Can you snorkel in Santorini today?

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

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

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 Santorini 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.

Santorini Snorkel Report Today

Greece · Updated Wed 06:20 (EEST) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Fri 04:32

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

Score: 4.6/10

Best time: Sat 07:00

Main risk: Waves

Best morning signal: Fri 07:00 (Fair).

Best afternoon signal: Fri 20:00 (Fair). Peak afternoon wind is about 8.6 m/s.

Email me when it is good

Sunrise

06:13

Sunset

20:35

Water

24.3°C

Max air

30.6°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

Friday

⚠️ fair conditions

Main blocker: Waves

Saturday

⚠️ fair conditions

Main blocker: Waves

Best available hours

Sat 04:00 — Fair (0.49) · still limited by waves, tide/current
Sat 05:00 — Fair (0.48) · still limited by waves, tide/current
Fri 04:00 — Fair (0.46) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

Waves (28 hours)
Tide/current (23 hours)
Wind (18 hours)

Jellyfish drift risk

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

Low · 31/100

Low peak drift risk around Fri 08:00.

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

Naxos

80 km away

❌ Poor

Paros

82 km away

❌ Poor

Milos

101 km away

❌ Poor

Crete

141 km away

✅ Good

Advanced forecast data

Viewing historical data

Sun 01:00 – Wed 01:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.56 around Sun 07:00; 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 0.56m to 0.7m).

Wind is at or below 5.4m/s in 15/24 sampled hours (range 2.98 to 7.7m/s).

Tides range from -0.47m to -0.4m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview

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 fair ⚠️ Fair

Sun 08:00 fair ⚠️ Fair

Sun 09:00 fair ⚠️ Fair

Sun 10:00 fair ⚠️ Fair

Sun 11:00 fair ⚠️ Fair

Sun 12:00 fair ⚠️ Fair

Sun 13:00 fair ⚠️ Fair

Sun 14:00 fair ⚠️ Fair

Sun 15:00 fair ⚠️ Fair

Sun 16:00 fair ⚠️ Fair

Sun 17:00 fair ⚠️ Fair

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 fair ⚠️ Fair

Mon 05:00 good 🌟 Good

Mon 06:00 good 🌟 Good

Mon 07:00 fair ⚠️ Fair

Mon 08:00 fair ⚠️ Fair

Mon 09:00 fair ⚠️ Fair

Mon 10:00 fair ⚠️ Fair

Mon 11:00 fair ⚠️ Fair

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

Tue 05:00 fair ⚠️ Fair

Tue 06:00 fair ⚠️ Fair

Tue 07:00 fair ⚠️ Fair

Tue 08:00 fair ⚠️ Fair

Tue 09:00 fair ⚠️ Fair

Tue 10:00 fair ⚠️ Fair

Tue 11:00 fair ⚠️ Fair

Tue 12:00 fair ⚠️ Fair

Tue 13:00 fair ⚠️ Fair

Tue 14:00 fair ⚠️ Fair

Tue 15:00 poor ❌ Limited

Tue 16:00 fair ⚠️ Fair

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

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
Sun 01:00	0.66 · high	3.54 · good	24.40 · good	poor
Sun 02:00	0.66 · high	3.54 · good	24.40 · good	poor
Sun 03:00	0.66 · high	3.33 · good	24.40 · good	poor
Sun 04:00	0.66 · high	3.39 · good	24.30 · good	good
Sun 05:00	0.66 · high	3.39 · good	24.30 · good	good
Sun 06:00	0.66 · high	3.61 · good	24.30 · good	good
Sun 07:00	0.70 · high	4.39 · good	24.30 · good	fair
Sun 08:00	0.56 · high	6.51 · high	24.70 · good	fair
Sun 09:00	0.58 · high	6.98 · high	24.80 · good	fair
Sun 10:00	0.60 · high	7.50 · high	24.90 · good	fair
Sun 11:00	0.64 · high	7.70 · high	24.90 · good	fair
Sun 12:00	0.66 · high	7.49 · high	24.90 · good	fair
Sun 13:00	0.66 · high	7.41 · high	24.90 · good	fair
Sun 14:00	0.68 · high	7.26 · high	24.90 · good	fair
Sun 15:00	0.68 · high	6.98 · high	24.90 · good	fair
Sun 16:00	0.68 · high	6.26 · high	24.90 · good	fair
Sun 17:00	0.68 · high	4.72 · good	24.80 · good	fair
Sun 18:00	0.68 · high	3.36 · good	24.80 · good	poor
Sun 19:00	0.68 · high	2.98 · good	24.80 · good	poor
Sun 20:00	0.66 · high	3.35 · good	24.80 · good	poor
Sun 21:00	0.66 · high	3.72 · good	24.70 · good	poor
Sun 22:00	0.64 · high	3.69 · good	24.70 · good	poor
Sun 23:00	0.60 · high	3.80 · good	24.70 · good	poor
Mon 00:00	0.58 · high	3.91 · good	24.70 · good	poor
Mon 01:00	0.58 · high	3.68 · good	24.70 · good	poor
Mon 02:00	0.56 · high	3.82 · good	24.60 · good	poor
Mon 03:00	0.56 · high	3.75 · good	24.60 · good	poor
Mon 04:00	0.56 · high	3.75 · good	24.60 · good	fair
Mon 05:00	0.56 · high	3.84 · good	24.60 · good	good
Mon 06:00	0.56 · high	4.12 · good	24.60 · good	good
Mon 07:00	0.58 · high	5.48 · high	24.60 · good	fair
Mon 08:00	0.62 · high	6.36 · high	24.60 · good	fair
Mon 09:00	0.64 · high	6.62 · high	24.70 · good	fair
Mon 10:00	0.68 · high	7.12 · high	24.80 · good	fair
Mon 11:00	0.70 · high	7.78 · high	24.80 · good	fair
Mon 12:00	0.74 · high	7.69 · high	24.80 · good	fair
Mon 13:00	0.76 · high	7.62 · high	24.80 · good	fair
Mon 14:00	0.76 · high	7.01 · high	24.80 · good	fair
Mon 15:00	0.78 · high	6.43 · high	24.80 · good	fair
Mon 16:00	0.78 · high	5.54 · high	24.80 · good	fair
Mon 17:00	0.78 · high	4.34 · good	24.80 · good	fair
Mon 18:00	0.78 · high	4.29 · good	24.80 · good	poor
Mon 19:00	0.78 · high	4.02 · good	24.70 · good	poor
Mon 20:00	0.78 · high	3.98 · good	24.70 · good	poor
Mon 21:00	0.78 · high	3.91 · good	24.70 · good	poor
Mon 22:00	0.80 · high	3.52 · good	24.60 · good	poor
Mon 23:00	0.84 · high	3.62 · good	24.60 · good	poor
Tue 00:00	0.86 · high	4.07 · good	24.60 · good	poor
Tue 01:00	0.86 · high	4.70 · good	24.50 · good	poor
Tue 02:00	0.86 · high	4.61 · good	24.50 · good	poor
Tue 03:00	0.86 · high	4.66 · good	24.50 · good	poor
Tue 04:00	0.88 · high	4.33 · good	24.50 · good	fair
Tue 05:00	0.90 · high	4.11 · good	24.40 · good	fair
Tue 06:00	0.92 · high	5.79 · high	24.40 · good	fair
Tue 07:00	0.94 · high	6.55 · high	24.40 · good	fair
Tue 08:00	0.94 · high	7.01 · high	24.40 · good	fair
Tue 09:00	0.96 · high	7.18 · high	24.40 · good	fair
Tue 10:00	0.98 · high	7.43 · high	24.50 · good	fair
Tue 11:00	0.98 · high	7.73 · high	24.50 · good	fair
Tue 12:00	1.00 · high	7.75 · high	24.50 · good	fair
Tue 13:00	1.02 · high	7.86 · high	24.50 · good	fair
Tue 14:00	1.04 · high	7.96 · high	24.50 · good	fair
Tue 15:00	1.06 · high	8.22 · high	24.40 · good	poor
Tue 16:00	1.08 · high	8.00 · high	24.40 · good	fair
Tue 17:00	1.08 · high	7.40 · high	24.40 · good	fair
Tue 18:00	1.10 · high	6.53 · high	24.40 · good	poor
Tue 19:00	1.10 · high	5.79 · high	24.40 · good	poor
Tue 20:00	1.08 · high	5.46 · high	24.30 · good	poor
Tue 21:00	1.08 · high	5.41 · high	24.30 · good	poor
Tue 22:00	1.08 · high	5.78 · high	24.30 · good	poor
Tue 23:00	1.06 · high	6.02 · high	24.20 · good	poor
Wed 00:00	1.06 · high	6.44 · high	24.20 · good	poor