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 09:55

Nosy Be has a usable snorkeling window around Wed 10:00. The main thing to watch is darkness.

Score: 8.5/10

Best time: Wed 10:00

Main risk: Darkness

Best morning signal: Wed 10:00 (Excellent).

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

Email me when it is good

Sunrise

06:09

Sunset

17:37

Water

27.5°C

Max air

27.3°C

Sky

Partly cloudy

54% cloud

Good window is available today

Next safe window: Wed 07:00–14:00 (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 07:00 until 14:00.

Why this verdict

Main blockers across the next 72 hours:

  • Darkness (26 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 18:00, Thu 07:00, Thu 20:00

Nearby alternatives in Madagascar

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Tue 06:00 – Fri 06:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.74 around Wed 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.

0/24 sampled hours stay at or below 0.36m (range 0.42m to 0.46m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.32 to 4.23m/s).

Tides range from -0.46m to 1.39m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
good 🌟 Good
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
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
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
excellent ✅ Excellent
excellent ✅ Excellent
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 06:00 0.42 · high 1.10 · good 27.70 · good good
Tue 07:00 0.42 · high 1.03 · good 27.70 · good good
Tue 08:00 0.42 · high 1.81 · good 27.80 · good good
Tue 09:00 0.42 · high 1.91 · good 27.80 · good good
Tue 10:00 0.42 · high 2.39 · good 27.90 · good good
Tue 11:00 0.42 · high 3.00 · good 27.90 · good good
Tue 12:00 0.42 · high 4.23 · good 28.00 · good good
Tue 13:00 0.44 · high 4.12 · good 28.00 · good good
Tue 14:00 0.44 · high 2.70 · good 28.00 · good good
Tue 15:00 0.46 · high 0.74 · good 28.00 · good poor
Tue 16:00 0.44 · high 1.00 · good 27.90 · good poor
Tue 17:00 0.44 · high 0.32 · good 27.90 · good poor
Tue 18:00 0.42 · high 2.10 · good 27.90 · good poor
Tue 19:00 0.42 · high 2.04 · good 27.80 · good poor
Tue 20:00 0.42 · high 0.46 · good 27.80 · good poor
Tue 21:00 0.42 · high 0.94 · good 27.80 · good poor
Tue 22:00 0.44 · high 1.30 · good 27.70 · good poor
Tue 23:00 0.44 · high 1.43 · good 27.70 · good poor
Wed 00:00 0.46 · high 1.42 · good 27.70 · good poor
Wed 01:00 0.46 · high 1.30 · good 27.60 · good poor
Wed 02:00 0.44 · high 1.35 · good 27.60 · good poor
Wed 03:00 0.44 · high 0.92 · good 27.60 · good poor
Wed 04:00 0.42 · high 1.35 · good 27.60 · good good
Wed 05:00 0.42 · high 0.70 · good 27.60 · good excellent
Wed 06:00 0.40 · high 0.39 · good 27.60 · good excellent
Wed 07:00 0.38 · high 1.25 · good 27.60 · good excellent
Wed 08:00 0.38 · high 1.81 · good 27.70 · good good
Wed 09:00 0.36 · good 1.38 · good 27.70 · good good
Wed 10:00 0.36 · good 2.97 · good 27.80 · good good
Wed 11:00 0.34 · good 4.12 · good 27.80 · good good
Wed 12:00 0.34 · good 3.40 · good 27.90 · good good
Wed 13:00 0.36 · good 3.32 · good 27.90 · good good
Wed 14:00 0.36 · good 2.77 · good 27.90 · good good
Wed 15:00 0.38 · high 1.41 · good 27.90 · good poor
Wed 16:00 0.36 · good 1.11 · good 27.80 · good poor
Wed 17:00 0.36 · good 0.94 · good 27.80 · good poor
Wed 18:00 0.34 · good 0.60 · good 27.80 · good poor
Wed 19:00 0.34 · good 0.21 · good 27.80 · good poor
Wed 20:00 0.34 · good 0.57 · good 27.70 · good poor
Wed 21:00 0.34 · good 1.48 · good 27.70 · good poor
Wed 22:00 0.34 · good 2.58 · good 27.70 · good poor
Wed 23:00 0.32 · good 2.82 · good 27.60 · good poor
Thu 00:00 0.32 · good 1.25 · good 27.60 · good poor
Thu 01:00 0.32 · good 1.10 · good 27.60 · good poor
Thu 02:00 0.32 · good 1.17 · good 27.60 · good poor
Thu 03:00 0.32 · good 1.06 · good 27.60 · good poor
Thu 04:00 0.32 · good 1.19 · good 27.60 · good excellent
Thu 05:00 0.32 · good 0.85 · good 27.60 · good excellent
Thu 06:00 0.32 · good 0.40 · good 27.60 · good excellent
Thu 07:00 0.32 · good 1.17 · good 27.60 · good excellent
Thu 08:00 0.30 · good 2.30 · good 27.70 · good excellent
Thu 09:00 0.34 · good 3.27 · good 27.80 · good good
Thu 10:00 0.34 · good 3.83 · good 27.80 · good good
Thu 11:00 0.36 · good 3.66 · good 27.90 · good good
Thu 12:00 0.36 · good 3.44 · good 27.90 · good good
Thu 13:00 0.36 · good 3.51 · good 27.90 · good good
Thu 14:00 0.38 · high 3.45 · good 27.90 · good good
Thu 15:00 0.38 · high 3.34 · good 27.90 · good poor
Thu 16:00 0.36 · good 3.51 · good 27.80 · good poor
Thu 17:00 0.36 · good 1.77 · good 27.80 · good poor
Thu 18:00 0.34 · good 0.36 · good 27.80 · good poor
Thu 19:00 0.32 · good 0.35 · good 27.70 · good poor
Thu 20:00 0.28 · good 0.85 · good 27.70 · good poor
Thu 21:00 0.26 · good 1.01 · good 27.70 · good poor
Thu 22:00 0.26 · good 0.86 · good 27.70 · good poor
Thu 23:00 0.26 · good 0.53 · good 27.60 · good poor
Fri 00:00 0.26 · good 0.40 · good 27.60 · good poor
Fri 01:00 0.26 · good 0.25 · good 27.60 · good poor
Fri 02:00 0.26 · good 0.05 · good 27.60 · good poor
Fri 03:00 0.26 · good 0.40 · good 27.50 · good poor
Fri 04:00 0.26 · good 1.15 · good 27.50 · good excellent
Fri 05:00 0.26 · good 0.79 · good 27.50 · good excellent