SnorkelForecast.com

Nosy Be Snorkel Report Today

Madagascar · Updated Fri 03:26 (EAT) · Source: Snapshot

The skinny

Go in the best window Report Fri 08:03

Nosy Be has a usable snorkeling window around Fri 09:00. The main thing to watch is waves.

Score: 7.8/10

Best time: Fri 09:00

Main risk: Waves

Best morning signal: Fri 11:00 (Excellent).

Best afternoon signal: Fri 13:00 (Excellent). Peak afternoon wind is about 3.8 m/s.

Email me when it is good

Sunrise

06:09

Sunset

17:37

Water

27.4°C

Max air

27.0°C

Sky

Partly cloudy

35% cloud

Good window is available today

Next safe window: Fri 06:00–14:00 (30% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Friday

✅ excellent conditions

Main blocker: Darkness

Saturday

✅ excellent conditions

Main blocker: Darkness

Sunday

✅ good conditions

Main blocker: Waves

Best available hours

Next safe window starts at Fri 06:00 until 14:00.

Why this verdict

Main blockers across the next 72 hours:

  • Waves (41 hours)
  • Darkness (38 hours)

Jellyfish drift risk

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

Low · 27/100

Low drift risk now.

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

Next early morning high tide: Fri 22:00

Fri 09:00, Fri 22:00, Sat 10:00, Sat 23:00, Sun 11:00, Mon 00:00

Nearby alternatives in Madagascar

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Wed 05:00 – Sat 05:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.42 around Wed 10:00; 1 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.

24/24 sampled hours stay at or below 0.36m (range 0.3m to 0.34m).

Wind is at or below 5.4m/s in 10/24 sampled hours (range 2.3 to 14.2m/s).

Tides range from -0.16m to 1.43m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
poor ❌ Limited
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
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
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
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
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
poor ❌ Limited
poor ❌ Limited
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
Wed 05:00 0.34 · good 3.80 · good 27.90 · good poor
Wed 06:00 0.34 · good 4.30 · good 27.90 · good poor
Wed 07:00 0.34 · good 2.30 · good 28.00 · good fair
Wed 08:00 0.32 · good 3.80 · good 28.00 · good poor
Wed 09:00 0.32 · good 8.50 · high 28.10 · good poor
Wed 10:00 0.32 · good 12.20 · high 28.10 · good poor
Wed 11:00 0.32 · good 13.50 · high 28.20 · good poor
Wed 12:00 0.32 · good 13.70 · high 28.20 · good poor
Wed 13:00 0.34 · good 14.20 · high 28.20 · good poor
Wed 14:00 0.34 · good 12.30 · high 28.20 · good poor
Wed 15:00 0.34 · good 10.60 · high 28.20 · good poor
Wed 16:00 0.34 · good 10.30 · high 28.10 · good poor
Wed 17:00 0.32 · good 4.40 · good 28.10 · good poor
Wed 18:00 0.32 · good 2.90 · good 28.10 · good poor
Wed 19:00 0.32 · good 4.30 · good 28.10 · good poor
Wed 20:00 0.30 · good 12.50 · high 28.00 · good poor
Wed 21:00 0.30 · good 5.90 · high 28.00 · good poor
Wed 22:00 0.30 · good 8.70 · high 28.00 · good poor
Wed 23:00 0.30 · good 9.20 · high 28.00 · good poor
Thu 00:00 0.30 · good 5.20 · good 28.00 · good poor
Thu 01:00 0.30 · good 6.80 · high 28.00 · good poor
Thu 02:00 0.32 · good 5.20 · good 27.90 · good poor
Thu 03:00 0.32 · good 4.00 · good 27.90 · good poor
Thu 04:00 0.32 · good 5.50 · high 27.90 · good poor
Thu 05:00 0.32 · good 2.80 · good 27.90 · good fair
Thu 06:00 0.32 · good 3.80 · good 27.90 · good poor
Thu 07:00 0.32 · good 3.20 · good 28.00 · good poor
Thu 08:00 0.32 · good 5.10 · good 28.00 · good poor
Thu 09:00 0.32 · good 11.20 · high 28.10 · good poor
Thu 10:00 0.32 · good 14.40 · high 28.10 · good poor
Thu 11:00 0.34 · good 13.40 · high 28.20 · good poor
Thu 12:00 0.34 · good 15.70 · high 28.20 · good poor
Thu 13:00 0.36 · good 18.60 · high 28.20 · good poor
Thu 14:00 0.40 · high 18.50 · high 28.20 · good poor
Thu 15:00 0.42 · high 14.30 · high 28.20 · good poor
Thu 16:00 0.42 · high 11.60 · high 28.10 · good poor
Thu 17:00 0.44 · high 9.30 · high 28.10 · good poor
Thu 18:00 0.44 · high 6.50 · high 28.10 · good poor
Thu 19:00 0.44 · high 3.80 · good 28.00 · good poor
Thu 20:00 0.42 · high 4.00 · good 28.00 · good poor
Thu 21:00 0.42 · high 2.20 · good 28.00 · good poor
Thu 22:00 0.42 · high 0.50 · good 28.00 · good poor
Thu 23:00 0.44 · high 0.40 · good 27.90 · good poor
Fri 00:00 0.44 · high 0.40 · good 27.90 · good poor
Fri 01:00 0.44 · high 0.70 · good 27.90 · good poor
Fri 02:00 0.46 · high 2.50 · good 27.90 · good poor
Fri 03:00 0.46 · high 4.30 · good 27.90 · good poor
Fri 04:00 0.44 · high 7.60 · high 27.90 · good poor
Fri 05:00 0.44 · high 6.00 · high 27.90 · good poor
Fri 06:00 0.42 · high 6.00 · high 27.90 · good poor
Fri 07:00 0.42 · high 4.90 · good 27.90 · good poor
Fri 08:00 0.42 · high 0.60 · good 28.00 · good poor
Fri 09:00 0.42 · high 6.50 · high 28.10 · good poor
Fri 10:00 0.42 · high 9.90 · high 28.20 · good poor
Fri 11:00 0.40 · high 11.10 · high 28.20 · good poor
Fri 12:00 0.40 · high 13.20 · high 28.30 · good poor
Fri 13:00 0.42 · high 13.20 · high 28.30 · good poor
Fri 14:00 0.44 · high 12.40 · high 28.30 · good poor
Fri 15:00 0.46 · high 13.50 · high 28.30 · good poor
Fri 16:00 0.46 · high 11.70 · high 28.20 · good poor
Fri 17:00 0.48 · high 7.20 · high 28.20 · good poor
Fri 18:00 0.48 · high 3.50 · good 28.20 · good poor
Fri 19:00 0.48 · high 5.90 · high 28.20 · good poor
Fri 20:00 0.46 · high 9.60 · high 28.10 · good poor
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