Can you snorkel in Kos today?

Conditions look marginal right now — no clearly safe snorkeling window is forecast in Kos over the next 72 hours. Check the hourly table for the calmest period.

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 · Showing fallback/stale data

The skinny

Marginal Report Mon 23:39

Kos looks marginal today. The least-bad daylight window is around Tue 07:00, but waves is limiting the forecast.

Score: 5.2/10

Best time: Tue 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

06:06

Sunset

20:27

Water

27.1°C

Max air

29.5°C

Sky

Clear

0% cloud

No safe window in the next 72 hours

Use the best-available section for the least-bad times.

3-day planner Best available Show data

3-day planner

Tuesday

⚠️ fair conditions

Main blocker: Waves

Best available hours

Tue 04:00 — Fair (0.52) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

Waves (8 hours)
Tide/current (8 hours)
Darkness (7 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

❌ Poor

Naxos

171 km away

✅ Good

Santorini

172 km away

✅ Good

Advanced forecast data

Viewing historical data

Wed 20:00 – Sat 20:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.56 around Thu 09:00; 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.

0/24 sampled hours stay at or below 0.36m (range 0.58m to 0.86m).

Wind is at or below 5.4m/s in 12/24 sampled hours (range 4.27 to 7.54m/s).

Tides range from -0.41m to -0.26m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview

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

Thu 17:00 fair ⚠️ Fair

Thu 18:00 poor ❌ Limited

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 fair ⚠️ Fair

Fri 05:00 fair ⚠️ Fair

Fri 06:00 fair ⚠️ Fair

Fri 07:00 fair ⚠️ Fair

Fri 08:00 fair ⚠️ Fair

Fri 09:00 fair ⚠️ Fair

Fri 10:00 fair ⚠️ Fair

Fri 11:00 fair ⚠️ Fair

Fri 12:00 fair ⚠️ Fair

Fri 13:00 fair ⚠️ Fair

Fri 14:00 fair ⚠️ Fair

Fri 15:00 fair ⚠️ Fair

Fri 16:00 fair ⚠️ Fair

Fri 17:00 fair ⚠️ Fair

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 fair ⚠️ Fair

Sat 05:00 fair ⚠️ Fair

Sat 06:00 fair ⚠️ Fair

Sat 07:00 fair ⚠️ Fair

Sat 08:00 fair ⚠️ Fair

Sat 09:00 fair ⚠️ Fair

Sat 10:00 fair ⚠️ Fair

Sat 11:00 fair ⚠️ Fair

Sat 12:00 fair ⚠️ Fair

Sat 13:00 fair ⚠️ Fair

Sat 14:00 fair ⚠️ Fair

Sat 15:00 fair ⚠️ Fair

Sat 16:00 fair ⚠️ Fair

Sat 17:00 fair ⚠️ Fair

Sat 18:00 poor ❌ Limited

Sat 19:00 poor ❌ Limited

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 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
Thu 17:00	0.76 · high	7.25 · high	24.50 · good	fair
Thu 18:00	0.78 · high	6.80 · high	24.50 · good	poor
Thu 19:00	0.78 · high	5.54 · high	24.50 · good	poor
Thu 20:00	0.78 · high	5.30 · good	24.40 · good	poor
Thu 21:00	0.78 · high	5.44 · high	24.40 · good	poor
Thu 22:00	0.76 · high	4.91 · good	24.40 · good	poor
Thu 23:00	0.72 · high	4.77 · good	24.30 · good	poor
Fri 00:00	0.70 · high	4.63 · good	24.30 · good	poor
Fri 01:00	0.68 · high	4.63 · good	24.30 · good	poor
Fri 02:00	0.66 · high	4.63 · good	24.30 · good	poor
Fri 03:00	0.64 · high	4.60 · good	24.30 · good	poor
Fri 04:00	0.64 · high	4.55 · good	24.30 · good	fair
Fri 05:00	0.64 · high	4.64 · good	24.30 · good	fair
Fri 06:00	0.64 · high	4.84 · good	24.30 · good	fair
Fri 07:00	0.64 · high	4.89 · good	24.40 · good	fair
Fri 08:00	0.66 · high	5.32 · good	24.50 · good	fair
Fri 09:00	0.66 · high	5.60 · high	24.50 · good	fair
Fri 10:00	0.68 · high	6.66 · high	24.60 · good	fair
Fri 11:00	0.70 · high	7.16 · high	24.70 · good	fair
Fri 12:00	0.72 · high	7.45 · high	24.80 · good	fair
Fri 13:00	0.72 · high	7.53 · high	24.80 · good	fair
Fri 14:00	0.74 · high	7.76 · high	24.80 · good	fair
Fri 15:00	0.74 · high	7.42 · high	24.80 · good	fair
Fri 16:00	0.76 · high	7.04 · high	24.80 · good	fair
Fri 17:00	0.76 · high	6.97 · high	24.80 · good	fair
Fri 18:00	0.78 · high	6.04 · high	24.80 · good	poor
Fri 19:00	0.78 · high	5.52 · high	24.80 · good	poor
Fri 20:00	0.76 · high	5.30 · good	24.80 · good	poor
Fri 21:00	0.76 · high	4.60 · good	24.80 · good	poor
Fri 22:00	0.72 · high	4.58 · good	24.70 · good	poor
Fri 23:00	0.70 · high	4.44 · good	24.70 · good	poor
Sat 00:00	0.66 · high	4.30 · good	24.70 · good	poor
Sat 01:00	0.64 · high	4.21 · good	24.70 · good	poor
Sat 02:00	0.62 · high	4.29 · good	24.70 · good	poor
Sat 03:00	0.60 · high	4.34 · good	24.70 · good	poor
Sat 04:00	0.60 · high	4.34 · good	24.70 · good	fair
Sat 05:00	0.60 · high	4.63 · good	24.80 · good	fair
Sat 06:00	0.64 · high	4.83 · good	24.70 · good	fair
Sat 07:00	0.64 · high	5.33 · good	24.80 · good	fair
Sat 08:00	0.64 · high	4.96 · good	24.90 · good	fair
Sat 09:00	0.64 · high	4.77 · good	25.00 · good	fair
Sat 10:00	0.62 · high	5.41 · high	25.10 · good	fair
Sat 11:00	0.62 · high	5.33 · good	25.20 · good	fair
Sat 12:00	0.60 · high	5.33 · good	25.30 · good	fair
Sat 13:00	0.60 · high	5.30 · good	25.40 · good	fair
Sat 14:00	0.58 · high	5.22 · good	25.40 · good	fair
Sat 15:00	0.58 · high	4.83 · good	25.50 · good	fair
Sat 16:00	0.58 · high	4.38 · good	25.50 · good	fair
Sat 17:00	0.58 · high	4.00 · good	25.50 · good	fair
Sat 18:00	0.58 · high	3.53 · good	25.50 · good	poor
Sat 19:00	0.56 · high	3.30 · good	25.50 · good	poor