MARINE REPORT / 72 HOURS

Mnemba Atoll Snorkel Report Today

Tanzania · Updated Sat 20:20 (EAT) · Source: Snapshot

The skinny

Poor Data updated Sat 20:20 (EAT)

Mnemba Atoll has no good model window later today. Check the three-day outlook and official beach advisories.

Right now (forecast)

Poor · 0.0/10

Sat 21:00 (EAT)

Later today

No fresh data for this period.

Next three days

Fair · 4.6/10

Tue 06:00 (EAT)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 0.0/10

Best time: -

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:00

Sunset

18:15

Water

27.1°C

Max air

26.3°C

Sky

Cloudy

91% cloud

No good model 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

Saturday

❌ Poor conditions

Main blocker: Waves

Sunday

❌ Poor conditions

Main blocker: Waves

Monday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Tue 06:00: Fair (0.46) · still limited by waves, tide/current
  • Mon 15:00: Fair (0.44) · still limited by waves, tide/current
  • Mon 16:00: Fair (0.43) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (70 hours)
  • Tide/current (70 hours)
  • Darkness (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: Sun 07:00

Sun 07:00, Sun 20:00, Mon 23:00, Tue 11:00

Nearby alternatives in Tanzania

Mafia Island

238 km away

❌ Poor

Advanced forecast data

Viewing historical data

Sat 21:00 – Tue 21:00 (EAT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.39 around Sun 07:00; 5 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 1.08m to 1.24m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.6 to 5.19m/s).

Tides range from -0.13m to 1.18m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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Fair ⚠️ Fair
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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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Sat 21:00 1.20 · high 4.90 · good 27.20 · good Poor
Sat 22:00 1.20 · high 4.86 · good 27.20 · good Poor
Sat 23:00 1.18 · high 4.67 · good 27.20 · good Poor
Sun 00:00 1.18 · high 4.60 · good 27.10 · good Poor
Sun 01:00 1.18 · high 4.18 · good 27.10 · good Poor
Sun 02:00 1.16 · high 4.03 · good 27.10 · good Poor
Sun 03:00 1.16 · high 4.03 · good 27.10 · good Poor
Sun 04:00 1.16 · high 4.22 · good 27.10 · good Poor
Sun 05:00 1.14 · high 4.23 · good 27.00 · good Poor
Sun 06:00 1.14 · high 3.79 · good 27.00 · good Poor
Sun 07:00 1.14 · high 3.98 · good 27.00 · good Fair
Sun 08:00 1.14 · high 3.53 · good 27.00 · good Fair
Sun 09:00 1.14 · high 2.83 · good 27.00 · good Poor
Sun 10:00 1.14 · high 1.60 · good 27.00 · good Poor
Sun 11:00 1.14 · high 2.57 · good 27.10 · good Fair
Sun 12:00 1.14 · high 4.58 · good 27.10 · good Fair
Sun 13:00 1.14 · high 4.87 · good 27.20 · good Poor
Sun 14:00 1.08 · high 5.13 · good 27.40 · good Poor
Sun 15:00 1.10 · high 4.33 · good 27.40 · good Fair
Sun 16:00 1.12 · high 4.84 · good 27.40 · good Poor
Sun 17:00 1.14 · high 5.15 · good 27.40 · good Poor
Sun 18:00 1.16 · high 5.06 · good 27.30 · good Poor
Sun 19:00 1.20 · high 4.81 · good 27.20 · good Poor
Sun 20:00 1.24 · high 5.19 · good 27.20 · good Poor
Sun 21:00 1.30 · high 5.41 · high 27.10 · good Poor
Sun 22:00 1.34 · high 5.42 · high 27.10 · good Poor
Sun 23:00 1.36 · high 5.10 · good 27.10 · good Poor
Mon 00:00 1.40 · high 5.12 · good 27.00 · good Poor
Mon 01:00 1.42 · high 4.60 · good 27.00 · good Poor
Mon 02:00 1.42 · high 3.89 · good 27.00 · good Poor
Mon 03:00 1.44 · high 3.72 · good 27.00 · good Poor
Mon 04:00 1.44 · high 3.47 · good 27.00 · good Poor
Mon 05:00 1.42 · high 3.48 · good 27.00 · good Poor
Mon 06:00 1.42 · high 2.20 · good 27.00 · good Poor
Mon 07:00 1.40 · high 3.65 · good 27.00 · good Fair
Mon 08:00 1.40 · high 3.09 · good 27.00 · good Fair
Mon 09:00 1.38 · high 4.73 · good 27.00 · good Poor
Mon 10:00 1.36 · high 5.40 · good 27.00 · good Poor
Mon 11:00 1.36 · high 5.38 · good 27.00 · good Poor
Mon 12:00 1.34 · high 3.30 · good 27.10 · good Poor
Mon 13:00 1.34 · high 5.42 · high 27.10 · good Poor
Mon 14:00 1.28 · high 6.23 · high 27.10 · good Poor
Mon 15:00 1.26 · high 4.42 · good 27.30 · good Poor
Mon 16:00 1.26 · high 5.27 · good 27.30 · good Poor
Mon 17:00 1.28 · high 5.86 · high 27.20 · good Poor
Mon 18:00 1.28 · high 5.15 · good 27.20 · good Poor
Mon 19:00 1.26 · high 5.54 · high 27.10 · good Poor
Mon 20:00 1.22 · high 5.10 · good 27.10 · good Poor
Mon 21:00 1.30 · high 5.29 · good 27.10 · good Poor
Mon 22:00 1.28 · high 5.30 · good 27.10 · good Poor
Mon 23:00 1.26 · high 4.54 · good 27.00 · good Poor
Tue 00:00 1.24 · high 4.15 · good 27.00 · good Poor
Tue 01:00 1.22 · high 3.61 · good 27.00 · good Poor
Tue 02:00 1.22 · high 3.37 · good 27.00 · good Poor
Tue 03:00 1.20 · high 3.27 · good 27.00 · good Poor
Tue 04:00 1.18 · high 2.17 · good 27.00 · good Poor
Tue 05:00 1.18 · high 2.94 · good 27.00 · good Poor
Tue 06:00 1.16 · high 2.75 · good 27.00 · good Poor
Tue 07:00 1.16 · high 3.24 · good 27.00 · good Fair
Tue 08:00 1.16 · high 3.73 · good 27.00 · good Poor
Tue 09:00 1.16 · high 4.29 · good 27.00 · good Poor
Tue 10:00 1.16 · high 5.13 · good 27.10 · good Poor
Tue 11:00 1.18 · high 5.41 · high 27.20 · good Poor
Tue 12:00 1.18 · high 3.92 · good 27.20 · good Poor
Tue 13:00 1.18 · high 4.70 · good 27.30 · good Poor
Tue 14:00 1.18 · high 6.88 · high 27.30 · good Poor
Tue 15:00 1.18 · high 7.18 · high 27.30 · good Poor
Tue 16:00 1.20 · high 7.20 · high 27.30 · good Poor
Tue 17:00 1.20 · high 7.25 · high 27.30 · good Poor
Tue 18:00 1.22 · high 6.74 · high 27.30 · good Poor
Tue 19:00 1.24 · high 6.04 · high 27.20 · good Poor
Tue 20:00 1.38 · high 6.01 · high 27.20 · good Poor