SnorkelForecast.com

Nosy Be Snorkel Report Today

Madagascar · Updated Tue 04:16 (EAT) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Thu 00:57

Nosy Be has a usable snorkeling window around Thu 07:00. The main thing to watch is darkness.

Score: 8.5/10

Best time: Thu 07:00

Main risk: Darkness

Best morning signal: Thu 09:00 (Excellent).

Best afternoon signal: Thu 12:00 (Excellent). Peak afternoon wind is about 4.7 m/s.

Email me when it is good

Sunrise

06:09

Sunset

17:37

Water

27.5°C

Max air

27.9°C

Sky

Clear

15% cloud

Good window is available today

Next safe window: Thu 04:00–14:00 (37% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Thursday

✅ excellent conditions

Main blocker: Darkness

Friday

❌ poor conditions

Main blocker: Darkness

Best available hours

Next safe window starts at Thu 04:00 until 14:00.

Why this verdict

Main blockers across the next 72 hours:

  • Darkness (19 hours)
  • Waves (9 hours)

Jellyfish drift risk

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

Low · 27/100

Low peak drift risk around Thu 03:00.

warm water supports seasonal jellyfish activity; 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

Thu 07:00, Thu 20:00

Nearby alternatives in Madagascar

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Fri 21:00 – Mon 21:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.44 around Sat 16:00; 2 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.

1/24 sampled hours stay at or below 0.36m (range 0.36m to 0.46m).

Wind is at or below 5.4m/s in 11/24 sampled hours (range 0.3 to 18.5m/s).

Tides range from -0.44m to 1.71m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
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poor ❌ Limited
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poor ❌ Limited
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fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
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
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
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
fair ⚠️ Fair
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
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
Fri 21:00 0.46 · high 5.80 · high 28.10 · good poor
Fri 22:00 0.46 · high 5.60 · high 28.10 · good poor
Fri 23:00 0.44 · high 6.00 · high 28.00 · good poor
Sat 00:00 0.44 · high 0.70 · good 28.00 · good poor
Sat 01:00 0.44 · high 0.30 · good 28.00 · good poor
Sat 02:00 0.44 · high 0.30 · good 28.00 · good poor
Sat 03:00 0.44 · high 0.80 · good 28.00 · good poor
Sat 04:00 0.44 · high 2.20 · good 28.00 · good poor
Sat 05:00 0.42 · high 1.30 · good 28.00 · good poor
Sat 06:00 0.42 · high 2.20 · good 28.00 · good poor
Sat 07:00 0.42 · high 5.00 · good 28.00 · good poor
Sat 08:00 0.42 · high 8.90 · high 28.10 · good poor
Sat 09:00 0.42 · high 12.40 · high 28.20 · good poor
Sat 10:00 0.42 · high 11.40 · high 28.20 · good poor
Sat 11:00 0.40 · high 14.20 · high 28.30 · good poor
Sat 12:00 0.40 · high 15.90 · high 28.30 · good poor
Sat 13:00 0.38 · high 18.50 · high 28.20 · good fair
Sat 14:00 0.40 · high 15.90 · high 28.20 · good fair
Sat 15:00 0.42 · high 12.40 · high 28.20 · good poor
Sat 16:00 0.42 · high 9.20 · high 28.20 · good poor
Sat 17:00 0.40 · high 4.80 · good 28.10 · good poor
Sat 18:00 0.40 · high 2.20 · good 28.10 · good poor
Sat 19:00 0.38 · high 13.20 · high 28.10 · good poor
Sat 20:00 0.36 · good 5.40 · good 28.10 · good poor
Sat 21:00 0.34 · good 3.00 · good 28.00 · good poor
Sat 22:00 0.34 · good 4.00 · good 28.00 · good poor
Sat 23:00 0.32 · good 6.40 · high 28.00 · good poor
Sun 00:00 0.32 · good 4.80 · good 28.00 · good poor
Sun 01:00 0.32 · good 3.80 · good 28.00 · good poor
Sun 02:00 0.32 · good 1.60 · good 27.90 · good poor
Sun 03:00 0.32 · good 0.90 · good 27.90 · good poor
Sun 04:00 0.32 · good 5.90 · high 27.90 · good fair
Sun 05:00 0.34 · good 5.80 · high 27.90 · good fair
Sun 06:00 0.34 · good 6.00 · high 27.90 · good fair
Sun 07:00 0.34 · good 6.60 · high 28.00 · good fair
Sun 08:00 0.32 · good 8.80 · high 28.00 · good fair
Sun 09:00 0.32 · good 11.70 · high 28.10 · good fair
Sun 10:00 0.32 · good 13.90 · high 28.10 · good fair
Sun 11:00 0.32 · good 13.90 · high 28.20 · good fair
Sun 12:00 0.32 · good 14.40 · high 28.20 · good fair
Sun 13:00 0.34 · good 16.60 · high 28.20 · good fair
Sun 14:00 0.36 · good 15.50 · high 28.20 · good fair
Sun 15:00 0.38 · high 13.00 · high 28.20 · good poor
Sun 16:00 0.36 · good 7.00 · high 28.10 · good poor
Sun 17:00 0.36 · good 6.60 · high 28.10 · good poor
Sun 18:00 0.34 · good 11.20 · high 28.10 · good poor
Sun 19:00 0.32 · good 0.90 · good 28.10 · good poor
Sun 20:00 0.32 · good 1.60 · good 28.00 · good poor
Sun 21:00 0.30 · good 1.80 · good 28.00 · good poor
Sun 22:00 0.30 · good 2.90 · good 28.00 · good poor
Sun 23:00 0.28 · good 2.70 · good 28.00 · good poor
Mon 00:00 0.28 · good 2.00 · good 28.00 · good poor
Mon 01:00 0.28 · good 2.40 · good 28.00 · good poor
Mon 02:00 0.28 · good 1.80 · good 27.90 · good poor
Mon 03:00 0.28 · good 2.10 · good 27.90 · good poor
Mon 04:00 0.28 · good 3.10 · good 27.90 · good good
Mon 05:00 0.28 · good 0.60 · good 27.90 · good good
Mon 06:00 0.28 · good 3.40 · good 27.90 · good fair
Mon 07:00 0.28 · good 3.90 · good 27.90 · good good
Mon 08:00 0.26 · good 4.80 · good 28.00 · good fair
Mon 09:00 0.26 · good 8.60 · high 28.00 · good fair
Mon 10:00 0.26 · good 10.80 · high 28.10 · good fair
Mon 11:00 0.26 · good 10.90 · high 28.10 · good fair
Mon 12:00 0.26 · good 12.50 · high 28.20 · good fair
Mon 13:00 0.26 · good 11.60 · high 28.20 · good fair
Mon 14:00 0.26 · good 9.50 · high 28.20 · good fair
Mon 15:00 0.26 · good 8.70 · high 28.20 · good poor
Mon 16:00 0.26 · good 8.70 · high 28.10 · good poor
Mon 17:00 0.26 · good 4.20 · good 28.10 · good poor
Mon 18:00 0.26 · good 0.20 · good 28.10 · good poor
Mon 19:00 0.26 · good 2.30 · good 28.10 · good poor
Mon 20:00 0.26 · good 4.20 · good 28.00 · good poor