MARINE REPORT / 72 HOURS

Kealakekua Bay Snorkel Report Today

USA · Updated Sat 00:08 (HST) · Source: Snapshot

The skinny

Marginal Data updated Sat 00:08 (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)

Poor · 0.0/10

Sat 00:00 (HST)

Later today

Fair · 5.0/10

Sat 13:00 (HST)

Next three days

Fair · 5.1/10

Mon 07:00 (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

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

Best afternoon signal: Sat 13:00 (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 later today

Anaehoomalu Bay 6.0/10 Good · Sat 08:00 Two Step Honaunau 5.9/10 Good · Sat 09:00

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

Sunrise

06:18

Sunset

17:58

Water

28.2°C

Max air

28.9°C

Sky

Cloudy

100% 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

  • Mon 07:00: Fair (0.51) · still limited by waves, tide/current
  • Sat 13:00: Fair (0.50) · still limited by waves, tide/current
  • Sat 09:00: Fair (0.50) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (71 hours)
  • Tide/current (71 hours)
  • Darkness (50 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: Sat 08:00

Sat 08:00, Sun 10:00, Mon 11:00

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

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Easy access into the water with our two grand staircases.

Kealakekua Bay Afternoon Snorkel: Family Fun on the Kona Coast

4.9/5 708 reviews 4h
From USD 143.93 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

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.

Anaehoomalu Bay Good · Sat 08:00 6.0/10 Two Step Honaunau Good · Sat 09:00 5.9/10 Kahaluu Beach Park Fair · Sat 09:00 4.8/10

Forecast spot map

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

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

❌ Poor

Big Island

29 km away

❌ Poor

Anaehoomalu Bay

49 km away

✅ Good

Advanced forecast data

Viewing historical data

Wed 00:00 – Sat 00:00 (HST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.59 around Wed 08:00; 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 1.04m to 1.2m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.1 to 1.43m/s).

Tides range from 0.35m to 0.99m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
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Good 🌟 Good
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Fair ⚠️ Fair
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Poor ❌ Limited
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Fair ⚠️ Fair
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Fair ⚠️ Fair
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Poor ❌ Limited
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Good 🌟 Good
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Fair ⚠️ Fair
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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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Wed 00:00 1.04 · high 0.39 · good 27.90 · good Poor
Wed 01:00 1.06 · high 0.50 · good 27.80 · good Poor
Wed 02:00 1.06 · high 0.52 · good 27.80 · good Poor
Wed 03:00 1.06 · high 0.55 · good 27.80 · good Poor
Wed 04:00 1.06 · high 0.56 · good 27.80 · good Poor
Wed 05:00 1.06 · high 0.11 · good 27.80 · good Poor
Wed 06:00 1.12 · high 0.10 · good 27.70 · good Poor
Wed 07:00 1.14 · high 0.16 · good 27.70 · good Good
Wed 08:00 1.14 · high 0.63 · good 27.80 · good Good
Wed 09:00 1.14 · high 0.87 · good 27.80 · good Good
Wed 10:00 1.16 · high 1.14 · good 28.00 · good Fair
Wed 11:00 1.16 · high 1.22 · good 28.10 · good Fair
Wed 12:00 1.16 · high 1.43 · good 28.20 · good Fair
Wed 13:00 1.16 · high 1.10 · good 28.30 · good Fair
Wed 14:00 1.16 · high 1.28 · good 28.40 · good Poor
Wed 15:00 1.18 · high 1.07 · good 28.40 · good Poor
Wed 16:00 1.18 · high 0.55 · good 28.40 · good Poor
Wed 17:00 1.20 · high 0.25 · good 28.30 · good Poor
Wed 18:00 1.20 · high 0.25 · good 28.20 · good Poor
Wed 19:00 1.20 · high 0.55 · good 28.20 · good Poor
Wed 20:00 1.20 · high 0.96 · good 28.10 · good Poor
Wed 21:00 1.20 · high 0.73 · good 28.10 · good Poor
Wed 22:00 1.20 · high 0.51 · good 28.10 · good Poor
Wed 23:00 1.20 · high 0.60 · good 28.00 · good Poor
Thu 00:00 1.20 · high 0.50 · good 28.00 · good Poor
Thu 01:00 1.20 · high 0.75 · good 27.90 · good Poor
Thu 02:00 1.20 · high 0.27 · good 27.90 · good Poor
Thu 03:00 1.20 · high 1.28 · good 27.80 · good Poor
Thu 04:00 1.20 · high 1.27 · good 27.80 · good Poor
Thu 05:00 1.30 · high 1.62 · good 27.80 · good Poor
Thu 06:00 1.30 · high 1.46 · good 27.80 · good Poor
Thu 07:00 1.30 · high 1.47 · good 27.80 · good Fair
Thu 08:00 1.30 · high 1.29 · good 27.80 · good Good
Thu 09:00 1.32 · high 0.74 · good 27.90 · good Good
Thu 10:00 1.32 · high 0.82 · good 28.10 · good Good
Thu 11:00 1.34 · high 1.48 · good 28.20 · good Fair
Thu 12:00 1.36 · high 1.75 · good 28.40 · good Fair
Thu 13:00 1.38 · high 1.52 · good 28.50 · good Fair
Thu 14:00 1.40 · high 1.20 · good 28.60 · good Poor
Thu 15:00 1.40 · high 0.96 · good 28.60 · good Poor
Thu 16:00 1.38 · high 0.15 · good 28.50 · good Poor
Thu 17:00 1.38 · high 1.17 · good 28.50 · good Poor
Thu 18:00 1.36 · high 1.82 · good 28.40 · good Poor
Thu 19:00 1.36 · high 1.33 · good 28.30 · good Poor
Thu 20:00 1.34 · high 0.65 · good 28.20 · good Poor
Thu 21:00 1.32 · high 0.69 · good 28.20 · good Poor
Thu 22:00 1.30 · high 1.11 · good 28.10 · good Poor
Thu 23:00 1.28 · high 0.97 · good 28.10 · good Poor
Fri 00:00 1.26 · high 1.79 · good 28.00 · good Poor
Fri 01:00 1.36 · high 1.96 · good 27.80 · good Poor
Fri 02:00 1.34 · high 1.86 · good 27.80 · good Poor
Fri 03:00 1.32 · high 1.12 · good 27.80 · good Poor
Fri 04:00 1.32 · high 0.67 · good 27.80 · good Poor
Fri 05:00 1.30 · high 0.67 · good 27.70 · good Poor
Fri 06:00 1.28 · high 0.47 · good 27.70 · good Poor
Fri 07:00 1.32 · high 0.27 · good 27.70 · good Good
Fri 08:00 1.30 · high 0.53 · good 27.80 · good Good
Fri 09:00 1.28 · high 0.83 · good 27.90 · good Fair
Fri 10:00 1.28 · high 1.08 · good 28.10 · good Good
Fri 11:00 1.26 · high 1.39 · good 28.20 · good Fair
Fri 12:00 1.26 · high 1.26 · good 28.40 · good Fair
Fri 13:00 1.26 · high 1.23 · good 28.60 · good Fair
Fri 14:00 1.26 · high 1.14 · good 28.70 · good Poor
Fri 15:00 1.26 · high 0.45 · good 28.70 · good Poor
Fri 16:00 1.26 · high 0.85 · good 28.60 · good Poor
Fri 17:00 1.26 · high 0.57 · good 28.60 · good Poor
Fri 18:00 1.26 · high 0.98 · good 28.50 · good Poor
Fri 19:00 1.24 · high 1.03 · good 28.40 · good Poor
Fri 20:00 1.24 · high 0.92 · good 28.30 · good Poor
Fri 21:00 1.24 · high 1.20 · good 28.20 · good Poor
Fri 22:00 1.24 · high 1.28 · good 28.10 · good Poor
Fri 23:00 1.24 · high 0.78 · good 28.10 · good Poor