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 20:56

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

27.6°C

Max air

22.7°C

Sky

Clear

7% cloud

Good window is available today

Next safe window: Thu 04:00–14:00 (32% 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 (23 hours)
  • Waves (9 hours)
  • Tide/current (4 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

Wed 18:00, Thu 07:00, Thu 20:00

Nearby alternatives in Madagascar

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Tue 17:00 – Fri 17:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.77 around Wed 09:00; 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 0.22m to 0.36m).

Wind is at or below 5.4m/s in 10/24 sampled hours (range 0.4 to 16.3m/s).

Tides range from -0.72m to 2.04m; 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
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
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
good 🌟 Good
good 🌟 Good
good 🌟 Good
excellent ✅ Excellent
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
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
Wed 19:00 0.34 · good 2.70 · good 27.90 · good poor
Wed 20:00 0.30 · good 12.50 · high 27.90 · good poor
Wed 21:00 0.28 · good 2.70 · good 27.90 · good poor
Wed 22:00 0.28 · good 2.40 · good 27.90 · good poor
Wed 23:00 0.26 · good 3.70 · good 27.80 · good poor
Thu 00:00 0.26 · good 4.50 · good 27.80 · good poor
Thu 01:00 0.26 · good 4.00 · good 27.80 · good poor
Thu 02:00 0.26 · good 2.30 · good 27.80 · good poor
Thu 03:00 0.26 · good 2.40 · good 27.70 · good poor
Thu 04:00 0.26 · good 6.10 · high 27.70 · good good
Thu 05:00 0.28 · good 6.10 · high 27.70 · good good
Thu 06:00 0.28 · good 2.40 · good 27.70 · good good
Thu 07:00 0.28 · good 1.20 · good 27.70 · good excellent
Thu 08:00 0.26 · good 5.90 · high 27.80 · good good
Thu 09:00 0.26 · good 9.70 · high 27.90 · good good
Thu 10:00 0.26 · good 13.40 · high 27.90 · good fair
Thu 11:00 0.26 · good 14.40 · high 28.00 · good fair
Thu 12:00 0.26 · good 16.10 · high 28.00 · good fair
Thu 13:00 0.30 · good 17.90 · high 28.00 · good good
Thu 14:00 0.36 · good 18.40 · high 28.00 · good fair
Thu 15:00 0.40 · high 15.20 · high 28.00 · good poor
Thu 16:00 0.40 · high 10.10 · high 27.90 · good poor
Thu 17:00 0.42 · high 7.30 · high 27.90 · good poor
Thu 18:00 0.42 · high 3.40 · good 27.80 · good poor
Thu 19:00 0.40 · high 17.50 · high 27.80 · good poor
Thu 20:00 0.40 · high 3.10 · good 27.80 · good poor
Thu 21:00 0.38 · high 2.20 · good 27.70 · good poor
Thu 22:00 0.38 · high 3.50 · good 27.70 · good poor
Thu 23:00 0.38 · high 7.70 · high 27.70 · good poor
Fri 00:00 0.38 · high 8.10 · high 27.70 · good poor
Fri 01:00 0.38 · high 6.90 · high 27.70 · good poor
Fri 02:00 0.38 · high 6.30 · high 27.60 · good poor
Fri 03:00 0.38 · high 7.50 · high 27.60 · good poor
Fri 04:00 0.38 · high 9.60 · high 27.60 · good good
Fri 05:00 0.38 · high 7.80 · high 27.60 · good fair
Fri 06:00 0.38 · high 3.60 · good 27.60 · good good
Fri 07:00 0.36 · good 0.60 · good 27.60 · good good
Fri 08:00 0.36 · good 5.50 · high 27.70 · good good
Fri 09:00 0.34 · good 9.40 · high 27.70 · good fair
Fri 10:00 0.34 · good 11.80 · high 27.80 · good fair
Fri 11:00 0.30 · good 12.10 · high 27.80 · good fair
Fri 12:00 0.30 · good 11.60 · high 27.90 · good fair
Fri 13:00 0.34 · good 16.10 · high 27.90 · good fair
Fri 14:00 0.38 · high 19.50 · high 27.90 · good fair
Fri 15:00 0.42 · high 19.50 · high 27.80 · good poor
Fri 16:00 0.42 · high 13.60 · high 27.80 · good poor