Can you snorkel in Nosy Be today?

Yes. The next good snorkeling window in Nosy Be starts Wed 04:00 and lasts until 14:00. Around 43% of the next 72 hours are suitable.

What is the best time of day to snorkel in Nosy Be?

Snorkel during daylight, ideally in the morning before the wind picks up, and around high slack tide when water is clearest and currents are weakest. SnorkelForecast scores every daylight hour in Nosy Be so you can pick the calmest window.

What is the best tide for snorkeling?

High slack tide — within about an hour of the high-tide peak when currents are weakest — is the safest, clearest window. Strong low tides, strong tidal flow near channels or headlands, and large tidal-range days reduce score.

Nosy Be Snorkel Report Today

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

The skinny

Go in the best window Report Wed 03:23

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

06:09

Sunset

17:37

Water

27.5°C

Max air

27.3°C

Sky

Clear

9% cloud

Good window is available today

Next safe window: Wed 04:00–14:00 (43% 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 (29 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 00:00 – Tue 00:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.76 around Sat 13:00; 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 0.3m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.0 to 4.04m/s).

Tides range from -0.31m to 1.65m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview

Sat 00:00 poor ❌ Limited

Sat 01:00 poor ❌ Limited

Sat 02:00 poor ❌ Limited

Sat 03:00 poor ❌ Limited

Sat 04:00 good 🌟 Good

Sat 05:00 good 🌟 Good

Sat 06:00 good 🌟 Good

Sat 07:00 good 🌟 Good

Sat 08:00 good 🌟 Good

Sat 09:00 good 🌟 Good

Sat 10:00 excellent ✅ Excellent

Sat 11:00 excellent ✅ Excellent

Sat 12:00 good 🌟 Good

Sat 13:00 good 🌟 Good

Sat 14:00 good 🌟 Good

Sat 15:00 poor ❌ Limited

Sat 16:00 poor ❌ Limited

Sat 17:00 poor ❌ Limited

Sat 18:00 poor ❌ Limited

Sat 19:00 poor ❌ Limited

Sat 20:00 poor ❌ Limited

Sat 21:00 poor ❌ Limited

Sat 22:00 poor ❌ Limited

Sat 23:00 poor ❌ Limited

Sun 00:00 poor ❌ Limited

Sun 01:00 poor ❌ Limited

Sun 02:00 poor ❌ Limited

Sun 03:00 poor ❌ Limited

Sun 04:00 excellent ✅ Excellent

Sun 05:00 excellent ✅ Excellent

Sun 06:00 excellent ✅ Excellent

Sun 07:00 excellent ✅ Excellent

Sun 08:00 good 🌟 Good

Sun 09:00 good 🌟 Good

Sun 10:00 good 🌟 Good

Sun 11:00 good 🌟 Good

Sun 12:00 good 🌟 Good

Sun 13:00 good 🌟 Good

Sun 14:00 good 🌟 Good

Sun 15:00 poor ❌ Limited

Sun 16:00 poor ❌ Limited

Sun 17:00 poor ❌ Limited

Sun 18:00 poor ❌ Limited

Sun 19:00 poor ❌ Limited

Sun 20:00 poor ❌ Limited

Sun 21:00 poor ❌ Limited

Sun 22:00 poor ❌ Limited

Sun 23:00 poor ❌ Limited

Mon 00:00 poor ❌ Limited

Mon 01:00 poor ❌ Limited

Mon 02:00 poor ❌ Limited

Mon 03:00 poor ❌ Limited

Mon 04:00 good 🌟 Good

Mon 05:00 good 🌟 Good

Mon 06:00 good 🌟 Good

Mon 07:00 good 🌟 Good

Mon 08:00 good 🌟 Good

Mon 09:00 good 🌟 Good

Mon 10:00 good 🌟 Good

Mon 11:00 good 🌟 Good

Mon 12:00 good 🌟 Good

Mon 13:00 good 🌟 Good

Mon 14:00 good 🌟 Good

Mon 15:00 poor ❌ Limited

Mon 16:00 poor ❌ Limited

Mon 17:00 poor ❌ Limited

Mon 18:00 poor ❌ Limited

Mon 19:00 poor ❌ Limited

Mon 20:00 poor ❌ Limited

Mon 21:00 poor ❌ Limited

Mon 22:00 poor ❌ Limited

Mon 23:00 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 00:00	0.24 · good	1.07 · good	27.60 · good	poor
Sat 01:00	0.24 · good	1.16 · good	27.60 · good	poor
Sat 02:00	0.22 · good	1.03 · good	27.60 · good	poor
Sat 03:00	0.22 · good	1.12 · good	27.60 · good	poor
Sat 04:00	0.22 · good	1.73 · good	27.60 · good	good
Sat 05:00	0.22 · good	1.05 · good	27.60 · good	good
Sat 06:00	0.22 · good	0.81 · good	27.60 · good	good
Sat 07:00	0.22 · good	1.24 · good	27.60 · good	good
Sat 08:00	0.22 · good	1.95 · good	27.70 · good	good
Sat 09:00	0.22 · good	2.58 · good	27.80 · good	good
Sat 10:00	0.22 · good	3.20 · good	27.80 · good	excellent
Sat 11:00	0.22 · good	3.71 · good	27.90 · good	excellent
Sat 12:00	0.22 · good	4.04 · good	27.90 · good	good
Sat 13:00	0.24 · good	3.71 · good	27.90 · good	good
Sat 14:00	0.28 · good	3.26 · good	27.90 · good	good
Sat 15:00	0.30 · good	2.77 · good	27.90 · good	poor
Sat 16:00	0.28 · good	2.38 · good	27.90 · good	poor
Sat 17:00	0.28 · good	1.10 · good	27.80 · good	poor
Sat 18:00	0.26 · good	1.12 · good	27.80 · good	poor
Sat 19:00	0.26 · good	0.00 · good	27.80 · good	poor
Sat 20:00	0.24 · good	0.80 · good	27.80 · good	poor
Sat 21:00	0.24 · good	0.85 · good	27.80 · good	poor
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