Can you snorkel in Kos today?

Yes. The next good snorkeling window in Kos starts Sun 04:00 and lasts until 17:00. Around 39% of the next 72 hours are suitable.

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

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 Kos 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.

Kos Snorkel Report Today

Greece · Updated Sat 05:04 (EEST) · Source: Snapshot

The skinny

Go in the best window Report Sat 23:46

Kos has a usable snorkeling window around Sun 07:00. The main thing to watch is tide/current.

Score: 6.7/10

Best time: Sun 07:00

Main risk: Tide/Current

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:05

Sunset

20:28

Water

25.6°C

Max air

33.9°C

Sky

Clear

3% cloud

Good window is available today

Next safe window: Sun 04:00–17:00 (39% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Sunday

✅ good conditions

Main blocker: Tide/current

Monday

✅ good conditions

Main blocker: Tide/current

Tuesday

⚠️ fair conditions

Main blocker: Waves

Best available hours

Next safe window starts at Sun 04:00 until 17:00.

Why this verdict

Main blockers across the next 72 hours:

Tide/current (56 hours)
Waves (29 hours)
Darkness (27 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

Symi

58 km away

✅ Good

Rhodes

103 km away

✅ Good

Naxos

171 km away

✅ Good

Santorini

172 km away

✅ Good

Advanced forecast data

Viewing live forecast

Sat 20:00 – Tue 20:00 (EEST)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.67 around Sun 19:00; 14 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.

15/24 sampled hours stay at or below 0.36m (range 0.3m to 0.54m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.93 to 3.11m/s).

Tides range from -0.41m to -0.3m; 0 of 24 hours are in or near peak slack windows.

72-hour forecast overview

Sat 21:00 poor ❌ Limited

Sat 22:00 poor ❌ Limited

Sat 23:00 poor ❌ Limited

Sun 00:00 poor ❌ Limited

Sun 01:00 poor ❌ Limited

Sun 02:00 poor ❌ Limited

Sun 03:00 poor ❌ Limited

Sun 04:00 good 🌟 Good

Sun 05:00 good 🌟 Good

Sun 06:00 good 🌟 Good

Sun 07:00 good 🌟 Good

Sun 08:00 good 🌟 Good

Sun 09:00 good 🌟 Good

Sun 10:00 good 🌟 Good

Sun 11:00 good 🌟 Good

Sun 12:00 good 🌟 Good

Sun 13:00 good 🌟 Good

Sun 14:00 good 🌟 Good

Sun 15:00 good 🌟 Good

Sun 16:00 good 🌟 Good

Sun 17:00 good 🌟 Good

Sun 18:00 poor ❌ Limited

Sun 19:00 poor ❌ Limited

Sun 20:00 poor ❌ Limited

Sun 21:00 poor ❌ Limited

Sun 22:00 poor ❌ Limited

Sun 23:00 poor ❌ Limited

Mon 00:00 poor ❌ Limited

Mon 01:00 poor ❌ Limited

Mon 02:00 poor ❌ Limited

Mon 03:00 poor ❌ Limited

Mon 04:00 good 🌟 Good

Mon 05:00 good 🌟 Good

Mon 06:00 good 🌟 Good

Mon 07:00 good 🌟 Good

Mon 08:00 good 🌟 Good

Mon 09:00 good 🌟 Good

Mon 10:00 good 🌟 Good

Mon 11:00 good 🌟 Good

Mon 12:00 fair ⚠️ Fair

Mon 13:00 fair ⚠️ Fair

Mon 14:00 fair ⚠️ Fair

Mon 15:00 fair ⚠️ Fair

Mon 16:00 fair ⚠️ Fair

Mon 17:00 fair ⚠️ Fair

Mon 18:00 poor ❌ Limited

Mon 19:00 poor ❌ Limited

Mon 20:00 poor ❌ Limited

Mon 21:00 poor ❌ Limited

Mon 22:00 poor ❌ Limited

Mon 23:00 poor ❌ Limited

Tue 00:00 poor ❌ Limited

Tue 01:00 poor ❌ Limited

Tue 02:00 poor ❌ Limited

Tue 03:00 poor ❌ Limited

Tue 04:00 fair ⚠️ Fair

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 21:00	0.54 · high	2.77 · good	25.60 · good	poor
Sat 22:00	0.52 · high	2.16 · good	25.60 · good	poor
Sat 23:00	0.50 · high	1.93 · good	25.60 · good	poor
Sun 00:00	0.48 · high	2.10 · good	25.60 · good	poor
Sun 01:00	0.46 · high	2.19 · good	25.70 · good	poor
Sun 02:00	0.44 · high	2.31 · good	25.70 · good	poor
Sun 03:00	0.42 · high	2.40 · good	25.70 · good	poor
Sun 04:00	0.40 · high	2.79 · good	25.80 · good	good
Sun 05:00	0.38 · high	2.87 · good	25.90 · good	good
Sun 06:00	0.36 · good	3.00 · good	26.00 · good	good
Sun 07:00	0.36 · good	2.56 · good	26.20 · good	good
Sun 08:00	0.34 · good	2.80 · good	26.40 · good	good
Sun 09:00	0.34 · good	2.64 · good	26.70 · good	good
Sun 10:00	0.34 · good	2.52 · good	26.90 · good	good
Sun 11:00	0.32 · good	2.56 · good	27.20 · good	good
Sun 12:00	0.32 · good	3.05 · good	27.30 · good	good
Sun 13:00	0.32 · good	3.11 · good	27.40 · good	good
Sun 14:00	0.32 · good	2.97 · good	27.40 · good	good
Sun 15:00	0.32 · good	3.00 · good	27.40 · good	good
Sun 16:00	0.32 · good	2.46 · good	27.30 · good	good
Sun 17:00	0.32 · good	2.47 · good	27.30 · good	good
Sun 18:00	0.32 · good	2.47 · good	27.20 · good	poor
Sun 19:00	0.32 · good	2.60 · good	27.20 · good	poor
Sun 20:00	0.30 · good	2.41 · good	27.20 · good	poor
Sun 21:00	0.30 · good	2.40 · good	27.20 · good	poor
Sun 22:00	0.30 · good	2.52 · good	27.20 · good	poor
Sun 23:00	0.30 · good	2.43 · good	27.10 · good	poor
Mon 00:00	0.30 · good	2.47 · good	27.10 · good	poor
Mon 01:00	0.30 · good	2.50 · good	27.10 · good	poor
Mon 02:00	0.30 · good	2.62 · good	27.10 · good	poor
Mon 03:00	0.30 · good	2.82 · good	27.10 · good	poor
Mon 04:00	0.32 · good	3.01 · good	27.10 · good	good
Mon 05:00	0.32 · good	3.13 · good	27.10 · good	good
Mon 06:00	0.34 · good	3.50 · good	27.10 · good	good
Mon 07:00	0.36 · good	3.88 · good	27.20 · good	good
Mon 08:00	0.36 · good	4.22 · good	27.20 · good	good
Mon 09:00	0.38 · high	4.47 · good	27.30 · good	good
Mon 10:00	0.38 · high	4.88 · good	27.40 · good	good
Mon 11:00	0.40 · high	5.36 · good	27.40 · good	good
Mon 12:00	0.40 · high	6.34 · high	27.50 · good	fair
Mon 13:00	0.42 · high	6.62 · high	27.50 · good	fair
Mon 14:00	0.46 · high	6.64 · high	27.50 · good	fair
Mon 15:00	0.48 · high	5.86 · high	27.40 · good	fair
Mon 16:00	0.50 · high	5.22 · good	27.40 · good	fair
Mon 17:00	0.54 · high	5.27 · good	27.30 · good	fair
Mon 18:00	0.56 · high	5.19 · good	27.30 · good	poor
Mon 19:00	0.56 · high	4.91 · good	27.20 · good	poor
Mon 20:00	0.58 · high	4.69 · good	27.20 · good	poor
Mon 21:00	0.58 · high	4.49 · good	27.10 · good	poor
Mon 22:00	0.56 · high	4.08 · good	27.00 · good	poor
Mon 23:00	0.56 · high	4.08 · good	27.00 · good	poor
Tue 00:00	0.54 · high	4.17 · good	26.90 · good	poor
Tue 01:00	0.54 · high	4.21 · good	26.90 · good	poor
Tue 02:00	0.52 · high	3.98 · good	26.80 · good	poor
Tue 03:00	0.52 · high	4.53 · good	26.80 · good	poor
Tue 04:00	0.54 · high	4.66 · good	26.80 · good	fair