MARINE REPORT / 72 HOURS

Kealakekua Bay Snorkel Report Today

USA · Updated Sat 10:26 (HST) · Source: Snapshot

The skinny

Marginal Data updated Sat 10:26 (HST)

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

Right now (forecast)

Fair · 5.0/10

Sat 12:00 (HST)

Later today

Fair · 5.0/10

Sat 13:00 (HST)

Next three days

Fair · 5.3/10

Sun 10:00 (HST)

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

Score: 5.0/10

Best time: Sat 13:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sat 13:00 (Fair). Peak afternoon wind is about 0.7 m/s.

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

Best nearby spots later today

Two Step Honaunau 5.5/10 Good · Sat 13:00

Read the Hawaii snorkeling guide for coast, access and best-month guidance.

Sunrise

06:18

Sunset

17:58

Water

28.7°C

Max air

29.0°C

Sky

Clear

15% 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

Saturday

⚠️ Fair conditions

Main blocker: Waves

Sunday

⚠️ Fair conditions

Main blocker: Waves

Monday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Sun 10:00: Fair (0.53) · still limited by waves, tide/current
  • Sun 11:00: Fair (0.52) · still limited by waves, tide/current
  • Mon 07:00: Fair (0.52) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (68 hours)
  • Tide/current (68 hours)
  • Darkness (51 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: Tue 00:00

Sun 10:00, Mon 11:00, Tue 00:00

Bookable snorkel tours near Kealakekua Bay

Prices and availability from Viator. Check conditions before you book.

We may earn a commission at no extra cost to you.

Big Island Historical Dinner Cruise to Kealakekua Bay

Big Island Historical Dinner Cruise to Kealakekua Bay

4.7/5 1376 reviews 3h
From USD 189.19 Check availability

Free cancellation available

Small-Group Snorkel at Kealakekua Bay in Captain Cook, Big Island

Small-Group Snorkel at Kealakekua Bay in Captain Cook, Big Island

4.8/5 535 reviews 3h
From USD 109.00 Check availability

Free cancellation available

Easy access into the water with our two grand staircases.

Kealakekua Bay Afternoon Snorkel: Family Fun on the Kona Coast

4.9/5 709 reviews 4h
From USD 143.93 Check availability

Free cancellation available

Kona Afternoon Snorkel to Captain Cook Monument at Kealakekua Bay

Kona Afternoon Snorkel to Captain Cook Monument at Kealakekua Bay

4.9/5 741 reviews 3h
From USD 135.64 Check availability

Free cancellation available

Dolphin, Sea Cave & Captain Cook Snorkel Combo in Kealakekua Bay

Dolphin, Sea Cave & Captain Cook Snorkel Combo in Kealakekua Bay

4.6/5 290 reviews 3h
From USD 89.00 Check availability

Free cancellation available

Captain Cook Reef Snorkeling of Kealakekua Bay

Captain Cook Reef Snorkeling of Kealakekua Bay

4.9/5 165 reviews 4h
From USD 80.00 Check availability

Free cancellation available

Nearby snorkel spot map

Compare nearby spot forecasts for later today before choosing a beach.

Two Step Honaunau Good · Sat 13:00 5.5/10 Anaehoomalu Bay Fair · Sat 13:00 5.5/10 Kahaluu Beach Park Fair · Sat 13:00 4.7/10

Forecast spot map

Use the map to see where the compared spots sit. Open a card for the hourly forecast.

Two Step Honaunau Anaehoomalu Bay Kahaluu Beach Park
  1. Two Step Honaunau
  2. Anaehoomalu Bay
  3. Kahaluu Beach Park

This is a location diagram, not a marine chart. Check the shore and local signs in person.

Nearby alternatives in USA

Two Step Honaunau

7 km away

✅ Good

Kahaluu Beach Park

12 km away

✅ Good

Big Island

29 km away

❌ Poor

Anaehoomalu Bay

49 km away

✅ Good

Advanced forecast data

Viewing historical data

Mon 12:00 – Thu 12:00 (HST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.5 around Tue 07:00; 7 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 1.14m to 1.38m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.11 to 1.95m/s).

Tides range from 0.28m to 1.09m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
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Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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
Mon 12:00 1.38 · high 0.11 · good 28.40 · good Fair
Mon 13:00 1.38 · high 0.18 · good 28.50 · good Fair
Mon 14:00 1.36 · high 0.96 · good 28.60 · good Poor
Mon 15:00 1.36 · high 1.03 · good 28.60 · good Poor
Mon 16:00 1.34 · high 0.25 · good 28.60 · good Poor
Mon 17:00 1.34 · high 1.06 · good 28.50 · good Poor
Mon 18:00 1.32 · high 0.99 · good 28.40 · good Poor
Mon 19:00 1.32 · high 1.23 · good 28.30 · good Poor
Mon 20:00 1.30 · high 1.05 · good 28.30 · good Poor
Mon 21:00 1.30 · high 0.78 · good 28.20 · good Poor
Mon 22:00 1.28 · high 0.62 · good 28.20 · good Poor
Mon 23:00 1.28 · high 0.86 · good 28.10 · good Poor
Tue 00:00 1.28 · high 0.98 · good 28.10 · good Poor
Tue 01:00 1.26 · high 1.67 · good 28.10 · good Poor
Tue 02:00 1.30 · high 1.95 · good 28.20 · good Poor
Tue 03:00 1.28 · high 1.92 · good 28.10 · good Poor
Tue 04:00 1.26 · high 0.79 · good 28.10 · good Poor
Tue 05:00 1.24 · high 0.53 · good 28.00 · good Poor
Tue 06:00 1.22 · high 0.79 · good 28.00 · good Poor
Tue 07:00 1.20 · high 0.32 · good 28.00 · good Fair
Tue 08:00 1.18 · high 0.95 · good 28.10 · good Fair
Tue 09:00 1.16 · high 0.25 · good 28.20 · good Fair
Tue 10:00 1.16 · high 0.40 · good 28.40 · good Fair
Tue 11:00 1.14 · high 0.56 · good 28.50 · good Fair
Tue 12:00 1.14 · high 0.78 · good 28.70 · good Fair
Tue 13:00 1.14 · high 0.60 · good 28.90 · good Fair
Tue 14:00 1.14 · high 0.87 · good 29.00 · good Poor
Tue 15:00 1.14 · high 0.83 · good 29.00 · good Poor
Tue 16:00 1.14 · high 0.51 · good 28.90 · good Poor
Tue 17:00 1.14 · high 0.05 · good 28.80 · good Poor
Tue 18:00 1.14 · high 0.55 · good 28.70 · good Poor
Tue 19:00 1.12 · high 0.11 · good 28.60 · good Poor
Tue 20:00 1.12 · high 0.56 · good 28.50 · good Poor
Tue 21:00 1.10 · high 0.11 · good 28.50 · good Poor
Tue 22:00 1.10 · high 0.45 · good 28.40 · good Poor
Tue 23:00 1.08 · high 0.67 · good 28.30 · good Poor
Wed 00:00 1.06 · high 1.47 · good 28.20 · good Poor
Wed 01:00 1.10 · high 1.64 · good 28.20 · good Poor
Wed 02:00 1.10 · high 1.07 · good 28.20 · good Poor
Wed 03:00 1.10 · high 0.90 · good 28.10 · good Poor
Wed 04:00 1.10 · high 0.81 · good 28.10 · good Poor
Wed 05:00 1.12 · high 0.25 · good 28.00 · good Poor
Wed 06:00 1.12 · high 0.68 · good 28.00 · good Poor
Wed 07:00 1.10 · high 0.45 · good 28.00 · good Fair
Wed 08:00 1.10 · high 0.62 · good 28.00 · good Fair
Wed 09:00 1.10 · high 0.51 · good 28.10 · good Fair
Wed 10:00 1.10 · high 0.81 · good 28.30 · good Fair
Wed 11:00 1.10 · high 1.10 · good 28.50 · good Fair
Wed 12:00 1.12 · high 1.44 · good 28.70 · good Fair
Wed 13:00 1.12 · high 1.19 · good 28.80 · good Fair
Wed 14:00 1.14 · high 0.75 · good 28.90 · good Poor
Wed 15:00 1.14 · high 0.57 · good 28.90 · good Poor
Wed 16:00 1.14 · high 0.51 · good 28.90 · good Poor
Wed 17:00 1.14 · high 0.10 · good 28.80 · good Poor
Wed 18:00 1.14 · high 0.47 · good 28.70 · good Poor
Wed 19:00 1.16 · high 1.27 · good 28.60 · good Poor
Wed 20:00 1.16 · high 1.52 · good 28.50 · good Poor
Wed 21:00 1.16 · high 1.20 · good 28.50 · good Poor
Wed 22:00 1.14 · high 1.27 · good 28.40 · good Poor
Wed 23:00 1.14 · high 1.28 · good 28.30 · good Poor
Thu 00:00 1.14 · high 0.63 · good 28.20 · good Poor
Thu 01:00 1.20 · high 0.59 · good 28.10 · good Poor
Thu 02:00 1.18 · high 0.74 · good 28.00 · good Poor
Thu 03:00 1.18 · high 0.56 · good 28.00 · good Poor
Thu 04:00 1.16 · high 0.50 · good 28.00 · good Poor
Thu 05:00 1.16 · high 0.61 · good 27.90 · good Poor
Thu 06:00 1.16 · high 0.57 · good 27.90 · good Poor
Thu 07:00 1.16 · high 0.25 · good 27.90 · good Fair
Thu 08:00 1.14 · high 0.10 · good 28.00 · good Fair
Thu 09:00 1.14 · high 0.39 · good 28.10 · good Fair
Thu 10:00 1.12 · high 0.50 · good 28.20 · good Fair
Thu 11:00 1.12 · high 0.89 · good 28.40 · good Fair