SnorkelForecast.com

Jervis Bay Snorkel Report Today

Australia · Updated Tue 03:13 (AEST) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Thu 05:14

Jervis Bay looks marginal today. The least-bad daylight window is around Thu 16:00, but waves is limiting the forecast.

Score: 5.1/10

Best time: Thu 16:00

Main risk: Waves

Best morning signal: Thu 10:00 (Fair).

Best afternoon signal: Thu 16:00 (Fair). Peak afternoon wind is about 5.3 m/s.

Email me when it is good

Sunrise

06:59

Sunset

17:08

Water

18.5°C

Max air

17.4°C

Sky

Clear

11% 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

Thursday

⚠️ fair conditions

Main blocker: Waves

Friday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Thu 06:00 — Fair (0.51) · still limited by waves, sea temperature
  • Fri 00:00 — Fair (0.49) · still limited by waves, sea temperature
  • Fri 01:00 — Fair (0.48) · still limited by waves, sea temperature

Why this verdict

Main blockers across the next 72 hours:

  • Waves (31 hours)
  • Sea temperature (31 hours)
  • Darkness (20 hours)

Jellyfish drift risk

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

Low · 15/100

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

Next early morning high tide: Thu 18:00

Thu 05:00, Thu 18:00

Nearby alternatives in Australia

Byron Bay

769 km away

❌ Poor

Lord Howe Island

870 km away

❌ Poor

Lady Elliot Island

1237 km away

❌ Poor

Heron Island

1301 km away

✅ Good

Advanced forecast data

Viewing historical data

Mon 19:00 – Thu 19:00 (AEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.03 around Tue 14:00; 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 0.98m to 1.3m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 6.9 to 20.3m/s).

Tides range from -0.53m to 0.78m; 2 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
Mon 19:00 1.02 · high 7.70 · high 18.80 · out of range poor
Mon 20:00 1.02 · high 8.20 · high 18.80 · out of range poor
Mon 21:00 1.02 · high 8.60 · high 18.80 · out of range poor
Mon 22:00 1.02 · high 8.80 · high 18.80 · out of range poor
Mon 23:00 1.04 · high 8.20 · high 18.80 · out of range poor
Tue 00:00 1.04 · high 8.40 · high 18.80 · out of range poor
Tue 01:00 1.06 · high 11.20 · high 18.80 · out of range poor
Tue 02:00 1.10 · high 14.20 · high 18.80 · out of range poor
Tue 03:00 1.12 · high 18.10 · high 18.80 · out of range poor
Tue 04:00 1.14 · high 20.30 · high 18.90 · out of range poor
Tue 05:00 1.16 · high 19.60 · high 18.90 · out of range poor
Tue 06:00 1.18 · high 19.80 · high 18.90 · out of range poor
Tue 07:00 1.18 · high 18.60 · high 18.90 · out of range poor
Tue 08:00 1.16 · high 14.80 · high 18.90 · out of range poor
Tue 09:00 1.16 · high 11.30 · high 18.90 · out of range poor
Tue 10:00 1.14 · high 12.00 · high 18.90 · out of range poor
Tue 11:00 1.30 · high 15.10 · high 18.90 · out of range poor
Tue 12:00 1.30 · high 12.80 · high 18.90 · out of range poor
Tue 13:00 1.24 · high 12.80 · high 18.90 · out of range poor
Tue 14:00 1.18 · high 10.80 · high 18.90 · out of range poor
Tue 15:00 1.12 · high 9.30 · high 18.90 · out of range poor
Tue 16:00 1.08 · high 6.90 · high 18.90 · out of range poor
Tue 17:00 1.02 · high 9.60 · high 18.90 · out of range poor
Tue 18:00 0.98 · high 8.30 · high 18.90 · out of range poor
Tue 19:00 0.94 · high 10.10 · high 18.90 · out of range poor
Tue 20:00 0.90 · high 10.70 · high 18.90 · out of range poor
Tue 21:00 0.86 · high 11.00 · high 18.90 · out of range poor
Tue 22:00 0.84 · high 12.40 · high 18.90 · out of range poor
Tue 23:00 0.80 · high 12.20 · high 18.90 · out of range poor
Wed 00:00 0.78 · high 10.60 · high 18.90 · out of range poor
Wed 01:00 0.78 · high 10.50 · high 18.90 · out of range poor
Wed 02:00 0.80 · high 10.10 · high 18.90 · out of range poor
Wed 03:00 0.80 · high 13.00 · high 18.90 · out of range poor
Wed 04:00 0.86 · high 13.80 · high 18.90 · out of range poor
Wed 05:00 0.90 · high 10.90 · high 18.90 · out of range poor
Wed 06:00 0.96 · high 11.90 · high 18.90 · out of range poor
Wed 07:00 1.00 · high 17.10 · high 18.90 · out of range poor
Wed 08:00 1.02 · high 19.70 · high 18.90 · out of range poor
Wed 09:00 1.06 · high 18.70 · high 18.90 · out of range poor
Wed 10:00 1.08 · high 20.00 · high 18.90 · out of range poor
Wed 11:00 1.10 · high 17.60 · high 18.90 · out of range poor
Wed 12:00 1.12 · high 20.30 · high 18.90 · out of range poor
Wed 13:00 1.14 · high 26.20 · high 18.90 · out of range poor
Wed 14:00 1.14 · high 24.80 · high 18.90 · out of range poor
Wed 15:00 1.16 · high 27.00 · high 18.90 · out of range poor
Wed 16:00 1.14 · high 26.70 · high 18.90 · out of range poor
Wed 17:00 1.14 · high 18.40 · high 18.90 · out of range poor
Wed 18:00 1.12 · high 15.40 · high 18.90 · out of range poor
Wed 19:00 1.12 · high 18.60 · high 18.90 · out of range poor
Wed 20:00 1.10 · high 13.30 · high 18.90 · out of range poor
Wed 21:00 1.10 · high 11.50 · high 18.80 · out of range poor
Wed 22:00 1.08 · high 16.40 · high 18.80 · out of range poor
Wed 23:00 1.08 · high 15.70 · high 18.80 · out of range poor
Thu 00:00 1.06 · high 14.10 · high 18.80 · out of range poor
Thu 01:00 1.02 · high 17.90 · high 18.80 · out of range poor
Thu 02:00 0.98 · high 17.10 · high 18.80 · out of range poor
Thu 03:00 0.94 · high 16.80 · high 18.80 · out of range poor
Thu 04:00 0.90 · high 16.70 · high 18.90 · out of range poor
Thu 05:00 0.84 · high 15.30 · high 18.90 · out of range poor
Thu 06:00 0.80 · high 15.00 · high 18.90 · out of range poor
Thu 07:00 0.80 · high 11.60 · high 18.90 · out of range poor
Thu 08:00 0.78 · high 13.90 · high 18.90 · out of range poor
Thu 09:00 0.78 · high 16.70 · high 18.90 · out of range poor
Thu 10:00 0.78 · high 17.90 · high 18.80 · out of range poor
Thu 11:00 0.76 · high 17.30 · high 18.80 · out of range poor
Thu 12:00 0.76 · high 18.60 · high 18.80 · out of range poor
Thu 13:00 0.76 · high 18.50 · high 18.80 · out of range poor
Thu 14:00 0.76 · high 17.30 · high 18.80 · out of range poor
Thu 15:00 0.76 · high 15.20 · high 18.80 · out of range poor
Thu 16:00 0.76 · high 13.10 · high 18.80 · out of range poor
Thu 17:00 0.76 · high 12.80 · high 18.70 · out of range poor
Thu 18:00 0.76 · high 12.40 · high 18.70 · out of range poor