MARINE REPORT / 72 HOURS

Santorini Snorkel Report Today

Greece · Updated Fri 02:40 (EEST) · Source: Snapshot

The skinny

Marginal Data updated Fri 02:40 (EEST)

Santorini looks marginal today. The least-bad daylight window is around Fri 17:00, but waves is limiting the forecast.

Right now (forecast)

Poor · 0.0/10

Fri 05:00 (EEST)

Later today

Fair · 4.2/10

Fri 17:00 (EEST)

Next three days

Excellent · 7.7/10

Sun 13:00 (EEST)

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

Score: 4.2/10

Best time: Fri 17:00

Main risk: Waves

Best morning signal: Fri 09:00 (Fair).

Best afternoon signal: Fri 17:00 (Fair). Peak afternoon wind is about 6.1 m/s.

Email me when it is good Tours & water activities

Sunrise

07:26

Sunset

18:41

Water

21.8°C

Max air

19.9°C

Sky

Cloudy

77% 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

Friday

⚠️ Fair conditions

Main blocker: Waves

Saturday

⚠️ Fair conditions

Main blocker: Waves

Sunday

✅ Excellent conditions

Main blocker: Darkness

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 (51 hours)
  • Darkness (35 hours)
  • Wind (26 hours)

Jellyfish drift risk

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

Low · 20/100

Low drift risk now.

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.

Marvel and take photos next to the Red Beach Cliff . Drop anchor at Santorini's best! Our top-of-the-line Lagoon catamaran will take you to Red Beach.

Santorini Classic Catamaran Cruise with BBQ, Drinks and Transfers

4.8/5 4254 reviews 5h
From USD 91.55 Check availability

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Half-Day Exclusive Catamaran Cruise in Santorini with Meal and Open Bar

Half-Day Exclusive Catamaran Cruise in Santorini with Meal and Open Bar

4.9/5 4551 reviews 5h
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Santorini Platinum Catamaran Cruise with Meal, BBQ and Open Bar

Santorini Platinum Catamaran Cruise with Meal, BBQ and Open Bar

4.9/5 1196 reviews 5h
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Sunset in Oia

Sunset Sailing Catamaran Cruise in Santorini with BBQ and Drinks

4.5/5 1231 reviews 5h
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Sailing in Santorini

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

4.8/5 1348 reviews 5h
From USD 125.88 Check availability

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Santorini: Small Group Catamaran Cruise with BBQ Fish & Drinks

Santorini: Small Group Catamaran Cruise with BBQ Fish & Drinks

4.9/5 75 reviews 5h
From USD 131.60 Check availability

Free cancellation available

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 05:00 – Wed 05:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.43 around Sun 19:00; 4 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 0.74m to 0.94m).

Wind is at or below 5.4m/s in 18/24 sampled hours (range 2.4 to 6.49m/s).

Tides range from -0.56m to -0.49m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
Poor ❌ Limited
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Poor ❌ Limited
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 05:00 0.76 · high 4.40 · good 24.50 · good Poor
Sun 06:00 0.78 · high 4.39 · good 24.50 · good Poor
Sun 07:00 0.78 · high 4.58 · good 24.50 · good Poor
Sun 08:00 0.76 · high 5.05 · good 24.50 · good Poor
Sun 09:00 0.76 · high 5.95 · high 24.50 · good Poor
Sun 10:00 0.76 · high 6.31 · high 24.50 · good Poor
Sun 11:00 0.74 · high 6.49 · high 24.60 · good Poor
Sun 12:00 0.74 · high 5.74 · high 24.60 · good Poor
Sun 13:00 0.74 · high 5.74 · high 24.70 · good Poor
Sun 14:00 0.76 · high 5.55 · high 24.60 · good Poor
Sun 15:00 0.76 · high 5.32 · good 24.60 · good Poor
Sun 16:00 0.76 · high 5.24 · good 24.60 · good Fair
Sun 17:00 0.78 · high 5.26 · good 24.60 · good Fair
Sun 18:00 0.78 · high 5.19 · good 24.60 · good Fair
Sun 19:00 0.92 · high 4.78 · good 24.50 · good Fair
Sun 20:00 0.94 · high 3.77 · good 24.50 · good Poor
Sun 21:00 0.94 · high 3.36 · good 24.50 · good Poor
Sun 22:00 0.94 · high 2.88 · good 24.50 · good Poor
Sun 23:00 0.94 · high 2.40 · good 24.50 · good Poor
Mon 00:00 0.94 · high 2.55 · good 24.50 · good Poor
Mon 01:00 0.94 · high 2.86 · good 24.50 · good Poor
Mon 02:00 0.92 · high 3.44 · good 24.50 · good Poor
Mon 03:00 0.92 · high 3.69 · good 24.50 · good Poor
Mon 04:00 0.92 · high 3.54 · good 24.50 · good Poor
Mon 05:00 0.92 · high 3.11 · good 24.40 · good Poor
Mon 06:00 0.92 · high 4.14 · good 24.40 · good Poor
Mon 07:00 0.94 · high 3.70 · good 24.40 · good Poor
Mon 08:00 0.94 · high 3.48 · good 24.40 · good Fair
Mon 09:00 0.96 · high 4.62 · good 24.40 · good Fair
Mon 10:00 0.96 · high 5.02 · good 24.40 · good Fair
Mon 11:00 0.98 · high 5.47 · high 24.50 · good Fair
Mon 12:00 0.98 · high 5.75 · high 24.50 · good Poor
Mon 13:00 0.96 · high 5.82 · high 24.60 · good Poor
Mon 14:00 1.02 · high 5.95 · high 24.60 · good Poor
Mon 15:00 1.02 · high 5.61 · high 24.60 · good Fair
Mon 16:00 1.00 · high 5.39 · good 24.60 · good Fair
Mon 17:00 1.00 · high 5.08 · good 24.60 · good Fair
Mon 18:00 0.98 · high 5.00 · good 24.60 · good Fair
Mon 19:00 0.82 · high 3.32 · good 24.60 · good Fair
Mon 20:00 0.80 · high 2.76 · good 24.60 · good Poor
Mon 21:00 0.76 · high 2.48 · good 24.60 · good Poor
Mon 22:00 0.72 · high 2.27 · good 24.60 · good Poor
Mon 23:00 0.70 · high 2.27 · good 24.60 · good Poor
Tue 00:00 0.66 · high 2.34 · good 24.50 · good Poor
Tue 01:00 0.64 · high 2.42 · good 24.50 · good Poor
Tue 02:00 0.60 · high 2.44 · good 24.50 · good Poor
Tue 03:00 0.58 · high 2.44 · good 24.50 · good Poor
Tue 04:00 0.56 · high 2.33 · good 24.50 · good Poor
Tue 05:00 0.54 · high 2.01 · good 24.50 · good Poor
Tue 06:00 0.52 · high 1.84 · good 24.50 · good Poor
Tue 07:00 0.50 · high 3.26 · good 24.50 · good Poor
Tue 08:00 0.50 · high 1.49 · good 24.50 · good Good
Tue 09:00 0.48 · high 4.52 · good 24.50 · good Fair
Tue 10:00 0.46 · high 4.27 · good 24.50 · good Fair
Tue 11:00 0.46 · high 3.76 · good 24.50 · good Fair
Tue 12:00 0.44 · high 3.28 · good 24.60 · good Fair
Tue 13:00 0.42 · high 3.10 · good 24.60 · good Fair
Tue 14:00 0.40 · high 3.20 · good 24.80 · good Fair
Tue 15:00 0.38 · high 4.61 · good 24.80 · good Fair
Tue 16:00 0.38 · high 4.08 · good 24.80 · good Fair
Tue 17:00 0.36 · good 3.83 · good 24.80 · good Fair
Tue 18:00 0.36 · good 3.77 · good 24.80 · good Fair
Tue 19:00 0.36 · good 3.30 · good 24.80 · good Fair
Tue 20:00 0.32 · good 2.97 · good 24.80 · good Poor
Tue 21:00 0.34 · good 2.75 · good 24.80 · good Poor
Tue 22:00 0.36 · good 3.01 · good 24.80 · good Poor
Tue 23:00 0.40 · high 3.30 · good 24.70 · good Poor
Wed 00:00 0.42 · high 3.41 · good 24.70 · good Poor
Wed 01:00 0.42 · high 2.50 · good 24.70 · good Poor
Wed 02:00 0.40 · high 2.42 · good 24.70 · good Poor
Wed 03:00 0.40 · high 2.51 · good 24.70 · good Poor
Wed 04:00 0.44 · high 2.90 · good 24.70 · good Poor