Can you snorkel in Nosy Be today?

Yes. The next good snorkeling window in Nosy Be starts Thu 04:00 and lasts until 14:00. Around 30% 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 · Showing fallback/stale data

The skinny

Go in the best window Report Wed 17:53

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

27.7°C

Max air

23.5°C

Sky

Clear

0% cloud

Good window is available today

Next safe window: Thu 04:00–14:00 (30% 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 (26 hours)
Waves (11 hours)
Tide/current (7 hours)

Jellyfish drift risk

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

Low · 29/100

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

Thu 14:00 – Sun 14:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.72 around Fri 10:00; 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.

8/24 sampled hours stay at or below 0.36m (range 0.3m to 0.42m).

Wind is at or below 5.4m/s in 6/24 sampled hours (range 0.6 to 18.4m/s).

Tides range from -0.79m to 2.02m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview

Thu 14:00 fair ⚠️ Fair

Thu 15:00 poor ❌ Limited

Thu 16:00 poor ❌ Limited

Thu 17:00 poor ❌ Limited

Thu 18:00 poor ❌ Limited

Thu 19:00 poor ❌ Limited

Thu 20:00 poor ❌ Limited

Thu 21:00 poor ❌ Limited

Thu 22:00 poor ❌ Limited

Thu 23:00 poor ❌ Limited

Fri 00:00 poor ❌ Limited

Fri 01:00 poor ❌ Limited

Fri 02:00 poor ❌ Limited

Fri 03:00 poor ❌ Limited

Fri 04:00 good 🌟 Good

Fri 05:00 fair ⚠️ Fair

Fri 06:00 good 🌟 Good

Fri 07:00 good 🌟 Good

Fri 08:00 good 🌟 Good

Fri 09:00 fair ⚠️ Fair

Fri 10:00 fair ⚠️ Fair

Fri 11:00 fair ⚠️ Fair

Fri 12:00 fair ⚠️ Fair

Fri 13:00 fair ⚠️ Fair

Fri 14:00 fair ⚠️ Fair

Fri 15:00 poor ❌ Limited

Fri 16:00 poor ❌ Limited

Fri 17:00 poor ❌ Limited

Fri 18:00 poor ❌ Limited

Fri 19:00 poor ❌ Limited

Fri 20:00 poor ❌ Limited

Fri 21:00 poor ❌ Limited

Fri 22:00 poor ❌ Limited

Fri 23:00 poor ❌ Limited

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 fair ⚠️ Fair

Sat 07:00 fair ⚠️ Fair

Sat 08:00 good 🌟 Good

Sat 09:00 fair ⚠️ Fair

Sat 10:00 fair ⚠️ Fair

Sat 11:00 fair ⚠️ Fair

Sat 12:00 fair ⚠️ Fair

Sat 13:00 fair ⚠️ Fair

Sat 14:00 fair ⚠️ Fair

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 good 🌟 Good

Sun 08:00 good 🌟 Good

Sun 09:00 good 🌟 Good

Sun 10:00 fair ⚠️ Fair

Sun 11:00 fair ⚠️ Fair

Sun 12:00 fair ⚠️ Fair

Sun 13:00 fair ⚠️ Fair

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
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
Fri 17:00	0.42 · high	12.30 · high	27.80 · good	poor
Fri 18:00	0.42 · high	8.90 · high	27.70 · good	poor
Fri 19:00	0.42 · high	8.20 · high	27.70 · good	poor
Fri 20:00	0.40 · high	6.60 · high	27.70 · good	poor
Fri 21:00	0.40 · high	4.80 · good	27.60 · good	poor
Fri 22:00	0.38 · high	5.00 · good	27.60 · good	poor
Fri 23:00	0.38 · high	4.80 · good	27.60 · good	poor
Sat 00:00	0.36 · good	5.20 · good	27.60 · good	poor
Sat 01:00	0.34 · good	4.00 · good	27.60 · good	poor
Sat 02:00	0.34 · good	3.60 · good	27.50 · good	poor
Sat 03:00	0.32 · good	0.70 · good	27.50 · good	poor
Sat 04:00	0.32 · good	1.70 · good	27.50 · good	good
Sat 05:00	0.30 · good	2.30 · good	27.50 · good	good
Sat 06:00	0.30 · good	4.10 · good	27.50 · good	fair
Sat 07:00	0.30 · good	4.30 · good	27.60 · good	fair
Sat 08:00	0.28 · good	5.20 · good	27.60 · good	good
Sat 09:00	0.28 · good	9.00 · high	27.70 · good	fair
Sat 10:00	0.28 · good	10.70 · high	27.70 · good	fair
Sat 11:00	0.28 · good	9.20 · high	27.80 · good	fair
Sat 12:00	0.28 · good	10.60 · high	27.80 · good	fair
Sat 13:00	0.28 · good	12.00 · high	27.80 · good	fair
Sat 14:00	0.26 · good	10.50 · high	27.80 · good	fair
Sat 15:00	0.26 · good	8.80 · high	27.80 · good	poor
Sat 16:00	0.26 · good	5.10 · good	27.80 · good	poor
Sat 17:00	0.26 · good	3.40 · good	27.80 · good	poor
Sat 18:00	0.26 · good	1.80 · good	27.80 · good	poor
Sat 19:00	0.26 · good	1.00 · good	27.80 · good	poor
Sat 20:00	0.26 · good	0.90 · good	27.70 · good	poor
Sat 21:00	0.26 · good	1.90 · good	27.70 · good	poor
Sat 22:00	0.26 · good	3.10 · good	27.70 · good	poor
Sat 23:00	0.26 · good	2.60 · good	27.60 · good	poor
Sun 00:00	0.26 · good	2.00 · good	27.60 · good	poor
Sun 01:00	0.26 · good	1.20 · good	27.60 · good	poor
Sun 02:00	0.26 · good	0.50 · good	27.60 · good	poor
Sun 03:00	0.26 · good	0.00 · good	27.60 · good	poor
Sun 04:00	0.26 · good	0.60 · good	27.60 · good	excellent
Sun 05:00	0.28 · good	1.10 · good	27.60 · good	excellent
Sun 06:00	0.28 · good	1.30 · good	27.60 · good	excellent
Sun 07:00	0.28 · good	1.30 · good	27.70 · good	good
Sun 08:00	0.30 · good	1.60 · good	27.70 · good	good
Sun 09:00	0.30 · good	2.50 · good	27.80 · good	good
Sun 10:00	0.32 · good	7.90 · high	27.90 · good	fair
Sun 11:00	0.34 · good	11.50 · high	27.90 · good	fair
Sun 12:00	0.36 · good	13.50 · high	28.00 · good	fair
Sun 13:00	0.40 · high	14.70 · high	28.00 · good	fair