MARINE REPORT / 72 HOURS

Kos Snorkel Report Today

Greece · Updated Sat 13:08 (EEST) · Source: Snapshot

The skinny

Marginal Data updated Sat 13:08 (EEST)

Kos looks marginal today. The least-bad daylight window is around Sat 14:00, but waves is limiting the forecast.

Right now (forecast)

Fair · 4.6/10

Sat 13:00 (EEST)

Later today

Fair · 3.8/10

Sat 14:00 (EEST)

Next three days

Good · 7.0/10

Tue 12:00 (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 14:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sat 14:00 (Fair). Peak afternoon wind is about 5.9 m/s.

Email me when it is good

Sunrise

07:19

Sunset

18:31

Water

24.7°C

Max air

16.6°C

Sky

Cloudy

97% cloud

Good model window in the next 72 hours

Next good model window: Sun 08:00–18:00 (32% 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: Waves

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 (69 hours)
  • Waves (65 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

Wed 13:00 – Sat 13:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.74 around Thu 11:00; 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 0.14m to 0.28m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.36 to 3.67m/s).

Tides range from -0.52m to -0.39m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
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
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
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
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
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
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
Wed 16:00 0.24 · good 3.28 · good 25.60 · good Good
Wed 17:00 0.22 · good 3.40 · good 25.60 · good Good
Wed 18:00 0.22 · good 3.67 · good 25.60 · good Good
Wed 19:00 0.22 · good 2.78 · good 25.60 · good Poor
Wed 20:00 0.20 · good 2.15 · good 25.60 · good Poor
Wed 21:00 0.20 · good 1.92 · good 25.60 · good Poor
Wed 22:00 0.20 · good 1.81 · good 25.60 · good Poor
Wed 23:00 0.18 · good 1.60 · good 25.60 · good Poor
Thu 00:00 0.18 · good 1.40 · good 25.60 · good Poor
Thu 01:00 0.18 · good 1.36 · good 25.60 · good Poor
Thu 02:00 0.18 · good 1.57 · good 25.60 · good Poor
Thu 03:00 0.20 · good 1.79 · good 25.60 · good Poor
Thu 04:00 0.20 · good 1.88 · good 25.60 · good Poor
Thu 05:00 0.18 · good 1.80 · good 25.60 · good Poor
Thu 06:00 0.18 · good 1.84 · good 25.60 · good Poor
Thu 07:00 0.18 · good 1.68 · good 25.60 · good Poor
Thu 08:00 0.16 · good 1.53 · good 25.60 · good Excellent
Thu 09:00 0.16 · good 1.41 · good 25.60 · good Excellent
Thu 10:00 0.16 · good 1.39 · good 25.60 · good Excellent
Thu 11:00 0.14 · good 1.53 · good 25.60 · good Excellent
Thu 12:00 0.14 · good 1.51 · good 25.70 · good Excellent
Thu 13:00 0.14 · good 1.81 · good 25.70 · good Good
Thu 14:00 0.12 · good 2.06 · good 25.80 · good Good
Thu 15:00 0.12 · good 1.98 · good 25.80 · good Good
Thu 16:00 0.12 · good 2.10 · good 25.80 · good Excellent
Thu 17:00 0.12 · good 2.51 · good 25.80 · good Excellent
Thu 18:00 0.10 · good 2.79 · good 25.70 · good Excellent
Thu 19:00 0.10 · good 2.37 · good 25.70 · good Poor
Thu 20:00 0.12 · good 1.92 · good 25.70 · good Poor
Thu 21:00 0.12 · good 1.72 · good 25.70 · good Poor
Thu 22:00 0.12 · good 1.56 · good 25.70 · good Poor
Thu 23:00 0.12 · good 1.44 · good 25.70 · good Poor
Fri 00:00 0.12 · good 1.30 · good 25.60 · good Poor
Fri 01:00 0.10 · good 1.14 · good 25.60 · good Poor
Fri 02:00 0.10 · good 1.13 · good 25.60 · good Poor
Fri 03:00 0.08 · good 1.35 · good 25.60 · good Poor
Fri 04:00 0.08 · good 1.35 · good 25.60 · good Poor
Fri 05:00 0.08 · good 1.36 · good 25.60 · good Poor
Fri 06:00 0.08 · good 0.92 · good 25.60 · good Poor
Fri 07:00 0.08 · good 1.14 · good 25.60 · good Poor
Fri 08:00 0.06 · good 1.22 · good 25.60 · good Excellent
Fri 09:00 0.06 · good 1.06 · good 25.60 · good Excellent
Fri 10:00 0.06 · good 1.00 · good 25.60 · good Excellent
Fri 11:00 0.06 · good 0.94 · good 25.60 · good Excellent
Fri 12:00 0.06 · good 1.00 · good 25.70 · good Excellent
Fri 13:00 0.06 · good 1.58 · good 25.70 · good Excellent
Fri 14:00 0.06 · good 2.62 · good 25.70 · good Excellent
Fri 15:00 0.06 · good 4.08 · good 25.70 · good Excellent
Fri 16:00 0.10 · good 4.44 · good 25.70 · good Excellent
Fri 17:00 0.14 · good 4.41 · good 25.70 · good Good
Fri 18:00 0.18 · good 3.75 · good 25.70 · good Good
Fri 19:00 0.20 · good 3.03 · good 25.70 · good Poor
Fri 20:00 0.22 · good 2.21 · good 25.60 · good Poor
Fri 21:00 0.22 · good 1.91 · good 25.60 · good Poor
Fri 22:00 0.20 · good 1.53 · good 25.60 · good Poor
Fri 23:00 0.20 · good 1.32 · good 25.60 · good Poor
Sat 00:00 0.18 · good 1.12 · good 25.60 · good Poor
Sat 01:00 0.18 · good 1.49 · good 25.60 · good Poor
Sat 02:00 0.16 · good 1.49 · good 25.60 · good Poor
Sat 03:00 0.16 · good 1.12 · good 25.60 · good Poor
Sat 04:00 0.16 · good 0.72 · good 25.60 · good Poor
Sat 05:00 0.14 · good 1.80 · good 25.50 · good Poor
Sat 06:00 0.14 · good 1.58 · good 25.50 · good Poor
Sat 07:00 0.14 · good 1.44 · good 25.50 · good Poor
Sat 08:00 0.14 · good 1.34 · good 25.50 · good Excellent
Sat 09:00 0.14 · good 1.44 · good 25.50 · good Excellent
Sat 10:00 0.14 · good 1.44 · good 25.50 · good Excellent
Sat 11:00 0.14 · good 0.71 · good 25.60 · good Excellent
Sat 12:00 0.14 · good 0.57 · good 25.60 · good Excellent