SnorkelForecast.com

Rottnest Island Snorkel Report Today

Australia · Updated Tue 18:09 (AEST) · Source: Snapshot

The skinny

Marginal Data updated Tue 18:09 (AEST)

Rottnest Island looks marginal today. The least-bad daylight window is around Tue 19:00, but waves is limiting the forecast.

Right now (forecast)

Fair · 3.9/10

Tue 18:00 (AEST)

Later today

Fair · 4.1/10

Tue 19:00 (AEST)

Next three days

Fair · 5.1/10

Thu 13:00 (AEST)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 4.1/10

Best time: Tue 19:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Tue 19:00 (Fair). Peak afternoon wind is about 5.6 m/s.

Email me when it is good

Sunrise

08:08

Sunset

20:14

Water

19.1°C

Max air

17.9°C

Sky

Clear

15% 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

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Wednesday

⚠️ Fair conditions

Main blocker: Waves

Thursday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Thu 13:00: Fair (0.51) · still limited by waves, sea temperature
  • Thu 14:00: Fair (0.50) · still limited by waves, sea temperature
  • Thu 15:00: Fair (0.47) · still limited by waves, sea temperature

Why this verdict

Main blockers across the next 72 hours:

  • Waves (71 hours)
  • Sea temperature (71 hours)
  • Tide/current (40 hours)

Jellyfish drift risk

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

Low · 14/100

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.

Upcoming high tides

Next early morning high tide: Wed 08:00

Wed 08:00, Thu 09:00, Thu 23:00, Fri 10:00

Nearby alternatives in Australia

Esperance

629 km away

❌ Poor

Ningaloo - Coral Bay

1000 km away

⚠️ Fair

Ningaloo Reef

1057 km away

⚠️ Fair

Exmouth

1129 km away

✅ Good

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 0.3 around Mon 19:00; 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 1.8m to 2.14m).

Wind is at or below 5.4m/s in 4/24 sampled hours (range 4.99 to 10.14m/s).

Tides range from -0.09m to 0.49m; 1 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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Mon 18:00 2.12 · high 5.00 · good 18.50 · out of range Poor
Mon 19:00 2.06 · high 4.99 · good 18.40 · out of range Poor
Mon 20:00 2.02 · high 5.43 · high 18.40 · out of range Poor
Mon 21:00 2.00 · high 5.22 · good 18.50 · out of range Poor
Mon 22:00 1.96 · high 5.09 · good 18.50 · out of range Poor
Mon 23:00 1.94 · high 5.72 · high 18.50 · out of range Poor
Tue 00:00 1.90 · high 6.62 · high 18.50 · out of range Poor
Tue 01:00 1.88 · high 6.70 · high 18.50 · out of range Poor
Tue 02:00 1.86 · high 7.13 · high 18.40 · out of range Poor
Tue 03:00 1.82 · high 7.07 · high 18.40 · out of range Poor
Tue 04:00 1.80 · high 6.94 · high 18.40 · out of range Poor
Tue 05:00 1.80 · high 7.12 · high 18.40 · out of range Poor
Tue 06:00 1.84 · high 7.65 · high 18.40 · out of range Poor
Tue 07:00 1.84 · high 7.96 · high 18.40 · out of range Poor
Tue 08:00 1.84 · high 7.47 · high 18.50 · out of range Poor
Tue 09:00 1.82 · high 8.32 · high 18.50 · out of range Poor
Tue 10:00 1.82 · high 8.28 · high 18.50 · out of range Poor
Tue 11:00 1.84 · high 7.74 · high 18.50 · out of range Poor
Tue 12:00 1.84 · high 8.39 · high 18.50 · out of range Poor
Tue 13:00 1.86 · high 8.27 · high 18.50 · out of range Poor
Tue 14:00 1.92 · high 9.18 · high 18.50 · out of range Poor
Tue 15:00 1.98 · high 10.14 · high 18.50 · out of range Poor
Tue 16:00 2.04 · high 8.98 · high 18.50 · out of range Poor
Tue 17:00 2.14 · high 8.60 · high 18.50 · out of range Poor
Tue 18:00 2.24 · high 8.68 · high 18.50 · out of range Poor
Tue 19:00 2.34 · high 8.99 · high 18.60 · out of range Poor
Tue 20:00 2.38 · high 9.43 · high 18.60 · out of range Poor
Tue 21:00 2.20 · high 9.90 · high 18.50 · out of range Poor
Tue 22:00 2.26 · high 9.97 · high 18.50 · out of range Poor
Tue 23:00 2.30 · high 9.87 · high 18.50 · out of range Poor
Wed 00:00 2.36 · high 9.54 · high 18.50 · out of range Poor
Wed 01:00 2.40 · high 9.90 · high 18.50 · out of range Poor
Wed 02:00 2.46 · high 8.59 · high 18.50 · out of range Poor
Wed 03:00 2.52 · high 8.17 · high 18.50 · out of range Poor
Wed 04:00 2.58 · high 8.57 · high 18.50 · out of range Poor
Wed 05:00 2.64 · high 8.64 · high 18.50 · out of range Poor
Wed 06:00 2.58 · high 8.15 · high 18.50 · out of range Poor
Wed 07:00 2.66 · high 8.78 · high 18.50 · out of range Poor
Wed 08:00 2.76 · high 9.92 · high 18.50 · out of range Poor
Wed 09:00 2.84 · high 9.42 · high 18.50 · out of range Poor
Wed 10:00 2.94 · high 9.96 · high 18.50 · out of range Poor
Wed 11:00 3.04 · high 10.46 · high 18.50 · out of range Poor
Wed 12:00 3.12 · high 10.44 · high 18.60 · out of range Poor
Wed 13:00 3.22 · high 11.40 · high 18.60 · out of range Poor
Wed 14:00 3.26 · high 11.01 · high 18.60 · out of range Poor
Wed 15:00 3.32 · high 8.45 · high 18.60 · out of range Poor
Wed 16:00 3.36 · high 4.65 · good 18.60 · out of range Poor
Wed 17:00 3.40 · high 9.75 · high 18.60 · out of range Poor
Wed 18:00 3.44 · high 11.77 · high 18.60 · out of range Poor
Wed 19:00 3.48 · high 12.29 · high 18.60 · out of range Poor
Wed 20:00 3.50 · high 13.51 · high 18.60 · out of range Poor
Wed 21:00 3.76 · high 9.82 · high 18.60 · out of range Poor
Wed 22:00 3.82 · high 10.15 · high 18.60 · out of range Poor
Wed 23:00 3.84 · high 10.51 · high 18.60 · out of range Poor
Thu 00:00 3.84 · high 10.07 · high 18.60 · out of range Poor
Thu 01:00 3.86 · high 10.32 · high 18.60 · out of range Poor
Thu 02:00 3.86 · high 11.69 · high 18.60 · out of range Poor
Thu 03:00 3.84 · high 12.11 · high 18.50 · out of range Poor
Thu 04:00 3.84 · high 14.37 · high 18.50 · out of range Poor
Thu 05:00 3.78 · high 14.78 · high 18.50 · out of range Poor
Thu 06:00 3.96 · high 15.68 · high 18.50 · out of range Poor
Thu 07:00 3.94 · high 16.08 · high 18.50 · out of range Poor
Thu 08:00 3.86 · high 15.60 · high 18.60 · out of range Poor
Thu 09:00 3.76 · high 15.00 · high 18.60 · out of range Poor
Thu 10:00 3.68 · high 14.50 · high 18.60 · out of range Poor
Thu 11:00 3.64 · high 14.36 · high 18.60 · out of range Poor
Thu 12:00 3.60 · high 14.11 · high 18.60 · out of range Poor
Thu 13:00 3.56 · high 13.35 · high 18.60 · out of range Poor
Thu 14:00 3.50 · high 12.30 · high 18.60 · out of range Poor
Thu 15:00 3.46 · high 11.75 · high 18.60 · out of range Poor
Thu 16:00 3.40 · high 10.81 · high 18.60 · out of range Poor
Thu 17:00 3.34 · high 10.78 · high 18.60 · out of range Poor