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 02:14

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

24.4°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 (30 hours)
Tide/current (24 hours)
Wind (20 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

Mon 23:00 – Thu 23:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.44 around Tue 08:00; 13 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 0.84m to 1.1m).

Wind is at or below 5.4m/s in 7/24 sampled hours (range 3.62 to 8.22m/s).

Tides range from -0.49m to -0.4m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview

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

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 poor ❌ Limited

Wed 08:00 poor ❌ Limited

Wed 09:00 poor ❌ Limited

Wed 10:00 poor ❌ Limited

Wed 11:00 poor ❌ Limited

Wed 12:00 poor ❌ Limited

Wed 13:00 poor ❌ Limited

Wed 14:00 poor ❌ Limited

Wed 15:00 poor ❌ Limited

Wed 16:00 poor ❌ Limited

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 fair ⚠️ Fair

Thu 05:00 fair ⚠️ Fair

Thu 06:00 fair ⚠️ Fair

Thu 07:00 fair ⚠️ Fair

Thu 08:00 fair ⚠️ Fair

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

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 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
Wed 01:00	1.08 · high	6.81 · high	24.20 · good	poor
Wed 02:00	1.08 · high	7.13 · high	24.20 · good	poor
Wed 03:00	1.10 · high	6.91 · high	24.20 · good	poor
Wed 04:00	1.12 · high	6.85 · high	24.20 · good	fair
Wed 05:00	1.14 · high	7.42 · high	24.20 · good	fair
Wed 06:00	1.16 · high	7.97 · high	24.20 · good	fair
Wed 07:00	1.14 · high	8.82 · high	24.40 · good	poor
Wed 08:00	1.18 · high	9.17 · high	24.40 · good	poor
Wed 09:00	1.20 · high	9.16 · high	24.40 · good	poor
Wed 10:00	1.22 · high	9.11 · high	24.50 · good	poor
Wed 11:00	1.26 · high	8.93 · high	24.50 · good	poor
Wed 12:00	1.28 · high	8.81 · high	24.50 · good	poor
Wed 13:00	1.24 · high	8.97 · high	24.50 · good	poor
Wed 14:00	1.22 · high	9.07 · high	24.50 · good	poor
Wed 15:00	1.18 · high	8.83 · high	24.50 · good	poor
Wed 16:00	1.14 · high	8.16 · high	24.50 · good	poor
Wed 17:00	1.12 · high	7.34 · high	24.50 · good	fair
Wed 18:00	1.08 · high	5.98 · high	24.50 · good	poor
Wed 19:00	1.06 · high	5.42 · high	24.50 · good	poor
Wed 20:00	1.02 · high	4.66 · good	24.40 · good	poor
Wed 21:00	1.00 · high	4.66 · good	24.40 · good	poor
Wed 22:00	0.98 · high	5.08 · good	24.40 · good	poor
Wed 23:00	0.98 · high	5.06 · good	24.40 · good	poor
Thu 00:00	0.96 · high	5.61 · high	24.40 · good	poor
Thu 01:00	0.96 · high	5.80 · high	24.40 · good	poor
Thu 02:00	0.96 · high	5.88 · high	24.30 · good	poor
Thu 03:00	0.96 · high	5.72 · high	24.30 · good	poor
Thu 04:00	0.98 · high	5.70 · high	24.30 · good	fair
Thu 05:00	1.00 · high	6.36 · high	24.30 · good	fair
Thu 06:00	1.02 · high	7.53 · high	24.30 · good	fair
Thu 07:00	1.02 · high	7.83 · high	24.30 · good	fair
Thu 08:00	1.02 · high	8.06 · high	24.30 · good	fair
Thu 09:00	1.02 · high	7.89 · high	24.40 · good	fair
Thu 10:00	1.02 · high	8.02 · high	24.40 · good	fair
Thu 11:00	1.02 · high	7.96 · high	24.40 · good	fair
Thu 12:00	1.02 · high	7.86 · high	24.50 · good	fair
Thu 13:00	1.02 · high	8.01 · high	24.50 · good	fair
Thu 14:00	1.02 · high	8.08 · high	24.50 · good	fair
Thu 15:00	1.02 · high	7.91 · high	24.50 · good	fair
Thu 16:00	1.04 · high	7.50 · high	24.50 · good	fair
Thu 17:00	1.04 · high	6.62 · high	24.50 · good	fair
Thu 18:00	1.06 · high	4.88 · good	24.50 · good	poor
Thu 19:00	1.08 · high	4.49 · good	24.50 · good	poor
Thu 20:00	1.12 · high	4.83 · good	24.50 · good	poor
Thu 21:00	1.14 · high	5.32 · good	24.50 · good	poor
Thu 22:00	1.12 · high	5.47 · high	24.40 · good	poor