MARINE REPORT / 72 HOURS

Goat Island Snorkel Report Today

New Zealand · Updated Sat 23:09 (NZDT) · Source: Snapshot

The skinny

Marginal Data updated Sat 23:09 (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 01:00 (NZDT)

Later today

Fair · 4.7/10

Sun 13:00 (NZDT)

Next three days

Excellent · 7.4/10

Tue 16:00 (NZDT)

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

Score: 4.7/10

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 5.0 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

16.7°C

Max air

19.0°C

Sky

Clear

0% cloud

Good model window in the next 72 hours

Next good model window: Tue 13:00–19:00 (10% 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

⚠️ Fair conditions

Main blocker: Sea temperature

Tuesday

✅ Excellent conditions

Main blocker: Sea temperature

Best available hours

The next good model window starts at Tue 13:00 and lasts until 19:00.

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (69 hours)
  • Tide/current (60 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

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

Tue 01:00 – Fri 01:00 (NZDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.32 around Tue 19:00; 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 0.72m to 1.02m).

Wind is at or below 5.4m/s in 20/24 sampled hours (range 2.41 to 6.4m/s).

Tides range from -0.73m to 1.04m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Fair ⚠️ Fair
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
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Fair ⚠️ Fair
Fair ⚠️ Fair
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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
Tue 01:00 1.02 · high 6.40 · high 15.60 · out of range Poor
Tue 02:00 1.02 · high 5.90 · high 15.60 · out of range Poor
Tue 03:00 1.00 · high 5.70 · high 15.50 · out of range Poor
Tue 04:00 1.00 · high 5.48 · high 15.50 · out of range Poor
Tue 05:00 1.00 · high 5.29 · good 15.50 · out of range Poor
Tue 06:00 0.98 · high 5.24 · good 15.50 · out of range Poor
Tue 07:00 0.94 · high 4.31 · good 15.50 · out of range Poor
Tue 08:00 0.92 · high 4.78 · good 15.50 · out of range Poor
Tue 09:00 0.88 · high 5.36 · good 15.50 · out of range Poor
Tue 10:00 0.86 · high 5.21 · good 15.60 · out of range Poor
Tue 11:00 0.84 · high 5.11 · good 15.60 · out of range Poor
Tue 12:00 0.80 · high 5.14 · good 15.60 · out of range Poor
Tue 13:00 0.78 · high 5.07 · good 15.70 · out of range Poor
Tue 14:00 0.76 · high 4.72 · good 15.70 · out of range Poor
Tue 15:00 0.76 · high 4.61 · good 15.70 · out of range Poor
Tue 16:00 0.74 · high 4.56 · good 15.80 · out of range Poor
Tue 17:00 0.74 · high 4.65 · good 15.80 · out of range Poor
Tue 18:00 0.72 · high 4.27 · good 15.80 · out of range Poor
Tue 19:00 0.72 · high 4.20 · good 15.80 · out of range Poor
Tue 20:00 0.72 · high 3.70 · good 15.80 · out of range Poor
Tue 21:00 0.72 · high 3.56 · good 15.80 · out of range Poor
Tue 22:00 0.72 · high 3.19 · good 15.80 · out of range Poor
Tue 23:00 0.72 · high 2.41 · good 15.80 · out of range Poor
Wed 00:00 0.78 · high 3.63 · good 15.80 · out of range Poor
Wed 01:00 0.76 · high 3.73 · good 15.80 · out of range Poor
Wed 02:00 0.74 · high 3.52 · good 15.80 · out of range Poor
Wed 03:00 0.74 · high 3.04 · good 15.80 · out of range Poor
Wed 04:00 0.72 · high 2.43 · good 15.80 · out of range Poor
Wed 05:00 0.72 · high 2.47 · good 15.70 · out of range Poor
Wed 06:00 0.72 · high 2.02 · good 15.70 · out of range Poor
Wed 07:00 0.72 · high 1.77 · good 15.70 · out of range Poor
Wed 08:00 0.72 · high 2.29 · good 15.70 · out of range Poor
Wed 09:00 0.70 · high 3.22 · good 15.80 · out of range Poor
Wed 10:00 0.70 · high 3.88 · good 15.80 · out of range Poor
Wed 11:00 0.70 · high 3.59 · good 15.80 · out of range Poor
Wed 12:00 0.68 · high 2.94 · good 15.80 · out of range Poor
Wed 13:00 0.68 · high 2.93 · good 15.90 · out of range Fair
Wed 14:00 0.70 · high 2.82 · good 15.90 · out of range Fair
Wed 15:00 0.70 · high 2.44 · good 16.00 · out of range Fair
Wed 16:00 0.72 · high 2.44 · good 16.00 · out of range Fair
Wed 17:00 0.76 · high 2.26 · good 16.10 · out of range Poor
Wed 18:00 0.80 · high 1.56 · good 16.20 · out of range Fair
Wed 19:00 0.84 · high 3.80 · good 16.20 · out of range Poor
Wed 20:00 0.84 · high 3.80 · good 16.20 · out of range Poor
Wed 21:00 0.86 · high 3.99 · good 16.10 · out of range Poor
Wed 22:00 0.86 · high 4.05 · good 16.10 · out of range Poor
Wed 23:00 0.86 · high 3.86 · good 16.10 · out of range Poor
Thu 00:00 0.80 · high 3.55 · good 16.10 · out of range Poor
Thu 01:00 0.78 · high 3.36 · good 16.00 · out of range Poor
Thu 02:00 0.76 · high 3.44 · good 16.00 · out of range Poor
Thu 03:00 0.74 · high 3.62 · good 16.00 · out of range Poor
Thu 04:00 0.72 · high 3.81 · good 15.90 · out of range Poor
Thu 05:00 0.68 · high 4.95 · good 15.90 · out of range Poor
Thu 06:00 0.66 · high 4.84 · good 15.90 · out of range Poor
Thu 07:00 0.66 · high 4.70 · good 15.90 · out of range Poor
Thu 08:00 0.64 · high 4.63 · good 16.00 · out of range Poor
Thu 09:00 0.64 · high 4.50 · good 16.00 · out of range Poor
Thu 10:00 0.62 · high 4.38 · good 16.10 · out of range Poor
Thu 11:00 0.60 · high 3.75 · good 16.20 · out of range Poor
Thu 12:00 0.60 · high 3.35 · good 16.30 · out of range Poor
Thu 13:00 0.58 · high 3.54 · good 16.40 · out of range Poor
Thu 14:00 0.58 · high 3.82 · good 16.40 · out of range Fair
Thu 15:00 0.58 · high 4.17 · good 16.50 · out of range Fair
Thu 16:00 0.58 · high 3.87 · good 16.50 · out of range Fair
Thu 17:00 0.58 · high 3.16 · good 16.60 · out of range Fair
Thu 18:00 0.58 · high 2.48 · good 16.60 · out of range Fair
Thu 19:00 0.58 · high 1.05 · good 16.60 · out of range Fair
Thu 20:00 0.58 · high 0.42 · good 16.60 · out of range Poor
Thu 21:00 0.58 · high 0.63 · good 16.60 · out of range Poor
Thu 22:00 0.58 · high 0.92 · good 16.50 · out of range Poor
Thu 23:00 0.60 · high 0.95 · good 16.50 · out of range Poor
Fri 00:00 0.52 · high 1.04 · good 16.30 · out of range Poor