MARINE REPORT / 72 HOURS

Cathedral Cove Snorkel Report Today

New Zealand · Updated Thu 05:35 (NZDT) · Source: Snapshot

The skinny

Marginal Data updated Thu 05:35 (NZDT)

Cathedral Cove looks marginal today. The least-bad daylight window is around Thu 20:00, but waves is limiting the forecast.

Right now (forecast)

Poor · 0.0/10

Thu 07:00 (NZDT)

Later today

Poor · 3.1/10

Thu 20:00 (NZDT)

Next three days

Fair · 4.8/10

Sat 20:00 (NZDT)

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

Score: 3.1/10

Best time: Thu 20:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Thu 20:00 (Poor). Peak afternoon wind is about 5.0 m/s.

Email me when it is good

Sunrise

06:02

Sunset

20:00

Water

16.0°C

Max air

21.2°C

Sky

Partly cloudy

40% 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 (0.48) · still limited by waves, sea temperature
  • Sat 19:00: Fair (0.46) · still limited by waves, sea temperature
  • Sat 13:00: Fair (0.38) · still limited by waves, sea temperature

Why this verdict

Main blockers across the next 72 hours:

  • Waves (69 hours)
  • Sea temperature (69 hours)
  • Tide/current (58 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

Thu 07:00 – Sun 07:00 (NZDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.31 around Thu 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 0.74m to 1.18m).

Wind is at or below 5.4m/s in 15/24 sampled hours (range 2.6 to 7.5m/s).

Tides range from -0.48m to 0.97m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
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Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
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Poor ❌ Limited
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
Thu 07:00 1.04 · high 5.41 · high 16.00 · out of range Poor
Thu 08:00 1.08 · high 5.69 · high 16.00 · out of range Poor
Thu 09:00 1.14 · high 6.65 · high 15.90 · out of range Poor
Thu 10:00 1.18 · high 7.38 · high 15.90 · out of range Poor
Thu 11:00 1.14 · high 7.50 · high 15.90 · out of range Poor
Thu 12:00 1.08 · high 5.17 · good 15.90 · out of range Poor
Thu 13:00 1.04 · high 4.75 · good 15.90 · out of range Poor
Thu 14:00 1.00 · high 5.32 · good 15.90 · out of range Poor
Thu 15:00 0.94 · high 5.11 · good 15.90 · out of range Poor
Thu 16:00 0.90 · high 5.31 · good 15.90 · out of range Poor
Thu 17:00 0.88 · high 5.79 · high 15.80 · out of range Poor
Thu 18:00 0.86 · high 6.40 · high 15.80 · out of range Poor
Thu 19:00 0.84 · high 5.65 · high 15.80 · out of range Poor
Thu 20:00 0.86 · high 4.42 · good 15.80 · out of range Poor
Thu 21:00 0.86 · high 4.62 · good 15.80 · out of range Poor
Thu 22:00 0.88 · high 4.23 · good 15.80 · out of range Poor
Thu 23:00 0.96 · high 2.95 · good 15.70 · out of range Poor
Fri 00:00 0.86 · high 2.60 · good 15.60 · out of range Poor
Fri 01:00 0.86 · high 4.60 · good 15.60 · out of range Poor
Fri 02:00 0.88 · high 4.76 · good 15.60 · out of range Poor
Fri 03:00 0.88 · high 4.34 · good 15.60 · out of range Poor
Fri 04:00 0.90 · high 5.99 · high 15.60 · out of range Poor
Fri 05:00 0.82 · high 5.11 · good 15.50 · out of range Poor
Fri 06:00 0.74 · high 4.11 · good 15.50 · out of range Poor
Fri 07:00 0.66 · high 3.51 · good 15.50 · out of range Poor
Fri 08:00 0.62 · high 4.05 · good 15.50 · out of range Poor
Fri 09:00 0.60 · high 4.96 · good 15.60 · out of range Poor
Fri 10:00 0.56 · high 4.94 · good 15.60 · out of range Poor
Fri 11:00 0.54 · high 4.71 · good 15.60 · out of range Poor
Fri 12:00 0.52 · high 5.60 · high 15.70 · out of range Poor
Fri 13:00 0.50 · high 3.86 · good 15.70 · out of range Poor
Fri 14:00 0.52 · high 3.59 · good 15.70 · out of range Fair
Fri 15:00 0.56 · high 2.38 · good 15.70 · out of range Fair
Fri 16:00 0.58 · high 1.71 · good 15.70 · out of range Fair
Fri 17:00 0.58 · high 1.30 · good 15.80 · out of range Fair
Fri 18:00 0.58 · high 1.40 · good 15.80 · out of range Fair
Fri 19:00 0.58 · high 1.36 · good 15.80 · out of range Fair
Fri 20:00 0.68 · high 1.33 · good 15.80 · out of range Poor
Fri 21:00 0.80 · high 2.12 · good 15.80 · out of range Poor
Fri 22:00 0.90 · high 1.84 · good 15.70 · out of range Poor
Fri 23:00 0.90 · high 1.39 · good 15.70 · out of range Poor
Sat 00:00 0.76 · high 3.73 · good 15.60 · out of range Poor
Sat 01:00 0.84 · high 3.48 · good 15.60 · out of range Poor
Sat 02:00 0.82 · high 3.55 · good 15.60 · out of range Poor
Sat 03:00 0.80 · high 2.80 · good 15.50 · out of range Poor
Sat 04:00 0.78 · high 3.33 · good 15.50 · out of range Poor
Sat 05:00 0.74 · high 3.54 · good 15.50 · out of range Poor
Sat 06:00 0.70 · high 4.33 · good 15.50 · out of range Poor
Sat 07:00 0.66 · high 3.51 · good 15.50 · out of range Poor
Sat 08:00 0.64 · high 4.16 · good 15.50 · out of range Poor
Sat 09:00 0.64 · high 4.16 · good 15.50 · out of range Poor
Sat 10:00 0.80 · high 5.38 · good 15.50 · out of range Poor
Sat 11:00 0.78 · high 4.55 · good 15.60 · out of range Poor
Sat 12:00 0.76 · high 4.44 · good 15.60 · out of range Poor
Sat 13:00 0.74 · high 4.11 · good 15.60 · out of range Poor
Sat 14:00 0.72 · high 4.31 · good 15.60 · out of range Poor
Sat 15:00 0.68 · high 4.56 · good 15.60 · out of range Poor
Sat 16:00 0.66 · high 4.74 · good 15.60 · out of range Poor
Sat 17:00 0.62 · high 4.12 · good 15.60 · out of range Poor
Sat 18:00 0.60 · high 3.54 · good 15.60 · out of range Fair
Sat 19:00 0.56 · high 2.44 · good 15.60 · out of range Fair
Sat 20:00 0.54 · high 2.01 · good 15.60 · out of range Poor
Sat 21:00 0.54 · high 2.35 · good 15.60 · out of range Poor
Sat 22:00 0.58 · high 2.65 · good 15.60 · out of range Poor
Sat 23:00 0.58 · high 2.43 · good 15.60 · out of range Poor
Sun 00:00 0.58 · high 2.57 · good 15.60 · out of range Poor
Sun 01:00 0.58 · high 2.69 · good 15.60 · out of range Poor
Sun 02:00 0.58 · high 2.80 · good 15.60 · out of range Poor
Sun 03:00 0.56 · high 2.34 · good 15.50 · out of range Poor
Sun 04:00 0.56 · high 2.27 · good 15.50 · out of range Poor
Sun 05:00 0.56 · high 1.98 · good 15.50 · out of range Poor
Sun 06:00 0.56 · high 1.84 · good 15.50 · out of range Poor