MARINE REPORT / 72 HOURS

Rarotonga Snorkel Report Today

Cook Islands · Updated Sun 05:01 (-10) · Source: Snapshot

The skinny

Marginal Data updated Sun 05:01 (-10)

Rarotonga looks marginal today. The least-bad daylight window is around Sun 13:00, but waves is limiting the forecast.

Right now (forecast)

Poor · 0.0/10

Sun 05:00 (-10)

Later today

Poor · 2.6/10

Sun 13:00 (-10)

Next three days

Fair · 4.5/10

Tue 12:00 (-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: Sun 13:00

Main risk: Waves

Best morning signal: Sun 09:00 (Poor).

Best afternoon signal: Sun 13:00 (Poor). Peak afternoon wind is about 10.2 m/s.

Email me when it is good

Sunrise

06:10

Sunset

18:40

Water

24.3°C

Max air

20.5°C

Sky

Clear

17% 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

Sunday

❌ Poor conditions

Main blocker: Waves

Monday

⚠️ Fair conditions

Main blocker: Waves

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Tue 12:00: Fair (0.45) · still limited by waves, wind
  • Tue 11:00: Fair (0.43) · still limited by waves, wind
  • Tue 13:00: Fair (0.40) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (71 hours)
  • Wind (71 hours)
  • Tide/current (69 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

Sun 10:00, Sun 22:00, Tue 11:00, Tue 23:00

Nearby alternatives in Cook Islands

Aitutaki Lagoon

265 km away

❌ Poor

Advanced forecast data

Viewing current forecast

Sun 05:00 – Wed 05:00 (-10)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.26 around Sun 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 2.38m to 2.98m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 8.69 to 11.75m/s).

Tides range from 0.27m to 0.98m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview
Poor ❌ Limited
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Fair ⚠️ Fair
Poor ❌ Limited
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Fair ⚠️ Fair
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Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
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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
Sun 06:00 2.38 · high 8.69 · high 24.30 · good Poor
Sun 07:00 2.38 · high 9.19 · high 24.30 · good Poor
Sun 08:00 2.40 · high 9.67 · high 24.30 · good Poor
Sun 09:00 2.44 · high 9.66 · high 24.30 · good Poor
Sun 10:00 2.50 · high 9.73 · high 24.40 · good Poor
Sun 11:00 2.54 · high 10.00 · high 24.40 · good Poor
Sun 12:00 2.58 · high 9.86 · high 24.40 · good Poor
Sun 13:00 2.62 · high 10.20 · high 24.40 · good Poor
Sun 14:00 2.66 · high 10.08 · high 24.40 · good Poor
Sun 15:00 2.70 · high 10.36 · high 24.40 · good Poor
Sun 16:00 2.76 · high 10.38 · high 24.40 · good Poor
Sun 17:00 2.80 · high 10.40 · high 24.40 · good Poor
Sun 18:00 2.86 · high 10.63 · high 24.40 · good Poor
Sun 19:00 2.92 · high 11.28 · high 24.40 · good Poor
Sun 20:00 2.98 · high 11.75 · high 24.40 · good Poor
Sun 21:00 2.98 · high 11.32 · high 24.40 · good Poor
Sun 22:00 2.98 · high 11.29 · high 24.40 · good Poor
Sun 23:00 2.98 · high 11.12 · high 24.40 · good Poor
Mon 00:00 2.94 · high 10.93 · high 24.40 · good Poor
Mon 01:00 2.92 · high 10.43 · high 24.40 · good Poor
Mon 02:00 2.88 · high 10.26 · high 24.40 · good Poor
Mon 03:00 2.86 · high 9.59 · high 24.40 · good Poor
Mon 04:00 2.84 · high 9.37 · high 24.40 · good Poor
Mon 05:00 2.82 · high 9.29 · high 24.40 · good Poor
Mon 06:00 2.82 · high 9.48 · high 24.40 · good Poor
Mon 07:00 2.80 · high 9.33 · high 24.40 · good Fair
Mon 08:00 2.80 · high 9.63 · high 24.40 · good Poor
Mon 09:00 2.82 · high 9.09 · high 24.40 · good Poor
Mon 10:00 2.84 · high 9.72 · high 24.40 · good Poor
Mon 11:00 2.86 · high 10.82 · high 24.50 · good Poor
Mon 12:00 2.84 · high 9.86 · high 24.50 · good Fair
Mon 13:00 2.82 · high 9.30 · high 24.50 · good Fair
Mon 14:00 2.80 · high 8.84 · high 24.50 · good Poor
Mon 15:00 2.78 · high 8.52 · high 24.50 · good Poor
Mon 16:00 2.74 · high 8.48 · high 24.50 · good Poor
Mon 17:00 2.72 · high 9.79 · high 24.50 · good Poor
Mon 18:00 2.70 · high 9.24 · high 24.50 · good Poor
Mon 19:00 2.70 · high 9.59 · high 24.50 · good Poor
Mon 20:00 2.68 · high 10.01 · high 24.50 · good Poor
Mon 21:00 2.68 · high 10.28 · high 24.50 · good Poor
Mon 22:00 2.70 · high 10.55 · high 24.50 · good Poor
Mon 23:00 2.70 · high 10.42 · high 24.50 · good Poor
Tue 00:00 2.72 · high 9.97 · high 24.40 · good Poor
Tue 01:00 2.72 · high 10.60 · high 24.40 · good Poor
Tue 02:00 2.74 · high 10.80 · high 24.40 · good Poor
Tue 03:00 2.74 · high 10.56 · high 24.40 · good Poor
Tue 04:00 2.72 · high 10.09 · high 24.40 · good Poor
Tue 05:00 2.72 · high 9.28 · high 24.40 · good Poor
Tue 06:00 2.70 · high 9.68 · high 24.40 · good Poor
Tue 07:00 2.66 · high 10.03 · high 24.40 · good Poor
Tue 08:00 2.64 · high 10.36 · high 24.40 · good Poor
Tue 09:00 2.58 · high 10.44 · high 24.40 · good Poor
Tue 10:00 2.54 · high 10.29 · high 24.40 · good Poor
Tue 11:00 2.48 · high 9.23 · high 24.50 · good Fair
Tue 12:00 2.42 · high 8.46 · high 24.50 · good Fair
Tue 13:00 2.38 · high 8.15 · high 24.50 · good Fair
Tue 14:00 2.32 · high 7.69 · high 24.50 · good Poor
Tue 15:00 2.30 · high 7.45 · high 24.50 · good Poor
Tue 16:00 2.28 · high 7.91 · high 24.50 · good Poor
Tue 17:00 2.26 · high 8.28 · high 24.40 · good Poor
Tue 18:00 2.24 · high 8.32 · high 24.40 · good Poor
Tue 19:00 2.22 · high 8.14 · high 24.40 · good Poor
Tue 20:00 2.20 · high 8.10 · high 24.40 · good Poor
Tue 21:00 2.18 · high 8.08 · high 24.40 · good Poor
Tue 22:00 2.16 · high 7.48 · high 24.40 · good Poor
Tue 23:00 2.14 · high 7.12 · high 24.30 · good Poor
Wed 00:00 2.12 · high 8.23 · high 24.30 · good Poor
Wed 01:00 2.10 · high 7.48 · high 24.30 · good Poor
Wed 02:00 2.08 · high 7.61 · high 24.30 · good Poor
Wed 03:00 2.06 · high 7.64 · high 24.30 · good Poor
Wed 04:00 2.04 · high 6.93 · high 24.30 · good Poor