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 19:40

Kefalonia has a usable snorkeling window around Wed 20:00. The main thing to watch is tide/current.

Score: 6.3/10

Best time: Wed 20:00

Main risk: Tide/Current

No useful morning window is showing yet.

Best afternoon signal: Wed 20:00 (Good). Peak afternoon wind is about 3.5 m/s.

Email me when it is good

Sunrise

06:32

Sunset

20:56

Water

27.9°C

Max air

29.8°C

Sky

Clear

0% cloud

Good window is available today

Next safe window: Wed 17:00 (3% 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 17:00.

Why this verdict

Main blockers across the next 72 hours:

  • Tide/current (35 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

⚠️ Fair

Skiathos

277 km away

✅ Good

Advanced forecast data

Viewing historical data

Fri 16:00 – Mon 16:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.66 around Sat 11:00; 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.

0/24 sampled hours stay at or below 0.36m (range 0.42m to 0.46m).

Wind is at or below 5.4m/s in 11/24 sampled hours (range 1.1 to 11.3m/s).

Tides range from -0.56m to -0.4m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
fair ⚠️ Fair
fair ⚠️ Fair
good 🌟 Good
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
good 🌟 Good
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
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
Fri 16:00 0.44 · high 11.30 · high 26.70 · good fair
Fri 17:00 0.46 · high 8.10 · high 26.60 · good fair
Fri 18:00 0.46 · high 4.80 · good 26.50 · good good
Fri 19:00 0.46 · high 3.60 · good 26.40 · good poor
Fri 20:00 0.44 · high 4.40 · good 26.40 · good poor
Fri 21:00 0.44 · high 5.50 · high 26.30 · good poor
Fri 22:00 0.44 · high 5.50 · high 26.20 · good poor
Fri 23:00 0.42 · high 5.70 · high 26.10 · good poor
Sat 00:00 0.42 · high 5.40 · good 26.10 · good poor
Sat 01:00 0.42 · high 5.80 · high 26.00 · good poor
Sat 02:00 0.42 · high 5.20 · good 26.00 · good poor
Sat 03:00 0.42 · high 6.20 · high 25.90 · good poor
Sat 04:00 0.44 · high 6.00 · high 25.90 · good good
Sat 05:00 0.44 · high 4.20 · good 25.90 · good good
Sat 06:00 0.46 · high 2.30 · good 26.00 · good good
Sat 07:00 0.46 · high 1.90 · good 26.10 · good good
Sat 08:00 0.46 · high 1.80 · good 26.30 · good good
Sat 09:00 0.46 · high 1.10 · good 26.60 · good good
Sat 10:00 0.46 · high 4.60 · good 26.80 · good good
Sat 11:00 0.46 · high 5.80 · high 27.10 · good fair
Sat 12:00 0.46 · high 6.60 · high 27.20 · good fair
Sat 13:00 0.46 · high 5.50 · high 27.20 · good fair
Sat 14:00 0.44 · high 5.50 · high 27.10 · good fair
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