SnorkelForecast.com

Mafia Island Snorkel Report Today

Tanzania · Updated Tue 04:14 (EAT) · Source: Snapshot

The skinny

Marginal Report Wed 07:06

Mafia Island looks marginal today. The least-bad daylight window is around Thu 18:00, but waves is limiting the forecast.

Score: 4.3/10

Best time: Thu 18:00

Main risk: Waves

Best morning signal: Wed 08:00 (Fair).

Best afternoon signal: Wed 18:00 (Fair). Peak afternoon wind is about 5.5 m/s.

Email me when it is good

Sunrise

06:35

Sunset

18:19

Water

25.8°C

Max air

27.1°C

Sky

Clear

25% 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

  • Thu 15:00 — Fair (0.43) · still limited by waves, tide/current
  • Wed 15:00 — Fair (0.43) · still limited by waves, tide/current
  • Wed 10:00 — Fair (0.42) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (47 hours)
  • Tide/current (47 hours)
  • Darkness (24 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

Wed 06:00, Thu 07:00, Thu 20:00

Nearby alternatives in Tanzania

Mnemba Atoll

238 km away

⚠️ Fair

Advanced forecast data

Viewing historical data

Thu 04:00 – Sun 04:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.29 around Thu 07:00; 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 0.94m to 1.34m).

Wind is at or below 5.4m/s in 17/24 sampled hours (range 3.48 to 6.14m/s).

Tides range from -0.36m to 1.38m; 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
Thu 04:00 1.34 · high 4.50 · good 26.40 · good poor
Thu 05:00 1.32 · high 5.32 · good 26.40 · good poor
Thu 06:00 1.30 · high 5.58 · high 26.40 · good poor
Thu 07:00 1.28 · high 6.02 · high 26.40 · good poor
Thu 08:00 1.26 · high 6.14 · high 26.40 · good poor
Thu 09:00 1.26 · high 5.75 · high 26.40 · good poor
Thu 10:00 1.26 · high 5.66 · high 26.50 · good poor
Thu 11:00 1.24 · high 5.68 · high 26.50 · good poor
Thu 12:00 1.24 · high 5.80 · high 26.50 · good poor
Thu 13:00 1.22 · high 5.40 · good 26.50 · good poor
Thu 14:00 1.18 · high 5.28 · good 26.50 · good poor
Thu 15:00 1.16 · high 4.53 · good 26.50 · good poor
Thu 16:00 1.14 · high 4.39 · good 26.50 · good poor
Thu 17:00 1.14 · high 4.92 · good 26.50 · good poor
Thu 18:00 1.12 · high 5.20 · good 26.50 · good poor
Thu 19:00 1.10 · high 5.01 · good 26.50 · good poor
Thu 20:00 1.06 · high 4.77 · good 26.50 · good poor
Thu 21:00 1.04 · high 4.30 · good 26.40 · good poor
Thu 22:00 1.02 · high 3.98 · good 26.40 · good poor
Thu 23:00 1.00 · high 4.01 · good 26.40 · good poor
Fri 00:00 0.98 · high 3.85 · good 26.40 · good poor
Fri 01:00 0.96 · high 3.58 · good 26.40 · good poor
Fri 02:00 0.96 · high 3.56 · good 26.40 · good poor
Fri 03:00 0.94 · high 3.48 · good 26.40 · good poor
Fri 04:00 0.94 · high 3.22 · good 26.40 · good poor
Fri 05:00 0.92 · high 3.59 · good 26.40 · good poor
Fri 06:00 0.92 · high 3.88 · good 26.40 · good poor
Fri 07:00 0.92 · high 3.83 · good 26.40 · good poor
Fri 08:00 0.90 · high 3.77 · good 26.50 · good poor
Fri 09:00 0.90 · high 3.61 · good 26.50 · good poor
Fri 10:00 0.90 · high 3.50 · good 26.60 · good fair
Fri 11:00 0.90 · high 3.61 · good 26.60 · good fair
Fri 12:00 0.90 · high 3.97 · good 26.60 · good fair
Fri 13:00 0.90 · high 4.01 · good 26.60 · good fair
Fri 14:00 0.88 · high 4.04 · good 26.60 · good fair
Fri 15:00 0.88 · high 3.72 · good 26.60 · good fair
Fri 16:00 0.88 · high 3.43 · good 26.60 · good poor
Fri 17:00 0.88 · high 3.36 · good 26.60 · good poor
Fri 18:00 0.88 · high 3.57 · good 26.60 · good poor
Fri 19:00 0.88 · high 3.37 · good 26.60 · good poor
Fri 20:00 0.88 · high 3.45 · good 26.60 · good poor
Fri 21:00 0.88 · high 3.55 · good 26.50 · good poor
Fri 22:00 0.88 · high 3.22 · good 26.50 · good poor
Fri 23:00 0.88 · high 3.08 · good 26.50 · good poor
Sat 00:00 0.88 · high 3.04 · good 26.50 · good poor
Sat 01:00 0.88 · high 3.11 · good 26.50 · good poor
Sat 02:00 0.88 · high 3.12 · good 26.50 · good poor
Sat 03:00 0.88 · high 2.94 · good 26.50 · good poor
Sat 04:00 0.88 · high 2.83 · good 26.50 · good poor
Sat 05:00 0.90 · high 3.19 · good 26.50 · good poor
Sat 06:00 0.90 · high 3.82 · good 26.50 · good poor
Sat 07:00 0.90 · high 3.86 · good 26.60 · good poor
Sat 08:00 0.88 · high 3.79 · good 26.60 · good poor
Sat 09:00 0.88 · high 4.22 · good 26.60 · good poor
Sat 10:00 0.88 · high 4.23 · good 26.70 · good poor
Sat 11:00 0.86 · high 4.28 · good 26.70 · good poor
Sat 12:00 0.86 · high 4.18 · good 26.70 · good poor
Sat 13:00 0.84 · high 3.94 · good 26.70 · good poor
Sat 14:00 0.84 · high 4.01 · good 26.70 · good poor
Sat 15:00 0.82 · high 3.32 · good 26.70 · good poor
Sat 16:00 0.82 · high 3.19 · good 26.70 · good poor
Sat 17:00 0.82 · high 3.26 · good 26.60 · good poor
Sat 18:00 0.82 · high 3.47 · good 26.60 · good poor
Sat 19:00 0.82 · high 3.68 · good 26.60 · good poor
Sat 20:00 0.82 · high 3.81 · good 26.60 · good poor
Sat 21:00 0.82 · high 3.62 · good 26.60 · good poor
Sat 22:00 0.82 · high 3.54 · good 26.60 · good poor
Sat 23:00 0.82 · high 3.25 · good 26.60 · good poor
Sun 00:00 0.82 · high 3.20 · good 26.60 · good poor
Sun 01:00 0.82 · high 3.27 · good 26.60 · good poor
Sun 02:00 0.82 · high 2.95 · good 26.60 · good poor
Sun 03:00 0.82 · high 2.72 · good 26.60 · good poor