MARINE REPORT / 72 HOURS

Goat Island Snorkel Report Today

New Zealand · Updated Sun 05:47 (NZDT) · Source: Snapshot

The skinny

Marginal Data updated Sun 05:47 (NZDT)

Goat Island looks marginal today. The least-bad daylight window is around Sun 13:00, but waves is limiting the forecast.

Right now (forecast)

Poor · 0.0/10

Sun 07:00 (NZDT)

Later today

Fair · 4.9/10

Sun 13:00 (NZDT)

Next three days

Excellent · 7.5/10

Tue 16:00 (NZDT)

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

Score: 4.9/10

Best time: Sun 13:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sun 13:00 (Fair). Peak afternoon wind is about 5.1 m/s.

Email me when it is good

Planning Goat Island in January? Where to snorkel in January compares destinations and local seasonal cautions.

Sunrise

06:35

Sunset

19:38

Water

16.6°C

Max air

19.1°C

Sky

Clear

1% cloud

Good model window in the next 72 hours

Next good model window: Mon 19:00 (12% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Sunday

⚠️ Fair conditions

Main blocker: Waves

Monday

✅ Good conditions

Main blocker: Sea temperature

Tuesday

✅ Excellent conditions

Main blocker: Sea temperature

Best available hours

The next good model window starts at Mon 19:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (69 hours)
  • Tide/current (59 hours)
  • Darkness (48 hours)

Jellyfish drift risk

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

Low · 16/100

Low peak drift risk around Sun 13:00.

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: Mon 01:00

Sun 13:00, Mon 01:00, Mon 14:00, Tue 02:00, Tue 15:00, Wed 03:00

Nearby alternatives in New Zealand

Poor Knights Islands

89 km away

❌ Poor

Cathedral Cove

108 km away

✅ Good

Bay of Islands

133 km away

✅ Good

Abel Tasman

536 km away

✅ Good

Advanced forecast data

Viewing historical data

Fri 07:00 – Mon 07:00 (NZDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.53 around Fri 19:00; 7 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.

24/24 sampled hours stay at or below 0.36m (range 0.14m to 0.32m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.94 to 4.9m/s).

Tides range from -1.03m to 1.05m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
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
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 07:00 0.14 · good 1.94 · good 15.50 · out of range Poor
Fri 08:00 0.14 · good 2.74 · good 15.50 · out of range Poor
Fri 09:00 0.14 · good 2.20 · good 15.50 · out of range Poor
Fri 10:00 0.14 · good 2.31 · good 15.60 · out of range Poor
Fri 11:00 0.14 · good 3.23 · good 15.70 · out of range Poor
Fri 12:00 0.14 · good 3.97 · good 15.70 · out of range Poor
Fri 13:00 0.14 · good 4.09 · good 15.80 · out of range Fair
Fri 14:00 0.18 · good 4.36 · good 15.80 · out of range Fair
Fri 15:00 0.20 · good 4.48 · good 15.80 · out of range Fair
Fri 16:00 0.24 · good 4.83 · good 15.90 · out of range Fair
Fri 17:00 0.26 · good 4.90 · good 15.90 · out of range Fair
Fri 18:00 0.30 · good 4.74 · good 15.90 · out of range Fair
Fri 19:00 0.32 · good 3.91 · good 15.90 · out of range Fair
Fri 20:00 0.30 · good 2.67 · good 15.90 · out of range Poor
Fri 21:00 0.28 · good 2.15 · good 15.80 · out of range Poor
Fri 22:00 0.26 · good 2.00 · good 15.80 · out of range Poor
Fri 23:00 0.24 · good 2.48 · good 15.70 · out of range Poor
Sat 00:00 0.24 · good 2.88 · good 15.70 · out of range Poor
Sat 01:00 0.22 · good 2.65 · good 15.60 · out of range Poor
Sat 02:00 0.24 · good 2.35 · good 15.60 · out of range Poor
Sat 03:00 0.24 · good 2.16 · good 15.60 · out of range Poor
Sat 04:00 0.26 · good 2.37 · good 15.60 · out of range Poor
Sat 05:00 0.26 · good 2.18 · good 15.60 · out of range Poor
Sat 06:00 0.26 · good 2.59 · good 15.60 · out of range Poor
Sat 07:00 0.30 · good 3.46 · good 15.60 · out of range Poor
Sat 08:00 0.34 · good 3.78 · good 15.60 · out of range Poor
Sat 09:00 0.36 · good 4.96 · good 15.60 · out of range Poor
Sat 10:00 0.40 · high 5.94 · high 15.70 · out of range Poor
Sat 11:00 0.42 · high 5.48 · high 15.70 · out of range Poor
Sat 12:00 0.44 · high 5.90 · high 15.80 · out of range Poor
Sat 13:00 0.46 · high 5.31 · good 15.80 · out of range Fair
Sat 14:00 0.46 · high 5.41 · high 15.90 · out of range Fair
Sat 15:00 0.48 · high 5.45 · high 15.90 · out of range Fair
Sat 16:00 0.48 · high 4.98 · good 16.00 · out of range Poor
Sat 17:00 0.48 · high 4.83 · good 16.00 · out of range Poor
Sat 18:00 0.46 · high 4.72 · good 16.00 · out of range Poor
Sat 19:00 0.46 · high 4.39 · good 16.00 · out of range Poor
Sat 20:00 0.44 · high 4.14 · good 16.00 · out of range Poor
Sat 21:00 0.40 · high 4.07 · good 16.00 · out of range Poor
Sat 22:00 0.38 · high 3.91 · good 16.00 · out of range Poor
Sat 23:00 0.36 · good 3.83 · good 15.90 · out of range Poor
Sun 00:00 0.32 · good 2.84 · good 15.80 · out of range Poor
Sun 01:00 0.32 · good 2.64 · good 15.80 · out of range Poor
Sun 02:00 0.50 · high 2.68 · good 15.80 · out of range Poor
Sun 03:00 0.70 · high 2.87 · good 15.70 · out of range Poor
Sun 04:00 0.88 · high 7.97 · high 15.70 · out of range Poor
Sun 05:00 0.38 · high 5.35 · good 15.70 · out of range Poor
Sun 06:00 0.42 · high 5.66 · high 15.70 · out of range Poor
Sun 07:00 0.46 · high 6.16 · high 15.70 · out of range Poor
Sun 08:00 0.60 · high 7.35 · high 15.70 · out of range Poor
Sun 09:00 0.74 · high 7.00 · high 15.70 · out of range Poor
Sun 10:00 0.88 · high 7.00 · high 15.80 · out of range Poor
Sun 11:00 0.96 · high 7.35 · high 15.80 · out of range Poor
Sun 12:00 1.02 · high 7.41 · high 15.80 · out of range Poor
Sun 13:00 1.10 · high 7.36 · high 15.80 · out of range Poor
Sun 14:00 1.10 · high 7.01 · high 15.90 · out of range Poor
Sun 15:00 1.12 · high 6.54 · high 15.90 · out of range Poor
Sun 16:00 1.12 · high 6.14 · high 15.90 · out of range Poor
Sun 17:00 1.08 · high 6.00 · high 15.90 · out of range Poor
Sun 18:00 1.06 · high 5.66 · high 16.00 · out of range Poor
Sun 19:00 1.02 · high 6.11 · high 16.00 · out of range Poor
Sun 20:00 0.98 · high 5.64 · high 16.00 · out of range Poor
Sun 21:00 0.96 · high 5.38 · good 15.90 · out of range Poor
Sun 22:00 0.92 · high 5.50 · high 15.90 · out of range Poor
Sun 23:00 0.90 · high 5.51 · high 15.90 · out of range Poor
Mon 00:00 0.98 · high 5.19 · good 15.50 · out of range Poor
Mon 01:00 0.96 · high 5.00 · good 15.50 · out of range Poor
Mon 02:00 0.94 · high 4.88 · good 15.50 · out of range Poor
Mon 03:00 0.94 · high 4.19 · good 15.50 · out of range Poor
Mon 04:00 0.92 · high 3.34 · good 15.50 · out of range Poor
Mon 05:00 0.90 · high 3.31 · good 15.40 · out of range Poor
Mon 06:00 0.90 · high 3.54 · good 15.40 · out of range Poor