SnorkelForecast.com

Kealakekua Bay Snorkel Report Today

USA · Updated Sat 04:01 (HST) · Source: Snapshot

The skinny

Marginal Report Sat 10:51

Kealakekua Bay looks marginal today. The least-bad daylight window is around Mon 10:00, but waves is limiting the forecast.

Score: 4.9/10

Best time: Mon 10:00

Main risk: Waves

Best morning signal: Sat 11:00 (Fair).

Best afternoon signal: Sat 12:00 (Fair). Peak afternoon wind is about 1.0 m/s.

Email me when it is good Compare nearby spots Tours & water activities

Best nearby spots

Two Step Honaunau 5.1/10 Fair · Mon 20:00 Anaehoomalu Bay 4.3/10 Fair · Sat 21:00 Kahaluu Beach Park 4.1/10 Fair · Sat 21:00

Sunrise

05:55

Sunset

19:04

Water

27.6°C

Max air

29.6°C

Sky

Partly cloudy

41% 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

⚠️ fair conditions

Main blocker: Waves

Sunday

⚠️ fair conditions

Main blocker: Waves

Monday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Mon 20:00 — Fair (0.51) · still limited by waves, tide/current
  • Mon 21:00 — Fair (0.50) · still limited by waves, tide/current
  • Mon 19:00 — Fair (0.50) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (55 hours)
  • Tide/current (55 hours)
  • Darkness (36 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

Next early morning high tide: Sun 18:00

Sun 18:00, Mon 05:00, Mon 19:00

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.

Two Step Honaunau Fair · Mon 20:00 5.1/10 Anaehoomalu Bay Fair · Sat 21:00 4.3/10 Kahaluu Beach Park Fair · Sat 21:00 4.1/10

Nearby alternatives in USA

Two Step Honaunau

7 km away

⚠️ Fair

Kahaluu Beach Park

12 km away

⚠️ Fair

Big Island

29 km away

❌ Poor

Anaehoomalu Bay

49 km away

⚠️ Fair

Advanced forecast data

Viewing live forecast

Sat 20:00 – Tue 20:00 (HST)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.49 around Sat 12:00; 8 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 0.98m to 1.0m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.18 to 2.02m/s).

Tides range from 0.27m to 0.86m; 1 of 24 hours are in or near peak slack windows.

72-hour forecast overview
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
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
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
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
Sat 21:00 0.98 · high 0.67 · good 27.60 · good fair
Sat 22:00 0.98 · high 0.45 · good 27.70 · good fair
Sat 23:00 0.98 · high 1.01 · good 27.90 · good fair
Sun 00:00 0.98 · high 0.96 · good 27.90 · good poor
Sun 01:00 0.98 · high 0.68 · good 27.90 · good poor
Sun 02:00 0.98 · high 0.75 · good 27.90 · good poor
Sun 03:00 0.98 · high 0.82 · good 27.80 · good poor
Sun 04:00 0.98 · high 2.02 · good 27.70 · good poor
Sun 05:00 0.98 · high 1.72 · good 27.60 · good poor
Sun 06:00 0.98 · high 1.12 · good 27.60 · good poor
Sun 07:00 0.98 · high 0.57 · good 27.50 · good poor
Sun 08:00 0.98 · high 0.18 · good 27.40 · good poor
Sun 09:00 0.98 · high 0.95 · good 27.40 · good poor
Sun 10:00 0.98 · high 1.67 · good 27.30 · good poor
Sun 11:00 0.98 · high 1.75 · good 27.30 · good poor
Sun 12:00 0.98 · high 1.38 · good 27.20 · good poor
Sun 13:00 0.98 · high 1.10 · good 27.20 · good poor
Sun 14:00 0.98 · high 0.60 · good 27.10 · good poor
Sun 15:00 0.98 · high 0.29 · good 27.10 · good poor
Sun 16:00 0.98 · high 0.47 · good 27.10 · good fair
Sun 17:00 0.98 · high 0.60 · good 27.10 · good fair
Sun 18:00 0.98 · high 0.51 · good 27.20 · good fair
Sun 19:00 0.98 · high 0.92 · good 27.30 · good fair
Sun 20:00 1.00 · high 0.97 · good 27.50 · good fair
Sun 21:00 1.00 · high 1.06 · good 27.70 · good fair
Sun 22:00 1.00 · high 1.57 · good 27.90 · good fair
Sun 23:00 1.00 · high 1.93 · good 28.00 · good fair
Mon 00:00 1.00 · high 2.01 · good 28.10 · good poor
Mon 01:00 1.00 · high 1.50 · good 28.10 · good poor
Mon 02:00 1.02 · high 0.95 · good 28.10 · good poor
Mon 03:00 1.02 · high 0.96 · good 28.10 · good poor
Mon 04:00 1.02 · high 1.31 · good 28.00 · good poor
Mon 05:00 1.04 · high 1.03 · good 27.90 · good poor
Mon 06:00 1.04 · high 0.46 · good 27.80 · good poor
Mon 07:00 1.04 · high 0.91 · good 27.80 · good poor
Mon 08:00 1.04 · high 0.96 · good 27.70 · good poor
Mon 09:00 1.04 · high 0.51 · good 27.60 · good poor
Mon 10:00 1.04 · high 0.41 · good 27.60 · good poor
Mon 11:00 1.04 · high 0.45 · good 27.50 · good poor
Mon 12:00 1.04 · high 0.25 · good 27.50 · good poor
Mon 13:00 1.04 · high 0.81 · good 27.40 · good poor
Mon 14:00 1.04 · high 0.85 · good 27.40 · good poor
Mon 15:00 1.04 · high 1.23 · good 27.30 · good poor
Mon 16:00 1.04 · high 0.94 · good 27.30 · good fair
Mon 17:00 1.04 · high 1.43 · good 27.30 · good fair
Mon 18:00 1.04 · high 1.35 · good 27.30 · good fair
Mon 19:00 1.04 · high 1.29 · good 27.40 · good fair
Mon 20:00 1.04 · high 1.03 · good 27.60 · good fair
Mon 21:00 1.04 · high 1.10 · good 27.80 · good fair
Mon 22:00 1.04 · high 1.24 · good 28.00 · good fair
Mon 23:00 1.04 · high 0.96 · good 28.20 · good fair
Tue 00:00 1.04 · high 1.14 · good 28.30 · good poor
Tue 01:00 1.04 · high 0.99 · good 28.30 · good poor
Tue 02:00 1.04 · high 0.81 · good 28.30 · good poor
Tue 03:00 1.04 · high 0.74 · good 28.30 · good poor