MARINE REPORT / 72 HOURS

Nosy Be Snorkel Report Today

Madagascar · Updated Sat 13:07 (EAT) · Source: Snapshot

The skinny

Marginal Data updated Sat 13:07 (EAT)

Nosy Be looks marginal today. The least-bad daylight window is around Sat 17:00, but waves is limiting the forecast.

Right now (forecast)

Fair · 5.3/10

Sat 14:00 (EAT)

Later today

Fair · 5.3/10

Sat 17:00 (EAT)

Next three days

Good · 6.9/10

Mon 08:00 (EAT)

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

Score: 5.3/10

Best time: Sat 17:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sat 17:00 (Fair). Peak afternoon wind is about 5.0 m/s.

Email me when it is good

Sunrise

05:20

Sunset

17:44

Water

28.7°C

Max air

27.7°C

Sky

Cloudy

90% cloud

Good model window in the next 72 hours

Next good model window: Sun 08:00–17:00 (39% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Saturday

⚠️ Fair conditions

Main blocker: Waves

Sunday

✅ Good conditions

Main blocker: Tide/current

Monday

✅ Good conditions

Main blocker: Tide/current

Best available hours

The next good model window starts at Sun 08:00 and lasts until 17:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (70 hours)
  • Waves (52 hours)
  • Darkness (36 hours)

Jellyfish drift risk

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

Low · 31/100

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 07:00

Sat 19:00, Sun 07:00, Sun 20:00, Mon 09:00, Tue 11:00

Nearby alternatives in Madagascar

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Thu 14:00 – Sun 14:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.68 around Fri 11:00; 12 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.

21/24 sampled hours stay at or below 0.36m (range 0.26m to 0.4m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.72 to 5.25m/s).

Tides range from -0.92m to 2.17m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Good 🌟 Good
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
Thu 14:00 0.32 · good 4.74 · good 28.40 · good Good
Thu 15:00 0.32 · good 5.25 · good 28.50 · good Good
Thu 16:00 0.34 · good 5.13 · good 28.50 · good Fair
Thu 17:00 0.34 · good 4.41 · good 28.50 · good Good
Thu 18:00 0.40 · high 3.98 · good 28.40 · good Poor
Thu 19:00 0.38 · high 3.06 · good 28.40 · good Poor
Thu 20:00 0.38 · high 2.58 · good 28.30 · good Poor
Thu 21:00 0.36 · good 1.83 · good 28.30 · good Poor
Thu 22:00 0.34 · good 1.39 · good 28.20 · good Poor
Thu 23:00 0.34 · good 0.87 · good 28.20 · good Poor
Fri 00:00 0.32 · good 0.75 · good 28.20 · good Poor
Fri 01:00 0.32 · good 0.72 · good 28.10 · good Poor
Fri 02:00 0.30 · good 0.97 · good 28.10 · good Poor
Fri 03:00 0.30 · good 0.92 · good 28.10 · good Poor
Fri 04:00 0.28 · good 1.07 · good 28.10 · good Poor
Fri 05:00 0.28 · good 1.04 · good 28.00 · good Poor
Fri 06:00 0.26 · good 0.85 · good 28.00 · good Good
Fri 07:00 0.26 · good 1.42 · good 28.00 · good Good
Fri 08:00 0.26 · good 0.78 · good 28.00 · good Good
Fri 09:00 0.26 · good 2.05 · good 28.00 · good Good
Fri 10:00 0.26 · good 1.82 · good 28.10 · good Good
Fri 11:00 0.26 · good 1.88 · good 28.10 · good Good
Fri 12:00 0.26 · good 3.00 · good 28.20 · good Good
Fri 13:00 0.28 · good 4.05 · good 28.30 · good Good
Fri 14:00 0.28 · good 4.55 · good 28.30 · good Good
Fri 15:00 0.30 · good 4.51 · good 28.40 · good Good
Fri 16:00 0.30 · good 4.32 · good 28.40 · good Good
Fri 17:00 0.32 · good 4.15 · good 28.40 · good Good
Fri 18:00 0.32 · good 2.77 · good 28.30 · good Poor
Fri 19:00 0.26 · good 2.50 · good 28.30 · good Poor
Fri 20:00 0.26 · good 2.19 · good 28.30 · good Poor
Fri 21:00 0.26 · good 1.93 · good 28.20 · good Poor
Fri 22:00 0.26 · good 1.66 · good 28.20 · good Poor
Fri 23:00 0.24 · good 1.40 · good 28.20 · good Poor
Sat 00:00 0.24 · good 1.35 · good 28.10 · good Poor
Sat 01:00 0.24 · good 1.27 · good 28.10 · good Poor
Sat 02:00 0.24 · good 0.65 · good 28.10 · good Poor
Sat 03:00 0.24 · good 1.28 · good 28.10 · good Poor
Sat 04:00 0.24 · good 0.52 · good 28.10 · good Poor
Sat 05:00 0.24 · good 1.57 · good 28.10 · good Poor
Sat 06:00 0.24 · good 2.97 · good 28.00 · good Fair
Sat 07:00 0.24 · good 3.02 · good 28.00 · good Good
Sat 08:00 0.26 · good 2.50 · good 28.10 · good Good
Sat 09:00 0.26 · good 0.32 · good 28.10 · good Good
Sat 10:00 0.26 · good 1.30 · good 28.10 · good Good
Sat 11:00 0.26 · good 2.73 · good 28.20 · good Fair
Sat 12:00 0.26 · good 3.16 · good 28.30 · good Fair
Sat 13:00 0.28 · good 3.72 · good 28.30 · good Good
Sat 14:00 0.32 · good 4.68 · good 28.40 · good Good
Sat 15:00 0.34 · good 4.87 · good 28.40 · good Good
Sat 16:00 0.34 · good 4.15 · good 28.40 · good Good
Sat 17:00 0.34 · good 3.47 · good 28.40 · good Good
Sat 18:00 0.34 · good 2.75 · good 28.40 · good Poor
Sat 19:00 0.36 · good 2.15 · good 28.30 · good Poor
Sat 20:00 0.36 · good 1.43 · good 28.30 · good Poor
Sat 21:00 0.34 · good 1.35 · good 28.30 · good Poor
Sat 22:00 0.34 · good 1.84 · good 28.30 · good Poor
Sat 23:00 0.36 · good 2.48 · good 28.20 · good Poor
Sun 00:00 0.36 · good 1.48 · good 28.20 · good Poor
Sun 01:00 0.38 · high 1.32 · good 28.20 · good Poor
Sun 02:00 0.38 · high 1.07 · good 28.20 · good Poor
Sun 03:00 0.40 · high 1.10 · good 28.20 · good Poor
Sun 04:00 0.40 · high 1.40 · good 28.20 · good Poor
Sun 05:00 0.42 · high 1.92 · good 28.20 · good Poor
Sun 06:00 0.42 · high 2.55 · good 28.10 · good Good
Sun 07:00 0.42 · high 2.84 · good 28.10 · good Good
Sun 08:00 0.42 · high 2.24 · good 28.10 · good Good
Sun 09:00 0.42 · high 0.14 · good 28.20 · good Good
Sun 10:00 0.42 · high 1.03 · good 28.20 · good Good
Sun 11:00 0.42 · high 2.38 · good 28.30 · good Fair
Sun 12:00 0.42 · high 3.40 · good 28.40 · good Fair
Sun 13:00 0.42 · high 3.92 · good 28.50 · good Good