Can you snorkel in Kefalonia today?

Yes. The next good snorkeling window in Kefalonia starts Tue 10:00 and lasts until 17:00. Around 33% of the next 72 hours are suitable.

What is the best time of day to snorkel in Kefalonia?

Snorkel during daylight, ideally in the morning before the wind picks up, and around high slack tide when water is clearest and currents are weakest. SnorkelForecast scores every daylight hour in Kefalonia so you can pick the calmest window.

What is the best tide for snorkeling?

High slack tide — within about an hour of the high-tide peak when currents are weakest — is the safest, clearest window. Strong low tides, strong tidal flow near channels or headlands, and large tidal-range days reduce score.

Kefalonia Snorkel Report Today

Greece · Updated Tue 04:14 (EEST) · Source: Snapshot

The skinny

Go in the best window Report Tue 12:20

Kefalonia has a usable snorkeling window around Tue 13:00. The main thing to watch is tide/current.

Score: 8.9/10

Best time: Tue 13:00

Main risk: Tide/Current

No useful morning window is showing yet.

Best afternoon signal: Tue 13:00 (Excellent). Peak afternoon wind is about 3.2 m/s.

Email me when it is good

Sunrise

06:31

Sunset

20:57

Water

28.4°C

Max air

36.6°C

Sky

Clear

0% cloud

Good window is available today

Next safe window: Tue 10:00–17:00 (33% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Tuesday

✅ excellent conditions

Main blocker: Tide/current

Wednesday

✅ excellent conditions

Main blocker: Tide/current

Thursday

⚠️ fair conditions

Main blocker: Waves

Best available hours

Next safe window starts at Tue 10:00 until 17:00.

Why this verdict

Main blockers across the next 72 hours:

Tide/current (64 hours)
Darkness (30 hours)
Waves (29 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Tue 21:00.

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

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 09:00 – Sat 09:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.9 around Thu 10:00; 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 0.08m to 0.22m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.22 to 3.41m/s).

Tides range from -0.58m to -0.39m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview

Wed 09:00 good 🌟 Good

Wed 10:00 excellent ✅ Excellent

Wed 11:00 excellent ✅ Excellent

Wed 12:00 excellent ✅ Excellent

Wed 13:00 excellent ✅ Excellent

Wed 14:00 excellent ✅ Excellent

Wed 15:00 excellent ✅ Excellent

Wed 16:00 excellent ✅ Excellent

Wed 17:00 excellent ✅ Excellent

Wed 18:00 excellent ✅ Excellent

Wed 19:00 poor ❌ Limited

Wed 20:00 poor ❌ Limited

Wed 21:00 poor ❌ Limited

Wed 22:00 poor ❌ Limited

Wed 23:00 poor ❌ Limited

Thu 00:00 poor ❌ Limited

Thu 01:00 poor ❌ Limited

Thu 02:00 poor ❌ Limited

Thu 03:00 poor ❌ Limited

Thu 04:00 excellent ✅ Excellent

Thu 05:00 excellent ✅ Excellent

Thu 06:00 excellent ✅ Excellent

Thu 07:00 excellent ✅ Excellent

Thu 08:00 excellent ✅ Excellent

Thu 09:00 excellent ✅ Excellent

Thu 10:00 excellent ✅ Excellent

Thu 11:00 excellent ✅ Excellent

Thu 12:00 excellent ✅ Excellent

Thu 13:00 excellent ✅ Excellent

Thu 14:00 excellent ✅ Excellent

Thu 15:00 excellent ✅ Excellent

Thu 16:00 excellent ✅ Excellent

Thu 17:00 excellent ✅ Excellent

Thu 18:00 excellent ✅ Excellent

Thu 19:00 poor ❌ Limited

Thu 20:00 poor ❌ Limited

Thu 21:00 poor ❌ Limited

Thu 22:00 poor ❌ Limited

Thu 23:00 poor ❌ Limited

Fri 00:00 poor ❌ Limited

Fri 01:00 poor ❌ Limited

Fri 02:00 poor ❌ Limited

Fri 03:00 poor ❌ Limited

Fri 04:00 excellent ✅ Excellent

Fri 05:00 excellent ✅ Excellent

Fri 06:00 excellent ✅ Excellent

Fri 07:00 excellent ✅ Excellent

Fri 08:00 excellent ✅ Excellent

Fri 09:00 excellent ✅ Excellent

Fri 10:00 excellent ✅ Excellent

Fri 11:00 excellent ✅ Excellent

Fri 12:00 good 🌟 Good

Fri 13:00 good 🌟 Good

Fri 14:00 excellent ✅ Excellent

Fri 15:00 excellent ✅ Excellent

Fri 16:00 good 🌟 Good

Fri 17:00 good 🌟 Good

Fri 18:00 poor ❌ Limited

Fri 19:00 poor ❌ Limited

Fri 20:00 poor ❌ Limited

Fri 21:00 poor ❌ Limited

Fri 22:00 poor ❌ Limited

Fri 23:00 poor ❌ Limited

Sat 00:00 poor ❌ Limited

Sat 01:00 poor ❌ Limited

Sat 02:00 poor ❌ Limited

Sat 03:00 poor ❌ Limited

Sat 04:00 excellent ✅ Excellent

Sat 05:00 excellent ✅ Excellent

Sat 06:00 excellent ✅ Excellent

Sat 07:00 excellent ✅ Excellent

Sat 08:00 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
Wed 09:00	0.22 · good	2.64 · good	26.70 · good	good
Wed 10:00	0.20 · good	3.32 · good	26.90 · good	excellent
Wed 11:00	0.20 · good	3.41 · good	27.10 · good	excellent
Wed 12:00	0.18 · good	3.22 · good	27.20 · good	excellent
Wed 13:00	0.16 · good	3.00 · good	27.20 · good	excellent
Wed 14:00	0.16 · good	3.01 · good	27.20 · good	excellent
Wed 15:00	0.14 · good	2.75 · good	27.20 · good	excellent
Wed 16:00	0.14 · good	2.40 · good	27.20 · good	excellent
Wed 17:00	0.14 · good	1.96 · good	27.10 · good	excellent
Wed 18:00	0.14 · good	1.56 · good	27.10 · good	excellent
Wed 19:00	0.14 · good	2.00 · good	27.00 · good	poor
Wed 20:00	0.12 · good	2.12 · good	27.00 · good	poor
Wed 21:00	0.12 · good	2.19 · good	26.90 · good	poor
Wed 22:00	0.12 · good	1.88 · good	26.80 · good	poor
Wed 23:00	0.10 · good	2.31 · good	26.70 · good	poor
Thu 00:00	0.10 · good	2.69 · good	26.70 · good	poor
Thu 01:00	0.10 · good	2.69 · good	26.60 · good	poor
Thu 02:00	0.10 · good	2.82 · good	26.50 · good	poor
Thu 03:00	0.10 · good	2.88 · good	26.50 · good	poor
Thu 04:00	0.10 · good	2.55 · good	26.40 · good	excellent
Thu 05:00	0.08 · good	1.78 · good	26.40 · good	excellent
Thu 06:00	0.08 · good	0.32 · good	26.50 · good	excellent
Thu 07:00	0.08 · good	0.22 · good	26.60 · good	excellent
Thu 08:00	0.08 · good	0.76 · good	26.80 · good	excellent
Thu 09:00	0.08 · good	1.61 · good	27.00 · good	excellent
Thu 10:00	0.08 · good	1.84 · good	27.20 · good	excellent
Thu 11:00	0.08 · good	2.55 · good	27.40 · good	excellent
Thu 12:00	0.08 · good	3.20 · good	27.50 · good	excellent
Thu 13:00	0.10 · good	3.21 · good	27.40 · good	excellent
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