SnorkelForecast.com

Nosy Be Snorkel Report Today

Madagascar · Updated Tue 04:16 (EAT) · Source: Snapshot

The skinny

Go in the best window Report Wed 01:46

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

Score: 8.4/10

Best time: Wed 07:00

Main risk: Darkness

Best morning signal: Wed 08:00 (Excellent).

Best afternoon signal: Wed 14:00 (Excellent). Peak afternoon wind is about 4.5 m/s.

Email me when it is good

Sunrise

06:10

Sunset

17:36

Water

27.5°C

Max air

27.3°C

Sky

Clear

8% cloud

Good window is available today

Next safe window: Wed 04:00–14:00 (42% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

✅ excellent 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 Wed 04:00 until 14:00.

Why this verdict

Main blockers across the next 72 hours:

  • Darkness (31 hours)
  • Tide/current (15 hours)
  • Waves (11 hours)

Jellyfish drift risk

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

Low · 29/100

Low peak drift risk around Wed 18:00.

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 06:00, Wed 18:00, Thu 07:00, Thu 20:00

Nearby alternatives in Madagascar

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Sat 22:00 – Tue 22:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.76 around Sun 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.

22/24 sampled hours stay at or below 0.36m (range 0.24m to 0.38m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.6 to 4.67m/s).

Tides range from -0.58m to 1.87m; 1 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
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
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
poor ❌ Limited
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
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
good 🌟 Good
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
Sat 22:00 0.24 · good 0.74 · good 27.80 · good poor
Sat 23:00 0.24 · good 0.81 · good 27.70 · good poor
Sun 00:00 0.24 · good 0.60 · good 27.70 · good poor
Sun 01:00 0.24 · good 0.65 · good 27.70 · good poor
Sun 02:00 0.24 · good 0.63 · good 27.70 · good poor
Sun 03:00 0.24 · good 0.78 · good 27.70 · good poor
Sun 04:00 0.24 · good 1.27 · good 27.70 · good excellent
Sun 05:00 0.26 · good 1.12 · good 27.70 · good excellent
Sun 06:00 0.26 · good 1.05 · good 27.70 · good excellent
Sun 07:00 0.26 · good 1.17 · good 27.70 · good excellent
Sun 08:00 0.24 · good 3.02 · good 27.60 · good good
Sun 09:00 0.24 · good 3.24 · good 27.70 · good good
Sun 10:00 0.26 · good 3.94 · good 27.70 · good good
Sun 11:00 0.30 · good 4.67 · good 27.80 · good good
Sun 12:00 0.32 · good 4.65 · good 27.80 · good good
Sun 13:00 0.34 · good 4.48 · good 27.80 · good good
Sun 14:00 0.36 · good 4.20 · good 27.80 · good good
Sun 15:00 0.38 · high 3.91 · good 27.80 · good poor
Sun 16:00 0.38 · high 3.59 · good 27.80 · good poor
Sun 17:00 0.36 · good 3.01 · good 27.70 · good poor
Sun 18:00 0.36 · good 2.65 · good 27.70 · good poor
Sun 19:00 0.36 · good 2.16 · good 27.70 · good poor
Sun 20:00 0.36 · good 1.95 · good 27.70 · good poor
Sun 21:00 0.36 · good 2.01 · good 27.60 · good poor
Sun 22:00 0.36 · good 1.28 · good 27.60 · good poor
Sun 23:00 0.34 · good 1.21 · good 27.60 · good poor
Mon 00:00 0.34 · good 1.30 · good 27.60 · good poor
Mon 01:00 0.34 · good 1.76 · good 27.60 · good poor
Mon 02:00 0.34 · good 2.15 · good 27.50 · good poor
Mon 03:00 0.34 · good 1.92 · good 27.50 · good poor
Mon 04:00 0.34 · good 1.86 · good 27.50 · good good
Mon 05:00 0.34 · good 1.27 · good 27.50 · good good
Mon 06:00 0.34 · good 1.23 · good 27.50 · good good
Mon 07:00 0.34 · good 0.82 · good 27.60 · good good
Mon 08:00 0.34 · good 0.74 · good 27.60 · good good
Mon 09:00 0.34 · good 1.90 · good 27.70 · good good
Mon 10:00 0.36 · good 3.00 · good 27.80 · good good
Mon 11:00 0.36 · good 3.85 · good 27.80 · good good
Mon 12:00 0.38 · high 3.59 · good 27.90 · good good
Mon 13:00 0.40 · high 3.25 · good 27.90 · good good
Mon 14:00 0.40 · high 3.11 · good 27.90 · good good
Mon 15:00 0.42 · high 2.40 · good 27.80 · good poor
Mon 16:00 0.44 · high 1.16 · good 27.80 · good poor
Mon 17:00 0.46 · high 1.13 · good 27.80 · good poor
Mon 18:00 0.48 · high 0.90 · good 27.70 · good poor
Mon 19:00 0.50 · high 0.70 · good 27.70 · good poor
Mon 20:00 0.54 · high 2.80 · good 27.70 · good poor
Mon 21:00 0.56 · high 3.07 · good 27.70 · good poor
Mon 22:00 0.56 · high 2.20 · good 27.70 · good poor
Mon 23:00 0.58 · high 1.66 · good 27.60 · good poor
Tue 00:00 0.58 · high 1.66 · good 27.60 · good poor
Tue 01:00 0.58 · high 0.78 · good 27.60 · good poor
Tue 02:00 0.58 · high 0.61 · good 27.60 · good poor
Tue 03:00 0.58 · high 0.18 · good 27.50 · good poor
Tue 04:00 0.58 · high 0.32 · good 27.50 · good fair
Tue 05:00 0.56 · high 0.50 · good 27.50 · good fair
Tue 06:00 0.56 · high 0.51 · good 27.50 · good fair
Tue 07:00 0.56 · high 0.67 · good 27.60 · good good
Tue 08:00 0.56 · high 1.39 · good 27.60 · good good
Tue 09:00 0.56 · high 2.56 · good 27.70 · good good
Tue 10:00 0.56 · high 3.15 · good 27.80 · good fair
Tue 11:00 0.56 · high 3.31 · good 27.90 · good fair
Tue 12:00 0.56 · high 3.65 · good 27.90 · good good
Tue 13:00 0.58 · high 4.21 · good 27.90 · good good
Tue 14:00 0.60 · high 4.16 · good 27.90 · good good
Tue 15:00 0.62 · high 3.32 · good 27.90 · good poor
Tue 16:00 0.64 · high 2.07 · good 27.80 · good poor
Tue 17:00 0.64 · high 1.20 · good 27.80 · good poor
Tue 18:00 0.66 · high 0.85 · good 27.80 · good poor
Tue 19:00 0.66 · high 0.50 · good 27.80 · good poor
Tue 20:00 0.66 · high 0.96 · good 27.70 · good poor
Tue 21:00 0.66 · high 0.93 · good 27.70 · good poor