MARINE REPORT / 72 HOURS

Goat Island Snorkel Report Today

New Zealand · Updated Mon 04:01 (NZDT) · Source: Snapshot

The skinny

Marginal Data updated Mon 04:01 (NZDT)

Goat Island looks marginal today. The least-bad daylight window is around Mon 19:00, but sea temperature is limiting the forecast.

Right now (forecast)

Poor · 0.0/10

Mon 04:00 (NZDT)

Later today

Fair · 5.3/10

Mon 19:00 (NZDT)

Next three days

Fair · 5.3/10

Mon 19:00 (NZDT)

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

Score: 5.3/10

Best time: Mon 19:00

Main risk: Sea Temperature

No useful morning window is showing yet.

Best afternoon signal: Mon 19:00 (Fair). Peak afternoon wind is about 6.2 m/s.

Email me when it is good

Sunrise

06:43

Sunset

19:32

Water

16.8°C

Max air

19.7°C

Sky

Cloudy

89% 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

Monday

⚠️ Fair conditions

Main blocker: Sea temperature

Tuesday

⚠️ Fair conditions

Main blocker: Sea temperature

Wednesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Mon 19:00: Fair (0.53) · still limited by waves, sea temperature
  • Tue 19:00: Fair (0.48) · still limited by waves, wind
  • Tue 14:00: Fair (0.47) · still limited by waves, sea temperature

Why this verdict

Main blockers across the next 72 hours:

  • Sea temperature (71 hours)
  • Waves (55 hours)
  • Darkness (50 hours)

Jellyfish drift risk

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

Low · 12/100

Low peak drift risk around Mon 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

Mon 09:00, Mon 21:00, Tue 09:00, Tue 21:00, Wed 10:00, Wed 22:00

Nearby alternatives in New Zealand

Poor Knights Islands

89 km away

❌ Poor

Cathedral Cove

108 km away

❌ Poor

Bay of Islands

133 km away

❌ Poor

Abel Tasman

536 km away

❌ Poor

Advanced forecast data

Viewing current forecast

Mon 04:00 – Thu 04:00 (NZDT)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.53 around Mon 19:00; 5 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.

9/24 sampled hours stay at or below 0.36m (range 0.34m to 0.46m).

Wind is at or below 5.4m/s in 16/24 sampled hours (range 1.62 to 6.22m/s).

Tides range from -0.97m to 1.17m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview
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
Fair ⚠️ Fair
Fair ⚠️ Fair
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
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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
Mon 05:00 0.38 · high 4.88 · good 16.80 · out of range Poor
Mon 06:00 0.40 · high 4.85 · good 16.80 · out of range Poor
Mon 07:00 0.40 · high 5.22 · good 16.80 · out of range Poor
Mon 08:00 0.40 · high 5.07 · good 16.80 · out of range Poor
Mon 09:00 0.42 · high 5.46 · high 16.90 · out of range Poor
Mon 10:00 0.42 · high 5.97 · high 16.90 · out of range Poor
Mon 11:00 0.44 · high 5.81 · high 17.00 · out of range Poor
Mon 12:00 0.44 · high 6.09 · high 17.00 · out of range Poor
Mon 13:00 0.46 · high 6.22 · high 17.10 · out of range Poor
Mon 14:00 0.44 · high 6.16 · high 17.10 · out of range Poor
Mon 15:00 0.44 · high 5.72 · high 17.20 · out of range Fair
Mon 16:00 0.42 · high 5.42 · high 17.20 · out of range Fair
Mon 17:00 0.40 · high 4.84 · good 17.30 · out of range Fair
Mon 18:00 0.40 · high 4.07 · good 17.40 · out of range Fair
Mon 19:00 0.38 · high 3.16 · good 17.40 · out of range Fair
Mon 20:00 0.36 · good 2.01 · good 17.40 · out of range Poor
Mon 21:00 0.36 · good 1.62 · good 17.40 · out of range Poor
Mon 22:00 0.34 · good 1.80 · good 17.30 · out of range Poor
Mon 23:00 0.34 · good 1.92 · good 17.30 · out of range Poor
Tue 00:00 0.34 · good 2.14 · good 17.30 · out of range Poor
Tue 01:00 0.34 · good 2.75 · good 17.20 · out of range Poor
Tue 02:00 0.34 · good 3.18 · good 17.20 · out of range Poor
Tue 03:00 0.34 · good 3.36 · good 17.20 · out of range Poor
Tue 04:00 0.34 · good 3.21 · good 17.10 · out of range Poor
Tue 05:00 0.34 · good 3.38 · good 17.10 · out of range Poor
Tue 06:00 0.34 · good 3.13 · good 17.10 · out of range Poor
Tue 07:00 0.34 · good 2.34 · good 17.10 · out of range Poor
Tue 08:00 0.34 · good 3.56 · good 17.20 · out of range Poor
Tue 09:00 0.34 · good 4.10 · good 17.20 · out of range Poor
Tue 10:00 0.34 · good 4.53 · good 17.30 · out of range Poor
Tue 11:00 0.36 · good 4.86 · good 17.40 · out of range Poor
Tue 12:00 0.40 · high 5.16 · good 17.50 · out of range Poor
Tue 13:00 0.42 · high 4.32 · good 17.60 · out of range Fair
Tue 14:00 0.42 · high 4.48 · good 17.60 · out of range Fair
Tue 15:00 0.44 · high 5.15 · good 17.60 · out of range Fair
Tue 16:00 0.44 · high 6.35 · high 17.70 · out of range Fair
Tue 17:00 0.44 · high 7.01 · high 17.70 · out of range Fair
Tue 18:00 0.42 · high 6.13 · high 17.70 · out of range Fair
Tue 19:00 0.42 · high 5.52 · high 17.70 · out of range Fair
Tue 20:00 0.42 · high 4.55 · good 17.70 · out of range Poor
Tue 21:00 0.42 · high 4.20 · good 17.60 · out of range Poor
Tue 22:00 0.42 · high 3.50 · good 17.60 · out of range Poor
Tue 23:00 0.42 · high 3.32 · good 17.50 · out of range Poor
Wed 00:00 0.40 · high 3.47 · good 17.50 · out of range Poor
Wed 01:00 0.40 · high 3.46 · good 17.50 · out of range Poor
Wed 02:00 0.40 · high 3.55 · good 17.40 · out of range Poor
Wed 03:00 0.38 · high 3.26 · good 17.40 · out of range Poor
Wed 04:00 0.38 · high 2.94 · good 17.40 · out of range Poor
Wed 05:00 0.38 · high 3.13 · good 17.30 · out of range Poor
Wed 06:00 0.38 · high 3.52 · good 17.30 · out of range Poor
Wed 07:00 0.38 · high 3.20 · good 17.30 · out of range Poor
Wed 08:00 0.38 · high 3.30 · good 17.40 · out of range Poor
Wed 09:00 0.38 · high 2.76 · good 17.40 · out of range Poor
Wed 10:00 0.38 · high 3.18 · good 17.50 · out of range Poor
Wed 11:00 0.40 · high 4.08 · good 17.60 · out of range Poor
Wed 12:00 0.40 · high 4.21 · good 17.60 · out of range Poor
Wed 13:00 0.42 · high 3.96 · good 17.70 · out of range Fair
Wed 14:00 0.50 · high 4.49 · good 17.70 · out of range Fair
Wed 15:00 0.56 · high 4.61 · good 17.70 · out of range Poor
Wed 16:00 0.64 · high 4.25 · good 17.80 · out of range Poor
Wed 17:00 0.70 · high 4.06 · good 17.80 · out of range Poor
Wed 18:00 0.76 · high 3.27 · good 17.80 · out of range Fair
Wed 19:00 0.82 · high 3.30 · good 17.80 · out of range Fair
Wed 20:00 0.84 · high 3.26 · good 17.80 · out of range Poor
Wed 21:00 0.86 · high 4.82 · good 17.70 · out of range Poor
Wed 22:00 0.88 · high 5.98 · high 17.70 · out of range Poor
Wed 23:00 0.92 · high 5.70 · high 17.60 · out of range Poor
Thu 00:00 0.94 · high 6.31 · high 17.60 · out of range Poor
Thu 01:00 0.98 · high 6.70 · high 17.50 · out of range Poor
Thu 02:00 0.98 · high 7.40 · high 17.50 · out of range Poor
Thu 03:00 0.98 · high 7.35 · high 17.40 · out of range Poor