MARINE REPORT / 72 HOURS

Santorini Snorkel Report Today

Greece · Updated Fri 05:48 (EEST) · Source: Snapshot

The skinny

Marginal Data updated Fri 05:48 (EEST)

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

Right now (forecast)

Fair · 3.5/10

Fri 08:00 (EEST)

Later today

Fair · 4.3/10

Fri 17:00 (EEST)

Next three days

Excellent · 7.6/10

Sun 13:00 (EEST)

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

Score: 4.3/10

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 6.2 m/s.

Email me when it is good Tours & water activities

Sunrise

07:26

Sunset

18:41

Water

21.8°C

Max air

20.0°C

Sky

Partly cloudy

38% 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 (48 hours)
  • Darkness (36 hours)
  • Wind (22 hours)

Jellyfish drift risk

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

Low · 18/100

Low drift risk now.

water is warm enough for occasional jellyfish; 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
From USD 113.29 Check availability

Free cancellation available

Sunset in Oia

Sunset Sailing Catamaran Cruise in Santorini with BBQ and Drinks

4.5/5 1231 reviews 5h
From USD 85.83 Check availability

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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

Wed 08:00 – Sat 08:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.48 around Wed 14:00; 12 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 0.82m).

Wind is at or below 5.4m/s in 19/24 sampled hours (range 2.02 to 7.23m/s).

Tides range from -0.49m to -0.41m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
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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
Wed 08:00 0.54 · high 3.74 · good 24.80 · good Fair
Wed 09:00 0.56 · high 4.12 · good 24.80 · good Fair
Wed 10:00 0.56 · high 4.32 · good 24.80 · good Fair
Wed 11:00 0.58 · high 4.46 · good 24.80 · good Fair
Wed 12:00 0.58 · high 2.52 · good 24.90 · good Fair
Wed 13:00 0.60 · high 2.02 · good 24.90 · good Fair
Wed 14:00 0.50 · high 2.06 · good 25.00 · good Fair
Wed 15:00 0.50 · high 2.41 · good 25.00 · good Fair
Wed 16:00 0.50 · high 2.22 · good 25.00 · good Fair
Wed 17:00 0.52 · high 2.20 · good 25.00 · good Fair
Wed 18:00 0.46 · high 3.40 · good 24.90 · good Fair
Wed 19:00 0.44 · high 3.86 · good 24.90 · good Fair
Wed 20:00 0.44 · high 3.86 · good 24.90 · good Poor
Wed 21:00 0.42 · high 4.13 · good 24.90 · good Poor
Wed 22:00 0.44 · high 3.86 · good 24.90 · good Poor
Wed 23:00 0.44 · high 4.05 · good 24.90 · good Poor
Thu 00:00 0.46 · high 4.37 · good 24.90 · good Poor
Thu 01:00 0.46 · high 4.59 · good 24.80 · good Poor
Thu 02:00 0.48 · high 5.28 · good 24.80 · good Poor
Thu 03:00 0.48 · high 6.04 · high 24.80 · good Poor
Thu 04:00 0.56 · high 6.48 · high 24.80 · good Poor
Thu 05:00 0.64 · high 6.86 · high 24.80 · good Poor
Thu 06:00 0.72 · high 6.84 · high 24.80 · good Poor
Thu 07:00 0.82 · high 7.23 · high 24.70 · good Poor
Thu 08:00 0.92 · high 7.62 · high 24.70 · good Poor
Thu 09:00 1.02 · high 8.08 · high 24.70 · good Poor
Thu 10:00 1.00 · high 8.30 · high 24.70 · good Poor
Thu 11:00 1.00 · high 8.39 · high 24.80 · good Poor
Thu 12:00 0.98 · high 4.46 · good 24.80 · good Poor
Thu 13:00 0.96 · high 4.05 · good 24.80 · good Poor
Thu 14:00 0.96 · high 3.61 · good 24.90 · good Poor
Thu 15:00 0.98 · high 3.61 · good 24.90 · good Poor
Thu 16:00 1.00 · high 3.60 · good 24.90 · good Fair
Thu 17:00 1.00 · high 3.80 · good 24.90 · good Fair
Thu 18:00 1.02 · high 4.44 · good 24.80 · good Fair
Thu 19:00 1.00 · high 4.75 · good 24.80 · good Fair
Thu 20:00 1.18 · high 7.69 · high 24.80 · good Poor
Thu 21:00 1.18 · high 7.27 · high 24.80 · good Poor
Thu 22:00 1.16 · high 6.74 · high 24.80 · good Poor
Thu 23:00 1.14 · high 6.59 · high 24.80 · good Poor
Fri 00:00 1.12 · high 6.41 · high 24.70 · good Poor
Fri 01:00 1.10 · high 6.36 · high 24.70 · good Poor
Fri 02:00 1.06 · high 6.22 · high 24.70 · good Poor
Fri 03:00 1.04 · high 6.22 · high 24.70 · good Poor
Fri 04:00 1.02 · high 6.49 · high 24.70 · good Poor
Fri 05:00 1.00 · high 6.84 · high 24.70 · good Poor
Fri 06:00 0.98 · high 7.07 · high 24.70 · good Poor
Fri 07:00 0.98 · high 7.32 · high 24.70 · good Poor
Fri 08:00 0.98 · high 7.59 · high 24.70 · good Poor
Fri 09:00 0.98 · high 7.98 · high 24.70 · good Poor
Fri 10:00 1.00 · high 7.79 · high 24.70 · good Poor
Fri 11:00 1.00 · high 7.43 · high 24.70 · good Poor
Fri 12:00 1.02 · high 8.35 · high 24.80 · good Poor
Fri 13:00 1.02 · high 8.67 · high 24.80 · good Poor
Fri 14:00 1.08 · high 8.77 · high 24.70 · good Poor
Fri 15:00 1.08 · high 8.45 · high 24.70 · good Poor
Fri 16:00 1.04 · high 8.18 · high 24.70 · good Poor
Fri 17:00 1.02 · high 7.75 · high 24.70 · good Fair
Fri 18:00 0.98 · high 7.16 · high 24.70 · good Fair
Fri 19:00 0.94 · high 6.14 · high 24.70 · good Fair
Fri 20:00 0.92 · high 4.88 · good 24.70 · good Poor
Fri 21:00 0.88 · high 4.07 · good 24.70 · good Poor
Fri 22:00 0.82 · high 3.36 · good 24.70 · good Poor
Fri 23:00 0.78 · high 3.06 · good 24.60 · good Poor
Sat 00:00 0.72 · high 3.40 · good 24.60 · good Poor
Sat 01:00 0.70 · high 4.33 · good 24.60 · good Poor
Sat 02:00 0.70 · high 4.88 · good 24.60 · good Poor
Sat 03:00 0.68 · high 5.23 · good 24.60 · good Poor
Sat 04:00 0.70 · high 5.02 · good 24.60 · good Poor
Sat 05:00 0.70 · high 4.47 · good 24.60 · good Poor
Sat 06:00 0.72 · high 4.05 · good 24.60 · good Poor
Sat 07:00 0.70 · high 3.92 · good 24.60 · good Poor