poor
Fri 06:00 3.70 · high 6.03 · high 18.50 · out of range Poor
Fri 07:00 3.70 · high 5.78 · high 18.50 · out of range Poor
Fri 08:00 3.68 · high 5.36 · good 18.50 · out of range Poor
Fri 09:00 3.68 · high 5.40 · good 18.50 · out of range Poor
Fri 10:00 3.68 · high 5.29 · good 18.50 · out of range Poor
Fri 11:00 3.70 · high 5.05 · good 18.50 · out of range Poor
Fri 12:00 3.70 · high 4.94 · good 18.50 · out of range Poor
Fri 13:00 3.68 · high 5.07 · good 18.50 · out of range Poor
Fri 14:00 3.68 · high 5.01 · good 18.50 · out of range Poor
Fri 15:00 3.66 · high 4.64 · good 18.50 · out of range Poor
Fri 16:00 3.62 · high 2.94 · good 18.40 · out of range Poor
Fri 17:00 3.58 · high 1.10 · good 18.40 · out of range Poor
Fri 18:00 3.54 · high 2.95 · good 18.40 · out of range Poor
Fri 19:00 3.46 · high 6.26 · high 18.40 · out of range Poor