MARINE REPORT / 72 HOURS

Rarotonga Snorkel Report Today

Cook Islands · Updated Sat 00:07 (-10) · Source: Snapshot

The skinny

Marginal Data updated Sat 00:07 (-10)

Rarotonga looks marginal today. The least-bad daylight window is around Sat 11:00, but waves is limiting the forecast.

Right now (forecast)

Poor · 0.0/10

Sat 02:00 (-10)

Later today

Poor · 2.6/10

Sat 11:00 (-10)

Next three days

Fair · 3.6/10

Mon 08:00 (-10)

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

Score: 2.6/10

Best time: Sat 11:00

Main risk: Waves

Best morning signal: Sat 11:00 (Poor).

Best afternoon signal: Sat 12:00 (Poor). Peak afternoon wind is about 8.0 m/s.

Email me when it is good

Sunrise

06:06

Sunset

18:42

Water

24.1°C

Max air

22.6°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

Saturday

❌ Poor conditions

Main blocker: Waves

Sunday

❌ Poor conditions

Main blocker: Waves

Monday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Mon 08:00: Fair (0.36) · still limited by waves, wind
  • Mon 07:00: Fair (0.35) · still limited by waves, wind
  • Mon 11:00: Poor (0.27) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (69 hours)
  • Wind (69 hours)
  • Tide/current (60 hours)

Jellyfish drift risk

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

Low · 34/100

Low drift risk now.

warm water supports seasonal jellyfish activity; 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: Sun 02:00

Sun 02:00, Sun 14:00, Mon 02:00, Mon 15:00

Nearby alternatives in Cook Islands

Aitutaki Lagoon

265 km away

❌ Poor

Advanced forecast data

Viewing historical data

Tue 02:00 – Fri 02:00 (-10)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.21 around Tue 13:00; 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 2.64m to 3.14m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 7.67 to 11.11m/s).

Tides range from 0.35m to 0.79m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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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 02:00 2.80 · high 8.31 · high 24.10 · good Poor
Tue 03:00 2.76 · high 7.67 · high 24.10 · good Poor
Tue 04:00 2.70 · high 7.82 · high 24.10 · good Poor
Tue 05:00 2.66 · high 8.61 · high 24.10 · good Poor
Tue 06:00 2.66 · high 9.64 · high 24.10 · good Poor
Tue 07:00 2.64 · high 10.13 · high 24.10 · good Poor
Tue 08:00 2.64 · high 10.40 · high 24.10 · good Poor
Tue 09:00 2.64 · high 10.00 · high 24.10 · good Poor
Tue 10:00 2.66 · high 11.11 · high 24.10 · good Poor
Tue 11:00 2.66 · high 9.52 · high 24.10 · good Poor
Tue 12:00 2.66 · high 10.20 · high 24.10 · good Poor
Tue 13:00 2.64 · high 10.17 · high 24.10 · good Poor
Tue 14:00 2.64 · high 10.30 · high 24.10 · good Poor
Tue 15:00 2.64 · high 10.02 · high 24.10 · good Poor
Tue 16:00 2.64 · high 10.20 · high 24.10 · good Poor
Tue 17:00 2.64 · high 9.83 · high 24.10 · good Poor
Tue 18:00 2.68 · high 9.73 · high 24.10 · good Poor
Tue 19:00 2.70 · high 9.74 · high 24.10 · good Poor
Tue 20:00 2.74 · high 10.60 · high 24.10 · good Poor
Tue 21:00 2.80 · high 10.72 · high 24.10 · good Poor
Tue 22:00 2.86 · high 11.07 · high 24.10 · good Poor
Tue 23:00 2.92 · high 10.86 · high 24.00 · good Poor
Wed 00:00 3.02 · high 11.05 · high 24.00 · good Poor
Wed 01:00 3.14 · high 10.97 · high 24.00 · good Poor
Wed 02:00 3.20 · high 10.77 · high 24.00 · good Poor
Wed 03:00 3.28 · high 10.56 · high 24.00 · good Poor
Wed 04:00 3.34 · high 10.25 · high 24.00 · good Poor
Wed 05:00 3.42 · high 11.15 · high 24.00 · good Poor
Wed 06:00 3.36 · high 11.76 · high 24.00 · good Poor
Wed 07:00 3.40 · high 10.99 · high 24.00 · good Poor
Wed 08:00 3.44 · high 10.45 · high 24.00 · good Poor
Wed 09:00 3.44 · high 10.20 · high 24.00 · good Poor
Wed 10:00 3.42 · high 9.66 · high 24.10 · good Poor
Wed 11:00 3.42 · high 9.20 · high 24.10 · good Poor
Wed 12:00 3.40 · high 8.64 · high 24.10 · good Poor
Wed 13:00 3.38 · high 10.02 · high 24.20 · good Poor
Wed 14:00 3.36 · high 8.92 · high 24.20 · good Poor
Wed 15:00 3.38 · high 8.29 · high 24.20 · good Poor
Wed 16:00 3.40 · high 9.85 · high 24.20 · good Poor
Wed 17:00 3.42 · high 9.76 · high 24.20 · good Poor
Wed 18:00 3.46 · high 9.95 · high 24.10 · good Poor
Wed 19:00 3.50 · high 10.22 · high 24.10 · good Poor
Wed 20:00 3.54 · high 10.77 · high 24.10 · good Poor
Wed 21:00 3.54 · high 11.22 · high 24.10 · good Poor
Wed 22:00 3.54 · high 9.40 · high 24.10 · good Poor
Wed 23:00 3.54 · high 11.70 · high 24.10 · good Poor
Thu 00:00 3.50 · high 11.39 · high 24.10 · good Poor
Thu 01:00 3.50 · high 11.13 · high 24.10 · good Poor
Thu 02:00 3.46 · high 10.56 · high 24.10 · good Poor
Thu 03:00 3.42 · high 11.46 · high 24.10 · good Poor
Thu 04:00 3.36 · high 11.00 · high 24.10 · good Poor
Thu 05:00 3.38 · high 11.82 · high 24.10 · good Poor
Thu 06:00 3.34 · high 11.94 · high 24.10 · good Poor
Thu 07:00 3.32 · high 12.02 · high 24.10 · good Poor
Thu 08:00 3.28 · high 12.19 · high 24.10 · good Poor
Thu 09:00 3.24 · high 11.84 · high 24.10 · good Poor
Thu 10:00 3.20 · high 11.44 · high 24.20 · good Poor
Thu 11:00 3.16 · high 11.09 · high 24.20 · good Poor
Thu 12:00 3.12 · high 10.84 · high 24.20 · good Poor
Thu 13:00 3.06 · high 10.54 · high 24.20 · good Poor
Thu 14:00 3.02 · high 11.10 · high 24.20 · good Poor
Thu 15:00 2.98 · high 10.80 · high 24.20 · good Poor
Thu 16:00 2.96 · high 10.42 · high 24.20 · good Poor
Thu 17:00 2.92 · high 9.93 · high 24.20 · good Poor
Thu 18:00 2.88 · high 9.93 · high 24.20 · good Poor
Thu 19:00 2.86 · high 10.14 · high 24.20 · good Poor
Thu 20:00 2.82 · high 9.69 · high 24.20 · good Poor
Thu 21:00 2.78 · high 9.22 · high 24.20 · good Poor
Thu 22:00 2.74 · high 8.77 · high 24.20 · good Poor
Thu 23:00 2.70 · high 8.72 · high 24.20 · good Poor
Fri 00:00 2.66 · high 8.79 · high 24.20 · good Poor
Fri 01:00 2.70 · high 7.88 · high 24.20 · good Poor