MARINE REPORT / 72 HOURS

Cathedral Cove Snorkel Report Today

New Zealand · Updated Thu 02:23 (NZDT) · Source: Snapshot

The skinny

Marginal Data updated Thu 02:23 (NZDT)

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

Right now (forecast)

Poor · 0.0/10

Thu 05:00 (NZDT)

Later today

Poor · 3.0/10

Thu 16:00 (NZDT)

Next three days

Fair · 4.7/10

Sat 20:00 (NZDT)

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

Score: 3.0/10

Best time: Thu 16:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Thu 16:00 (Poor). Peak afternoon wind is about 4.8 m/s.

Email me when it is good

Sunrise

06:02

Sunset

20:00

Water

15.9°C

Max air

21.4°C

Sky

Cloudy

100% 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

Thursday

❌ Poor conditions

Main blocker: Waves

Friday

⚠️ Fair conditions

Main blocker: Waves

Saturday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Sat 20:00: Fair (0.47) · still limited by waves, sea temperature
  • Sat 19:00: Fair (0.45) · still limited by waves, sea temperature
  • Sat 13:00: Fair (0.39) · still limited by waves, sea temperature

Why this verdict

Main blockers across the next 72 hours:

  • Waves (68 hours)
  • Sea temperature (68 hours)
  • Tide/current (56 hours)

Jellyfish drift risk

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

Low · 18/100

Low peak drift risk around Thu 11:00.

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

Thu 09:00, Thu 21:00, Fri 10:00, Fri 22:00, Sat 11:00, Sat 23:00

Nearby alternatives in New Zealand

Goat Island

108 km away

❌ Poor

Poor Knights Islands

179 km away

❌ Poor

Bay of Islands

235 km away

❌ Poor

Abel Tasman

511 km away

✅ Good

Advanced forecast data

Viewing historical data

Tue 05:00 – Fri 05:00 (NZDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.24 around Tue 18:00; 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 0.56m to 1.1m).

Wind is at or below 5.4m/s in 15/24 sampled hours (range 2.97 to 7.74m/s).

Tides range from -0.76m to 1.1m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
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Poor ❌ Limited
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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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Tue 05:00 0.80 · high 4.89 · good 16.20 · out of range Poor
Tue 06:00 0.86 · high 5.38 · good 16.20 · out of range Poor
Tue 07:00 0.92 · high 4.96 · good 16.20 · out of range Poor
Tue 08:00 0.96 · high 5.30 · good 16.20 · out of range Poor
Tue 09:00 1.02 · high 7.15 · high 16.20 · out of range Poor
Tue 10:00 0.98 · high 7.15 · high 16.20 · out of range Poor
Tue 11:00 1.02 · high 7.74 · high 16.20 · out of range Poor
Tue 12:00 1.06 · high 6.79 · high 16.20 · out of range Poor
Tue 13:00 1.10 · high 7.00 · high 16.20 · out of range Poor
Tue 14:00 1.10 · high 6.89 · high 16.20 · out of range Poor
Tue 15:00 1.10 · high 6.30 · high 16.20 · out of range Poor
Tue 16:00 1.10 · high 6.02 · high 16.20 · out of range Poor
Tue 17:00 1.04 · high 5.50 · high 16.20 · out of range Poor
Tue 18:00 0.98 · high 5.10 · good 16.20 · out of range Poor
Tue 19:00 0.92 · high 5.30 · good 16.20 · out of range Poor
Tue 20:00 0.88 · high 4.36 · good 16.20 · out of range Poor
Tue 21:00 0.84 · high 4.79 · good 16.20 · out of range Poor
Tue 22:00 0.80 · high 4.97 · good 16.20 · out of range Poor
Tue 23:00 0.72 · high 4.02 · good 16.00 · out of range Poor
Wed 00:00 0.68 · high 4.06 · good 15.90 · out of range Poor
Wed 01:00 0.66 · high 3.81 · good 15.90 · out of range Poor
Wed 02:00 0.62 · high 3.23 · good 15.90 · out of range Poor
Wed 03:00 0.60 · high 2.97 · good 15.90 · out of range Poor
Wed 04:00 0.56 · high 3.20 · good 15.90 · out of range Poor
Wed 05:00 0.54 · high 3.85 · good 15.90 · out of range Poor
Wed 06:00 0.52 · high 3.27 · good 15.90 · out of range Poor
Wed 07:00 0.50 · high 2.68 · good 15.90 · out of range Poor
Wed 08:00 0.48 · high 3.18 · good 16.00 · out of range Poor
Wed 09:00 0.48 · high 3.70 · good 16.00 · out of range Poor
Wed 10:00 0.46 · high 3.75 · good 16.10 · out of range Poor
Wed 11:00 0.46 · high 3.23 · good 16.10 · out of range Poor
Wed 12:00 0.46 · high 3.78 · good 16.20 · out of range Poor
Wed 13:00 0.46 · high 4.57 · good 16.20 · out of range Poor
Wed 14:00 0.46 · high 5.05 · good 16.20 · out of range Poor
Wed 15:00 0.48 · high 5.08 · good 16.30 · out of range Fair
Wed 16:00 0.48 · high 5.44 · high 16.30 · out of range Fair
Wed 17:00 0.48 · high 5.19 · good 16.20 · out of range Fair
Wed 18:00 0.50 · high 5.94 · high 16.20 · out of range Fair
Wed 19:00 0.50 · high 4.45 · good 16.20 · out of range Fair
Wed 20:00 0.50 · high 3.02 · good 16.20 · out of range Poor
Wed 21:00 0.48 · high 3.21 · good 16.20 · out of range Poor
Wed 22:00 0.48 · high 3.77 · good 16.20 · out of range Poor
Wed 23:00 0.50 · high 3.91 · good 16.10 · out of range Poor
Thu 00:00 0.50 · high 3.28 · good 16.10 · out of range Poor
Thu 01:00 0.48 · high 3.36 · good 16.00 · out of range Poor
Thu 02:00 0.48 · high 3.21 · good 16.00 · out of range Poor
Thu 03:00 0.48 · high 3.27 · good 16.00 · out of range Poor
Thu 04:00 0.48 · high 3.05 · good 16.00 · out of range Poor
Thu 05:00 0.48 · high 3.24 · good 15.90 · out of range Poor
Thu 06:00 0.48 · high 3.62 · good 15.90 · out of range Poor
Thu 07:00 0.48 · high 3.91 · good 15.90 · out of range Poor
Thu 08:00 0.52 · high 5.02 · good 15.90 · out of range Poor
Thu 09:00 0.58 · high 5.84 · high 15.90 · out of range Poor
Thu 10:00 0.62 · high 7.38 · high 16.00 · out of range Poor
Thu 11:00 0.68 · high 7.71 · high 16.00 · out of range Poor
Thu 12:00 0.82 · high 7.88 · high 16.00 · out of range Poor
Thu 13:00 0.88 · high 8.22 · high 16.00 · out of range Poor
Thu 14:00 0.90 · high 8.69 · high 16.00 · out of range Poor
Thu 15:00 0.94 · high 8.84 · high 16.00 · out of range Poor
Thu 16:00 0.96 · high 8.86 · high 16.00 · out of range Poor
Thu 17:00 0.92 · high 8.70 · high 16.00 · out of range Poor
Thu 18:00 0.90 · high 8.35 · high 16.00 · out of range Poor
Thu 19:00 0.86 · high 8.70 · high 16.00 · out of range Poor
Thu 20:00 0.80 · high 8.01 · high 16.00 · out of range Poor
Thu 21:00 0.72 · high 7.23 · high 15.90 · out of range Poor
Thu 22:00 0.82 · high 6.68 · high 15.90 · out of range Poor
Thu 23:00 0.74 · high 6.37 · high 15.90 · out of range Poor
Fri 00:00 0.68 · high 6.14 · high 15.80 · out of range Poor
Fri 01:00 0.60 · high 5.52 · high 15.80 · out of range Poor
Fri 02:00 0.56 · high 4.88 · good 15.80 · out of range Poor
Fri 03:00 0.52 · high 4.97 · good 15.80 · out of range Poor
Fri 04:00 0.48 · high 4.18 · good 15.80 · out of range Poor