MARINE REPORT / 72 HOURS

Kefalonia Snorkel Report Today

Greece · Updated Sat 22:54 (EEST) · Source: Snapshot

The skinny

Go in the best window Data updated Sat 22:54 (EEST)

Kefalonia has a usable snorkeling window around Sun 08:00. The main thing to watch is darkness.

Right now (forecast)

Poor · 0.0/10

Sun 00:00 (EEST)

Later today

Excellent · 8.1/10

Sun 10:00 (EEST)

Next three days

Excellent · 9.1/10

Mon 09:00 (EEST)

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

Score: 8.1/10

Best time: Sun 08:00

Main risk: Darkness

Best morning signal: Sun 10:00 (Excellent).

Best afternoon signal: Sun 12:00 (Excellent). Peak afternoon wind is about 2.8 m/s.

Email me when it is good

Sunrise

07:48

Sunset

18:57

Water

23.6°C

Max air

18.5°C

Sky

Clear

0% cloud

Good model window in the next 72 hours

Next good model window: Sun 08:00–18:00 (48% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Sunday

✅ Excellent conditions

Main blocker: Darkness

Monday

✅ Excellent conditions

Main blocker: Darkness

Tuesday

✅ Excellent conditions

Main blocker: Darkness

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:

  • Darkness (36 hours)
  • Tide/current (7 hours)

Jellyfish drift risk

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

Low · 17/100

Low drift risk now.

water is warm enough for occasional jellyfish; 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

Zakynthos - Navagio

36 km away

✅ Good

Zakynthos

45 km away

✅ Good

Lefkada

60 km away

✅ Good

Skiathos

277 km away

✅ Good

Advanced forecast data

Viewing historical data

Wed 00:00 – Sat 00:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.83 around Wed 10:00; 12 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 0.1m to 0.12m).

Wind is at or below 5.4m/s in 23/24 sampled hours (range 2.2 to 6.01m/s).

Tides range from -0.57m to -0.43m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
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
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Wed 00:00 0.10 · good 2.77 · good 25.80 · good Poor
Wed 01:00 0.10 · good 2.55 · good 25.80 · good Poor
Wed 02:00 0.10 · good 2.62 · good 25.80 · good Poor
Wed 03:00 0.10 · good 2.90 · good 25.80 · good Poor
Wed 04:00 0.10 · good 2.97 · good 25.80 · good Poor
Wed 05:00 0.12 · good 2.91 · good 25.70 · good Poor
Wed 06:00 0.12 · good 2.83 · good 25.70 · good Poor
Wed 07:00 0.12 · good 2.83 · good 25.70 · good Poor
Wed 08:00 0.12 · good 2.77 · good 25.70 · good Excellent
Wed 09:00 0.12 · good 2.28 · good 25.70 · good Excellent
Wed 10:00 0.12 · good 2.20 · good 25.70 · good Excellent
Wed 11:00 0.12 · good 2.27 · good 25.80 · good Excellent
Wed 12:00 0.12 · good 2.83 · good 25.80 · good Excellent
Wed 13:00 0.12 · good 3.39 · good 25.90 · good Excellent
Wed 14:00 0.12 · good 3.75 · good 25.90 · good Excellent
Wed 15:00 0.12 · good 4.31 · good 25.90 · good Excellent
Wed 16:00 0.12 · good 5.16 · good 25.90 · good Excellent
Wed 17:00 0.10 · good 6.01 · high 25.90 · good Excellent
Wed 18:00 0.10 · good 3.97 · good 25.90 · good Excellent
Wed 19:00 0.10 · good 3.89 · good 25.80 · good Excellent
Wed 20:00 0.10 · good 3.19 · good 25.80 · good Poor
Wed 21:00 0.10 · good 2.76 · good 25.80 · good Poor
Wed 22:00 0.10 · good 3.06 · good 25.80 · good Poor
Wed 23:00 0.12 · good 2.91 · good 25.70 · good Poor
Thu 00:00 0.12 · good 2.83 · good 25.70 · good Poor
Thu 01:00 0.12 · good 3.19 · good 25.70 · good Poor
Thu 02:00 0.12 · good 3.12 · good 25.70 · good Poor
Thu 03:00 0.12 · good 3.19 · good 25.70 · good Poor
Thu 04:00 0.12 · good 3.33 · good 25.70 · good Poor
Thu 05:00 0.12 · good 3.47 · good 25.60 · good Poor
Thu 06:00 0.12 · good 3.32 · good 25.60 · good Poor
Thu 07:00 0.12 · good 3.19 · good 25.60 · good Poor
Thu 08:00 0.12 · good 3.26 · good 25.60 · good Excellent
Thu 09:00 0.12 · good 3.39 · good 25.60 · good Excellent
Thu 10:00 0.12 · good 3.69 · good 25.60 · good Excellent
Thu 11:00 0.14 · good 4.08 · good 25.70 · good Excellent
Thu 12:00 0.14 · good 4.22 · good 25.70 · good Excellent
Thu 13:00 0.14 · good 4.25 · good 25.70 · good Excellent
Thu 14:00 0.24 · good 4.81 · good 25.70 · good Good
Thu 15:00 0.22 · good 5.39 · good 25.70 · good Excellent
Thu 16:00 0.22 · good 5.24 · good 25.70 · good Excellent
Thu 17:00 0.24 · good 4.88 · good 25.70 · good Excellent
Thu 18:00 0.24 · good 5.42 · high 25.70 · good Good
Thu 19:00 0.24 · good 4.16 · good 25.70 · good Good
Thu 20:00 0.08 · good 4.95 · good 25.60 · good Poor
Thu 21:00 0.08 · good 5.09 · good 25.60 · good Poor
Thu 22:00 0.08 · good 4.83 · good 25.60 · good Poor
Thu 23:00 0.10 · good 3.69 · good 25.60 · good Poor
Fri 00:00 0.10 · good 3.48 · good 25.60 · good Poor
Fri 01:00 0.10 · good 3.76 · good 25.60 · good Poor
Fri 02:00 0.10 · good 3.89 · good 25.60 · good Poor
Fri 03:00 0.10 · good 4.10 · good 25.60 · good Poor
Fri 04:00 0.10 · good 4.10 · good 25.60 · good Poor
Fri 05:00 0.10 · good 3.96 · good 25.60 · good Poor
Fri 06:00 0.10 · good 3.47 · good 25.50 · good Poor
Fri 07:00 0.10 · good 3.55 · good 25.50 · good Poor
Fri 08:00 0.12 · good 3.69 · good 25.50 · good Good
Fri 09:00 0.12 · good 3.83 · good 25.50 · good Good
Fri 10:00 0.12 · good 4.46 · good 25.50 · good Good
Fri 11:00 0.12 · good 5.33 · good 25.60 · good Excellent
Fri 12:00 0.12 · good 6.80 · high 25.60 · good Excellent
Fri 13:00 0.12 · good 6.74 · high 25.60 · good Excellent
Fri 14:00 0.12 · good 6.34 · high 25.70 · good Good
Fri 15:00 0.12 · good 6.67 · high 25.70 · good Excellent
Fri 16:00 0.12 · good 6.66 · high 25.70 · good Good
Fri 17:00 0.12 · good 6.58 · high 25.60 · good Good
Fri 18:00 0.12 · good 6.68 · high 25.60 · good Good
Fri 19:00 0.12 · good 3.89 · good 25.60 · good Good
Fri 20:00 0.14 · good 3.54 · good 25.50 · good Poor
Fri 21:00 0.18 · good 4.25 · good 25.50 · good Poor
Fri 22:00 0.18 · good 3.22 · good 25.50 · good Poor
Fri 23:00 0.18 · good 2.66 · good 25.50 · good Poor