SnorkelForecast.com

Kefalonia Snorkel Report Today

Greece · Updated Sat 05:02 (EEST) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Sun 17:21

Kefalonia has a usable snorkeling window around Sun 18:00. The main thing to watch is tide/current.

Score: 8.8/10

Best time: Sun 18:00

Main risk: Tide/Current

No useful morning window is showing yet.

Best afternoon signal: Sun 19:00 (Excellent). Peak afternoon wind is about 3.8 m/s.

Email me when it is good

Sunrise

06:29

Sunset

20:58

Water

28.2°C

Max air

34.9°C

Sky

Clear

0% cloud

Good window is available today

Next safe window: Sun 15:00–17:00 (47% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Sunday

✅ excellent conditions

Main blocker: Tide/current

Monday

✅ excellent conditions

Main blocker: Tide/current

Tuesday

✅ excellent conditions

Main blocker: Tide/current

Best available hours

Next safe window starts at Sun 15:00 until 17:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (33 hours)
  • Darkness (20 hours)

Jellyfish drift risk

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

Low · 31/100

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

Sun 17:00

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

Thu 14:00 – Sun 14:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.84 around Thu 17:00; 15 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 0.28m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.5 to 3.64m/s).

Tides range from -0.54m to -0.37m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
good 🌟 Good
good 🌟 Good
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
excellent ✅ Excellent
excellent ✅ Excellent
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
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Thu 14:00 0.10 · good 3.31 · good 27.30 · good excellent
Thu 15:00 0.12 · good 3.18 · good 27.20 · good excellent
Thu 16:00 0.14 · good 3.26 · good 27.00 · good excellent
Thu 17:00 0.16 · good 3.28 · good 26.80 · good excellent
Thu 18:00 0.18 · good 3.24 · good 26.70 · good excellent
Thu 19:00 0.18 · good 3.60 · good 26.70 · good poor
Thu 20:00 0.16 · good 3.21 · good 26.60 · good poor
Thu 21:00 0.16 · good 3.11 · good 26.60 · good poor
Thu 22:00 0.16 · good 3.30 · good 26.50 · good poor
Thu 23:00 0.14 · good 3.01 · good 26.50 · good poor
Fri 00:00 0.14 · good 2.72 · good 26.50 · good poor
Fri 01:00 0.14 · good 2.19 · good 26.40 · good poor
Fri 02:00 0.14 · good 1.94 · good 26.40 · good poor
Fri 03:00 0.14 · good 2.20 · good 26.30 · good poor
Fri 04:00 0.16 · good 2.19 · good 26.30 · good excellent
Fri 05:00 0.16 · good 1.39 · good 26.30 · good excellent
Fri 06:00 0.18 · good 0.90 · good 26.40 · good excellent
Fri 07:00 0.20 · good 0.50 · good 26.50 · good excellent
Fri 08:00 0.20 · good 0.61 · good 26.70 · good excellent
Fri 09:00 0.22 · good 1.26 · good 26.90 · good excellent
Fri 10:00 0.24 · good 1.91 · good 27.10 · good excellent
Fri 11:00 0.24 · good 2.60 · good 27.30 · good excellent
Fri 12:00 0.26 · good 3.57 · good 27.40 · good good
Fri 13:00 0.28 · good 3.64 · good 27.40 · good good
Fri 14:00 0.28 · good 3.94 · good 27.40 · good excellent
Fri 15:00 0.30 · good 3.64 · good 27.30 · good excellent
Fri 16:00 0.30 · good 3.34 · good 27.20 · good good
Fri 17:00 0.28 · good 3.05 · good 27.10 · good good
Fri 18:00 0.28 · good 3.06 · good 27.10 · good poor
Fri 19:00 0.28 · good 3.10 · good 27.00 · good poor
Fri 20:00 0.26 · good 3.16 · good 27.00 · good poor
Fri 21:00 0.26 · good 2.60 · good 27.00 · good poor
Fri 22:00 0.24 · good 1.42 · good 27.00 · good poor
Fri 23:00 0.24 · good 0.63 · good 27.00 · good poor
Sat 00:00 0.22 · good 0.22 · good 27.00 · good poor
Sat 01:00 0.22 · good 0.94 · good 26.90 · good poor
Sat 02:00 0.20 · good 1.60 · good 26.90 · good poor
Sat 03:00 0.20 · good 1.50 · good 26.80 · good poor
Sat 04:00 0.20 · good 1.40 · good 26.80 · good excellent
Sat 05:00 0.18 · good 0.81 · good 26.80 · good excellent
Sat 06:00 0.18 · good 0.41 · good 27.00 · good excellent
Sat 07:00 0.18 · good 1.36 · good 27.10 · good excellent
Sat 08:00 0.16 · good 1.75 · good 27.30 · good excellent
Sat 09:00 0.16 · good 2.59 · good 27.50 · good excellent
Sat 10:00 0.16 · good 2.86 · good 27.70 · good excellent
Sat 11:00 0.14 · good 3.26 · good 27.90 · good excellent
Sat 12:00 0.14 · good 3.69 · good 28.00 · good excellent
Sat 13:00 0.14 · good 3.89 · good 28.00 · good excellent
Sat 14:00 0.12 · good 3.45 · good 28.00 · good excellent
Sat 15:00 0.12 · good 3.11 · good 27.90 · good excellent
Sat 16:00 0.12 · good 2.60 · good 27.90 · good excellent
Sat 17:00 0.10 · good 2.20 · good 27.80 · good excellent
Sat 18:00 0.10 · good 1.50 · good 27.70 · good poor
Sat 19:00 0.10 · good 1.14 · good 27.70 · good poor
Sat 20:00 0.08 · good 1.49 · good 27.70 · good poor
Sat 21:00 0.08 · good 1.60 · good 27.60 · good poor
Sat 22:00 0.08 · good 1.33 · good 27.60 · good poor
Sat 23:00 0.08 · good 0.76 · good 27.60 · good poor
Sun 00:00 0.08 · good 0.71 · good 27.50 · good poor
Sun 01:00 0.08 · good 0.71 · good 27.50 · good poor
Sun 02:00 0.08 · good 1.13 · good 27.40 · good poor
Sun 03:00 0.08 · good 1.35 · good 27.30 · good poor
Sun 04:00 0.08 · good 1.32 · good 27.30 · good excellent
Sun 05:00 0.08 · good 1.43 · good 27.30 · good excellent
Sun 06:00 0.08 · good 0.50 · good 27.30 · good excellent
Sun 07:00 0.08 · good 0.71 · good 27.50 · good excellent
Sun 08:00 0.10 · good 1.30 · good 27.70 · good excellent
Sun 09:00 0.10 · good 1.75 · good 27.90 · good excellent
Sun 10:00 0.10 · good 2.20 · good 28.10 · good excellent
Sun 11:00 0.10 · good 2.82 · good 28.30 · good excellent
Sun 12:00 0.10 · good 3.26 · good 28.40 · good excellent
Sun 13:00 0.10 · good 3.72 · good 28.40 · good excellent