SnorkelForecast.com

Big Island Snorkel Report Today

USA · Updated Thu 00:27 (HST) · Source: Snapshot

The skinny

Marginal Report Wed 14:58

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

Score: 0.0/10

Best time: Sat 13:00

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

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

Best nearby spots

Kealakekua Bay 5.3/10 Fair · Fri 20:00 Two Step Honaunau 5.3/10 Fair · Fri 20:00 Anaehoomalu Bay 5.2/10 Fair · Thu 19:00

Local beach intelligence

AreaHawaii Island

DifficultyVaries by beach

Best timeMorning

ExposureKona coast is often calmer; east side is windier

ShoreIsland hub

Sunrise

06:02

Sunset

18:52

Water

-

Max air

15.2°C

Sky

Cloudy

95% 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

Wednesday

❌ Poor conditions

Main blocker: Waves

Thursday

❌ Poor conditions

Main blocker: Waves

Friday

❌ Poor conditions

Main blocker: Waves

Best available hours

  • Sat 23:00: Poor (0.00) · still limited by waves, wind
  • Sat 22:00: Poor (0.00) · still limited by waves, wind
  • Sat 21:00: Poor (0.00) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (71 hours)
  • Sea temperature (71 hours)
  • Darkness (50 hours)

Jellyfish drift risk

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

Low · 6/100

Low drift risk now.

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.

Bookable snorkel tours near Big Island

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

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

Manta Ray Night Snorkel at Kona, Big Island

Manta Ray Night Snorkel at Kona, Big Island

4.7/5 2007 reviews 1h 30m
From USD 30.00 Check availability

Free cancellation available

Big Island Manta Ray Night Snorkel

Big Island Manta Ray Night Snorkel

4.8/5 6224 reviews 2h 30m
From USD 94.00 Check availability

Free cancellation available

Another fun day at captain cook reef

Big Island: Captain Cook Snorkel On A Power Catamaran With Lunch

4.9/5 2473 reviews 4h
From USD 85.00 Check availability

Free cancellation available

Big Island: Manta Ray Night Snorkeling Adventure in Kailua-Kona

Big Island: Manta Ray Night Snorkeling Adventure in Kailua-Kona

4.9/5 806 reviews 2h 30m
From USD 75.00 Check availability

Free cancellation available

Big Island Manta Ray Night Snorkel Adventure

Big Island Manta Ray Night Snorkel Adventure

4.8/5 470 reviews 1h 25m
From USD 99.00 Check availability

Free cancellation available

Manta Ray Night Snorkel Tour in Kailua-Kona, Big Island

Manta Ray Night Snorkel Tour in Kailua-Kona, Big Island

4.8/5 466 reviews 2h
From USD 125.00 Check availability

Free cancellation available

Nearby snorkel spot map

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

Kealakekua Bay Fair · Fri 20:00 5.3/10 Two Step Honaunau Fair · Fri 20:00 5.3/10 Anaehoomalu Bay Fair · Thu 19:00 5.2/10 Kahaluu Beach Park Fair · Thu 18:00 5.1/10

Forecast spot map

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

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

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

Nearby alternatives in USA

Kealakekua Bay

29 km away

❌ Poor

Two Step Honaunau

29 km away

❌ Poor

Kahaluu Beach Park

32 km away

❌ Poor

Anaehoomalu Bay

47 km away

❌ Poor

Advanced forecast data

Viewing historical data

Sat 00:00 – Tue 00:00 (HST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.0 around Fri 14:00; 0 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.

No wave-height trend data is available for the next 24 hours yet.

Wind is at or below 5.4m/s in 19/24 sampled hours (range 0.38 to 6.15m/s).

No tide trend data is available for the next 24 hours yet.

72-hour historical overview
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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
Sat 00:00 · high 5.95 · high · out of range Poor
Sat 01:00 · high 5.92 · high · out of range Poor
Sat 02:00 · high 5.64 · high · out of range Poor
Sat 03:00 · high 5.40 · good · out of range Poor
Sat 04:00 · high 4.74 · good · out of range Poor
Sat 05:00 · high 2.75 · good · out of range Poor
Sat 06:00 · high 2.11 · good · out of range Poor
Sat 07:00 · high 1.75 · good · out of range Poor
Sat 08:00 · high 2.27 · good · out of range Poor
Sat 09:00 · high 1.84 · good · out of range Poor
Sat 10:00 · high 1.61 · good · out of range Poor
Sat 11:00 · high 1.28 · good · out of range Poor
Sat 12:00 · high 0.89 · good · out of range Poor
Sat 13:00 · high 0.82 · good · out of range Poor
Sat 14:00 · high 1.17 · good · out of range Poor
Sat 15:00 · high 1.70 · good · out of range Poor
Sat 16:00 · high 1.96 · good · out of range Poor
Sat 17:00 · high 1.41 · good · out of range Poor
Sat 18:00 · high 0.38 · good · out of range Poor
Sat 19:00 · high 2.37 · good · out of range Poor
Sat 20:00 · high 3.89 · good · out of range Poor
Sat 21:00 · high 4.80 · good · out of range Poor
Sat 22:00 · high 5.64 · high · out of range Poor
Sat 23:00 · high 6.15 · high · out of range Poor
Sun 00:00 · high 5.93 · high · out of range Poor
Sun 01:00 · high 5.91 · high · out of range Poor
Sun 02:00 · high 5.31 · good · out of range Poor
Sun 03:00 · high 4.79 · good · out of range Poor
Sun 04:00 · high 4.22 · good · out of range Poor
Sun 05:00 · high 2.80 · good · out of range Poor
Sun 06:00 · high 2.30 · good · out of range Poor
Sun 07:00 · high 1.70 · good · out of range Poor
Sun 08:00 · high 1.67 · good · out of range Poor
Sun 09:00 · high 1.84 · good · out of range Poor
Sun 10:00 · high 1.13 · good · out of range Poor
Sun 11:00 · high 0.76 · good · out of range Poor
Sun 12:00 · high 1.74 · good · out of range Poor
Sun 13:00 · high 1.20 · good · out of range Poor
Sun 14:00 · high 1.44 · good · out of range Poor
Sun 15:00 · high 1.57 · good · out of range Poor
Sun 16:00 · high 1.42 · good · out of range Poor
Sun 17:00 · high 1.12 · good · out of range Poor
Sun 18:00 · high 0.60 · good · out of range Poor
Sun 19:00 · high 2.40 · good · out of range Poor
Sun 20:00 · high 4.32 · good · out of range Poor
Sun 21:00 · high 4.05 · good · out of range Poor
Sun 22:00 · high 4.25 · good · out of range Poor
Sun 23:00 · high 4.52 · good · out of range Poor
Mon 00:00 · high 6.02 · high · out of range Poor
Mon 01:00 · high 5.75 · high · out of range Poor
Mon 02:00 · high 4.84 · good · out of range Poor
Mon 03:00 · high 4.26 · good · out of range Poor
Mon 04:00 · high 3.79 · good · out of range Poor
Mon 05:00 · high 2.44 · good · out of range Poor
Mon 06:00 · high 1.79 · good · out of range Poor
Mon 07:00 · high 1.27 · good · out of range Poor
Mon 08:00 · high 0.86 · good · out of range Poor
Mon 09:00 · high 0.65 · good · out of range Poor
Mon 10:00 · high 1.01 · good · out of range Poor
Mon 11:00 · high 0.98 · good · out of range Poor
Mon 12:00 · high 0.95 · good · out of range Poor
Mon 13:00 · high 1.33 · good · out of range Poor
Mon 14:00 · high 1.74 · good · out of range Poor
Mon 15:00 · high 1.81 · good · out of range Poor
Mon 16:00 · high 1.97 · good · out of range Poor
Mon 17:00 · high 1.28 · good · out of range Poor
Mon 18:00 · high 0.57 · good · out of range Poor
Mon 19:00 · high 1.77 · good · out of range Poor
Mon 20:00 · high 3.81 · good · out of range Poor
Mon 21:00 · high 4.40 · good · out of range Poor
Mon 22:00 · high 5.24 · good · out of range Poor
Mon 23:00 · high 4.75 · good · out of range Poor