SnorkelForecast.com

Kos Snorkel Report Today

Greece · Updated Tue 04:15 (EEST) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Thu 02:31

Kos has a usable snorkeling window around Thu 07:00. The main thing to watch is waves.

Score: 7.9/10

Best time: Thu 07:00

Main risk: Waves

Best morning signal: Thu 07:00 (Excellent).

Best afternoon signal: Thu 20:00 (Fair). Peak afternoon wind is about 9.6 m/s.

Email me when it is good

Sunrise

06:09

Sunset

20:25

Water

26.1°C

Max air

30.6°C

Sky

Clear

0% cloud

Good window is available today

Next safe window: Thu 04:00–07:00 (14% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Thursday

✅ excellent conditions

Main blocker: Tide/current

Friday

❌ poor conditions

Main blocker: Waves

Best available hours

Next safe window starts at Thu 04:00 until 07:00.

Why this verdict

Main blockers across the next 72 hours:

  • Waves (21 hours)
  • Tide/current (21 hours)
  • Wind (20 hours)

Jellyfish drift risk

Drift estimate from wind, swell, current and warm water.

Low · 34/100

Low peak drift risk around Thu 11:00.

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

❌ Poor

Santorini

172 km away

❌ Poor

Advanced forecast data

Viewing historical data

Wed 23:00 – Sat 23:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.0 around Thu 02:00; 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 0.58m to 0.64m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 10.1 to 26.8m/s).

Tides range from -0.5m 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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Wed 23:00 0.64 · high 16.90 · high 23.90 · good poor
Thu 00:00 0.64 · high 16.00 · high 23.90 · good poor
Thu 01:00 0.64 · high 16.00 · high 23.90 · good poor
Thu 02:00 0.64 · high 16.30 · high 23.80 · good poor
Thu 03:00 0.64 · high 17.80 · high 23.80 · good poor
Thu 04:00 0.64 · high 18.60 · high 23.80 · good poor
Thu 05:00 0.64 · high 19.60 · high 23.80 · good poor
Thu 06:00 0.64 · high 21.80 · high 23.80 · good poor
Thu 07:00 0.62 · high 22.20 · high 23.90 · good poor
Thu 08:00 0.62 · high 23.40 · high 23.90 · good poor
Thu 09:00 0.60 · high 24.90 · high 24.00 · good poor
Thu 10:00 0.62 · high 25.20 · high 24.00 · good poor
Thu 11:00 0.62 · high 26.10 · high 24.00 · good poor
Thu 12:00 0.64 · high 26.80 · high 24.10 · good poor
Thu 13:00 0.62 · high 26.60 · high 24.10 · good poor
Thu 14:00 0.62 · high 25.60 · high 24.10 · good poor
Thu 15:00 0.60 · high 23.20 · high 24.10 · good poor
Thu 16:00 0.60 · high 19.50 · high 24.10 · good poor
Thu 17:00 0.58 · high 15.10 · high 24.00 · good poor
Thu 18:00 0.58 · high 13.00 · high 24.00 · good poor
Thu 19:00 0.60 · high 12.10 · high 24.00 · good poor
Thu 20:00 0.62 · high 10.90 · high 24.00 · good poor
Thu 21:00 0.64 · high 10.10 · high 24.00 · good poor
Thu 22:00 0.64 · high 10.40 · high 24.00 · good poor
Thu 23:00 0.62 · high 10.70 · high 23.90 · good poor
Fri 00:00 0.62 · high 11.30 · high 23.90 · good poor
Fri 01:00 0.60 · high 12.10 · high 23.90 · good poor
Fri 02:00 0.60 · high 12.70 · high 23.90 · good poor
Fri 03:00 0.58 · high 12.90 · high 23.90 · good poor
Fri 04:00 0.56 · high 12.90 · high 23.90 · good poor
Fri 05:00 0.54 · high 12.80 · high 23.90 · good poor
Fri 06:00 0.52 · high 12.50 · high 23.90 · good poor
Fri 07:00 0.50 · high 12.40 · high 24.00 · good poor
Fri 08:00 0.50 · high 12.90 · high 24.10 · good poor
Fri 09:00 0.48 · high 12.90 · high 24.20 · good poor
Fri 10:00 0.48 · high 15.20 · high 24.30 · good poor
Fri 11:00 0.46 · high 15.50 · high 24.50 · good poor
Fri 12:00 0.46 · high 13.80 · high 24.50 · good poor
Fri 13:00 0.44 · high 13.00 · high 24.60 · good poor
Fri 14:00 0.44 · high 12.40 · high 24.60 · good poor
Fri 15:00 0.42 · high 9.30 · high 24.60 · good poor
Fri 16:00 0.42 · high 7.40 · high 24.60 · good poor
Fri 17:00 0.42 · high 4.70 · good 24.50 · good poor
Fri 18:00 0.42 · high 6.00 · high 24.50 · good poor
Fri 19:00 0.42 · high 8.10 · high 24.50 · good poor
Fri 20:00 0.42 · high 7.60 · high 24.50 · good poor
Fri 21:00 0.42 · high 8.00 · high 24.40 · good poor
Fri 22:00 0.42 · high 8.00 · high 24.40 · good poor
Fri 23:00 0.40 · high 7.40 · high 24.40 · good poor
Sat 00:00 0.40 · high 8.30 · high 24.30 · good poor
Sat 01:00 0.40 · high 9.40 · high 24.30 · good poor
Sat 02:00 0.40 · high 10.10 · high 24.30 · good poor
Sat 03:00 0.40 · high 10.20 · high 24.20 · good poor
Sat 04:00 0.40 · high 10.40 · high 24.20 · good poor
Sat 05:00 0.40 · high 10.30 · high 24.20 · good poor
Sat 06:00 0.40 · high 11.10 · high 24.30 · good poor
Sat 07:00 0.40 · high 11.80 · high 24.40 · good poor
Sat 08:00 0.42 · high 11.60 · high 24.60 · good poor
Sat 09:00 0.42 · high 11.70 · high 24.90 · good poor
Sat 10:00 0.44 · high 14.90 · high 25.10 · good poor
Sat 11:00 0.44 · high 15.80 · high 25.30 · good poor
Sat 12:00 0.46 · high 16.70 · high 25.40 · good poor
Sat 13:00 0.36 · good 17.40 · high 26.20 · good fair
Sat 14:00 0.38 · high 16.30 · high 26.20 · good fair
Sat 15:00 0.38 · high 14.90 · high 26.10 · good poor
Sat 16:00 0.38 · high 13.10 · high 25.90 · good fair
Sat 17:00 0.38 · high 13.00 · high 25.80 · good fair
Sat 18:00 0.38 · high 11.80 · high 25.70 · good poor
Sat 19:00 0.38 · high 12.30 · high 25.60 · good poor
Sat 20:00 0.40 · high 7.80 · high 25.50 · good poor
Sat 21:00 0.40 · high 2.50 · good 25.40 · good poor
Sat 22:00 0.40 · high 3.60 · good 25.30 · good poor