SnorkelForecast.com

Rarotonga Snorkel Report Today

Cook Islands · Updated Sat 05:03 (-10) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Sat 20:26

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

Score: 4.2/10

Best time: Mon 13:00

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

07:15

Sunset

18:15

Water

23.6°C

Max air

20.1°C

Sky

Cloudy

98% cloud

No safe 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

⚠️ fair conditions

Main blocker: Waves

Monday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Mon 23:00 — Fair (0.45) · still limited by waves, wind
  • Mon 22:00 — Fair (0.43) · still limited by waves, wind
  • Sun 20:00 — Fair (0.42) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (46 hours)
  • Wind (45 hours)
  • Darkness (34 hours)

Jellyfish drift risk

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

Low · 23/100

Low peak drift risk around Sun 01:00.

water is warm enough for occasional jellyfish; 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 11:00

Sun 11:00, Sun 23:00, Mon 11:00, Tue 00:00

Nearby alternatives in Cook Islands

Aitutaki Lagoon

265 km away

❌ Poor

Advanced forecast data

Viewing historical data

Fri 06:00 – Mon 06:00 (-10)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.49 around Fri 11:00; 5 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 2.7m to 3.24m).

Wind is at or below 5.4m/s in 1/24 sampled hours (range 5.09 to 8.08m/s).

Tides range from 0.23m to 0.97m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
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fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
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fair ⚠️ Fair
fair ⚠️ Fair
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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Fri 06:00 3.24 · high 7.53 · high 23.60 · good poor
Fri 07:00 3.22 · high 7.64 · high 23.60 · good poor
Fri 08:00 3.20 · high 7.44 · high 23.60 · good poor
Fri 09:00 3.18 · high 7.13 · high 23.60 · good poor
Fri 10:00 3.16 · high 6.96 · high 23.60 · good poor
Fri 11:00 3.14 · high 6.80 · high 23.50 · good poor
Fri 12:00 3.12 · high 6.76 · high 23.50 · good poor
Fri 13:00 3.10 · high 6.71 · high 23.50 · good poor
Fri 14:00 3.08 · high 6.22 · high 23.50 · good poor
Fri 15:00 3.06 · high 6.41 · high 23.50 · good poor
Fri 16:00 3.04 · high 6.75 · high 23.50 · good poor
Fri 17:00 3.00 · high 6.43 · high 23.50 · good poor
Fri 18:00 2.98 · high 7.04 · high 23.50 · good poor
Fri 19:00 2.96 · high 7.18 · high 23.50 · good fair
Fri 20:00 2.92 · high 6.57 · high 23.50 · good fair
Fri 21:00 2.90 · high 5.09 · good 23.50 · good fair
Fri 22:00 2.86 · high 6.36 · high 23.50 · good fair
Fri 23:00 2.82 · high 6.63 · high 23.50 · good fair
Sat 00:00 2.78 · high 6.78 · high 23.50 · good poor
Sat 01:00 2.76 · high 6.69 · high 23.50 · good poor
Sat 02:00 2.74 · high 6.97 · high 23.50 · good poor
Sat 03:00 2.72 · high 6.75 · high 23.50 · good poor
Sat 04:00 2.72 · high 7.73 · high 23.50 · good poor
Sat 05:00 2.70 · high 8.08 · high 23.40 · good poor
Sat 06:00 2.66 · high 9.61 · high 23.60 · good poor
Sat 07:00 2.64 · high 9.58 · high 23.60 · good poor
Sat 08:00 2.64 · high 9.12 · high 23.60 · good poor
Sat 09:00 2.62 · high 9.54 · high 23.60 · good poor
Sat 10:00 2.64 · high 8.39 · high 23.60 · good poor
Sat 11:00 2.68 · high 9.49 · high 23.60 · good poor
Sat 12:00 2.70 · high 9.86 · high 23.60 · good poor
Sat 13:00 2.80 · high 9.88 · high 23.60 · good poor
Sat 14:00 2.90 · high 11.38 · high 23.60 · good poor
Sat 15:00 3.00 · high 11.46 · high 23.60 · good poor
Sat 16:00 3.10 · high 11.34 · high 23.60 · good poor
Sat 17:00 3.20 · high 11.20 · high 23.60 · good poor
Sat 18:00 3.30 · high 10.80 · high 23.60 · good poor
Sat 19:00 3.34 · high 10.57 · high 23.60 · good poor
Sat 20:00 3.38 · high 8.98 · high 23.60 · good poor
Sat 21:00 3.42 · high 9.19 · high 23.60 · good poor
Sat 22:00 3.42 · high 8.59 · high 23.60 · good poor
Sat 23:00 3.42 · high 8.43 · high 23.60 · good poor
Sun 00:00 3.42 · high 8.76 · high 23.60 · good poor
Sun 01:00 3.42 · high 7.70 · high 23.60 · good poor
Sun 02:00 3.44 · high 8.73 · high 23.60 · good poor
Sun 03:00 3.44 · high 7.72 · high 23.60 · good poor
Sun 04:00 3.42 · high 7.92 · high 23.60 · good poor
Sun 05:00 3.40 · high 7.51 · high 23.60 · good poor
Sun 06:00 3.38 · high 7.83 · high 23.60 · good poor
Sun 07:00 3.34 · high 7.79 · high 23.60 · good poor
Sun 08:00 3.32 · high 7.30 · high 23.60 · good poor
Sun 09:00 3.28 · high 7.70 · high 23.60 · good poor
Sun 10:00 3.24 · high 8.61 · high 23.60 · good poor
Sun 11:00 3.20 · high 7.40 · high 23.60 · good poor
Sun 12:00 3.16 · high 7.30 · high 23.60 · good poor
Sun 13:00 3.12 · high 7.27 · high 23.60 · good poor
Sun 14:00 3.10 · high 6.23 · high 23.60 · good poor
Sun 15:00 3.06 · high 6.74 · high 23.60 · good poor
Sun 16:00 3.04 · high 7.25 · high 23.50 · good poor
Sun 17:00 3.02 · high 7.45 · high 23.50 · good poor
Sun 18:00 3.00 · high 7.79 · high 23.50 · good poor
Sun 19:00 2.98 · high 7.85 · high 23.50 · good fair
Sun 20:00 2.94 · high 5.96 · high 23.50 · good fair
Sun 21:00 2.92 · high 6.62 · high 23.50 · good poor
Sun 22:00 2.92 · high 7.39 · high 23.50 · good poor
Sun 23:00 2.90 · high 6.83 · high 23.50 · good poor
Mon 00:00 2.90 · high 6.87 · high 23.50 · good poor
Mon 01:00 2.90 · high 7.14 · high 23.50 · good poor
Mon 02:00 2.92 · high 7.20 · high 23.50 · good poor
Mon 03:00 2.92 · high 7.55 · high 23.50 · good poor
Mon 04:00 2.94 · high 7.75 · high 23.50 · good poor
Mon 05:00 2.94 · high 7.61 · high 23.50 · good poor