MARINE REPORT / 72 HOURS

Flynn Reef Snorkel Report Today

Australia · Updated Tue 02:16 (AEST) · Source: Snapshot

The skinny

Go in the best window Data updated Tue 02:16 (AEST)

Flynn Reef has a usable snorkeling window around Tue 10:00. The main thing to watch is waves.

Right now (forecast)

Poor · 0.0/10

Tue 05:00 (AEST)

Later today

Good · 5.6/10

Tue 18:00 (AEST)

Next three days

Good · 6.4/10

Thu 14:00 (AEST)

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

Score: 5.6/10

Best time: Tue 10:00

Main risk: Waves

Best morning signal: Tue 11:00 (Good).

Best afternoon signal: Tue 18:00 (Good). Peak afternoon wind is about 4.8 m/s.

Email me when it is good Compare nearby spots

Best nearby spots later today

Hastings Reef 6.8/10 Good · Tue 17:00 Fitzroy Island 6.3/10 Good · Tue 12:00 Green Island 6.2/10 Good · Tue 11:00

Sunrise

05:36

Sunset

18:20

Water

27.1°C

Max air

26.4°C

Sky

Clear

14% cloud

Good model window in the next 72 hours

Next good model window: Tue 10:00–13:00 (25% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Tuesday

✅ Good conditions

Main blocker: Waves

Wednesday

✅ Good conditions

Main blocker: Waves

Thursday

✅ Good conditions

Main blocker: Waves

Best available hours

The next good model window starts at Tue 10:00 and lasts until 13:00.

Why this verdict

Main blockers across the next 72 hours:

  • Waves (68 hours)
  • Tide/current (68 hours)
  • Darkness (41 hours)

Jellyfish drift risk

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

Low · 34/100

Low drift risk now.

warm water supports seasonal jellyfish activity; 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 05:00

Tue 17:00, Wed 05:00, Wed 17:00, Thu 06:00, Thu 18:00

Nearby snorkel spot map

Compare nearby spot forecasts for later today before choosing a beach.

Hastings Reef Good · Tue 17:00 6.8/10 Fitzroy Island Good · Tue 12:00 6.3/10 Green Island Good · Tue 11:00 6.2/10 Michaelmas Cay Good · Tue 10:00 6.2/10 Moore Reef Good · Tue 12:00 6.0/10

Forecast spot map

Use the map to see where the compared spots sit. Open a card for the hourly forecast.

Hastings Reef Fitzroy Island Green Island Michaelmas Cay Moore Reef
  1. Hastings Reef
  2. Fitzroy Island
  3. Green Island
  4. Michaelmas Cay
  5. Moore Reef

This is a location diagram, not a marine chart. Check the shore and local signs in person.

Nearby alternatives in Australia

Arlington Reef

24 km away

✅ Good

Moore Reef

27 km away

✅ Good

Green Island

32 km away

✅ Good

Michaelmas Cay

34 km away

✅ Good

Advanced forecast data

Viewing historical data

Fri 05:00 – Mon 05:00 (AEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.37 around Fri 12:00; 3 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 0.82m to 0.92m).

Wind is at or below 5.4m/s in 14/24 sampled hours (range 3.87 to 6.55m/s).

Tides range from -0.24m to 1.42m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Fair ⚠️ Fair
Poor ❌ Limited
Fair ⚠️ Fair
Poor ❌ Limited
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Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
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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
Fri 05:00 0.84 · high 6.55 · high 26.70 · good Poor
Fri 06:00 0.84 · high 5.96 · high 26.70 · good Poor
Fri 07:00 0.84 · high 5.67 · high 26.70 · good Poor
Fri 08:00 0.84 · high 5.55 · high 26.70 · good Poor
Fri 09:00 0.92 · high 5.48 · high 26.70 · good Poor
Fri 10:00 0.92 · high 4.71 · good 26.80 · good Poor
Fri 11:00 0.92 · high 4.33 · good 26.90 · good Poor
Fri 12:00 0.92 · high 4.06 · good 27.00 · good Fair
Fri 13:00 0.92 · high 3.87 · good 27.10 · good Poor
Fri 14:00 0.90 · high 3.92 · good 27.30 · good Fair
Fri 15:00 0.90 · high 4.23 · good 27.40 · good Poor
Fri 16:00 0.88 · high 5.16 · good 27.40 · good Poor
Fri 17:00 0.86 · high 5.01 · good 27.40 · good Fair
Fri 18:00 0.86 · high 5.53 · high 27.40 · good Poor
Fri 19:00 0.82 · high 5.25 · good 27.10 · good Poor
Fri 20:00 0.82 · high 5.55 · high 27.00 · good Poor
Fri 21:00 0.82 · high 5.87 · high 27.00 · good Poor
Fri 22:00 0.82 · high 5.60 · high 26.90 · good Poor
Fri 23:00 0.82 · high 5.63 · high 26.90 · good Poor
Sat 00:00 0.82 · high 5.31 · good 26.90 · good Poor
Sat 01:00 0.82 · high 5.02 · good 26.80 · good Poor
Sat 02:00 0.82 · high 4.55 · good 26.80 · good Poor
Sat 03:00 0.82 · high 4.55 · good 26.80 · good Poor
Sat 04:00 0.82 · high 4.64 · good 26.80 · good Poor
Sat 05:00 0.82 · high 3.88 · good 26.80 · good Poor
Sat 06:00 0.84 · high 4.03 · good 26.90 · good Poor
Sat 07:00 0.92 · high 4.82 · good 26.90 · good Poor
Sat 08:00 0.92 · high 4.37 · good 27.00 · good Poor
Sat 09:00 0.92 · high 3.96 · good 27.00 · good Poor
Sat 10:00 0.92 · high 3.61 · good 27.10 · good Fair
Sat 11:00 0.92 · high 3.35 · good 27.20 · good Fair
Sat 12:00 0.92 · high 3.23 · good 27.30 · good Fair
Sat 13:00 0.92 · high 3.63 · good 27.40 · good Fair
Sat 14:00 0.92 · high 2.57 · good 27.50 · good Fair
Sat 15:00 0.90 · high 2.84 · good 27.60 · good Fair
Sat 16:00 0.90 · high 3.02 · good 27.70 · good Fair
Sat 17:00 0.90 · high 3.71 · good 27.60 · good Fair
Sat 18:00 0.88 · high 3.59 · good 27.60 · good Fair
Sat 19:00 0.88 · high 3.86 · good 27.50 · good Poor
Sat 20:00 0.94 · high 5.18 · good 27.40 · good Poor
Sat 21:00 0.96 · high 5.19 · good 27.30 · good Poor
Sat 22:00 0.96 · high 4.93 · good 27.20 · good Poor
Sat 23:00 0.96 · high 4.96 · good 27.10 · good Poor
Sun 00:00 0.98 · high 5.02 · good 27.00 · good Poor
Sun 01:00 0.98 · high 4.49 · good 27.00 · good Poor
Sun 02:00 0.98 · high 3.96 · good 27.00 · good Poor
Sun 03:00 0.98 · high 3.88 · good 26.90 · good Poor
Sun 04:00 0.98 · high 3.78 · good 26.90 · good Poor
Sun 05:00 0.98 · high 3.58 · good 26.90 · good Poor
Sun 06:00 0.96 · high 3.87 · good 27.00 · good Poor
Sun 07:00 0.96 · high 4.18 · good 27.00 · good Poor
Sun 08:00 0.96 · high 4.22 · good 27.00 · good Poor
Sun 09:00 0.96 · high 2.75 · good 27.10 · good Poor
Sun 10:00 0.96 · high 2.75 · good 27.20 · good Fair
Sun 11:00 0.96 · high 3.08 · good 27.30 · good Fair
Sun 12:00 0.98 · high 3.47 · good 27.40 · good Fair
Sun 13:00 0.98 · high 3.63 · good 27.50 · good Fair
Sun 14:00 0.98 · high 3.70 · good 27.60 · good Fair
Sun 15:00 0.98 · high 4.91 · good 27.70 · good Poor
Sun 16:00 0.98 · high 5.04 · good 27.80 · good Poor
Sun 17:00 1.00 · high 4.29 · good 27.70 · good Poor
Sun 18:00 1.00 · high 3.76 · good 27.70 · good Poor
Sun 19:00 1.02 · high 3.81 · good 27.60 · good Poor
Sun 20:00 1.02 · high 4.20 · good 27.40 · good Poor
Sun 21:00 0.86 · high 4.83 · good 27.10 · good Poor
Sun 22:00 0.86 · high 4.43 · good 27.10 · good Poor
Sun 23:00 0.86 · high 4.14 · good 27.00 · good Poor
Mon 00:00 0.86 · high 3.80 · good 27.00 · good Poor
Mon 01:00 0.86 · high 3.30 · good 26.90 · good Poor
Mon 02:00 0.86 · high 3.18 · good 26.90 · good Poor
Mon 03:00 0.86 · high 3.03 · good 26.90 · good Poor
Mon 04:00 0.86 · high 2.97 · good 26.90 · good Poor