SnorkelForecast.com

Rottnest Island Snorkel Report Today

Australia · Updated Tue 04:13 (AEST) · Source: Snapshot

The skinny

Marginal Report Wed 12:21

Rottnest Island looks marginal today. The least-bad daylight window is around Thu 17:00, but waves is limiting the forecast.

Score: 4.1/10

Best time: Thu 17:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Wed 13:00 (Fair). Peak afternoon wind is about 7.1 m/s.

Email me when it is good

Sunrise

09:13

Sunset

19:35

Water

19.0°C

Max air

17.0°C

Sky

Clear

4% 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

Wednesday

⚠️ fair conditions

Main blocker: Waves

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 (49 hours)
  • Sea temperature (49 hours)
  • Wind (47 hours)

Jellyfish drift risk

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

Low · 15/100

Low peak drift risk around Thu 08:00.

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 20:00

Wed 20:00, Thu 21:00

Nearby alternatives in Australia

Ningaloo - Coral Bay

1000 km away

✅ Good

Ningaloo Reef

1057 km away

✅ Good

Jervis Bay

3264 km away

❌ Poor

Whitsundays

3573 km away

❌ Poor

Advanced forecast data

Viewing historical data

Fri 02:00 – Mon 02:00 (AEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.5 around Fri 12:00; 4 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 1.42m to 1.96m).

Wind is at or below 5.4m/s in 7/24 sampled hours (range 0.54 to 9.29m/s).

Tides range from -0.08m to 0.55m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
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
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
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
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 02:00 1.96 · high 0.54 · good 19.30 · out of range fair
Fri 03:00 1.94 · high 3.38 · good 19.30 · out of range fair
Fri 04:00 1.92 · high 6.76 · high 19.30 · out of range poor
Fri 05:00 1.90 · high 7.41 · high 19.30 · out of range poor
Fri 06:00 1.88 · high 7.80 · high 19.30 · out of range poor
Fri 07:00 1.86 · high 8.65 · high 19.30 · out of range poor
Fri 08:00 1.86 · high 9.29 · high 19.30 · out of range poor
Fri 09:00 1.84 · high 8.56 · high 19.20 · out of range poor
Fri 10:00 1.82 · high 9.23 · high 19.20 · out of range poor
Fri 11:00 1.82 · high 8.91 · high 19.10 · out of range poor
Fri 12:00 1.80 · high 9.15 · high 19.10 · out of range poor
Fri 13:00 1.78 · high 8.71 · high 19.00 · out of range poor
Fri 14:00 1.76 · high 8.59 · high 19.00 · out of range poor
Fri 15:00 1.74 · high 8.55 · high 19.00 · out of range poor
Fri 16:00 1.70 · high 8.74 · high 19.00 · out of range poor
Fri 17:00 1.68 · high 8.08 · high 19.00 · out of range poor
Fri 18:00 1.64 · high 6.40 · high 19.00 · out of range poor
Fri 19:00 1.60 · high 5.71 · high 19.00 · out of range poor
Fri 20:00 1.54 · high 5.42 · high 18.90 · out of range poor
Fri 21:00 1.50 · high 5.19 · good 18.90 · out of range poor
Fri 22:00 1.48 · high 5.30 · good 18.90 · out of range poor
Fri 23:00 1.44 · high 5.02 · good 18.90 · out of range poor
Sat 00:00 1.42 · high 4.32 · good 18.90 · out of range fair
Sat 01:00 1.42 · high 4.02 · good 18.90 · out of range fair
Sat 02:00 1.44 · high 3.93 · good 19.00 · out of range fair
Sat 03:00 1.44 · high 3.09 · good 19.00 · out of range fair
Sat 04:00 1.46 · high 2.70 · good 19.00 · out of range fair
Sat 05:00 1.50 · high 3.23 · good 19.00 · out of range fair
Sat 06:00 1.52 · high 3.64 · good 19.00 · out of range fair
Sat 07:00 1.58 · high 4.40 · good 19.00 · out of range fair
Sat 08:00 1.62 · high 5.16 · good 19.00 · out of range fair
Sat 09:00 1.68 · high 5.74 · high 19.00 · out of range fair
Sat 10:00 1.72 · high 6.07 · high 19.00 · out of range poor
Sat 11:00 1.78 · high 5.79 · high 19.00 · out of range poor
Sat 12:00 1.82 · high 5.09 · good 19.00 · out of range poor
Sat 13:00 1.86 · high 5.24 · good 19.00 · out of range poor
Sat 14:00 1.88 · high 5.52 · high 19.00 · out of range poor
Sat 15:00 1.92 · high 5.60 · high 19.00 · out of range poor
Sat 16:00 1.94 · high 5.51 · high 19.00 · out of range poor
Sat 17:00 1.98 · high 5.23 · good 19.00 · out of range poor
Sat 18:00 2.00 · high 4.86 · good 19.00 · out of range poor
Sat 19:00 2.02 · high 4.95 · good 19.00 · out of range poor
Sat 20:00 2.06 · high 5.90 · high 19.00 · out of range poor
Sat 21:00 2.08 · high 6.31 · high 19.00 · out of range poor
Sat 22:00 2.08 · high 6.55 · high 19.00 · out of range poor
Sat 23:00 2.10 · high 6.49 · high 19.00 · out of range poor
Sun 00:00 2.10 · high 6.44 · high 19.00 · out of range fair
Sun 01:00 2.10 · high 6.03 · high 19.10 · out of range fair
Sun 02:00 2.12 · high 5.92 · high 19.10 · out of range fair
Sun 03:00 2.12 · high 5.71 · high 19.10 · out of range fair
Sun 04:00 2.12 · high 5.04 · good 19.20 · out of range fair
Sun 05:00 2.14 · high 3.56 · good 19.20 · out of range fair
Sun 06:00 2.14 · high 3.26 · good 19.20 · out of range fair
Sun 07:00 2.14 · high 3.15 · good 19.20 · out of range fair
Sun 08:00 2.26 · high 3.00 · good 19.50 · out of range fair
Sun 09:00 2.26 · high 2.40 · good 19.50 · out of range fair
Sun 10:00 2.26 · high 2.55 · good 19.40 · out of range poor
Sun 11:00 2.28 · high 3.35 · good 19.40 · out of range poor
Sun 12:00 2.28 · high 4.70 · good 19.40 · out of range poor
Sun 13:00 2.30 · high 4.35 · good 19.40 · out of range poor
Sun 14:00 2.30 · high 3.89 · good 19.30 · out of range poor
Sun 15:00 2.32 · high 3.51 · good 19.30 · out of range poor
Sun 16:00 2.34 · high 3.61 · good 19.30 · out of range poor
Sun 17:00 2.34 · high 3.88 · good 19.30 · out of range poor
Sun 18:00 2.36 · high 4.29 · good 19.30 · out of range poor
Sun 19:00 2.38 · high 4.57 · good 19.30 · out of range poor
Sun 20:00 2.40 · high 4.63 · good 19.30 · out of range poor
Sun 21:00 2.42 · high 4.18 · good 19.20 · out of range poor
Sun 22:00 2.44 · high 4.03 · good 19.20 · out of range poor
Sun 23:00 2.44 · high 4.34 · good 19.20 · out of range poor
Mon 00:00 2.46 · high 4.25 · good 19.20 · out of range fair
Mon 01:00 2.48 · high 4.06 · good 19.20 · out of range fair