SnorkelForecast.com

Fernando de Noronha Snorkel Report Today

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

The skinny

Marginal Report Tue 13:19

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

Score: 3.8/10

Best time: Tue 14:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Tue 14:00 (Fair). Peak afternoon wind is about 7.4 m/s.

Email me when it is good

Sunrise

06:18

Sunset

18:13

Water

27.3°C

Max air

26.5°C

Sky

Clear

9% 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

⚠️ fair conditions

Main blocker: Waves

Wednesday

⚠️ fair conditions

Main blocker: Waves

Thursday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Tue 16:00 — Fair (0.38) · still limited by waves, wind
  • Wed 16:00 — Fair (0.36) · still limited by waves, wind
  • Thu 18:00 — Fair (0.35) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (60 hours)
  • Wind (60 hours)
  • Tide/current (60 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

Tue 15:00 – Fri 15:00 (-02)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.38 around Tue 15:00; 7 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 1.18m to 1.34m).

Wind is at or below 5.4m/s in 17/24 sampled hours (range 4.51 to 6.58m/s).

Tides range from -1.15m to 1.35m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
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fair ⚠️ Fair
poor ❌ Limited
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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
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
Thu 20:00 1.92 · high 8.22 · high 27.30 · good poor
Thu 21:00 1.94 · high 8.10 · high 27.30 · good poor
Thu 22:00 1.96 · high 8.61 · high 27.30 · good poor
Thu 23:00 1.98 · high 8.55 · high 27.20 · good poor
Fri 00:00 2.00 · high 8.77 · high 27.20 · good poor
Fri 01:00 2.02 · high 8.70 · high 27.20 · good poor
Fri 02:00 2.04 · high 8.73 · high 27.20 · good poor
Fri 03:00 2.06 · high 8.41 · high 27.20 · good poor
Fri 04:00 2.08 · high 8.52 · high 27.20 · good poor
Fri 05:00 2.08 · high 8.50 · high 27.20 · good poor
Fri 06:00 2.10 · high 8.77 · high 27.20 · good poor
Fri 07:00 2.14 · high 8.90 · high 27.20 · good poor
Fri 08:00 2.20 · high 9.58 · high 27.20 · good poor
Fri 09:00 2.24 · high 9.76 · high 27.20 · good poor
Fri 10:00 2.28 · high 9.72 · high 27.20 · good poor
Fri 11:00 2.32 · high 10.30 · high 27.20 · good poor
Fri 12:00 2.36 · high 10.50 · high 27.20 · good poor
Fri 13:00 2.38 · high 10.25 · high 27.20 · good poor
Fri 14:00 2.38 · high 10.41 · high 27.20 · good poor