SnorkelForecast.com

Big Island Snorkel Report Today

USA · Updated Thu 05:05 (HST) · Source: Snapshot

The skinny

Marginal Report Thu 07:27

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

Best morning signal: Thu 08:00 (Poor).

Best afternoon signal: Thu 12:00 (Poor). Peak afternoon wind is about 6.0 m/s.

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

Best nearby spots

Two Step Honaunau 6.2/10 Good · Fri 17:00

Local beach intelligence

AreaHawaii Island

DifficultyVaries by beach

Best timeMorning

ExposureKona coast is often calmer; east side is windier

ShoreIsland hub

Sunrise

05:53

Sunset

19:04

Water

-

Max air

15.2°C

Sky

Partly cloudy

31% 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

Thursday

❌ poor conditions

Main blocker: Waves

Friday

❌ poor conditions

Main blocker: Waves

Saturday

❌ poor conditions

Main blocker: Waves

Best available hours

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

Why this verdict

Main blockers across the next 72 hours:

  • Waves (59 hours)
  • Sea temperature (59 hours)
  • Darkness (37 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.

Tours and water activities near Big Island

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

Sponsored external links

Dolphins off Lilikoi

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Manta Ray Dives of Hawaii

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Kona manta ray snorkel and dive operator.

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Dolphins

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Kona snorkel tours for Big Island reef and coast trips.

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Nearby snorkel spot map

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

Two Step Honaunau Good · Fri 17:00 6.2/10 Anaehoomalu Bay Fair · Fri 20:00 5.5/10 Kahaluu Beach Park Fair · Fri 23:00 5.2/10 Kealakekua Bay Fair · Fri 19:00 5.2/10

Nearby alternatives in USA

Kealakekua Bay

29 km away

⚠️ Fair

Two Step Honaunau

29 km away

✅ Good

Kahaluu Beach Park

32 km away

⚠️ Fair

Anaehoomalu Bay

47 km away

⚠️ Fair

Advanced forecast data

Viewing live forecast

Thu 17:00 – Sun 17:00 (HST)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.0 around Thu 08:00; 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 20/24 sampled hours (range 0.67 to 6.04m/s).

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

72-hour forecast 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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Thu 18:00 · high 0.82 · good · out of range poor
Thu 19:00 · high 2.29 · good · out of range poor
Thu 20:00 · high 3.84 · good · out of range poor
Thu 21:00 · high 4.87 · good · out of range poor
Thu 22:00 · high 6.04 · high · out of range poor
Thu 23:00 · high 5.85 · high · out of range poor
Fri 00:00 · high 5.91 · high · out of range poor
Fri 01:00 · high 5.45 · high · out of range poor
Fri 02:00 · high 4.95 · good · out of range poor
Fri 03:00 · high 4.61 · good · out of range poor
Fri 04:00 · high 3.97 · good · out of range poor
Fri 05:00 · high 2.40 · good · out of range poor
Fri 06:00 · high 1.39 · good · out of range poor
Fri 07:00 · high 0.99 · good · out of range poor
Fri 08:00 · high 1.12 · good · out of range poor
Fri 09:00 · high 1.02 · good · out of range poor
Fri 10:00 · high 0.67 · good · out of range poor
Fri 11:00 · high 0.93 · good · out of range poor
Fri 12:00 · high 1.02 · good · out of range poor
Fri 13:00 · high 0.92 · good · out of range poor
Fri 14:00 · high 1.46 · good · out of range poor
Fri 15:00 · high 1.61 · good · out of range poor
Fri 16:00 · high 1.85 · good · out of range poor
Fri 17:00 · high 1.12 · good · out of range poor
Fri 18:00 · high 1.11 · good · out of range poor
Fri 19:00 · high 2.19 · good · out of range poor
Fri 20:00 · high 3.32 · good · out of range poor
Fri 21:00 · high 4.56 · good · out of range poor
Fri 22:00 · high 4.89 · good · out of range poor
Fri 23:00 · high 4.38 · good · out of range poor
Sat 00:00 · high 3.66 · good · out of range poor
Sat 01:00 · high 3.05 · good · out of range poor
Sat 02:00 · high 2.64 · good · out of range poor
Sat 03:00 · high 2.45 · good · out of range poor
Sat 04:00 · high 2.00 · good · out of range poor
Sat 05:00 · high 1.82 · good · out of range poor
Sat 06:00 · high 2.19 · good · out of range poor
Sat 07:00 · high 2.05 · good · out of range poor
Sat 08:00 · high 1.36 · good · out of range poor
Sat 09:00 · high 1.31 · good · out of range poor
Sat 10:00 · high 1.39 · good · out of range poor
Sat 11:00 · high 1.27 · good · out of range poor
Sat 12:00 · high 1.40 · good · out of range poor
Sat 13:00 · high 1.71 · good · out of range poor
Sat 14:00 · high 1.56 · good · out of range poor
Sat 15:00 · high 1.88 · good · out of range poor
Sat 16:00 · high 2.06 · good · out of range poor
Sat 17:00 · high 1.43 · good · out of range poor
Sat 18:00 · high 1.75 · good · out of range poor
Sat 19:00 · high 2.83 · good · out of range poor
Sat 20:00 · high 4.19 · good · out of range poor
Sat 21:00 · high 4.94 · good · out of range poor
Sat 22:00 · high 5.01 · good · out of range poor
Sat 23:00 · high 4.54 · good · out of range poor
Sun 00:00 · high 3.58 · good · out of range poor
Sun 01:00 · high 3.60 · good · out of range poor
Sun 02:00 · high 2.98 · good · out of range poor
Sun 03:00 · high 2.91 · good · out of range poor
Sun 04:00 · high 3.04 · good · out of range poor