SnorkelForecast.com

Fernando de Noronha Snorkel Report Today

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

The skinny

Marginal Report Wed 01:03

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

Best morning signal: Wed 11:00 (Poor).

Best afternoon signal: Wed 14:00 (Fair). Peak afternoon wind is about 7.9 m/s.

Email me when it is good

Sunrise

06:18

Sunset

18:14

Water

27.2°C

Max air

26.5°C

Sky

Clear

18% 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

Wednesday

⚠️ fair conditions

Main blocker: Waves

Thursday

⚠️ fair conditions

Main blocker: Waves

Friday

❌ poor 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 (48 hours)
  • Wind (48 hours)
  • Tide/current (48 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

Fri 03:00 – Mon 03:00 (-02)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.36 around Fri 09:00; 2 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 2.28m to 2.38m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 7.58 to 8.97m/s).

Tides range from -0.63m to 0.71m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
poor ❌ Limited
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fair ⚠️ Fair
fair ⚠️ Fair
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
Fri 03:00 2.34 · high 8.37 · high 27.60 · good poor
Fri 04:00 2.34 · high 8.03 · high 27.60 · good poor
Fri 05:00 2.36 · high 8.28 · high 27.60 · good poor
Fri 06:00 2.36 · high 8.44 · high 27.60 · good poor
Fri 07:00 2.36 · high 8.47 · high 27.60 · good poor
Fri 08:00 2.38 · high 8.26 · high 27.60 · good poor
Fri 09:00 2.38 · high 8.22 · high 27.60 · good poor
Fri 10:00 2.36 · high 7.67 · high 27.60 · good fair
Fri 11:00 2.36 · high 7.58 · high 27.60 · good fair
Fri 12:00 2.34 · high 8.13 · high 27.60 · good poor
Fri 13:00 2.34 · high 7.99 · high 27.60 · good poor
Fri 14:00 2.32 · high 8.64 · high 27.60 · good poor
Fri 15:00 2.32 · high 8.68 · high 27.60 · good poor
Fri 16:00 2.32 · high 8.52 · high 27.70 · good poor
Fri 17:00 2.32 · high 8.38 · high 27.70 · good poor
Fri 18:00 2.32 · high 8.08 · high 27.70 · good poor
Fri 19:00 2.32 · high 8.07 · high 27.70 · good poor
Fri 20:00 2.30 · high 7.84 · high 27.70 · good poor
Fri 21:00 2.30 · high 7.81 · high 27.60 · good poor
Fri 22:00 2.30 · high 8.24 · high 27.60 · good poor
Fri 23:00 2.28 · high 8.35 · high 27.60 · good poor
Sat 00:00 2.28 · high 8.47 · high 27.60 · good poor
Sat 01:00 2.28 · high 8.97 · high 27.60 · good poor
Sat 02:00 2.28 · high 8.78 · high 27.60 · good poor
Sat 03:00 2.28 · high 8.99 · high 27.50 · good poor
Sat 04:00 2.26 · high 9.20 · high 27.50 · good poor
Sat 05:00 2.26 · high 9.20 · high 27.50 · good poor
Sat 06:00 2.24 · high 9.17 · high 27.50 · good poor
Sat 07:00 2.22 · high 8.43 · high 27.50 · good poor
Sat 08:00 2.22 · high 7.88 · high 27.50 · good poor
Sat 09:00 2.20 · high 7.80 · high 27.50 · good fair
Sat 10:00 2.20 · high 7.71 · high 27.50 · good poor
Sat 11:00 2.18 · high 7.91 · high 27.50 · good poor
Sat 12:00 2.18 · high 8.08 · high 27.50 · good poor
Sat 13:00 2.16 · high 8.01 · high 27.50 · good poor
Sat 14:00 2.16 · high 8.03 · high 27.50 · good poor
Sat 15:00 2.14 · high 7.95 · high 27.60 · good poor
Sat 16:00 2.14 · high 7.78 · high 27.60 · good poor
Sat 17:00 2.12 · high 8.04 · high 27.60 · good poor
Sat 18:00 2.12 · high 8.07 · high 27.60 · good poor
Sat 19:00 2.12 · high 8.12 · high 27.60 · good poor
Sat 20:00 2.14 · high 8.07 · high 27.60 · good poor
Sat 21:00 2.14 · high 8.89 · high 27.50 · good poor
Sat 22:00 2.16 · high 9.29 · high 27.50 · good poor
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