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

Snorkel in daylight, if possible in the morning before the wind picks up. Currents are often weaker near high slack tide. SnorkelForecast scores each daylight hour for Santorini.

What is the best tide for snorkeling?

High slack tide, within about an hour of the high-tide peak, often has weaker currents. Strong low tides and tidal flow near channels or headlands reduce the score.

MARINE REPORT / 72 HOURS

Santorini Snorkel Report Today

Greece · Updated Thu 20:26 (EEST) · Source: Snapshot

The skinny

Poor Data updated Thu 20:26 (EEST)

Santorini has no good model window later today. Check the three-day outlook and official beach advisories.

Right now (forecast)

Poor · 0.0/10

Thu 21:00 (EEST)

Later today

No fresh data for this period.

Next three days

Excellent · 7.6/10

Sun 10:00 (EEST)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 0.0/10

Best time: -

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good Tours & water activities

Sunrise

07:25

Sunset

18:42

Water

21.9°C

Max air

17.3°C

Sky

Clear

8% cloud

Good model window in the next 72 hours

Next good model window: Sun 08:00–18:00 (16% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Thursday

❌ Poor conditions

Main blocker: Waves

Friday

⚠️ Fair conditions

Main blocker: Waves

Saturday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

The next good model window starts at Sun 08:00 and lasts until 18:00.

Why this verdict

Main blockers across the next 72 hours:

Waves (59 hours)
Darkness (37 hours)
Wind (32 hours)

Jellyfish drift risk

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

Low · 20/100

Low peak drift risk around Fri 01:00.

water is warm enough for occasional jellyfish; 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.

Bookable snorkel tours near Santorini

Prices and availability from Viator. Check conditions before you book.

We may earn a commission at no extra cost to you.

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Sunset Sailing Catamaran Cruise in Santorini with BBQ and Drinks

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Santorini Sunset Luxury Sailing Catamaran Cruise with BBQ, drinks, transfer

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Santorini: Small Group Catamaran Cruise with BBQ Fish & Drinks

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Nearby alternatives in Greece

Naxos

80 km away

✅ Good

Paros

82 km away

✅ Good

Milos

101 km away

✅ Good

Crete

141 km away

✅ Good

Advanced forecast data

Viewing historical data

Sun 21:00 – Wed 21:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.34 around Mon 18:00; 0 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 0.42m to 1.5m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 5.66 to 8.22m/s).

Tides range from -0.54m to -0.45m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview

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 Poor ❌ Limited

Mon 05:00 Poor ❌ Limited

Mon 06:00 Poor ❌ Limited

Mon 07:00 Poor ❌ Limited

Mon 08:00 Poor ❌ Limited

Mon 09:00 Poor ❌ Limited

Mon 10:00 Poor ❌ Limited

Mon 11:00 Poor ❌ Limited

Mon 12:00 Poor ❌ Limited

Mon 13:00 Poor ❌ Limited

Mon 14:00 Poor ❌ Limited

Mon 15:00 Poor ❌ Limited

Mon 16:00 Poor ❌ Limited

Mon 17:00 Poor ❌ Limited

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 Poor ❌ Limited

Tue 05:00 Poor ❌ Limited

Tue 06:00 Poor ❌ Limited

Tue 07:00 Poor ❌ Limited

Tue 08:00 Fair ⚠️ Fair

Tue 09:00 Poor ❌ Limited

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 Poor ❌ Limited

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 Poor ❌ Limited

Wed 05:00 Poor ❌ Limited

Wed 06:00 Poor ❌ Limited

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

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 is better in daylight, so night hours score lower.

Detailed hourly data table

Time	Wave (m)	Wind (m/s)	Sea temp (°C)	Status
Sun 21:00	0.42 · high	5.85 · high	24.50 · good	Poor
Sun 22:00	0.46 · high	5.66 · high	24.50 · good	Poor
Sun 23:00	0.52 · high	5.83 · high	24.40 · good	Poor
Mon 00:00	0.56 · high	6.52 · high	24.40 · good	Poor
Mon 01:00	0.68 · high	6.82 · high	24.40 · good	Poor
Mon 02:00	0.78 · high	6.75 · high	24.40 · good	Poor
Mon 03:00	0.90 · high	6.69 · high	24.40 · good	Poor
Mon 04:00	0.98 · high	6.92 · high	24.40 · good	Poor
Mon 05:00	1.06 · high	7.14 · high	24.40 · good	Poor
Mon 06:00	1.14 · high	7.63 · high	24.40 · good	Poor
Mon 07:00	1.16 · high	7.62 · high	24.40 · good	Poor
Mon 08:00	1.20 · high	7.81 · high	24.40 · good	Poor
Mon 09:00	1.22 · high	8.11 · high	24.40 · good	Poor
Mon 10:00	1.24 · high	8.22 · high	24.40 · good	Poor
Mon 11:00	1.24 · high	8.22 · high	24.40 · good	Poor
Mon 12:00	1.26 · high	7.78 · high	24.40 · good	Poor
Mon 13:00	1.28 · high	7.88 · high	24.50 · good	Poor
Mon 14:00	1.38 · high	7.91 · high	24.50 · good	Poor
Mon 15:00	1.40 · high	7.96 · high	24.40 · good	Poor
Mon 16:00	1.42 · high	7.98 · high	24.40 · good	Poor
Mon 17:00	1.42 · high	8.06 · high	24.40 · good	Poor
Mon 18:00	1.46 · high	7.65 · high	24.40 · good	Poor
Mon 19:00	1.48 · high	7.63 · high	24.40 · good	Poor
Mon 20:00	1.50 · high	7.73 · high	24.30 · good	Poor
Mon 21:00	1.52 · high	7.61 · high	24.30 · good	Poor
Mon 22:00	1.48 · high	7.20 · high	24.30 · good	Poor
Mon 23:00	1.44 · high	6.84 · high	24.30 · good	Poor
Tue 00:00	1.40 · high	6.77 · high	24.30 · good	Poor
Tue 01:00	1.34 · high	6.63 · high	24.20 · good	Poor
Tue 02:00	1.30 · high	6.86 · high	24.20 · good	Poor
Tue 03:00	1.24 · high	7.20 · high	24.20 · good	Poor
Tue 04:00	1.22 · high	7.40 · high	24.20 · good	Poor
Tue 05:00	1.18 · high	7.61 · high	24.10 · good	Poor
Tue 06:00	1.16 · high	6.67 · high	24.10 · good	Poor
Tue 07:00	1.16 · high	6.87 · high	24.10 · good	Poor
Tue 08:00	1.18 · high	7.08 · high	24.10 · good	Fair
Tue 09:00	1.18 · high	7.60 · high	24.10 · good	Poor
Tue 10:00	1.18 · high	7.76 · high	24.10 · good	Poor
Tue 11:00	1.18 · high	7.93 · high	24.10 · good	Poor
Tue 12:00	1.18 · high	8.20 · high	24.10 · good	Poor
Tue 13:00	1.18 · high	8.10 · high	24.10 · good	Poor
Tue 14:00	1.20 · high	7.98 · high	24.10 · good	Poor
Tue 15:00	1.10 · high	8.20 · high	23.90 · good	Poor
Tue 16:00	1.16 · high	8.25 · high	23.90 · good	Poor
Tue 17:00	1.22 · high	8.30 · high	23.90 · good	Poor
Tue 18:00	1.10 · high	7.38 · high	23.90 · good	Poor
Tue 19:00	1.16 · high	7.40 · high	23.90 · good	Poor
Tue 20:00	1.24 · high	7.23 · high	23.90 · good	Poor
Tue 21:00	1.30 · high	7.01 · high	23.90 · good	Poor
Tue 22:00	1.34 · high	6.77 · high	23.90 · good	Poor
Tue 23:00	1.36 · high	6.69 · high	23.80 · good	Poor
Wed 00:00	1.40 · high	6.65 · high	23.80 · good	Poor
Wed 01:00	1.42 · high	6.58 · high	23.80 · good	Poor
Wed 02:00	1.44 · high	6.74 · high	23.80 · good	Poor
Wed 03:00	1.46 · high	6.91 · high	23.80 · good	Poor
Wed 04:00	1.48 · high	6.87 · high	23.80 · good	Poor
Wed 05:00	1.48 · high	6.82 · high	23.70 · good	Poor
Wed 06:00	1.50 · high	7.11 · high	23.70 · good	Poor
Wed 07:00	1.54 · high	6.99 · high	23.70 · good	Poor
Wed 08:00	1.56 · high	7.20 · high	23.70 · good	Poor
Wed 09:00	1.60 · high	7.50 · high	23.70 · good	Poor
Wed 10:00	1.58 · high	7.34 · high	23.70 · good	Poor
Wed 11:00	1.58 · high	7.05 · high	23.70 · good	Poor
Wed 12:00	1.56 · high	6.89 · high	23.70 · good	Poor
Wed 13:00	1.52 · high	7.03 · high	23.70 · good	Poor
Wed 14:00	1.50 · high	7.20 · high	23.60 · good	Poor
Wed 15:00	1.46 · high	6.84 · high	23.60 · good	Poor
Wed 16:00	1.44 · high	6.53 · high	23.60 · good	Poor
Wed 17:00	1.42 · high	6.18 · high	23.60 · good	Fair
Wed 18:00	1.24 · high	6.73 · high	23.60 · good	Poor
Wed 19:00	1.18 · high	6.71 · high	23.60 · good	Poor
Wed 20:00	1.12 · high	6.53 · high	23.50 · good	Poor