SnorkelForecast.com

Rarotonga Snorkel Report Today

Cook Islands · Updated Tue 04:15 (-10) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Wed 07:01

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

Score: 3.9/10

Best time: Wed 13:00

Main risk: Waves

Best morning signal: Wed 09:00 (Fair).

Best afternoon signal: Wed 13:00 (Fair). Peak afternoon wind is about 7.8 m/s.

Email me when it is good

Sunrise

07:14

Sunset

18:16

Water

23.6°C

Max air

22.9°C

Sky

Partly cloudy

65% 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

Wednesday

⚠️ fair conditions

Main blocker: Waves

Thursday

❌ poor conditions

Main blocker: Waves

Best available hours

  • Wed 23:00 — Fair (0.39) · still limited by waves, wind
  • Wed 19:00 — Fair (0.38) · still limited by waves, wind
  • Wed 21:00 — Fair (0.36) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (34 hours)
  • Wind (30 hours)
  • Tide/current (28 hours)

Jellyfish drift risk

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

Low · 26/100

Low peak drift risk around Thu 04:00.

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: Thu 14:00

Thu 14:00

Nearby alternatives in Cook Islands

Aitutaki Lagoon

265 km away

❌ Poor

Advanced forecast data

Viewing historical data

Wed 17:00 – Sat 17:00 (-10)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.39 around Wed 09:00; 3 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 2.5m to 3.16m).

Wind is at or below 5.4m/s in 4/24 sampled hours (range 4.7 to 19.3m/s).

Tides range from 0.38m to 0.89m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
poor ❌ Limited
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
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
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
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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Wed 17:00 2.50 · high 19.30 · high 24.70 · good poor
Wed 18:00 2.54 · high 16.30 · high 24.70 · good poor
Wed 19:00 2.58 · high 15.70 · high 24.70 · good fair
Wed 20:00 2.62 · high 15.20 · high 24.70 · good fair
Wed 21:00 2.66 · high 15.40 · high 24.70 · good fair
Wed 22:00 2.70 · high 15.10 · high 24.70 · good poor
Wed 23:00 2.74 · high 13.80 · high 24.70 · good poor
Thu 00:00 2.78 · high 11.80 · high 24.70 · good poor
Thu 01:00 2.82 · high 11.00 · high 24.70 · good poor
Thu 02:00 2.86 · high 10.50 · high 24.70 · good poor
Thu 03:00 2.90 · high 10.00 · high 24.70 · good poor
Thu 04:00 2.94 · high 11.40 · high 24.70 · good poor
Thu 05:00 2.96 · high 10.70 · high 24.70 · good poor
Thu 06:00 3.00 · high 7.60 · high 24.70 · good poor
Thu 07:00 3.02 · high 9.30 · high 24.70 · good poor
Thu 08:00 3.06 · high 8.60 · high 24.70 · good poor
Thu 09:00 3.08 · high 9.20 · high 24.70 · good poor
Thu 10:00 3.10 · high 8.60 · high 24.80 · good poor
Thu 11:00 3.12 · high 4.80 · good 24.80 · good poor
Thu 12:00 3.14 · high 4.90 · good 24.80 · good poor
Thu 13:00 3.14 · high 5.90 · high 24.80 · good poor
Thu 14:00 3.16 · high 4.70 · good 24.80 · good poor
Thu 15:00 3.16 · high 5.20 · good 24.80 · good poor
Thu 16:00 3.16 · high 9.00 · high 24.80 · good poor
Thu 17:00 3.16 · high 11.70 · high 24.80 · good poor
Thu 18:00 3.16 · high 14.80 · high 24.80 · good poor
Thu 19:00 3.14 · high 13.10 · high 24.80 · good poor
Thu 20:00 3.12 · high 16.60 · high 24.80 · good poor
Thu 21:00 3.10 · high 11.70 · high 24.80 · good poor
Thu 22:00 3.06 · high 12.60 · high 24.80 · good poor
Thu 23:00 3.02 · high 15.20 · high 24.80 · good poor
Fri 00:00 2.98 · high 19.60 · high 24.80 · good poor
Fri 01:00 2.94 · high 23.00 · high 24.80 · good poor
Fri 02:00 2.92 · high 23.30 · high 24.80 · good poor
Fri 03:00 2.88 · high 25.30 · high 24.70 · good poor
Fri 04:00 2.86 · high 16.00 · high 24.70 · good poor
Fri 05:00 2.84 · high 22.90 · high 24.70 · good poor
Fri 06:00 2.82 · high 18.10 · high 24.70 · good poor
Fri 07:00 2.80 · high 22.30 · high 24.70 · good poor
Fri 08:00 2.78 · high 22.00 · high 24.70 · good poor
Fri 09:00 2.76 · high 20.80 · high 24.70 · good poor
Fri 10:00 2.76 · high 23.00 · high 24.70 · good poor
Fri 11:00 2.80 · high 30.00 · high 24.70 · good poor
Fri 12:00 2.78 · high 30.70 · high 24.70 · good poor
Fri 13:00 2.76 · high 29.80 · high 24.70 · good poor
Fri 14:00 2.72 · high 27.70 · high 24.70 · good poor
Fri 15:00 2.70 · high 29.50 · high 24.70 · good poor
Fri 16:00 2.66 · high 28.30 · high 24.70 · good poor
Fri 17:00 2.64 · high 28.70 · high 24.70 · good poor
Fri 18:00 2.60 · high 23.70 · high 24.70 · good poor
Fri 19:00 2.58 · high 22.00 · high 24.70 · good poor
Fri 20:00 2.56 · high 20.90 · high 24.70 · good poor
Fri 21:00 2.54 · high 25.30 · high 24.70 · good poor
Fri 22:00 2.52 · high 22.60 · high 24.70 · good poor
Fri 23:00 2.48 · high 19.30 · high 24.70 · good poor
Sat 00:00 2.46 · high 20.20 · high 24.70 · good poor
Sat 01:00 2.44 · high 17.60 · high 24.70 · good poor
Sat 02:00 2.42 · high 19.80 · high 24.70 · good poor
Sat 03:00 2.40 · high 20.10 · high 24.70 · good poor
Sat 04:00 2.40 · high 17.70 · high 24.70 · good poor
Sat 05:00 2.38 · high 20.40 · high 24.70 · good poor
Sat 06:00 2.38 · high 20.10 · high 24.70 · good poor
Sat 07:00 2.38 · high 20.10 · high 24.70 · good poor
Sat 08:00 2.38 · high 19.70 · high 24.70 · good poor
Sat 09:00 2.38 · high 17.50 · high 24.70 · good poor
Sat 10:00 2.38 · high 14.60 · high 24.70 · good poor
Sat 11:00 2.40 · high 3.90 · good 24.70 · good poor
Sat 12:00 2.40 · high 5.50 · high 24.70 · good poor
Sat 13:00 2.40 · high 5.40 · good 24.70 · good poor
Sat 14:00 2.38 · high 7.70 · high 24.70 · good poor
Sat 15:00 2.38 · high 9.20 · high 24.70 · good poor
Sat 16:00 2.38 · high 7.00 · high 24.70 · good poor