Kealakekua Bay Snorkel Report Today

USA · Updated Tue 03:12 (HST) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Thu 04:01

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

Score: 4.9/10

Best time: Thu 13:00

Main risk: Waves

Best morning signal: Thu 06:00 (Fair).

Best afternoon signal: Thu 13:00 (Fair). Peak afternoon wind is about 0.6 m/s.

Sunrise

05:56

Sunset

19:03

Water

27.0°C

Max air

28.2°C

Sky

Clear

6% cloud

No safe window in the next 72 hours

Use the best-available section for the least-bad times.

3-day planner

Thursday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Thu 23:00 — Fair (0.49) · still limited by waves, tide/current
  • Thu 16:00 — Fair (0.49) · still limited by waves, tide/current
  • Thu 22:00 — Fair (0.48) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (12 hours)
  • Tide/current (12 hours)
  • Darkness (4 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.

Tours and water activities near Kealakekua Bay

Local operators found via Tripadvisor. Check conditions before you book.

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Nearby snorkel spot map

Compare nearby spots by score, forecast window and exposure before choosing a beach.

Nearby alternatives in USA

Advanced forecast data

Viewing historical data

Mon 14:00 – Thu 14:00 (HST)

Snorkel Score (selected 24h)

Best snorkel score is 0.52 around Mon 08:00; 6 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 0.94m to 0.98m).

Wind is at or below 5.4m/s in 19/24 sampled hours (range 0.2 to 7.2m/s).

Tides range from 0.28m to 1.09m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
poor ❌ Limited
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
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
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
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
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
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
Mon 14:00 0.98 · high 3.30 · good 27.50 · good poor
Mon 15:00 0.98 · high 3.60 · good 27.40 · good poor
Mon 16:00 0.98 · high 3.20 · good 27.40 · good fair
Mon 17:00 0.96 · high 3.00 · good 27.40 · good fair
Mon 18:00 0.96 · high 0.60 · good 27.40 · good fair
Mon 19:00 0.96 · high 1.60 · good 27.50 · good fair
Mon 20:00 0.96 · high 3.60 · good 27.70 · good fair
Mon 21:00 0.96 · high 5.20 · good 27.90 · good fair
Mon 22:00 0.96 · high 4.90 · good 28.10 · good poor
Mon 23:00 0.94 · high 7.00 · high 28.30 · good poor
Tue 00:00 0.94 · high 4.60 · good 28.40 · good poor
Tue 01:00 0.94 · high 4.30 · good 28.40 · good poor
Tue 02:00 0.94 · high 5.50 · high 28.40 · good poor
Tue 03:00 0.94 · high 2.50 · good 28.30 · good poor
Tue 04:00 0.94 · high 2.00 · good 28.30 · good poor
Tue 05:00 0.94 · high 2.70 · good 28.20 · good poor
Tue 06:00 0.94 · high 3.70 · good 28.10 · good poor
Tue 07:00 0.94 · high 4.60 · good 28.10 · good poor
Tue 08:00 0.94 · high 1.80 · good 28.00 · good poor
Tue 09:00 0.94 · high 1.20 · good 27.90 · good poor
Tue 10:00 0.94 · high 0.20 · good 27.80 · good poor
Tue 11:00 0.94 · high 6.40 · high 27.70 · good poor
Tue 12:00 0.94 · high 7.10 · high 27.70 · good poor
Tue 13:00 0.94 · high 7.20 · high 27.60 · good poor
Tue 14:00 0.94 · high 4.80 · good 27.60 · good poor
Tue 15:00 0.94 · high 2.50 · good 27.60 · good poor
Tue 16:00 0.94 · high 2.70 · good 27.50 · good fair
Tue 17:00 0.94 · high 3.90 · good 27.50 · good fair
Tue 18:00 0.94 · high 2.30 · good 27.60 · good fair
Tue 19:00 0.94 · high 2.80 · good 27.60 · good fair
Tue 20:00 0.92 · high 2.30 · good 27.70 · good fair
Tue 21:00 0.92 · high 4.50 · good 27.90 · good poor
Tue 22:00 0.92 · high 6.20 · high 28.00 · good poor
Tue 23:00 0.92 · high 7.20 · high 28.10 · good poor
Wed 00:00 0.92 · high 6.30 · high 28.20 · good poor
Wed 01:00 0.92 · high 4.90 · good 28.20 · good poor
Wed 02:00 0.92 · high 2.00 · good 28.20 · good poor
Wed 03:00 0.92 · high 1.40 · good 28.20 · good poor
Wed 04:00 0.92 · high 2.20 · good 28.20 · good poor
Wed 05:00 0.92 · high 1.70 · good 28.20 · good poor
Wed 06:00 0.92 · high 1.40 · good 28.10 · good poor
Wed 07:00 0.92 · high 3.10 · good 28.10 · good poor
Wed 08:00 0.92 · high 3.80 · good 28.00 · good poor
Wed 09:00 0.92 · high 1.90 · good 28.00 · good poor
Wed 10:00 0.92 · high 1.50 · good 27.90 · good poor
Wed 11:00 0.92 · high 1.70 · good 27.90 · good poor
Wed 12:00 0.92 · high 2.30 · good 27.80 · good poor
Wed 13:00 0.92 · high 1.40 · good 27.80 · good poor
Wed 14:00 0.90 · high 2.00 · good 27.70 · good poor
Wed 15:00 0.90 · high 1.70 · good 27.70 · good poor
Wed 16:00 0.90 · high 0.60 · good 27.60 · good fair
Wed 17:00 0.88 · high 3.30 · good 27.60 · good fair
Wed 18:00 0.88 · high 1.90 · good 27.60 · good fair
Wed 19:00 0.88 · high 0.20 · good 27.70 · good fair
Wed 20:00 0.88 · high 2.90 · good 27.90 · good fair
Wed 21:00 0.88 · high 3.60 · good 28.00 · good fair
Wed 22:00 0.88 · high 4.90 · good 28.20 · good fair
Wed 23:00 0.86 · high 5.90 · high 28.30 · good fair
Thu 00:00 0.86 · high 5.40 · good 28.40 · good poor
Thu 01:00 0.86 · high 3.60 · good 28.40 · good poor
Thu 02:00 0.88 · high 1.60 · good 28.40 · good poor
Thu 03:00 0.88 · high 2.30 · good 28.40 · good poor
Thu 04:00 0.88 · high 3.40 · good 28.30 · good poor
Thu 05:00 0.88 · high 3.90 · good 28.20 · good poor
Thu 06:00 0.88 · high 4.70 · good 28.20 · good poor
Thu 07:00 0.88 · high 4.40 · good 28.10 · good poor
Thu 08:00 0.88 · high 3.00 · good 28.10 · good poor
Thu 09:00 0.88 · high 2.60 · good 28.00 · good poor
Thu 10:00 0.88 · high 1.50 · good 27.90 · good poor
Thu 11:00 0.90 · high 2.70 · good 27.90 · good poor
Thu 12:00 0.90 · high 4.80 · good 27.80 · good poor
Thu 13:00 0.90 · high 6.60 · high 27.80 · good poor