Can you snorkel in Kos today?

Yes. The next good snorkeling window in Kos starts Wed 04:00 and lasts until 09:00. Around 24% 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 Tue 04:15 (EEST) · Source: Snapshot

The skinny

Go in the best window Report Tue 20:45

Kos has a usable snorkeling window around Wed 07:00. The main thing to watch is waves.

Score: 7.1/10

Best time: Wed 07:00

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

06:07

Sunset

20:26

Water

26.4°C

Max air

30.5°C

Sky

Clear

0% cloud

Good window is available today

Next safe window: Wed 04:00–09:00 (24% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Tuesday

❌ poor conditions

Main blocker: Waves

Wednesday

✅ good conditions

Main blocker: Waves

Thursday

✅ excellent conditions

Main blocker: Tide/current

Best available hours

Next safe window starts at Wed 04:00 until 09:00.

Why this verdict

Main blockers across the next 72 hours:

Waves (44 hours)
Tide/current (44 hours)
Darkness (30 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 historical data

Mon 17:00 – Thu 17:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.45 around Tue 07:00; 6 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 0.9m to 1.24m).

Wind is at or below 5.4m/s in 1/24 sampled hours (range 5.17 to 10.77m/s).

Tides range from -0.43m to -0.26m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview

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

Tue 05:00 fair ⚠️ Fair

Tue 06:00 fair ⚠️ Fair

Tue 07:00 fair ⚠️ Fair

Tue 08:00 poor ❌ Limited

Tue 09:00 fair ⚠️ Fair

Tue 10:00 poor ❌ Limited

Tue 11:00 poor ❌ Limited

Tue 12:00 poor ❌ Limited

Tue 13:00 poor ❌ Limited

Tue 14:00 poor ❌ Limited

Tue 15:00 poor ❌ Limited

Tue 16:00 poor ❌ Limited

Tue 17:00 fair ⚠️ Fair

Tue 18:00 poor ❌ Limited

Tue 19:00 poor ❌ Limited

Tue 20:00 poor ❌ Limited

Tue 21:00 poor ❌ Limited

Tue 22:00 poor ❌ Limited

Tue 23:00 poor ❌ Limited

Wed 00:00 poor ❌ Limited

Wed 01:00 poor ❌ Limited

Wed 02:00 poor ❌ Limited

Wed 03:00 poor ❌ Limited

Wed 04:00 fair ⚠️ Fair

Wed 05:00 fair ⚠️ Fair

Wed 06:00 fair ⚠️ Fair

Wed 07:00 fair ⚠️ Fair

Wed 08:00 fair ⚠️ Fair

Wed 09:00 fair ⚠️ Fair

Wed 10:00 fair ⚠️ Fair

Wed 11:00 fair ⚠️ Fair

Wed 12:00 fair ⚠️ Fair

Wed 13:00 fair ⚠️ Fair

Wed 14:00 fair ⚠️ Fair

Wed 15:00 fair ⚠️ Fair

Wed 16:00 fair ⚠️ Fair

Wed 17:00 fair ⚠️ Fair

Wed 18:00 poor ❌ Limited

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 good 🌟 Good

Thu 05:00 good 🌟 Good

Thu 06:00 good 🌟 Good

Thu 07:00 good 🌟 Good

Thu 08:00 good 🌟 Good

Thu 09:00 fair ⚠️ Fair

Thu 10:00 fair ⚠️ Fair

Thu 11:00 fair ⚠️ Fair

Thu 12:00 fair ⚠️ Fair

Thu 13:00 fair ⚠️ Fair

Thu 14:00 fair ⚠️ Fair

Thu 15:00 fair ⚠️ Fair

Thu 16:00 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
Mon 17:00	1.00 · high	7.14 · high	24.30 · good	fair
Mon 18:00	0.98 · high	6.72 · high	24.30 · good	poor
Mon 19:00	0.96 · high	6.01 · high	24.30 · good	poor
Mon 20:00	0.92 · high	5.45 · high	24.20 · good	poor
Mon 21:00	0.90 · high	5.17 · good	24.20 · good	poor
Mon 22:00	0.90 · high	5.52 · high	24.20 · good	poor
Mon 23:00	0.92 · high	5.46 · high	24.20 · good	poor
Tue 00:00	0.92 · high	6.22 · high	24.20 · good	poor
Tue 01:00	0.92 · high	6.58 · high	24.20 · good	poor
Tue 02:00	0.92 · high	6.38 · high	24.10 · good	poor
Tue 03:00	0.92 · high	6.51 · high	24.10 · good	poor
Tue 04:00	0.96 · high	6.52 · high	24.10 · good	fair
Tue 05:00	0.98 · high	6.70 · high	24.10 · good	fair
Tue 06:00	1.02 · high	7.55 · high	24.10 · good	fair
Tue 07:00	1.04 · high	8.06 · high	24.10 · good	fair
Tue 08:00	1.06 · high	8.57 · high	24.10 · good	poor
Tue 09:00	1.08 · high	9.46 · high	24.10 · good	fair
Tue 10:00	1.12 · high	10.37 · high	24.20 · good	poor
Tue 11:00	1.14 · high	10.77 · high	24.20 · good	poor
Tue 12:00	1.18 · high	10.62 · high	24.20 · good	poor
Tue 13:00	1.20 · high	10.47 · high	24.20 · good	poor
Tue 14:00	1.22 · high	10.47 · high	24.20 · good	poor
Tue 15:00	1.24 · high	10.47 · high	24.20 · good	poor
Tue 16:00	1.22 · high	9.90 · high	24.20 · good	poor
Tue 17:00	1.18 · high	8.91 · high	24.20 · good	fair
Tue 18:00	1.16 · high	8.21 · high	24.20 · good	poor
Tue 19:00	1.12 · high	7.53 · high	24.20 · good	poor
Tue 20:00	1.10 · high	7.59 · high	24.20 · good	poor
Tue 21:00	1.06 · high	6.95 · high	24.20 · good	poor
Tue 22:00	1.02 · high	6.24 · high	24.10 · good	poor
Tue 23:00	0.98 · high	5.66 · high	24.10 · good	poor
Wed 00:00	0.94 · high	5.17 · good	24.10 · good	poor
Wed 01:00	0.92 · high	4.97 · good	24.10 · good	poor
Wed 02:00	0.90 · high	5.36 · good	24.10 · good	poor
Wed 03:00	0.88 · high	5.46 · high	24.10 · good	poor
Wed 04:00	0.90 · high	5.55 · high	24.10 · good	fair
Wed 05:00	0.90 · high	5.63 · high	24.10 · good	fair
Wed 06:00	0.92 · high	7.13 · high	24.10 · good	fair
Wed 07:00	0.90 · high	7.10 · high	24.10 · good	fair
Wed 08:00	0.88 · high	7.02 · high	24.10 · good	fair
Wed 09:00	0.88 · high	7.18 · high	24.20 · good	fair
Wed 10:00	0.88 · high	7.08 · high	24.20 · good	fair
Wed 11:00	0.88 · high	7.22 · high	24.30 · good	fair
Wed 12:00	0.88 · high	7.51 · high	24.30 · good	fair
Wed 13:00	0.90 · high	7.59 · high	24.30 · good	fair
Wed 14:00	0.90 · high	8.04 · high	24.30 · good	fair
Wed 15:00	0.92 · high	8.12 · high	24.30 · good	fair
Wed 16:00	0.92 · high	7.11 · high	24.30 · good	fair
Wed 17:00	0.94 · high	6.95 · high	24.30 · good	fair
Wed 18:00	0.94 · high	6.25 · high	24.30 · good	poor
Wed 19:00	0.90 · high	5.92 · high	24.30 · good	poor
Wed 20:00	0.86 · high	5.50 · high	24.20 · good	poor
Wed 21:00	0.82 · high	5.05 · good	24.20 · good	poor
Wed 22:00	0.78 · high	4.89 · good	24.20 · good	poor
Wed 23:00	0.74 · high	4.66 · good	24.20 · good	poor
Thu 00:00	0.70 · high	4.63 · good	24.20 · good	poor
Thu 01:00	0.68 · high	4.41 · good	24.20 · good	poor
Thu 02:00	0.64 · high	4.27 · good	24.20 · good	poor
Thu 03:00	0.62 · high	4.36 · good	24.10 · good	poor
Thu 04:00	0.60 · high	4.41 · good	24.10 · good	good
Thu 05:00	0.60 · high	4.47 · good	24.20 · good	good
Thu 06:00	0.58 · high	4.70 · good	24.20 · good	good
Thu 07:00	0.58 · high	4.70 · good	24.20 · good	good
Thu 08:00	0.58 · high	5.11 · good	24.30 · good	good
Thu 09:00	0.58 · high	5.76 · high	24.40 · good	fair
Thu 10:00	0.60 · high	6.75 · high	24.40 · good	fair
Thu 11:00	0.62 · high	7.03 · high	24.50 · good	fair
Thu 12:00	0.64 · high	7.40 · high	24.50 · good	fair
Thu 13:00	0.66 · high	7.54 · high	24.50 · good	fair
Thu 14:00	0.68 · high	7.48 · high	24.50 · good	fair
Thu 15:00	0.70 · high	7.44 · high	24.50 · good	fair
Thu 16:00	0.72 · high	7.34 · high	24.50 · good	fair