MARINE REPORT / 72 HOURS

Mnemba Atoll Snorkel Report Today

Tanzania · Updated Sun 18:01 (EAT) · Source: Snapshot

The skinny

Poor Data updated Sun 18:01 (EAT)

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

Right now (forecast)

Poor · 2.9/10

Sun 18:00 (EAT)

Later today

No fresh data for this period.

Next three days

Fair · 4.0/10

Tue 08:00 (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

06:03

Sunset

18:15

Water

27.3°C

Max air

26.5°C

Sky

Partly cloudy

55% 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

Sunday

❌ Poor conditions

Main blocker: Waves

Monday

⚠️ Fair conditions

Main blocker: Waves

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Tue 08:00: Fair (0.40) · still limited by waves, tide/current
  • Tue 11:00: Fair (0.39) · still limited by waves, tide/current
  • Tue 09:00: Fair (0.39) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (71 hours)
  • Tide/current (71 hours)
  • Darkness (36 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: Mon 04:00

Mon 04:00, Mon 17:00, Tue 05:00, Tue 17:00, Wed 05:00

Nearby alternatives in Tanzania

Mafia Island

238 km away

❌ Poor

Advanced forecast data

Viewing current forecast

Sun 18:00 – Wed 18:00 (EAT)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.36 around Mon 17:00; 1 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 0.92m to 1.22m).

Wind is at or below 5.4m/s in 20/24 sampled hours (range 2.69 to 5.66m/s).

Tides range from -1.23m to 2.37m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Poor ❌ Limited
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Poor ❌ Limited
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Poor ❌ Limited
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Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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
Sun 19:00 0.92 · high 5.02 · good 27.30 · good Poor
Sun 20:00 0.92 · high 4.67 · good 27.30 · good Poor
Sun 21:00 0.94 · high 4.75 · good 27.20 · good Poor
Sun 22:00 0.94 · high 4.44 · good 27.20 · good Poor
Sun 23:00 0.94 · high 4.19 · good 27.20 · good Poor
Mon 00:00 0.94 · high 3.56 · good 27.20 · good Poor
Mon 01:00 0.94 · high 3.43 · good 27.20 · good Poor
Mon 02:00 0.92 · high 3.15 · good 27.20 · good Poor
Mon 03:00 0.92 · high 2.98 · good 27.20 · good Poor
Mon 04:00 0.92 · high 2.69 · good 27.20 · good Poor
Mon 05:00 0.94 · high 2.97 · good 27.20 · good Poor
Mon 06:00 0.94 · high 2.77 · good 27.20 · good Poor
Mon 07:00 0.96 · high 3.05 · good 27.20 · good Poor
Mon 08:00 0.96 · high 3.96 · good 27.20 · good Poor
Mon 09:00 0.98 · high 4.35 · good 27.20 · good Poor
Mon 10:00 1.00 · high 4.21 · good 27.20 · good Poor
Mon 11:00 1.02 · high 4.70 · good 27.30 · good Poor
Mon 12:00 1.04 · high 4.91 · good 27.30 · good Poor
Mon 13:00 1.06 · high 5.05 · good 27.40 · good Poor
Mon 14:00 1.10 · high 5.21 · good 27.50 · good Poor
Mon 15:00 1.12 · high 5.41 · high 27.50 · good Poor
Mon 16:00 1.16 · high 5.51 · high 27.50 · good Poor
Mon 17:00 1.18 · high 5.57 · high 27.40 · good Fair
Mon 18:00 1.22 · high 5.66 · high 27.40 · good Poor
Mon 19:00 1.24 · high 4.39 · good 27.30 · good Poor
Mon 20:00 1.26 · high 3.84 · good 27.30 · good Poor
Mon 21:00 1.28 · high 3.85 · good 27.20 · good Poor
Mon 22:00 1.28 · high 4.30 · good 27.20 · good Poor
Mon 23:00 1.30 · high 4.01 · good 27.20 · good Poor
Tue 00:00 1.30 · high 3.42 · good 27.20 · good Poor
Tue 01:00 1.30 · high 2.47 · good 27.20 · good Poor
Tue 02:00 1.32 · high 2.67 · good 27.20 · good Poor
Tue 03:00 1.32 · high 2.72 · good 27.20 · good Poor
Tue 04:00 1.32 · high 1.86 · good 27.20 · good Poor
Tue 05:00 1.32 · high 2.99 · good 27.20 · good Poor
Tue 06:00 1.32 · high 1.87 · good 27.10 · good Poor
Tue 07:00 1.32 · high 2.82 · good 27.10 · good Fair
Tue 08:00 1.34 · high 2.52 · good 27.20 · good Fair
Tue 09:00 1.34 · high 2.80 · good 27.20 · good Fair
Tue 10:00 1.34 · high 2.71 · good 27.20 · good Fair
Tue 11:00 1.34 · high 3.11 · good 27.30 · good Fair
Tue 12:00 1.34 · high 3.76 · good 27.40 · good Fair
Tue 13:00 1.34 · high 4.61 · good 27.50 · good Fair
Tue 14:00 1.36 · high 5.63 · high 27.50 · good Poor
Tue 15:00 1.36 · high 6.08 · high 27.60 · good Fair
Tue 16:00 1.38 · high 6.44 · high 27.60 · good Poor
Tue 17:00 1.38 · high 6.54 · high 27.50 · good Poor
Tue 18:00 1.40 · high 6.05 · high 27.50 · good Fair
Tue 19:00 1.40 · high 6.11 · high 27.40 · good Poor
Tue 20:00 1.38 · high 5.84 · high 27.30 · good Poor
Tue 21:00 1.38 · high 5.52 · high 27.30 · good Poor
Tue 22:00 1.36 · high 4.92 · good 27.30 · good Poor
Tue 23:00 1.34 · high 4.37 · good 27.20 · good Poor
Wed 00:00 1.32 · high 4.13 · good 27.20 · good Poor
Wed 01:00 1.30 · high 3.00 · good 27.20 · good Poor
Wed 02:00 1.30 · high 2.74 · good 27.20 · good Poor
Wed 03:00 1.28 · high 3.62 · good 27.20 · good Poor
Wed 04:00 1.28 · high 3.87 · good 27.20 · good Poor
Wed 05:00 1.30 · high 3.07 · good 27.20 · good Poor
Wed 06:00 1.30 · high 2.90 · good 27.20 · good Poor
Wed 07:00 1.32 · high 3.21 · good 27.20 · good Poor
Wed 08:00 1.34 · high 3.64 · good 27.20 · good Fair
Wed 09:00 1.36 · high 3.91 · good 27.20 · good Fair
Wed 10:00 1.38 · high 3.74 · good 27.30 · good Poor
Wed 11:00 1.40 · high 4.70 · good 27.30 · good Fair
Wed 12:00 1.42 · high 5.03 · good 27.40 · good Fair
Wed 13:00 1.42 · high 6.18 · high 27.40 · good Poor
Wed 14:00 1.40 · high 6.41 · high 27.50 · good Poor
Wed 15:00 1.40 · high 6.58 · high 27.50 · good Poor
Wed 16:00 1.42 · high 6.55 · high 27.50 · good Poor
Wed 17:00 1.42 · high 6.43 · high 27.40 · good Poor