MARINE REPORT / 72 HOURS

Rarotonga Snorkel Report Today

Cook Islands · Updated Sat 22:21 (-10) · Source: Snapshot

The skinny

Marginal Data updated Sat 22:21 (-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 00:00 (-10)

Later today

Poor · 3.0/10

Sun 13:00 (-10)

Next three days

Fair · 4.3/10

Tue 11:00 (-10)

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

Score: 3.0/10

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 7.6 m/s.

Email me when it is good

Sunrise

06:05

Sunset

18:43

Water

24.2°C

Max air

23.4°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

Sunday

❌ Poor conditions

Main blocker: Waves

Monday

❌ Poor conditions

Main blocker: Waves

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Tue 11:00: Fair (0.43) · still limited by waves, tide/current
  • Tue 09:00: Fair (0.41) · still limited by waves, wind
  • Tue 12:00: Fair (0.41) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (69 hours)
  • Wind (64 hours)
  • Tide/current (50 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Sun 07:00.

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, Tue 16:00

Nearby alternatives in Cook Islands

Aitutaki Lagoon

265 km away

❌ Poor

Advanced forecast data

Viewing historical data

Fri 00:00 – Mon 00:00 (-10)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.43 around Fri 13:00; 4 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 1.9m to 2.52m).

Wind is at or below 5.4m/s in 8/24 sampled hours (range 4.65 to 6.55m/s).

Tides range from 0.23m to 0.76m; 1 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
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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
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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
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Poor ❌ Limited
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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
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
Fri 00:00 2.48 · high 6.47 · high 22.80 · good Poor
Fri 01:00 2.52 · high 6.55 · high 22.70 · good Poor
Fri 02:00 2.48 · high 5.69 · high 22.70 · good Poor
Fri 03:00 2.44 · high 4.85 · good 22.70 · good Poor
Fri 04:00 2.40 · high 5.48 · high 22.70 · good Poor
Fri 05:00 2.36 · high 5.48 · high 22.70 · good Poor
Fri 06:00 2.32 · high 5.77 · high 22.60 · good Poor
Fri 07:00 2.30 · high 5.46 · high 22.60 · good Poor
Fri 08:00 2.26 · high 5.52 · high 22.60 · good Poor
Fri 09:00 2.22 · high 5.53 · high 22.60 · good Poor
Fri 10:00 2.20 · high 5.79 · high 22.70 · good Fair
Fri 11:00 2.16 · high 5.74 · high 22.70 · good Fair
Fri 12:00 2.14 · high 5.27 · good 22.70 · good Fair
Fri 13:00 2.10 · high 5.42 · high 22.70 · good Fair
Fri 14:00 2.14 · high 5.52 · high 22.70 · good Poor
Fri 15:00 2.12 · high 5.21 · good 22.70 · good Poor
Fri 16:00 2.10 · high 5.34 · good 22.70 · good Poor
Fri 17:00 2.08 · high 5.47 · high 22.70 · good Poor
Fri 18:00 2.06 · high 5.20 · good 22.60 · good Poor
Fri 19:00 2.02 · high 5.76 · high 22.60 · good Poor
Fri 20:00 2.00 · high 4.81 · good 22.60 · good Poor
Fri 21:00 1.96 · high 5.64 · high 22.60 · good Poor
Fri 22:00 1.94 · high 4.96 · good 22.50 · good Poor
Fri 23:00 1.90 · high 4.65 · good 22.50 · good Poor
Sat 00:00 1.88 · high 4.55 · good 22.50 · good Poor
Sat 01:00 1.86 · high 4.10 · good 22.50 · good Poor
Sat 02:00 1.88 · high 3.54 · good 22.50 · good Poor
Sat 03:00 1.86 · high 3.39 · good 22.50 · good Poor
Sat 04:00 1.82 · high 2.96 · good 22.40 · good Poor
Sat 05:00 1.80 · high 2.59 · good 22.40 · good Poor
Sat 06:00 1.76 · high 2.86 · good 22.40 · good Poor
Sat 07:00 1.74 · high 3.11 · good 22.40 · good Fair
Sat 08:00 1.74 · high 4.01 · good 22.40 · good Fair
Sat 09:00 1.72 · high 4.29 · good 22.40 · good Fair
Sat 10:00 1.70 · high 3.72 · good 22.50 · good Fair
Sat 11:00 1.68 · high 3.87 · good 22.60 · good Fair
Sat 12:00 1.66 · high 3.80 · good 22.60 · good Fair
Sat 13:00 1.62 · high 3.66 · good 22.70 · good Fair
Sat 14:00 1.60 · high 3.55 · good 22.70 · good Poor
Sat 15:00 1.58 · high 3.76 · good 22.70 · good Poor
Sat 16:00 1.56 · high 3.22 · good 22.70 · good Poor
Sat 17:00 1.54 · high 3.05 · good 22.70 · good Poor
Sat 18:00 1.52 · high 3.45 · good 22.60 · good Poor
Sat 19:00 1.50 · high 3.51 · good 22.60 · good Poor
Sat 20:00 1.48 · high 2.75 · good 22.60 · good Poor
Sat 21:00 1.48 · high 2.77 · good 22.50 · good Poor
Sat 22:00 1.46 · high 2.85 · good 22.50 · good Poor
Sat 23:00 1.46 · high 3.37 · good 22.50 · good Poor
Sun 00:00 1.46 · high 3.96 · good 22.50 · good Poor
Sun 01:00 1.44 · high 2.51 · good 22.50 · good Poor
Sun 02:00 1.44 · high 2.72 · good 22.50 · good Poor
Sun 03:00 1.44 · high 3.39 · good 22.50 · good Poor
Sun 04:00 1.42 · high 3.76 · good 22.50 · good Poor
Sun 05:00 1.40 · high 3.47 · good 22.50 · good Poor
Sun 06:00 1.40 · high 3.82 · good 22.50 · good Poor
Sun 07:00 1.38 · high 3.13 · good 22.50 · good Fair
Sun 08:00 1.38 · high 3.49 · good 22.50 · good Fair
Sun 09:00 1.38 · high 4.78 · good 22.50 · good Fair
Sun 10:00 1.38 · high 5.15 · good 22.50 · good Fair
Sun 11:00 1.38 · high 4.96 · good 22.60 · good Fair
Sun 12:00 1.38 · high 5.02 · good 22.60 · good Fair
Sun 13:00 1.40 · high 4.46 · good 22.60 · good Fair
Sun 14:00 1.40 · high 4.91 · good 22.70 · good Poor
Sun 15:00 1.42 · high 4.62 · good 22.70 · good Poor
Sun 16:00 1.42 · high 4.01 · good 22.70 · good Poor
Sun 17:00 1.44 · high 4.61 · good 22.70 · good Poor
Sun 18:00 1.46 · high 4.18 · good 22.70 · good Poor
Sun 19:00 1.46 · high 4.02 · good 22.70 · good Poor
Sun 20:00 1.48 · high 4.32 · good 22.70 · good Poor
Sun 21:00 1.50 · high 4.82 · good 22.70 · good Poor
Sun 22:00 1.54 · high 4.36 · good 22.70 · good Poor
Sun 23:00 1.56 · high 3.46 · good 22.70 · good Poor