MARINE REPORT / 72 HOURS

Rottnest Island Snorkel Report Today

Australia · Updated Sat 16:43 (AEST) · Source: Snapshot

The skinny

Marginal Data updated Sat 16:43 (AEST)

Rottnest Island looks marginal today. The least-bad daylight window is around Sat 20:00, but waves is limiting the forecast.

Right now (forecast)

Fair · 3.7/10

Sat 19:00 (AEST)

Later today

Poor · 2.6/10

Sat 20:00 (AEST)

Next three days

Fair · 5.2/10

Mon 14:00 (AEST)

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

Score: 2.6/10

Best time: Sat 20:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sat 20:00 (Poor). Peak afternoon wind is about 5.5 m/s.

Email me when it is good

Sunrise

07:36

Sunset

20:30

Water

19.4°C

Max air

19.6°C

Sky

Cloudy

95% 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

Saturday

❌ Poor conditions

Main blocker: Waves

Sunday

❌ Poor conditions

Main blocker: Waves

Monday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Mon 14:00: Fair (0.52) · still limited by waves, sea temperature
  • Mon 15:00: Fair (0.51) · still limited by waves, sea temperature
  • Mon 13:00: Fair (0.51) · 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 (45 hours)

Jellyfish drift risk

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

Low · 18/100

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: Mon 02:00

Mon 02:00

Nearby alternatives in Australia

Esperance

629 km away

⚠️ Fair

Ningaloo - Coral Bay

1000 km away

⚠️ Fair

Ningaloo Reef

1057 km away

⚠️ Fair

Exmouth

1129 km away

✅ Good

Advanced forecast data

Viewing current forecast

Sat 19:00 – Tue 19:00 (AEST)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.33 around Sun 18:00; 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 2.66m to 3.14m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 5.51 to 10.38m/s).

Tides range from -0.03m to 0.48m; 0 of 24 hours are in or near peak slack windows.

72-hour forecast 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
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
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
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
Sat 20:00 2.66 · high 5.51 · high 19.40 · out of range Poor
Sat 21:00 2.72 · high 6.52 · high 19.40 · out of range Poor
Sat 22:00 2.78 · high 6.80 · high 19.30 · out of range Poor
Sat 23:00 2.82 · high 6.80 · high 19.30 · out of range Poor
Sun 00:00 2.88 · high 7.99 · high 19.30 · out of range Poor
Sun 01:00 2.92 · high 8.29 · high 19.30 · out of range Poor
Sun 02:00 2.98 · high 9.82 · high 19.30 · out of range Poor
Sun 03:00 3.04 · high 10.08 · high 19.30 · out of range Poor
Sun 04:00 3.10 · high 10.38 · high 19.30 · out of range Poor
Sun 05:00 3.10 · high 8.97 · high 19.30 · out of range Poor
Sun 06:00 3.12 · high 9.30 · high 19.20 · out of range Poor
Sun 07:00 3.12 · high 8.84 · high 19.20 · out of range Poor
Sun 08:00 3.12 · high 9.24 · high 19.20 · out of range Poor
Sun 09:00 3.14 · high 9.35 · high 19.20 · out of range Poor
Sun 10:00 3.14 · high 9.67 · high 19.20 · out of range Poor
Sun 11:00 3.14 · high 9.25 · high 19.20 · out of range Poor
Sun 12:00 3.14 · high 9.38 · high 19.20 · out of range Poor
Sun 13:00 3.14 · high 8.30 · high 19.20 · out of range Poor
Sun 14:00 3.10 · high 7.73 · high 19.30 · out of range Poor
Sun 15:00 3.08 · high 7.28 · high 19.30 · out of range Poor
Sun 16:00 3.04 · high 7.23 · high 19.30 · out of range Poor
Sun 17:00 3.00 · high 8.17 · high 19.30 · out of range Poor
Sun 18:00 2.96 · high 7.79 · high 19.30 · out of range Poor
Sun 19:00 2.92 · high 7.95 · high 19.30 · out of range Poor
Sun 20:00 2.88 · high 8.11 · high 19.30 · out of range Poor
Sun 21:00 2.82 · high 7.76 · high 19.30 · out of range Poor
Sun 22:00 2.78 · high 7.18 · high 19.30 · out of range Poor
Sun 23:00 2.76 · high 6.51 · high 19.30 · out of range Poor
Mon 00:00 2.72 · high 6.05 · high 19.30 · out of range Poor
Mon 01:00 2.70 · high 5.45 · high 19.20 · out of range Poor
Mon 02:00 2.68 · high 5.65 · high 19.20 · out of range Poor
Mon 03:00 2.68 · high 5.80 · high 19.20 · out of range Poor
Mon 04:00 2.66 · high 5.33 · good 19.20 · out of range Poor
Mon 05:00 2.62 · high 5.82 · high 19.20 · out of range Poor
Mon 06:00 2.58 · high 4.53 · good 19.20 · out of range Poor
Mon 07:00 2.54 · high 3.18 · good 19.20 · out of range Poor
Mon 08:00 2.50 · high 3.44 · good 19.20 · out of range Poor
Mon 09:00 2.44 · high 2.81 · good 19.20 · out of range Poor
Mon 10:00 2.40 · high 3.22 · good 19.20 · out of range Fair
Mon 11:00 2.36 · high 2.51 · good 19.30 · out of range Fair
Mon 12:00 2.32 · high 2.33 · good 19.40 · out of range Fair
Mon 13:00 2.28 · high 1.92 · good 19.50 · out of range Fair
Mon 14:00 2.22 · high 1.64 · good 19.60 · out of range Fair
Mon 15:00 2.16 · high 1.91 · good 19.70 · out of range Fair
Mon 16:00 2.10 · high 2.80 · good 19.70 · out of range Fair
Mon 17:00 2.06 · high 3.84 · good 19.70 · out of range Fair
Mon 18:00 2.04 · high 4.23 · good 19.70 · out of range Fair
Mon 19:00 2.00 · high 5.06 · good 19.60 · out of range Fair
Mon 20:00 1.98 · high 4.94 · good 19.50 · out of range Fair
Mon 21:00 1.96 · high 5.16 · good 19.50 · out of range Poor
Mon 22:00 1.94 · high 4.59 · good 19.40 · out of range Poor
Mon 23:00 1.92 · high 4.18 · good 19.40 · out of range Poor
Tue 00:00 1.92 · high 4.75 · good 19.40 · out of range Poor
Tue 01:00 1.90 · high 4.56 · good 19.30 · out of range Poor
Tue 02:00 1.90 · high 4.14 · good 19.30 · out of range Poor
Tue 03:00 1.90 · high 4.68 · good 19.30 · out of range Poor
Tue 04:00 1.90 · high 4.17 · good 19.30 · out of range Poor
Tue 05:00 1.92 · high 3.49 · good 19.30 · out of range Poor
Tue 06:00 1.92 · high 4.05 · good 19.30 · out of range Poor
Tue 07:00 1.94 · high 4.61 · good 19.30 · out of range Poor
Tue 08:00 1.98 · high 4.44 · good 19.30 · out of range Poor
Tue 09:00 2.00 · high 3.95 · good 19.30 · out of range Poor
Tue 10:00 2.04 · high 4.25 · good 19.30 · out of range Fair
Tue 11:00 2.08 · high 4.35 · good 19.30 · out of range Fair
Tue 12:00 2.10 · high 4.28 · good 19.30 · out of range Fair
Tue 13:00 2.14 · high 4.39 · good 19.40 · out of range Fair
Tue 14:00 2.20 · high 4.95 · good 19.40 · out of range Poor
Tue 15:00 2.26 · high 5.32 · good 19.40 · out of range Poor