Can you snorkel in Fernando de Noronha today?

Conditions look marginal right now — no clearly safe snorkeling window is forecast in Fernando de Noronha over the next 72 hours. Check the hourly table for the calmest period.

What is the best time of day to snorkel in Fernando de Noronha?

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 Fernando de Noronha 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.

Fernando de Noronha Snorkel Report Today

Brazil · Updated Tue 04:14 (-02) · Source: Snapshot

The skinny

Marginal Report Tue 21:43

Fernando de Noronha looks marginal today. The least-bad daylight window is around Wed 14:00, but waves is limiting the forecast.

Score: 3.6/10

Best time: Wed 14:00

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:18

Sunset

18:14

Water

27.2°C

Max air

26.0°C

Sky

Clear

29% cloud

No safe window in the next 72 hours

Use the best-available section for the least-bad times.

3-day planner Best available Show data

3-day planner

Tuesday

❌ poor conditions

Main blocker: Waves

Wednesday

⚠️ fair conditions

Main blocker: Waves

Thursday

⚠️ fair conditions

Main blocker: Waves

Best available hours

Wed 16:00 — Fair (0.36) · still limited by waves, wind
Thu 18:00 — Fair (0.35) · still limited by waves, wind
Thu 17:00 — Fair (0.35) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

Waves (52 hours)
Wind (52 hours)
Tide/current (52 hours)

Jellyfish drift risk

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

Low · 34/100

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: Thu 02:00

Wed 13:00, Thu 02:00, Thu 14:00

Nearby alternatives in Brazil

Arraial do Cabo

2363 km away

❌ Poor

Advanced forecast data

Viewing historical data

Sat 23:00 – Tue 23:00 (-02)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.27 around Sun 18:00; 0 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 2.06m to 2.28m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 7.24 to 9.67m/s).

Tides range from -0.94m to 0.96m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview

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 poor ❌ Limited

Sun 05:00 poor ❌ Limited

Sun 06:00 poor ❌ Limited

Sun 07:00 poor ❌ Limited

Sun 08:00 poor ❌ Limited

Sun 09:00 poor ❌ Limited

Sun 10:00 poor ❌ Limited

Sun 11:00 poor ❌ Limited

Sun 12:00 poor ❌ Limited

Sun 13:00 poor ❌ Limited

Sun 14:00 poor ❌ Limited

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 poor ❌ Limited

Mon 05:00 poor ❌ Limited

Mon 06:00 poor ❌ Limited

Mon 07:00 poor ❌ Limited

Mon 08:00 poor ❌ Limited

Mon 09:00 poor ❌ Limited

Mon 10:00 poor ❌ Limited

Mon 11:00 poor ❌ Limited

Mon 12:00 poor ❌ Limited

Mon 13:00 poor ❌ Limited

Mon 14:00 poor ❌ Limited

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 fair ⚠️ Fair

Mon 21:00 poor ❌ Limited

Mon 22:00 poor ❌ Limited

Mon 23:00 poor ❌ Limited

Tue 00:00 poor ❌ Limited

Tue 01:00 poor ❌ Limited

Tue 02:00 poor ❌ Limited

Tue 03:00 poor ❌ Limited

Tue 04:00 poor ❌ Limited

Tue 05:00 poor ❌ Limited

Tue 06:00 poor ❌ Limited

Tue 07:00 poor ❌ Limited

Tue 08:00 poor ❌ Limited

Tue 09:00 fair ⚠️ Fair

Tue 10:00 poor ❌ Limited

Tue 11:00 poor ❌ Limited

Tue 12:00 poor ❌ Limited

Tue 13:00 fair ⚠️ Fair

Tue 14:00 fair ⚠️ Fair

Tue 15:00 fair ⚠️ Fair

Tue 16:00 fair ⚠️ Fair

Tue 17:00 fair ⚠️ Fair

Tue 18:00 fair ⚠️ Fair

Tue 19:00 fair ⚠️ Fair

Tue 20:00 fair ⚠️ Fair

Tue 21:00 poor ❌ Limited

Tue 22:00 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 23:00	2.18 · high	9.33 · high	27.50 · good	poor
Sun 00:00	2.20 · high	8.96 · high	27.50 · good	poor
Sun 01:00	2.20 · high	8.48 · high	27.50 · good	poor
Sun 02:00	2.22 · high	8.30 · high	27.50 · good	poor
Sun 03:00	2.22 · high	8.22 · high	27.40 · good	poor
Sun 04:00	2.20 · high	8.05 · high	27.40 · good	poor
Sun 05:00	2.18 · high	8.22 · high	27.40 · good	poor
Sun 06:00	2.16 · high	8.19 · high	27.40 · good	poor
Sun 07:00	2.16 · high	7.93 · high	27.40 · good	poor
Sun 08:00	2.28 · high	9.20 · high	27.50 · good	poor
Sun 09:00	2.28 · high	9.67 · high	27.50 · good	poor
Sun 10:00	2.26 · high	9.32 · high	27.50 · good	poor
Sun 11:00	2.26 · high	9.21 · high	27.50 · good	poor
Sun 12:00	2.24 · high	9.18 · high	27.50 · good	poor
Sun 13:00	2.22 · high	9.26 · high	27.50 · good	poor
Sun 14:00	2.22 · high	8.75 · high	27.50 · good	poor
Sun 15:00	2.20 · high	7.95 · high	27.50 · good	poor
Sun 16:00	2.18 · high	7.24 · high	27.60 · good	poor
Sun 17:00	2.16 · high	7.67 · high	27.60 · good	poor
Sun 18:00	2.14 · high	8.00 · high	27.60 · good	poor
Sun 19:00	2.12 · high	7.57 · high	27.60 · good	poor
Sun 20:00	2.10 · high	7.38 · high	27.60 · good	poor
Sun 21:00	2.08 · high	7.50 · high	27.50 · good	poor
Sun 22:00	2.06 · high	7.84 · high	27.50 · good	poor
Sun 23:00	2.04 · high	7.82 · high	27.50 · good	poor
Mon 00:00	2.02 · high	7.96 · high	27.50 · good	poor
Mon 01:00	2.00 · high	7.71 · high	27.50 · good	poor
Mon 02:00	2.00 · high	6.90 · high	27.50 · good	poor
Mon 03:00	1.98 · high	6.74 · high	27.50 · good	poor
Mon 04:00	1.96 · high	6.70 · high	27.50 · good	poor
Mon 05:00	1.94 · high	6.19 · high	27.50 · good	poor
Mon 06:00	1.92 · high	6.21 · high	27.50 · good	poor
Mon 07:00	1.88 · high	6.34 · high	27.50 · good	poor
Mon 08:00	1.86 · high	6.69 · high	27.50 · good	poor
Mon 09:00	1.82 · high	6.93 · high	27.50 · good	poor
Mon 10:00	1.78 · high	6.43 · high	27.50 · good	poor
Mon 11:00	1.74 · high	6.61 · high	27.50 · good	poor
Mon 12:00	1.70 · high	6.60 · high	27.50 · good	poor
Mon 13:00	1.68 · high	6.66 · high	27.50 · good	poor
Mon 14:00	1.66 · high	6.67 · high	27.50 · good	poor
Mon 15:00	1.64 · high	6.52 · high	27.50 · good	poor
Mon 16:00	1.62 · high	6.44 · high	27.60 · good	poor
Mon 17:00	1.60 · high	6.20 · high	27.60 · good	poor
Mon 18:00	1.58 · high	5.70 · high	27.60 · good	poor
Mon 19:00	1.56 · high	5.65 · high	27.60 · good	poor
Mon 20:00	1.56 · high	5.45 · high	27.60 · good	fair
Mon 21:00	1.54 · high	5.51 · high	27.50 · good	poor
Mon 22:00	1.54 · high	6.01 · high	27.50 · good	poor
Mon 23:00	1.52 · high	6.43 · high	27.50 · good	poor
Tue 00:00	1.52 · high	6.45 · high	27.50 · good	poor
Tue 01:00	1.52 · high	6.08 · high	27.50 · good	poor
Tue 02:00	1.52 · high	5.46 · high	27.50 · good	poor
Tue 03:00	1.52 · high	5.27 · good	27.40 · good	poor
Tue 04:00	1.50 · high	5.48 · high	27.40 · good	poor
Tue 05:00	1.48 · high	5.75 · high	27.40 · good	poor
Tue 06:00	1.46 · high	5.96 · high	27.40 · good	poor
Tue 07:00	1.44 · high	6.04 · high	27.40 · good	poor
Tue 08:00	1.44 · high	6.13 · high	27.40 · good	poor
Tue 09:00	1.42 · high	6.01 · high	27.40 · good	fair
Tue 10:00	1.40 · high	5.96 · high	27.40 · good	poor
Tue 11:00	1.36 · high	6.07 · high	27.40 · good	poor
Tue 12:00	1.34 · high	5.98 · high	27.40 · good	poor
Tue 13:00	1.32 · high	5.57 · high	27.40 · good	fair
Tue 14:00	1.30 · high	5.31 · good	27.50 · good	fair
Tue 15:00	1.28 · high	4.78 · good	27.50 · good	fair
Tue 16:00	1.26 · high	4.51 · good	27.50 · good	fair
Tue 17:00	1.26 · high	4.62 · good	27.50 · good	fair
Tue 18:00	1.24 · high	4.85 · good	27.50 · good	fair
Tue 19:00	1.22 · high	4.96 · good	27.50 · good	fair
Tue 20:00	1.22 · high	4.82 · good	27.50 · good	fair
Tue 21:00	1.20 · high	4.82 · good	27.40 · good	poor
Tue 22:00	1.20 · high	4.96 · good	27.40 · good	poor