SnorkelForecast.com

Kefalonia Snorkel Report Today

Greece · Updated Tue 04:14 (EEST) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Wed 18:19

Kefalonia has a usable snorkeling window around Wed 19:00. The main thing to watch is tide/current.

Score: 6.6/10

Best time: Wed 19:00

Main risk: Tide/Current

No useful morning window is showing yet.

Best afternoon signal: Wed 19:00 (Good). Peak afternoon wind is about 4.0 m/s.

Email me when it is good

Sunrise

06:32

Sunset

20:56

Water

28.2°C

Max air

31.6°C

Sky

Clear

1% cloud

Good window is available today

Next safe window: Wed 16:00–17:00 (6% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

✅ good conditions

Main blocker: Tide/current

Thursday

⚠️ fair conditions

Main blocker: Waves

Friday

❌ poor conditions

Main blocker: Tide/current

Best available hours

Next safe window starts at Wed 16:00 until 17:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (36 hours)
  • Waves (29 hours)
  • Darkness (20 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

Zakynthos - Navagio

36 km away

⚠️ Fair

Zakynthos

45 km away

⚠️ Fair

Lefkada

60 km away

✅ Good

Skiathos

277 km away

✅ Good

Advanced forecast data

Viewing historical data

Sat 15:00 – Tue 15:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.48 around Sat 21:00; 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.

0/24 sampled hours stay at or below 0.36m (range 0.44m to 0.64m).

Wind is at or below 5.4m/s in 10/24 sampled hours (range 2.3 to 12.3m/s).

Tides range from -0.53m to -0.41m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
good 🌟 Good
good 🌟 Good
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
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
excellent ✅ Excellent
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
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
Sat 15:00 0.44 · high 5.80 · high 27.00 · good fair
Sat 16:00 0.46 · high 7.90 · high 26.90 · good fair
Sat 17:00 0.46 · high 7.30 · high 26.80 · good fair
Sat 18:00 0.48 · high 7.60 · high 26.70 · good fair
Sat 19:00 0.50 · high 7.30 · high 26.70 · good poor
Sat 20:00 0.54 · high 6.40 · high 26.60 · good poor
Sat 21:00 0.56 · high 4.30 · good 26.60 · good poor
Sat 22:00 0.58 · high 5.10 · good 26.50 · good poor
Sat 23:00 0.62 · high 2.30 · good 26.50 · good poor
Sun 00:00 0.64 · high 5.40 · good 26.50 · good poor
Sun 01:00 0.64 · high 4.50 · good 26.40 · good poor
Sun 02:00 0.64 · high 4.70 · good 26.40 · good poor
Sun 03:00 0.64 · high 4.80 · good 26.30 · good poor
Sun 04:00 0.62 · high 5.20 · good 26.30 · good fair
Sun 05:00 0.60 · high 4.60 · good 26.30 · good fair
Sun 06:00 0.58 · high 5.10 · good 26.40 · good fair
Sun 07:00 0.56 · high 7.80 · high 26.50 · good poor
Sun 08:00 0.56 · high 7.10 · high 26.70 · good fair
Sun 09:00 0.54 · high 6.10 · high 26.90 · good fair
Sun 10:00 0.54 · high 6.90 · high 27.10 · good fair
Sun 11:00 0.54 · high 6.40 · high 27.30 · good fair
Sun 12:00 0.54 · high 12.30 · high 27.40 · good poor
Sun 13:00 0.54 · high 10.20 · high 27.40 · good poor
Sun 14:00 0.56 · high 8.80 · high 27.40 · good poor
Sun 15:00 0.56 · high 7.40 · high 27.40 · good fair
Sun 16:00 0.56 · high 7.80 · high 27.30 · good fair
Sun 17:00 0.56 · high 8.60 · high 27.20 · good fair
Sun 18:00 0.56 · high 8.20 · high 27.20 · good fair
Sun 19:00 0.56 · high 8.00 · high 27.10 · good poor
Sun 20:00 0.56 · high 8.20 · high 27.00 · good poor
Sun 21:00 0.56 · high 7.30 · high 27.00 · good poor
Sun 22:00 0.54 · high 5.50 · high 26.90 · good poor
Sun 23:00 0.54 · high 4.70 · good 26.80 · good poor
Mon 00:00 0.52 · high 4.30 · good 26.80 · good poor
Mon 01:00 0.50 · high 5.10 · good 26.70 · good poor
Mon 02:00 0.50 · high 4.90 · good 26.70 · good poor
Mon 03:00 0.48 · high 4.10 · good 26.60 · good poor
Mon 04:00 0.48 · high 4.60 · good 26.60 · good fair
Mon 05:00 0.46 · high 3.30 · good 26.60 · good good
Mon 06:00 0.46 · high 1.40 · good 26.60 · good good
Mon 07:00 0.44 · high 6.00 · high 26.70 · good fair
Mon 08:00 0.42 · high 7.10 · high 26.80 · good fair
Mon 09:00 0.40 · high 5.90 · high 27.00 · good fair
Mon 10:00 0.36 · good 2.20 · good 27.40 · good good
Mon 11:00 0.34 · good 2.05 · good 27.60 · good good
Mon 12:00 0.32 · good 2.82 · good 27.70 · good good
Mon 13:00 0.30 · good 3.64 · good 27.70 · good good
Mon 14:00 0.28 · good 3.57 · good 27.70 · good good
Mon 15:00 0.26 · good 3.71 · good 27.60 · good excellent
Mon 16:00 0.26 · good 3.47 · good 27.60 · good excellent
Mon 17:00 0.24 · good 2.83 · good 27.50 · good good
Mon 18:00 0.24 · good 2.28 · good 27.40 · good good
Mon 19:00 0.24 · good 2.67 · good 27.30 · good poor
Mon 20:00 0.22 · good 2.90 · good 27.30 · good poor
Mon 21:00 0.22 · good 2.94 · good 27.20 · good poor
Mon 22:00 0.22 · good 2.50 · good 27.00 · good poor
Mon 23:00 0.22 · good 2.22 · good 27.00 · good poor
Tue 00:00 0.22 · good 2.30 · good 26.90 · good poor
Tue 01:00 0.22 · good 2.30 · good 26.80 · good poor
Tue 02:00 0.22 · good 2.12 · good 26.70 · good poor
Tue 03:00 0.22 · good 2.02 · good 26.70 · good poor
Tue 04:00 0.22 · good 1.66 · good 26.70 · good excellent
Tue 05:00 0.22 · good 0.78 · good 26.60 · good excellent
Tue 06:00 0.22 · good 0.51 · good 26.60 · good excellent
Tue 07:00 0.22 · good 1.14 · good 26.70 · good excellent
Tue 08:00 0.20 · good 1.98 · good 26.70 · good excellent
Tue 09:00 0.20 · good 3.06 · good 26.80 · good good
Tue 10:00 0.20 · good 3.28 · good 26.90 · good good
Tue 11:00 0.22 · good 3.54 · good 26.90 · good good
Tue 12:00 0.22 · good 3.77 · good 26.90 · good good
Tue 13:00 0.22 · good 4.05 · good 26.90 · good good
Tue 14:00 0.24 · good 3.82 · good 26.80 · good good