Can you snorkel in Rottnest Island today?

Conditions look marginal right now — no clearly safe snorkeling window is forecast in Rottnest Island over the next 72 hours. Check the hourly table for the calmest period.

What is the best time of day to snorkel in Rottnest Island?

Snorkel during daylight, ideally in the morning before the wind picks up, and around high slack tide when water is clearest and currents are weakest. SnorkelForecast scores every daylight hour in Rottnest Island so you can pick the calmest window.

What is the best tide for snorkeling?

High slack tide — within about an hour of the high-tide peak when currents are weakest — is the safest, clearest window. Strong low tides, strong tidal flow near channels or headlands, and large tidal-range days reduce score.

Rottnest Island Snorkel Report Today

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

The skinny

Marginal Report Wed 18:58

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

No useful morning window is showing yet.

Best afternoon signal: Wed 19:00 (Poor). 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

16.8°C

Sky

Partly cloudy

38% 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

❌ poor 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 (43 hours)
Sea temperature (43 hours)
Wind (41 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

⚠️ Fair

Ningaloo Reef

1057 km away

⚠️ Fair

Jervis Bay

3264 km away

❌ Poor

Whitsundays

3573 km away

❌ Poor

Advanced forecast data

Viewing historical data

Mon 08:00 – Thu 08:00 (AEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.46 around Tue 14:00; 8 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 2.46m to 2.84m).

Wind is at or below 5.4m/s in 14/24 sampled hours (range 1.74 to 16.8m/s).

Tides range from 0.08m to 0.3m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview

Mon 08:00 poor ❌ Limited

Mon 09:00 poor ❌ Limited

Mon 10:00 poor ❌ Limited

Mon 11:00 poor ❌ Limited

Mon 12:00 poor ❌ Limited

Mon 13:00 poor ❌ Limited

Mon 14:00 poor ❌ Limited

Mon 15:00 poor ❌ Limited

Mon 16:00 poor ❌ Limited

Mon 17:00 poor ❌ Limited

Mon 18:00 poor ❌ Limited

Mon 19:00 poor ❌ Limited

Mon 20:00 poor ❌ Limited

Mon 21:00 poor ❌ Limited

Mon 22:00 poor ❌ Limited

Mon 23:00 poor ❌ Limited

Tue 00:00 fair ⚠️ Fair

Tue 01:00 fair ⚠️ Fair

Tue 02:00 fair ⚠️ Fair

Tue 03:00 fair ⚠️ Fair

Tue 04:00 fair ⚠️ Fair

Tue 05:00 fair ⚠️ Fair

Tue 06:00 fair ⚠️ Fair

Tue 07:00 fair ⚠️ Fair

Tue 08:00 fair ⚠️ Fair

Tue 09:00 fair ⚠️ Fair

Tue 10:00 poor ❌ Limited

Tue 11:00 poor ❌ Limited

Tue 12:00 poor ❌ Limited

Tue 13:00 poor ❌ Limited

Tue 14:00 poor ❌ Limited

Tue 15:00 poor ❌ Limited

Tue 16:00 poor ❌ Limited

Tue 17:00 poor ❌ Limited

Tue 18:00 poor ❌ Limited

Tue 19:00 poor ❌ Limited

Tue 20:00 poor ❌ Limited

Tue 21:00 poor ❌ Limited

Tue 22:00 poor ❌ Limited

Tue 23:00 poor ❌ Limited

Wed 00:00 fair ⚠️ Fair

Wed 01:00 fair ⚠️ Fair

Wed 02:00 fair ⚠️ Fair

Wed 03:00 fair ⚠️ Fair

Wed 04:00 fair ⚠️ Fair

Wed 05:00 fair ⚠️ Fair

Wed 06:00 fair ⚠️ Fair

Wed 07:00 fair ⚠️ Fair

Wed 08:00 fair ⚠️ Fair

Wed 09:00 fair ⚠️ Fair

Wed 10:00 poor ❌ Limited

Wed 11:00 poor ❌ Limited

Wed 12:00 poor ❌ Limited

Wed 13:00 poor ❌ Limited

Wed 14:00 poor ❌ Limited

Wed 15:00 poor ❌ Limited

Wed 16:00 poor ❌ Limited

Wed 17:00 poor ❌ Limited

Wed 18:00 poor ❌ Limited

Wed 19:00 poor ❌ Limited

Wed 20:00 poor ❌ Limited

Wed 21:00 poor ❌ Limited

Wed 22:00 poor ❌ Limited

Wed 23:00 poor ❌ Limited

Thu 00:00 fair ⚠️ Fair

Thu 01:00 fair ⚠️ Fair

Thu 02:00 poor ❌ Limited

Thu 03:00 poor ❌ Limited

Thu 04:00 poor ❌ Limited

Thu 05:00 poor ❌ Limited

Thu 06:00 poor ❌ Limited

Thu 07:00 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 and safety gate (outside daylight scores lower).

Detailed hourly data table

Time	Wave (m)	Wind (m/s)	Sea temp (°C)	Status
Mon 08:00	2.60 · high	13.30 · high	19.00 · out of range	poor
Mon 09:00	2.64 · high	16.80 · high	19.00 · out of range	poor
Mon 10:00	2.46 · high	4.91 · good	18.90 · out of range	poor
Mon 11:00	2.54 · high	4.84 · good	18.90 · out of range	poor
Mon 12:00	2.60 · high	5.87 · high	18.90 · out of range	poor
Mon 13:00	2.64 · high	6.67 · high	18.90 · out of range	poor
Mon 14:00	2.68 · high	6.77 · high	18.90 · out of range	poor
Mon 15:00	2.72 · high	6.70 · high	18.90 · out of range	poor
Mon 16:00	2.74 · high	6.38 · high	18.90 · out of range	poor
Mon 17:00	2.78 · high	6.14 · high	18.90 · out of range	poor
Mon 18:00	2.80 · high	5.80 · high	18.90 · out of range	poor
Mon 19:00	2.82 · high	5.58 · high	18.90 · out of range	poor
Mon 20:00	2.82 · high	5.05 · good	19.00 · out of range	poor
Mon 21:00	2.84 · high	4.41 · good	19.00 · out of range	poor
Mon 22:00	2.84 · high	4.00 · good	19.00 · out of range	poor
Mon 23:00	2.84 · high	3.83 · good	19.00 · out of range	poor
Tue 00:00	2.84 · high	3.74 · good	19.10 · out of range	fair
Tue 01:00	2.82 · high	3.48 · good	19.10 · out of range	fair
Tue 02:00	2.82 · high	3.15 · good	19.20 · out of range	fair
Tue 03:00	2.80 · high	2.51 · good	19.30 · out of range	fair
Tue 04:00	2.78 · high	1.74 · good	19.40 · out of range	fair
Tue 05:00	2.74 · high	1.91 · good	19.50 · out of range	fair
Tue 06:00	2.72 · high	2.88 · good	19.50 · out of range	fair
Tue 07:00	2.68 · high	3.84 · good	19.60 · out of range	fair
Tue 08:00	2.64 · high	4.52 · good	19.60 · out of range	fair
Tue 09:00	2.60 · high	5.03 · good	19.60 · out of range	fair
Tue 10:00	2.56 · high	5.37 · good	19.70 · out of range	poor
Tue 11:00	2.52 · high	5.96 · high	19.70 · out of range	poor
Tue 12:00	2.48 · high	6.30 · high	19.70 · out of range	poor
Tue 13:00	2.42 · high	5.55 · high	19.80 · out of range	poor
Tue 14:00	2.38 · high	4.85 · good	19.80 · out of range	poor
Tue 15:00	2.32 · high	3.96 · good	19.80 · out of range	poor
Tue 16:00	2.26 · high	3.57 · good	19.80 · out of range	poor
Tue 17:00	2.22 · high	4.32 · good	19.90 · out of range	poor
Tue 18:00	2.16 · high	4.35 · good	19.90 · out of range	poor
Tue 19:00	2.14 · high	4.29 · good	19.90 · out of range	poor
Tue 20:00	2.10 · high	4.39 · good	19.90 · out of range	poor
Tue 21:00	2.08 · high	4.74 · good	19.90 · out of range	poor
Tue 22:00	2.08 · high	4.66 · good	19.90 · out of range	poor
Tue 23:00	2.06 · high	5.23 · good	19.90 · out of range	poor
Wed 00:00	2.06 · high	5.27 · good	19.90 · out of range	fair
Wed 01:00	2.08 · high	5.40 · good	19.90 · out of range	fair
Wed 02:00	2.12 · high	5.48 · high	20.00 · out of range	fair
Wed 03:00	2.14 · high	4.89 · good	20.00 · out of range	fair
Wed 04:00	2.20 · high	4.17 · good	20.00 · out of range	fair
Wed 05:00	2.26 · high	3.93 · good	20.10 · out of range	fair
Wed 06:00	2.32 · high	3.68 · good	20.10 · out of range	fair
Wed 07:00	2.38 · high	3.11 · good	20.10 · out of range	fair
Wed 08:00	2.42 · high	2.46 · good	20.10 · out of range	fair
Wed 09:00	2.48 · high	2.02 · good	20.10 · out of range	fair
Wed 10:00	2.50 · high	1.71 · good	20.10 · out of range	poor
Wed 11:00	2.54 · high	1.38 · good	20.00 · out of range	poor
Wed 12:00	2.56 · high	1.27 · good	20.00 · out of range	poor
Wed 13:00	2.56 · high	0.97 · good	20.00 · out of range	poor
Wed 14:00	2.58 · high	1.55 · good	20.00 · out of range	poor
Wed 15:00	2.58 · high	2.76 · good	20.00 · out of range	poor
Wed 16:00	2.58 · high	4.13 · good	19.90 · out of range	poor
Wed 17:00	2.58 · high	4.69 · good	19.90 · out of range	poor
Wed 18:00	2.58 · high	4.86 · good	19.90 · out of range	poor
Wed 19:00	2.56 · high	4.80 · good	19.80 · out of range	poor
Wed 20:00	2.56 · high	5.18 · good	19.80 · out of range	poor
Wed 21:00	2.54 · high	5.41 · high	19.80 · out of range	poor
Wed 22:00	2.52 · high	5.80 · high	19.80 · out of range	poor
Wed 23:00	2.50 · high	6.30 · high	19.70 · out of range	poor
Thu 00:00	2.48 · high	6.85 · high	19.70 · out of range	fair
Thu 01:00	2.46 · high	6.61 · high	19.70 · out of range	fair
Thu 02:00	2.42 · high	6.12 · high	19.70 · out of range	poor
Thu 03:00	2.40 · high	6.10 · high	19.70 · out of range	poor
Thu 04:00	2.38 · high	7.16 · high	19.70 · out of range	poor
Thu 05:00	2.36 · high	7.10 · high	19.60 · out of range	poor
Thu 06:00	2.34 · high	8.78 · high	19.60 · out of range	poor
Thu 07:00	2.34 · high	9.92 · high	19.60 · out of range	poor