MARINE REPORT / 72 HOURS

Heron Island Snorkel Report Today

Australia · Updated Sun 18:56 (AEST) · Source: Snapshot

The skinny

Poor Data updated Sun 18:56 (AEST)

Heron Island has no good model window later today. Check the three-day outlook and official beach advisories.

Right now (forecast)

Poor · 0.0/10

Sun 20:00 (AEST)

Later today

No fresh data for this period.

Next three days

Fair · 5.2/10

Wed 11:00 (AEST)

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

Score: 0.0/10

Best time: -

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good Compare nearby spots

Sunrise

05:17

Sunset

17:58

Water

23.0°C

Max air

22.6°C

Sky

Cloudy

99% cloud

No good model 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

Sunday

❌ Poor conditions

Main blocker: Waves

Monday

⚠️ Fair conditions

Main blocker: Waves

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Wed 11:00: Fair (0.52) · still limited by waves, tide/current
  • Wed 10:00: Fair (0.51) · still limited by waves
  • Wed 12:00: Fair (0.46) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (69 hours)
  • Tide/current (63 hours)
  • Wind (62 hours)

Jellyfish drift risk

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

Low · 26/100

Low peak drift risk around Sun 22:00.

water is warm enough for occasional jellyfish; 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: Tue 04:00

Mon 15:00, Tue 04:00, Tue 16:00, Wed 05:00

Nearby snorkel spot map

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

Cairns Unknown No recent score Port Douglas Unknown No recent score Lady Elliot Island Unknown No recent score Whitsundays Unknown No recent score

Forecast spot map

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

Cairns Port Douglas Lady Elliot Island Whitsundays
  1. Cairns
  2. Port Douglas
  3. Lady Elliot Island
  4. Whitsundays

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

Nearby alternatives in Australia

Lady Elliot Island

110 km away

❌ Poor

Whitsundays

462 km away

❌ Poor

Byron Bay

603 km away

❌ Poor

Flynn Reef

951 km away

❌ Poor

Advanced forecast data

Viewing historical data

Fri 20:00 – Mon 20:00 (AEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.69 around Sat 16:00; 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 0.42m to 0.96m).

Wind is at or below 5.4m/s in 11/24 sampled hours (range 1.97 to 9.04m/s).

Tides range from 0.03m to 1.08m; 2 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
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Poor ❌ Limited
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 20:00 0.96 · high 8.94 · high 21.70 · good Poor
Fri 21:00 0.94 · high 9.04 · high 21.70 · good Poor
Fri 22:00 0.92 · high 9.01 · high 21.70 · good Poor
Fri 23:00 0.88 · high 8.48 · high 21.60 · good Poor
Sat 00:00 0.86 · high 7.99 · high 21.60 · good Poor
Sat 01:00 0.82 · high 8.02 · high 21.60 · good Poor
Sat 02:00 0.80 · high 6.36 · high 21.60 · good Poor
Sat 03:00 0.74 · high 6.50 · high 21.50 · good Poor
Sat 04:00 0.70 · high 6.54 · high 21.50 · good Poor
Sat 05:00 0.68 · high 6.37 · high 21.50 · good Poor
Sat 06:00 0.68 · high 5.80 · high 21.50 · good Poor
Sat 07:00 0.66 · high 5.53 · high 21.50 · good Poor
Sat 08:00 0.64 · high 5.52 · high 21.50 · good Poor
Sat 09:00 0.60 · high 5.35 · good 21.50 · good Poor
Sat 10:00 0.58 · high 5.13 · good 21.60 · good Fair
Sat 11:00 0.56 · high 4.30 · good 21.60 · good Fair
Sat 12:00 0.54 · high 3.43 · good 21.70 · good Fair
Sat 13:00 0.52 · high 2.61 · good 21.80 · good Good
Sat 14:00 0.50 · high 1.97 · good 21.90 · good Good
Sat 15:00 0.46 · high 2.39 · good 22.00 · good Good
Sat 16:00 0.44 · high 2.99 · good 22.10 · good Good
Sat 17:00 0.44 · high 3.75 · good 22.10 · good Good
Sat 18:00 0.42 · high 4.87 · good 22.10 · good Poor
Sat 19:00 0.42 · high 4.85 · good 22.10 · good Poor
Sat 20:00 0.42 · high 5.06 · good 22.00 · good Poor
Sat 21:00 0.42 · high 4.13 · good 22.00 · good Poor
Sat 22:00 0.42 · high 3.61 · good 22.00 · good Poor
Sat 23:00 0.40 · high 3.37 · good 22.00 · good Poor
Sun 00:00 0.40 · high 3.28 · good 21.90 · good Poor
Sun 01:00 0.38 · high 2.75 · good 21.90 · good Poor
Sun 02:00 0.36 · good 2.42 · good 21.90 · good Poor
Sun 03:00 0.36 · good 2.44 · good 21.90 · good Poor
Sun 04:00 0.34 · good 2.87 · good 21.90 · good Poor
Sun 05:00 0.32 · good 3.30 · good 21.90 · good Poor
Sun 06:00 0.32 · good 3.24 · good 21.90 · good Poor
Sun 07:00 0.30 · good 3.04 · good 21.90 · good Poor
Sun 08:00 0.30 · good 3.26 · good 22.00 · good Poor
Sun 09:00 0.30 · good 3.31 · good 22.00 · good Poor
Sun 10:00 0.30 · good 2.82 · good 22.00 · good Excellent
Sun 11:00 0.30 · good 2.48 · good 22.10 · good Excellent
Sun 12:00 0.28 · good 2.73 · good 22.20 · good Excellent
Sun 13:00 0.28 · good 3.44 · good 22.20 · good Excellent
Sun 14:00 0.32 · good 4.40 · good 22.30 · good Good
Sun 15:00 0.34 · good 5.43 · high 22.40 · good Good
Sun 16:00 0.38 · high 4.98 · good 22.40 · good Good
Sun 17:00 0.40 · high 5.70 · high 22.40 · good Good
Sun 18:00 0.42 · high 6.38 · high 22.40 · good Poor
Sun 19:00 0.44 · high 6.82 · high 22.40 · good Poor
Sun 20:00 0.44 · high 6.63 · high 22.30 · good Poor
Sun 21:00 0.40 · high 5.96 · high 22.40 · good Poor
Sun 22:00 0.40 · high 5.10 · good 22.40 · good Poor
Sun 23:00 0.38 · high 4.50 · good 22.30 · good Poor
Mon 00:00 0.38 · high 4.04 · good 22.30 · good Poor
Mon 01:00 0.36 · good 3.95 · good 22.30 · good Poor
Mon 02:00 0.36 · good 3.69 · good 22.30 · good Poor
Mon 03:00 0.34 · good 3.26 · good 22.20 · good Poor
Mon 04:00 0.34 · good 2.78 · good 22.20 · good Poor
Mon 05:00 0.32 · good 2.33 · good 22.20 · good Poor
Mon 06:00 0.32 · good 2.46 · good 22.20 · good Poor
Mon 07:00 0.30 · good 2.91 · good 22.20 · good Poor
Mon 08:00 0.28 · good 3.14 · good 22.20 · good Poor
Mon 09:00 0.28 · good 3.23 · good 22.20 · good Poor
Mon 10:00 0.26 · good 3.05 · good 22.30 · good Good
Mon 11:00 0.24 · good 2.89 · good 22.30 · good Excellent
Mon 12:00 0.24 · good 2.92 · good 22.40 · good Excellent
Mon 13:00 0.22 · good 3.26 · good 22.50 · good Good
Mon 14:00 0.22 · good 3.83 · good 22.60 · good Good
Mon 15:00 0.22 · good 4.14 · good 22.60 · good Good
Mon 16:00 0.22 · good 3.92 · good 22.70 · good Good
Mon 17:00 0.22 · good 4.00 · good 22.70 · good Excellent
Mon 18:00 0.22 · good 3.85 · good 22.70 · good Poor
Mon 19:00 0.22 · good 4.00 · good 22.60 · good Poor