SnorkelForecast.com

Fernando de Noronha Snorkel Report Today

Brazil · Updated Tue 04:14 (-02) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Wed 18:10

Fernando de Noronha looks marginal today. The least-bad daylight window is around Thu 16:00, but waves is limiting the forecast.

Score: 3.5/10

Best time: Thu 16:00

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

27.4°C

Max air

26.5°C

Sky

Partly cloudy

38% 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

❌ poor conditions

Main blocker: Waves

Thursday

⚠️ fair conditions

Main blocker: Waves

Friday

❌ poor conditions

Main blocker: Waves

Best available hours

  • Thu 18:00 — Fair (0.35) · still limited by waves, wind
  • Thu 17:00 — Fair (0.35) · still limited by waves, wind
  • Thu 15:00 — Poor (0.35) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (31 hours)
  • Wind (31 hours)
  • Tide/current (31 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

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 0.27 around Tue 17:00; 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 2.3m to 2.62m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 30.7 to 37.8m/s).

Tides range from -0.86m to 0.91m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
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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
Mon 20:00 2.30 · high 32.00 · high 28.20 · good poor
Mon 21:00 2.30 · high 31.40 · high 28.20 · good poor
Mon 22:00 2.30 · high 31.20 · high 28.20 · good poor
Mon 23:00 2.32 · high 31.80 · high 28.10 · good poor
Tue 00:00 2.32 · high 33.90 · high 28.10 · good poor
Tue 01:00 2.34 · high 35.10 · high 28.10 · good poor
Tue 02:00 2.36 · high 35.90 · high 28.10 · good poor
Tue 03:00 2.38 · high 34.20 · high 28.10 · good poor
Tue 04:00 2.40 · high 35.50 · high 28.10 · good poor
Tue 05:00 2.42 · high 34.50 · high 28.10 · good poor
Tue 06:00 2.44 · high 34.30 · high 28.10 · good poor
Tue 07:00 2.46 · high 35.80 · high 28.10 · good poor
Tue 08:00 2.46 · high 33.60 · high 28.10 · good poor
Tue 09:00 2.48 · high 30.70 · high 28.10 · good poor
Tue 10:00 2.50 · high 32.40 · high 28.10 · good poor
Tue 11:00 2.52 · high 37.80 · high 28.10 · good poor
Tue 12:00 2.46 · high 32.80 · high 28.10 · good poor
Tue 13:00 2.48 · high 32.50 · high 28.10 · good poor
Tue 14:00 2.52 · high 32.10 · high 28.10 · good poor
Tue 15:00 2.54 · high 35.40 · high 28.20 · good poor
Tue 16:00 2.56 · high 34.70 · high 28.20 · good poor
Tue 17:00 2.58 · high 34.70 · high 28.20 · good poor
Tue 18:00 2.60 · high 34.60 · high 28.20 · good poor
Tue 19:00 2.62 · high 35.20 · high 28.20 · good poor
Tue 20:00 2.64 · high 34.80 · high 28.20 · good poor
Tue 21:00 2.66 · high 34.80 · high 28.20 · good poor
Tue 22:00 2.68 · high 35.60 · high 28.10 · good poor
Tue 23:00 2.68 · high 35.10 · high 28.10 · good poor
Wed 00:00 2.70 · high 35.20 · high 28.10 · good poor
Wed 01:00 2.68 · high 36.10 · high 28.10 · good poor
Wed 02:00 2.66 · high 35.90 · high 28.10 · good poor
Wed 03:00 2.64 · high 35.90 · high 28.10 · good poor
Wed 04:00 2.62 · high 34.80 · high 28.10 · good poor
Wed 05:00 2.58 · high 33.80 · high 28.10 · good poor
Wed 06:00 2.56 · high 33.80 · high 28.10 · good poor
Wed 07:00 2.54 · high 32.80 · high 28.10 · good poor
Wed 08:00 2.52 · high 32.30 · high 28.10 · good poor
Wed 09:00 2.50 · high 33.40 · high 28.10 · good poor
Wed 10:00 2.52 · high 34.90 · high 28.10 · good poor
Wed 11:00 2.52 · high 35.30 · high 28.10 · good poor
Wed 12:00 2.54 · high 35.40 · high 28.10 · good poor
Wed 13:00 2.54 · high 32.80 · high 28.10 · good poor
Wed 14:00 2.56 · high 35.30 · high 28.10 · good poor
Wed 15:00 2.56 · high 34.20 · high 28.10 · good poor
Wed 16:00 2.56 · high 34.90 · high 28.10 · good poor
Wed 17:00 2.58 · high 35.20 · high 28.10 · good poor
Wed 18:00 2.58 · high 37.40 · high 28.10 · good poor
Wed 19:00 2.58 · high 33.20 · high 28.10 · good poor
Wed 20:00 2.60 · high 38.00 · high 28.10 · good poor
Wed 21:00 2.60 · high 36.10 · high 28.10 · good poor
Wed 22:00 2.64 · high 35.30 · high 28.10 · good poor
Wed 23:00 2.66 · high 37.40 · high 28.10 · good poor
Thu 00:00 2.70 · high 35.70 · high 28.10 · good poor
Thu 01:00 2.72 · high 35.20 · high 28.10 · good poor
Thu 02:00 2.76 · high 36.10 · high 28.10 · good poor
Thu 03:00 2.78 · high 33.80 · high 28.00 · good poor
Thu 04:00 2.78 · high 35.80 · high 28.00 · good poor
Thu 05:00 2.80 · high 35.20 · high 28.00 · good poor
Thu 06:00 2.80 · high 35.90 · high 28.00 · good poor
Thu 07:00 2.80 · high 35.90 · high 28.00 · good poor
Thu 08:00 2.82 · high 36.00 · high 28.00 · good poor
Thu 09:00 2.82 · high 35.40 · high 28.00 · good poor
Thu 10:00 2.80 · high 35.10 · high 28.00 · good poor
Thu 11:00 2.80 · high 35.10 · high 28.00 · good poor
Thu 12:00 2.78 · high 33.40 · high 28.00 · good poor
Thu 13:00 2.76 · high 31.40 · high 28.00 · good poor
Thu 14:00 2.72 · high 30.00 · high 28.10 · good poor
Thu 15:00 2.70 · high 29.20 · high 28.10 · good poor
Thu 16:00 2.66 · high 29.00 · high 28.10 · good poor
Thu 17:00 2.62 · high 28.50 · high 28.10 · good poor
Thu 18:00 2.58 · high 28.40 · high 28.10 · good poor
Thu 19:00 2.56 · high 28.40 · high 28.10 · good poor