SnorkelForecast.com

Rottnest Island Snorkel Report Today

Australia · Updated Fri 03:24 (AEST) · Source: Snapshot

The skinny

Marginal Report Fri 13:40

Rottnest Island looks marginal today. The least-bad daylight window is around Mon 12:00, but waves is limiting the forecast.

Score: 3.6/10

Best time: Mon 12:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Fri 16:00 (Fair). Peak afternoon wind is about 5.7 m/s.

Email me when it is good

Sunrise

09:12

Sunset

19:36

Water

19.1°C

Max air

17.3°C

Sky

Partly cloudy

41% 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

Friday

⚠️ fair conditions

Main blocker: Waves

Saturday

❌ poor conditions

Main blocker: Waves

Sunday

❌ poor conditions

Main blocker: Waves

Best available hours

  • Mon 02:00 — Fair (0.38) · still limited by waves, sea temperature
  • Mon 00:00 — Fair (0.37) · still limited by waves, wind
  • Fri 06:00 — Fair (0.36) · 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 (67 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

Sat 23:00, Sun 23:00

Nearby alternatives in Australia

Ningaloo - Coral Bay

1000 km away

✅ Good

Ningaloo Reef

1057 km away

✅ Good

Jervis Bay

3264 km away

✅ Good

Whitsundays

3573 km away

⚠️ Fair

Advanced forecast data

Viewing historical data

Thu 03:00 – Sun 03:00 (AEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.0 around Thu 13:00; 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 1.58m to 2.88m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 33.9 to 53.0m/s).

Tides range from 0.22m to 0.87m; 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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Thu 03:00 1.58 · high 38.80 · high 19.40 · out of range poor
Thu 04:00 1.58 · high 35.80 · high 19.40 · out of range poor
Thu 05:00 1.60 · high 34.40 · high 19.40 · out of range poor
Thu 06:00 1.60 · high 35.30 · high 19.40 · out of range poor
Thu 07:00 1.62 · high 35.80 · high 19.40 · out of range poor
Thu 08:00 1.66 · high 36.30 · high 19.40 · out of range poor
Thu 09:00 1.68 · high 37.30 · high 19.40 · out of range poor
Thu 10:00 1.70 · high 35.70 · high 19.40 · out of range poor
Thu 11:00 1.74 · high 35.60 · high 19.40 · out of range poor
Thu 12:00 1.76 · high 37.60 · high 19.40 · out of range poor
Thu 13:00 1.80 · high 39.50 · high 19.40 · out of range poor
Thu 14:00 1.86 · high 40.80 · high 19.40 · out of range poor
Thu 15:00 1.90 · high 43.40 · high 19.40 · out of range poor
Thu 16:00 1.98 · high 46.60 · high 19.30 · out of range poor
Thu 17:00 2.06 · high 46.90 · high 19.30 · out of range poor
Thu 18:00 2.14 · high 47.60 · high 19.30 · out of range poor
Thu 19:00 2.28 · high 52.00 · high 19.30 · out of range poor
Thu 20:00 2.44 · high 52.90 · high 19.30 · out of range poor
Thu 21:00 2.58 · high 53.00 · high 19.30 · out of range poor
Thu 22:00 2.62 · high 33.90 · high 19.30 · out of range poor
Thu 23:00 2.66 · high 39.80 · high 19.30 · out of range poor
Fri 00:00 2.70 · high 40.70 · high 19.30 · out of range poor
Fri 01:00 2.80 · high 43.00 · high 19.30 · out of range poor
Fri 02:00 2.88 · high 36.40 · high 19.30 · out of range poor
Fri 03:00 2.98 · high 36.90 · high 19.30 · out of range poor
Fri 04:00 3.04 · high 35.90 · high 19.30 · out of range poor
Fri 05:00 3.10 · high 38.50 · high 19.30 · out of range poor
Fri 06:00 3.16 · high 38.00 · high 19.30 · out of range poor
Fri 07:00 3.28 · high 39.10 · high 19.30 · out of range poor
Fri 08:00 3.38 · high 40.50 · high 19.30 · out of range poor
Fri 09:00 3.50 · high 44.80 · high 19.30 · out of range poor
Fri 10:00 3.68 · high 45.00 · high 19.30 · out of range poor
Fri 11:00 3.88 · high 44.80 · high 19.30 · out of range poor
Fri 12:00 4.06 · high 48.40 · high 19.30 · out of range poor
Fri 13:00 4.30 · high 51.20 · high 19.30 · out of range poor
Fri 14:00 4.52 · high 53.00 · high 19.30 · out of range poor
Fri 15:00 4.76 · high 50.20 · high 19.30 · out of range poor
Fri 16:00 4.92 · high 50.60 · high 19.40 · out of range poor
Fri 17:00 5.10 · high 51.40 · high 19.40 · out of range poor
Fri 18:00 5.26 · high 55.70 · high 19.40 · out of range poor
Fri 19:00 5.36 · high 56.70 · high 19.40 · out of range poor
Fri 20:00 5.48 · high 58.70 · high 19.40 · out of range poor
Fri 21:00 5.58 · high 55.50 · high 19.40 · out of range poor
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