SnorkelForecast.com

Rottnest Island Snorkel Report Today

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

The skinny

Marginal Report Thu 08:43

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

Best morning signal: Thu 11:00 (Fair).

Best afternoon signal: Thu 17:00 (Fair). Peak afternoon wind is about 7.8 m/s.

Email me when it is good

Sunrise

09:13

Sunset

19:35

Water

18.8°C

Max air

16.5°C

Sky

Clear

0% 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

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 (29 hours)
  • Sea temperature (29 hours)
  • Tide/current (29 hours)

Jellyfish drift risk

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

Low · 15/100

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: Thu 21:00

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

Fri 22:00 – Mon 22:00 (AEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.0 around Sat 08:00; 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 4.0m to 5.56m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 37.0 to 55.9m/s).

Tides range from 0.34m to 0.99m; 2 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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Fri 22:00 5.56 · high 53.50 · high 19.40 · out of range poor
Fri 23:00 5.52 · high 53.60 · high 19.40 · out of range poor
Sat 00:00 5.50 · high 54.40 · high 19.40 · out of range poor
Sat 01:00 5.38 · high 55.90 · high 19.40 · out of range poor
Sat 02:00 5.28 · high 47.00 · high 19.40 · out of range poor
Sat 03:00 5.16 · high 50.40 · high 19.50 · out of range poor
Sat 04:00 5.06 · high 51.00 · high 19.50 · out of range poor
Sat 05:00 4.96 · high 54.90 · high 19.50 · out of range poor
Sat 06:00 4.86 · high 54.90 · high 19.50 · out of range poor
Sat 07:00 4.84 · high 53.80 · high 19.50 · out of range poor
Sat 08:00 4.84 · high 41.60 · high 19.50 · out of range poor
Sat 09:00 4.82 · high 44.20 · high 19.50 · out of range poor
Sat 10:00 4.80 · high 50.00 · high 19.40 · out of range poor
Sat 11:00 4.80 · high 50.40 · high 19.40 · out of range poor
Sat 12:00 4.78 · high 55.10 · high 19.40 · out of range poor
Sat 13:00 4.48 · high 46.70 · high 20.10 · out of range poor
Sat 14:00 4.46 · high 49.80 · high 20.00 · out of range poor
Sat 15:00 4.44 · high 46.90 · high 20.00 · out of range poor
Sat 16:00 4.36 · high 44.90 · high 20.00 · out of range poor
Sat 17:00 4.30 · high 39.60 · high 20.00 · out of range poor
Sat 18:00 4.22 · high 37.10 · high 20.00 · out of range poor
Sat 19:00 4.14 · high 37.00 · high 20.00 · out of range poor
Sat 20:00 4.08 · high 39.70 · high 20.00 · out of range poor
Sat 21:00 4.00 · high 39.50 · high 19.90 · out of range poor
Sat 22:00 3.96 · high 45.10 · high 19.90 · out of range poor
Sat 23:00 3.90 · high 42.60 · high 19.90 · out of range poor
Sun 00:00 3.86 · high 41.70 · high 19.90 · out of range poor
Sun 01:00 3.80 · high 36.40 · high 19.90 · out of range poor
Sun 02:00 3.72 · high 41.90 · high 19.90 · out of range poor
Sun 03:00 3.66 · high 39.40 · high 20.00 · out of range poor
Sun 04:00 3.60 · high 35.70 · high 20.00 · out of range poor
Sun 05:00 3.52 · high 37.40 · high 20.00 · out of range poor
Sun 06:00 3.46 · high 35.70 · high 20.00 · out of range poor
Sun 07:00 3.40 · high 34.40 · high 20.00 · out of range poor
Sun 08:00 3.32 · high 34.80 · high 20.00 · out of range poor
Sun 09:00 3.26 · high 32.40 · high 20.00 · out of range poor
Sun 10:00 3.20 · high 31.40 · high 19.90 · out of range poor
Sun 11:00 3.12 · high 32.10 · high 19.90 · out of range poor
Sun 12:00 3.06 · high 30.10 · high 19.90 · out of range poor
Sun 13:00 3.02 · high 31.10 · high 19.90 · out of range poor
Sun 14:00 2.96 · high 31.10 · high 19.90 · out of range poor
Sun 15:00 2.92 · high 31.90 · high 19.90 · out of range poor
Sun 16:00 2.88 · high 32.30 · high 19.90 · out of range poor
Sun 17:00 2.84 · high 32.80 · high 19.90 · out of range poor
Sun 18:00 2.80 · high 31.20 · high 19.90 · out of range poor
Sun 19:00 2.76 · high 32.10 · high 19.90 · out of range poor
Sun 20:00 2.74 · high 33.80 · high 19.90 · out of range poor
Sun 21:00 2.70 · high 33.10 · high 19.90 · out of range poor
Sun 22:00 2.66 · high 34.80 · high 19.90 · out of range poor
Sun 23:00 2.60 · high 34.40 · high 19.90 · out of range poor
Mon 00:00 2.56 · high 28.60 · high 19.90 · out of range poor
Mon 01:00 2.50 · high 26.10 · high 19.90 · out of range poor
Mon 02:00 2.46 · high 28.20 · high 19.90 · out of range poor
Mon 03:00 2.40 · high 31.30 · high 19.90 · out of range poor
Mon 04:00 2.36 · high 33.00 · high 19.90 · out of range poor
Mon 05:00 2.34 · high 32.80 · high 19.90 · out of range poor
Mon 06:00 2.30 · high 29.90 · high 19.90 · out of range poor
Mon 07:00 2.30 · high 32.70 · high 19.90 · out of range poor
Mon 08:00 2.32 · high 43.20 · high 19.90 · out of range poor
Mon 09:00 2.32 · high 36.20 · high 19.90 · out of range poor
Mon 10:00 2.46 · high 41.10 · high 19.90 · out of range poor
Mon 11:00 2.58 · high 43.10 · high 19.90 · out of range poor
Mon 12:00 2.72 · high 50.90 · high 19.90 · out of range poor
Mon 13:00 2.82 · high 54.50 · high 19.90 · out of range poor
Mon 14:00 2.90 · high 57.30 · high 19.90 · out of range poor
Mon 15:00 3.00 · high 51.10 · high 19.90 · out of range poor
Mon 16:00 3.18 · high 55.40 · high 19.90 · out of range poor
Mon 17:00 3.36 · high 55.80 · high 19.90 · out of range poor
Mon 18:00 3.54 · high 55.70 · high 19.90 · out of range poor
Mon 19:00 3.66 · high 59.00 · high 19.90 · out of range poor
Mon 20:00 3.80 · high 56.10 · high 19.90 · out of range poor
Mon 21:00 3.92 · high 54.90 · high 19.80 · out of range poor