MARINE REPORT / 72 HOURS

Poor Knights Islands Snorkel Report Today

New Zealand · Updated Mon 13:41 (NZDT) · Source: Snapshot

The skinny

Marginal Data updated Mon 13:41 (NZDT)

Poor Knights Islands looks marginal today. The least-bad daylight window is around Mon 16:00, but waves is limiting the forecast.

Right now (forecast)

Fair · 3.9/10

Mon 15:00 (NZDT)

Later today

Fair · 4.5/10

Mon 16:00 (NZDT)

Next three days

Good · 5.6/10

Tue 16:00 (NZDT)

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

Score: 4.5/10

Best time: Mon 16:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Mon 16:00 (Fair). Peak afternoon wind is about 3.4 m/s.

Email me when it is good

Sunrise

06:33

Sunset

19:39

Water

17.1°C

Max air

16.7°C

Sky

Clear

9% cloud

Good model window in the next 72 hours

Next good model window: Tue 16:00 (1% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Monday

⚠️ Fair conditions

Main blocker: Waves

Tuesday

✅ Good conditions

Main blocker: Waves

Wednesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

The next good model window starts at Tue 16:00.

Why this verdict

Main blockers across the next 72 hours:

  • Waves (69 hours)
  • Sea temperature (69 hours)
  • Darkness (51 hours)

Jellyfish drift risk

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

Low · 18/100

Low peak drift risk around Mon 23:00.

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: Tue 02:00

Tue 02:00, Tue 15:00, Wed 03:00, Wed 16:00, Thu 04:00

Nearby alternatives in New Zealand

Bay of Islands

65 km away

✅ Good

Goat Island

89 km away

✅ Good

Cathedral Cove

179 km away

✅ Good

Abel Tasman

621 km away

✅ Good

Advanced forecast data

Viewing current forecast

Mon 15:00 – Thu 15:00 (NZDT)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.53 around Tue 15:00; 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.

0/24 sampled hours stay at or below 0.36m (range 0.66m to 0.82m).

Wind is at or below 5.4m/s in 11/24 sampled hours (range 1.31 to 7.32m/s).

Tides range from -0.43m to 0.73m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview
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
Good 🌟 Good
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
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 16:00 0.78 · high 1.31 · good 17.10 · out of range Fair
Mon 17:00 0.78 · high 2.93 · good 17.10 · out of range Fair
Mon 18:00 0.78 · high 3.40 · good 17.20 · out of range Fair
Mon 19:00 0.78 · high 2.89 · good 17.20 · out of range Fair
Mon 20:00 0.80 · high 3.61 · good 17.10 · out of range Poor
Mon 21:00 0.80 · high 7.27 · high 17.10 · out of range Poor
Mon 22:00 0.82 · high 7.32 · high 17.00 · out of range Poor
Mon 23:00 0.82 · high 6.94 · high 16.90 · out of range Poor
Tue 00:00 0.80 · high 6.84 · high 16.80 · out of range Poor
Tue 01:00 0.80 · high 6.72 · high 16.70 · out of range Poor
Tue 02:00 0.80 · high 6.93 · high 16.70 · out of range Poor
Tue 03:00 0.78 · high 6.89 · high 16.60 · out of range Poor
Tue 04:00 0.78 · high 6.48 · high 16.60 · out of range Poor
Tue 05:00 0.78 · high 6.04 · high 16.60 · out of range Poor
Tue 06:00 0.76 · high 5.98 · high 16.60 · out of range Poor
Tue 07:00 0.76 · high 6.12 · high 16.60 · out of range Poor
Tue 08:00 0.74 · high 5.89 · high 16.60 · out of range Poor
Tue 09:00 0.74 · high 5.52 · high 16.70 · out of range Poor
Tue 10:00 0.72 · high 5.18 · good 16.70 · out of range Poor
Tue 11:00 0.70 · high 4.83 · good 16.80 · out of range Poor
Tue 12:00 0.70 · high 4.30 · good 16.90 · out of range Poor
Tue 13:00 0.68 · high 4.00 · good 16.90 · out of range Fair
Tue 14:00 0.66 · high 3.48 · good 17.00 · out of range Fair
Tue 15:00 0.66 · high 1.99 · good 17.10 · out of range Fair
Tue 16:00 0.64 · high 0.61 · good 17.10 · out of range Good
Tue 17:00 0.62 · high 0.45 · good 17.20 · out of range Fair
Tue 18:00 0.60 · high 0.92 · good 17.20 · out of range Fair
Tue 19:00 0.58 · high 1.34 · good 17.20 · out of range Fair
Tue 20:00 0.56 · high 1.75 · good 17.20 · out of range Poor
Tue 21:00 0.56 · high 1.47 · good 17.10 · out of range Poor
Tue 22:00 0.54 · high 2.71 · good 17.10 · out of range Poor
Tue 23:00 0.54 · high 3.97 · good 17.00 · out of range Poor
Wed 00:00 0.52 · high 4.35 · good 16.90 · out of range Poor
Wed 01:00 0.52 · high 4.42 · good 16.80 · out of range Poor
Wed 02:00 0.52 · high 4.67 · good 16.80 · out of range Poor
Wed 03:00 0.50 · high 4.70 · good 16.70 · out of range Poor
Wed 04:00 0.50 · high 4.95 · good 16.70 · out of range Poor
Wed 05:00 0.50 · high 5.68 · high 16.70 · out of range Poor
Wed 06:00 0.52 · high 5.73 · high 16.70 · out of range Poor
Wed 07:00 0.52 · high 5.49 · high 16.70 · out of range Poor
Wed 08:00 0.52 · high 5.22 · good 16.70 · out of range Poor
Wed 09:00 0.52 · high 5.17 · good 16.70 · out of range Poor
Wed 10:00 0.52 · high 4.94 · good 16.80 · out of range Poor
Wed 11:00 0.52 · high 4.70 · good 16.80 · out of range Poor
Wed 12:00 0.52 · high 4.63 · good 16.90 · out of range Poor
Wed 13:00 0.52 · high 4.14 · good 16.90 · out of range Fair
Wed 14:00 0.52 · high 2.93 · good 17.00 · out of range Fair
Wed 15:00 0.52 · high 1.88 · good 17.00 · out of range Fair
Wed 16:00 0.52 · high 2.55 · good 17.00 · out of range Fair
Wed 17:00 0.52 · high 5.16 · good 17.10 · out of range Fair
Wed 18:00 0.54 · high 6.19 · high 17.10 · out of range Fair
Wed 19:00 0.54 · high 5.71 · high 17.10 · out of range Fair
Wed 20:00 0.56 · high 6.42 · high 17.10 · out of range Poor
Wed 21:00 0.56 · high 6.69 · high 17.00 · out of range Poor
Wed 22:00 0.58 · high 6.09 · high 17.00 · out of range Poor
Wed 23:00 0.58 · high 5.82 · high 16.90 · out of range Poor
Thu 00:00 0.56 · high 6.16 · high 16.90 · out of range Poor
Thu 01:00 0.56 · high 5.68 · high 16.80 · out of range Poor
Thu 02:00 0.56 · high 5.33 · good 16.80 · out of range Poor
Thu 03:00 0.56 · high 5.53 · high 16.80 · out of range Poor
Thu 04:00 0.56 · high 5.81 · high 16.80 · out of range Poor
Thu 05:00 0.56 · high 6.23 · high 16.80 · out of range Poor
Thu 06:00 0.56 · high 6.57 · high 16.80 · out of range Poor
Thu 07:00 0.56 · high 6.26 · high 16.80 · out of range Poor
Thu 08:00 0.56 · high 5.89 · high 16.80 · out of range Poor
Thu 09:00 0.54 · high 5.55 · high 16.80 · out of range Poor
Thu 10:00 0.54 · high 5.43 · high 16.80 · out of range Poor
Thu 11:00 0.54 · high 4.54 · good 16.90 · out of range Poor
Thu 12:00 0.52 · high 4.07 · good 16.90 · out of range Poor