MARINE REPORT / 72 HOURS

Nosy Be Snorkel Report Today

Madagascar · Updated Sat 09:41 (EAT) · Source: Snapshot

The skinny

Go in the best window Data updated Sat 09:41 (EAT)

Nosy Be has a usable snorkeling window around Sat 11:00. The main thing to watch is tide/current.

Right now (forecast)

Good · 6.9/10

Sat 10:00 (EAT)

Later today

Good · 6.6/10

Sat 11:00 (EAT)

Next three days

Good · 7.1/10

Mon 08:00 (EAT)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 6.6/10

Best time: Sat 11:00

Main risk: Tide/Current

Best morning signal: Sat 11:00 (Good).

Best afternoon signal: Sat 12:00 (Good). Peak afternoon wind is about 4.9 m/s.

Email me when it is good

Sunrise

05:20

Sunset

17:44

Water

28.4°C

Max air

28.9°C

Sky

Clear

15% cloud

Good model window in the next 72 hours

Next good model window: Sat 11:00–14:00 (39% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Saturday

✅ Good conditions

Main blocker: Tide/current

Sunday

✅ Good conditions

Main blocker: Tide/current

Monday

✅ Good conditions

Main blocker: Tide/current

Best available hours

The next good model window starts at Sat 11:00 and lasts until 14:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (70 hours)
  • Waves (52 hours)
  • Darkness (36 hours)

Jellyfish drift risk

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

Low · 31/100

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

Next early morning high tide: Sun 07:00

Sat 19:00, Sun 07:00, Sun 20:00, Mon 09:00

Nearby alternatives in Madagascar

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Mon 10:00 – Thu 10:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.67 around Tue 09:00; 12 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 0.4m to 0.56m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.11 to 5.05m/s).

Tides range from -1.07m to 2.38m; 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
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
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
Excellent ✅ Excellent
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Mon 10:00 0.40 · high 1.63 · good 28.50 · good Good
Mon 11:00 0.40 · high 2.35 · good 28.60 · good Good
Mon 12:00 0.40 · high 3.42 · good 28.70 · good Good
Mon 13:00 0.42 · high 5.05 · good 28.80 · good Good
Mon 14:00 0.46 · high 4.49 · good 28.90 · good Good
Mon 15:00 0.48 · high 4.88 · good 28.80 · good Good
Mon 16:00 0.48 · high 5.01 · good 28.80 · good Good
Mon 17:00 0.50 · high 4.19 · good 28.80 · good Good
Mon 18:00 0.50 · high 3.01 · good 28.80 · good Poor
Mon 19:00 0.56 · high 1.98 · good 28.80 · good Poor
Mon 20:00 0.54 · high 1.15 · good 28.80 · good Poor
Mon 21:00 0.52 · high 0.60 · good 28.80 · good Poor
Mon 22:00 0.50 · high 1.26 · good 28.80 · good Poor
Mon 23:00 0.48 · high 0.86 · good 28.70 · good Poor
Tue 00:00 0.46 · high 0.35 · good 28.70 · good Poor
Tue 01:00 0.46 · high 0.47 · good 28.70 · good Poor
Tue 02:00 0.46 · high 0.70 · good 28.70 · good Poor
Tue 03:00 0.46 · high 0.11 · good 28.70 · good Poor
Tue 04:00 0.46 · high 1.10 · good 28.70 · good Poor
Tue 05:00 0.46 · high 2.80 · good 28.70 · good Poor
Tue 06:00 0.46 · high 3.59 · good 28.70 · good Good
Tue 07:00 0.46 · high 3.17 · good 28.70 · good Good
Tue 08:00 0.44 · high 2.18 · good 28.70 · good Good
Tue 09:00 0.44 · high 0.96 · good 28.70 · good Good
Tue 10:00 0.42 · high 0.96 · good 28.80 · good Good
Tue 11:00 0.42 · high 2.65 · good 28.90 · good Good
Tue 12:00 0.40 · high 4.69 · good 29.00 · good Good
Tue 13:00 0.42 · high 4.69 · good 29.10 · good Good
Tue 14:00 0.44 · high 5.15 · good 29.00 · good Good
Tue 15:00 0.48 · high 4.92 · good 29.10 · good Good
Tue 16:00 0.50 · high 4.27 · good 29.10 · good Good
Tue 17:00 0.50 · high 4.27 · good 29.10 · good Good
Tue 18:00 0.52 · high 2.30 · good 29.10 · good Poor
Tue 19:00 0.50 · high 0.82 · good 29.00 · good Poor
Tue 20:00 0.48 · high 1.01 · good 29.00 · good Poor
Tue 21:00 0.48 · high 1.27 · good 29.00 · good Poor
Tue 22:00 0.48 · high 1.20 · good 28.90 · good Poor
Tue 23:00 0.48 · high 0.83 · good 28.90 · good Poor
Wed 00:00 0.48 · high 1.03 · good 28.90 · good Poor
Wed 01:00 0.48 · high 1.11 · good 28.80 · good Poor
Wed 02:00 0.48 · high 0.83 · good 28.80 · good Poor
Wed 03:00 0.48 · high 0.65 · good 28.80 · good Poor
Wed 04:00 0.48 · high 1.21 · good 28.80 · good Poor
Wed 05:00 0.46 · high 1.15 · good 28.70 · good Poor
Wed 06:00 0.46 · high 0.65 · good 28.70 · good Excellent
Wed 07:00 0.44 · high 0.21 · good 28.70 · good Good
Wed 08:00 0.44 · high 0.63 · good 28.70 · good Good
Wed 09:00 0.42 · high 0.39 · good 28.70 · good Good
Wed 10:00 0.40 · high 0.55 · good 28.80 · good Good
Wed 11:00 0.40 · high 1.95 · good 28.80 · good Good
Wed 12:00 0.38 · high 4.26 · good 28.90 · good Good
Wed 13:00 0.40 · high 5.00 · good 29.00 · good Good
Wed 14:00 0.42 · high 4.51 · good 29.00 · good Good
Wed 15:00 0.44 · high 5.40 · good 29.10 · good Good
Wed 16:00 0.46 · high 4.94 · good 29.10 · good Good
Wed 17:00 0.46 · high 4.35 · good 29.00 · good Good
Wed 18:00 0.46 · high 3.05 · good 29.00 · good Poor
Wed 19:00 0.44 · high 1.14 · good 29.00 · good Poor
Wed 20:00 0.44 · high 1.22 · good 28.90 · good Poor
Wed 21:00 0.42 · high 2.25 · good 28.90 · good Poor
Wed 22:00 0.42 · high 0.93 · good 28.80 · good Poor
Wed 23:00 0.44 · high 0.97 · good 28.80 · good Poor
Thu 00:00 0.44 · high 0.15 · good 28.80 · good Poor
Thu 01:00 0.44 · high 0.92 · good 28.70 · good Poor
Thu 02:00 0.42 · high 1.17 · good 28.70 · good Poor
Thu 03:00 0.42 · high 0.89 · good 28.70 · good Poor
Thu 04:00 0.42 · high 0.60 · good 28.70 · good Poor
Thu 05:00 0.40 · high 0.50 · good 28.60 · good Poor
Thu 06:00 0.40 · high 1.28 · good 28.60 · good Good
Thu 07:00 0.38 · high 1.50 · good 28.60 · good Good
Thu 08:00 0.38 · high 0.85 · good 28.60 · good Good
Thu 09:00 0.36 · good 1.36 · good 28.60 · good Good