MARINE REPORT / 72 HOURS

Kos Snorkel Report Today

Greece · Updated Sat 16:18 (EEST) · Source: Snapshot

The skinny

Marginal Data updated Sat 16:18 (EEST)

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

Right now (forecast)

Fair · 3.6/10

Sat 16:00 (EEST)

Later today

Fair · 3.8/10

Sat 18:00 (EEST)

Next three days

Excellent · 7.4/10

Tue 15:00 (EEST)

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

Score: 3.8/10

Best time: Sat 18:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sat 18:00 (Fair). Peak afternoon wind is about 5.7 m/s.

Email me when it is good

Sunrise

07:19

Sunset

18:31

Water

24.6°C

Max air

16.5°C

Sky

Partly cloudy

51% cloud

Good model window in the next 72 hours

Next good model window: Sun 08:00–18:00 (38% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Saturday

⚠️ Fair conditions

Main blocker: Waves

Sunday

✅ Good conditions

Main blocker: Tide/current

Monday

✅ Good conditions

Main blocker: Tide/current

Best available hours

The next good model window starts at Sun 08:00 and lasts until 18:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (63 hours)
  • Waves (44 hours)
  • Darkness (39 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.

Nearby alternatives in Greece

Symi

58 km away

✅ Good

Rhodes

103 km away

✅ Good

Naxos

171 km away

✅ Good

Santorini

172 km away

✅ Good

Advanced forecast data

Viewing historical data

Sun 16:00 – Wed 16:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.71 around Sun 17:00; 11 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.

24/24 sampled hours stay at or below 0.36m (range 0.2m to 0.3m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.64 to 4.47m/s).

Tides range from -0.51m to -0.41m; 0 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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Sun 16:00 0.22 · good 1.40 · good 25.70 · good Good
Sun 17:00 0.20 · good 1.10 · good 25.70 · good Good
Sun 18:00 0.20 · good 1.72 · good 25.70 · good Good
Sun 19:00 0.20 · good 2.25 · good 25.70 · good Poor
Sun 20:00 0.20 · good 1.28 · good 25.60 · good Poor
Sun 21:00 0.22 · good 1.17 · good 25.60 · good Poor
Sun 22:00 0.24 · good 1.50 · good 25.60 · good Poor
Sun 23:00 0.24 · good 1.60 · good 25.60 · good Poor
Mon 00:00 0.26 · good 1.63 · good 25.60 · good Poor
Mon 01:00 0.28 · good 1.41 · good 25.60 · good Poor
Mon 02:00 0.28 · good 1.22 · good 25.60 · good Poor
Mon 03:00 0.30 · good 1.20 · good 25.60 · good Poor
Mon 04:00 0.30 · good 0.92 · good 25.60 · good Poor
Mon 05:00 0.30 · good 0.64 · good 25.50 · good Poor
Mon 06:00 0.30 · good 1.84 · good 25.50 · good Poor
Mon 07:00 0.30 · good 2.20 · good 25.50 · good Poor
Mon 08:00 0.30 · good 2.11 · good 25.50 · good Good
Mon 09:00 0.30 · good 2.47 · good 25.50 · good Good
Mon 10:00 0.28 · good 2.86 · good 25.60 · good Good
Mon 11:00 0.28 · good 3.34 · good 25.60 · good Good
Mon 12:00 0.26 · good 3.68 · good 25.70 · good Good
Mon 13:00 0.26 · good 4.10 · good 25.80 · good Good
Mon 14:00 0.24 · good 4.24 · good 25.80 · good Good
Mon 15:00 0.24 · good 4.47 · good 25.90 · good Good
Mon 16:00 0.26 · good 4.61 · good 25.90 · good Good
Mon 17:00 0.30 · good 4.60 · good 25.90 · good Good
Mon 18:00 0.32 · good 4.24 · good 25.80 · good Good
Mon 19:00 0.34 · good 3.89 · good 25.70 · good Poor
Mon 20:00 0.38 · high 3.42 · good 25.60 · good Poor
Mon 21:00 0.40 · high 3.24 · good 25.60 · good Poor
Mon 22:00 0.40 · high 2.88 · good 25.50 · good Poor
Mon 23:00 0.40 · high 2.61 · good 25.50 · good Poor
Tue 00:00 0.40 · high 2.64 · good 25.50 · good Poor
Tue 01:00 0.38 · high 2.46 · good 25.50 · good Poor
Tue 02:00 0.38 · high 2.39 · good 25.50 · good Poor
Tue 03:00 0.36 · good 2.42 · good 25.50 · good Poor
Tue 04:00 0.36 · good 2.41 · good 25.50 · good Poor
Tue 05:00 0.34 · good 2.55 · good 25.50 · good Poor
Tue 06:00 0.34 · good 2.97 · good 25.50 · good Poor
Tue 07:00 0.34 · good 2.97 · good 25.50 · good Poor
Tue 08:00 0.34 · good 2.97 · good 25.50 · good Good
Tue 09:00 0.34 · good 3.11 · good 25.50 · good Good
Tue 10:00 0.34 · good 3.54 · good 25.50 · good Good
Tue 11:00 0.36 · good 4.10 · good 25.50 · good Good
Tue 12:00 0.36 · good 4.25 · good 25.60 · good Good
Tue 13:00 0.38 · high 4.48 · good 25.60 · good Good
Tue 14:00 0.38 · high 4.56 · good 25.50 · good Good
Tue 15:00 0.40 · high 4.62 · good 25.50 · good Good
Tue 16:00 0.42 · high 4.62 · good 25.50 · good Good
Tue 17:00 0.44 · high 4.55 · good 25.50 · good Good
Tue 18:00 0.46 · high 4.11 · good 25.50 · good Good
Tue 19:00 0.46 · high 3.06 · good 25.50 · good Poor
Tue 20:00 0.48 · high 3.22 · good 25.50 · good Poor
Tue 21:00 0.48 · high 3.05 · good 25.50 · good Poor
Tue 22:00 0.46 · high 3.00 · good 25.50 · good Poor
Tue 23:00 0.44 · high 2.69 · good 25.50 · good Poor
Wed 00:00 0.42 · high 2.33 · good 25.40 · good Poor
Wed 01:00 0.42 · high 2.24 · good 25.40 · good Poor
Wed 02:00 0.40 · high 2.33 · good 25.40 · good Poor
Wed 03:00 0.40 · high 2.28 · good 25.40 · good Poor
Wed 04:00 0.38 · high 2.16 · good 25.40 · good Poor
Wed 05:00 0.38 · high 1.98 · good 25.40 · good Poor
Wed 06:00 0.36 · good 2.27 · good 25.40 · good Poor
Wed 07:00 0.34 · good 2.26 · good 25.40 · good Poor
Wed 08:00 0.34 · good 1.98 · good 25.40 · good Good
Wed 09:00 0.32 · good 1.92 · good 25.40 · good Good
Wed 10:00 0.32 · good 2.00 · good 25.40 · good Good
Wed 11:00 0.30 · good 2.22 · good 25.50 · good Good
Wed 12:00 0.30 · good 1.98 · good 25.50 · good Good
Wed 13:00 0.28 · good 2.30 · good 25.50 · good Good
Wed 14:00 0.24 · good 2.72 · good 25.60 · good Good
Wed 15:00 0.24 · good 3.02 · good 25.60 · good Good