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 18:08

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

18:13

Water

27.3°C

Max air

26.2°C

Sky

Clear

16% 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 (55 hours)
Wind (55 hours)
Tide/current (55 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

Mon 20:00 – Thu 20:00 (-02)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.38 around Tue 15:00; 9 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 1.22m to 1.56m).

Wind is at or below 5.4m/s in 7/24 sampled hours (range 4.51 to 6.45m/s).

Tides range from -1.14m to 1.26m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview

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

Tue 23:00 poor ❌ Limited

Wed 00:00 poor ❌ Limited

Wed 01:00 poor ❌ Limited

Wed 02:00 poor ❌ Limited

Wed 03:00 poor ❌ Limited

Wed 04:00 poor ❌ Limited

Wed 05:00 poor ❌ Limited

Wed 06:00 poor ❌ Limited

Wed 07:00 poor ❌ Limited

Wed 08:00 poor ❌ Limited

Wed 09:00 poor ❌ Limited

Wed 10:00 poor ❌ Limited

Wed 11:00 poor ❌ Limited

Wed 12:00 fair ⚠️ Fair

Wed 13:00 poor ❌ Limited

Wed 14:00 poor ❌ Limited

Wed 15:00 poor ❌ Limited

Wed 16:00 poor ❌ Limited

Wed 17:00 poor ❌ Limited

Wed 18:00 poor ❌ Limited

Wed 19:00 poor ❌ Limited

Wed 20:00 poor ❌ Limited

Wed 21:00 poor ❌ Limited

Wed 22:00 poor ❌ Limited

Wed 23:00 poor ❌ Limited

Thu 00:00 poor ❌ Limited

Thu 01:00 poor ❌ Limited

Thu 02:00 poor ❌ Limited

Thu 03:00 poor ❌ Limited

Thu 04:00 poor ❌ Limited

Thu 05:00 poor ❌ Limited

Thu 06:00 poor ❌ Limited

Thu 07:00 poor ❌ Limited

Thu 08:00 poor ❌ Limited

Thu 09:00 poor ❌ Limited

Thu 10:00 poor ❌ Limited

Thu 11:00 poor ❌ Limited

Thu 12:00 poor ❌ Limited

Thu 13:00 poor ❌ Limited

Thu 14:00 poor ❌ Limited

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

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
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
Tue 23:00	1.20 · high	5.11 · good	27.40 · good	poor
Wed 00:00	1.20 · high	5.02 · good	27.30 · good	poor
Wed 01:00	1.20 · high	5.01 · good	27.30 · good	poor
Wed 02:00	1.18 · high	5.11 · good	27.30 · good	poor
Wed 03:00	1.18 · high	5.12 · good	27.30 · good	poor
Wed 04:00	1.18 · high	5.27 · good	27.30 · good	poor
Wed 05:00	1.18 · high	5.34 · good	27.30 · good	poor
Wed 06:00	1.18 · high	5.17 · good	27.30 · good	poor
Wed 07:00	1.20 · high	5.39 · good	27.30 · good	poor
Wed 08:00	1.20 · high	5.66 · high	27.30 · good	poor
Wed 09:00	1.22 · high	5.93 · high	27.30 · good	poor
Wed 10:00	1.24 · high	6.04 · high	27.30 · good	poor
Wed 11:00	1.26 · high	6.24 · high	27.30 · good	poor
Wed 12:00	1.28 · high	6.26 · high	27.30 · good	fair
Wed 13:00	1.32 · high	6.47 · high	27.30 · good	poor
Wed 14:00	1.34 · high	6.58 · high	27.30 · good	poor
Wed 15:00	1.38 · high	6.85 · high	27.40 · good	poor
Wed 16:00	1.42 · high	7.10 · high	27.40 · good	poor
Wed 17:00	1.46 · high	7.13 · high	27.40 · good	poor
Wed 18:00	1.50 · high	6.80 · high	27.40 · good	poor
Wed 19:00	1.52 · high	7.46 · high	27.40 · good	poor
Wed 20:00	1.56 · high	7.64 · high	27.30 · good	poor
Wed 21:00	1.58 · high	8.17 · high	27.30 · good	poor
Wed 22:00	1.62 · high	8.80 · high	27.30 · good	poor
Wed 23:00	1.66 · high	8.54 · high	27.30 · good	poor
Thu 00:00	1.70 · high	8.50 · high	27.30 · good	poor
Thu 01:00	1.72 · high	8.85 · high	27.30 · good	poor
Thu 02:00	1.74 · high	8.81 · high	27.30 · good	poor
Thu 03:00	1.76 · high	8.19 · high	27.30 · good	poor
Thu 04:00	1.76 · high	7.74 · high	27.30 · good	poor
Thu 05:00	1.76 · high	7.55 · high	27.30 · good	poor
Thu 06:00	1.76 · high	7.39 · high	27.30 · good	poor
Thu 07:00	1.76 · high	7.10 · high	27.30 · good	poor
Thu 08:00	1.78 · high	7.42 · high	27.30 · good	poor
Thu 09:00	1.78 · high	7.34 · high	27.30 · good	poor
Thu 10:00	1.78 · high	7.41 · high	27.30 · good	poor
Thu 11:00	1.80 · high	7.89 · high	27.30 · good	poor
Thu 12:00	1.80 · high	7.91 · high	27.30 · good	poor
Thu 13:00	1.82 · high	7.86 · high	27.30 · good	poor
Thu 14:00	1.82 · high	7.72 · high	27.30 · good	poor
Thu 15:00	1.84 · high	7.87 · high	27.30 · good	poor
Thu 16:00	1.86 · high	8.28 · high	27.30 · good	poor
Thu 17:00	1.86 · high	7.88 · high	27.30 · good	poor
Thu 18:00	1.88 · high	8.09 · high	27.30 · good	poor
Thu 19:00	1.90 · high	8.56 · high	27.30 · good	poor