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 Wed 22:56

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

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:09

Sunset

17:37

Water

27.5°C

Max air

22.3°C

Sky

Clear

7% cloud

Good window is available today

Next safe window: Thu 04:00–14:00 (34% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

❌ poor conditions

Main blocker: Tide/current

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 (21 hours)
  • Waves (9 hours)
  • Tide/current (2 hours)

Jellyfish drift risk

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

Low · 28/100

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

Thu 07:00, Thu 20:00

Nearby alternatives in Madagascar

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Sun 19:00 – Wed 19:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.72 around Mon 08:00; 11 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 0.26m to 0.32m).

Wind is at or below 5.4m/s in 16/24 sampled hours (range 0.2 to 12.5m/s).

Tides range from -0.53m to 1.92m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
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
excellent ✅ Excellent
excellent ✅ Excellent
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
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
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
Mon 21:00 0.26 · good 9.60 · high 28.00 · good poor
Mon 22:00 0.26 · good 1.70 · good 28.00 · good poor
Mon 23:00 0.26 · good 0.80 · good 27.90 · good poor
Tue 00:00 0.26 · good 1.20 · good 27.90 · good poor
Tue 01:00 0.26 · good 0.60 · good 27.90 · good poor
Tue 02:00 0.26 · good 0.40 · good 27.90 · good poor
Tue 03:00 0.26 · good 1.30 · good 27.80 · good poor
Tue 04:00 0.26 · good 3.10 · good 27.80 · good good
Tue 05:00 0.26 · good 2.00 · good 27.80 · good good
Tue 06:00 0.26 · good 2.60 · good 27.80 · good good
Tue 07:00 0.26 · good 5.10 · good 27.90 · good good
Tue 08:00 0.26 · good 8.00 · high 27.90 · good fair
Tue 09:00 0.26 · good 11.20 · high 28.00 · good fair
Tue 10:00 0.26 · good 13.50 · high 28.00 · good fair
Tue 11:00 0.26 · good 14.40 · high 28.10 · good fair
Tue 12:00 0.26 · good 15.00 · high 28.10 · good good
Tue 13:00 0.30 · good 16.50 · high 28.10 · good good
Tue 14:00 0.34 · good 17.80 · high 28.10 · good fair
Tue 15:00 0.38 · high 16.80 · high 28.10 · good poor
Tue 16:00 0.38 · high 12.10 · high 28.00 · good poor
Tue 17:00 0.36 · good 7.50 · high 28.00 · good poor
Tue 18:00 0.36 · good 5.20 · good 28.00 · good poor
Tue 19:00 0.32 · good 4.90 · good 28.00 · good poor
Tue 20:00 0.30 · good 6.10 · high 27.90 · good poor
Tue 21:00 0.26 · good 2.40 · good 27.90 · good poor
Tue 22:00 0.26 · good 0.80 · good 27.90 · good poor
Tue 23:00 0.24 · good 0.40 · good 27.80 · good poor
Wed 00:00 0.24 · good 0.60 · good 27.80 · good poor
Wed 01:00 0.24 · good 4.20 · good 27.80 · good poor
Wed 02:00 0.24 · good 6.20 · high 27.80 · good poor
Wed 03:00 0.24 · good 7.50 · high 27.80 · good poor
Wed 04:00 0.24 · good 8.20 · high 27.80 · good good
Wed 05:00 0.22 · good 4.30 · good 27.80 · good good
Wed 06:00 0.22 · good 1.10 · good 27.80 · good excellent
Wed 07:00 0.22 · good 2.60 · good 27.80 · good excellent
Wed 08:00 0.22 · good 6.10 · high 27.90 · good good
Wed 09:00 0.22 · good 10.10 · high 27.90 · good fair
Wed 10:00 0.22 · good 11.70 · high 28.00 · good fair
Wed 11:00 0.22 · good 12.60 · high 28.00 · good good
Wed 12:00 0.22 · good 14.10 · high 28.10 · good good
Wed 13:00 0.26 · good 16.30 · high 28.10 · good good
Wed 14:00 0.32 · good 16.10 · high 28.10 · good fair
Wed 15:00 0.36 · good 13.60 · high 28.00 · good poor
Wed 16:00 0.36 · good 11.60 · high 28.00 · good poor
Wed 17:00 0.36 · good 7.60 · high 28.00 · good poor
Wed 18:00 0.36 · good 4.50 · good 27.90 · good poor