MARINE REPORT / 72 HOURS

Santorini Snorkel Report Today

Greece · Updated Thu 04:20 (EEST) · Source: Snapshot

The skinny

Marginal Data updated Thu 04:20 (EEST)

Santorini looks marginal today. The least-bad daylight window is around Thu 15:00, but waves is limiting the forecast.

Right now (forecast)

Poor · 0.0/10

Thu 04:00 (EEST)

Later today

Poor · 3.1/10

Thu 15:00 (EEST)

Next three days

Fair · 4.7/10

Sat 09:00 (EEST)

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

Score: 3.1/10

Best time: Thu 15:00

Main risk: Waves

Best morning signal: Thu 08:00 (Poor).

Best afternoon signal: Thu 15:00 (Poor). Peak afternoon wind is about 10.1 m/s.

Email me when it is good Tours & water activities

Sunrise

07:25

Sunset

18:42

Water

22.5°C

Max air

19.2°C

Sky

Cloudy

83% cloud

No good model 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

Thursday

❌ Poor conditions

Main blocker: Waves

Friday

⚠️ Fair conditions

Main blocker: Waves

Saturday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Sat 09:00: Fair (0.47) · still limited by waves, tide/current
  • Sat 08:00: Fair (0.46) · still limited by waves, tide/current
  • Fri 14:00: Fair (0.45) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (71 hours)
  • Wind (49 hours)
  • Tide/current (42 hours)

Jellyfish drift risk

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

Low · 26/100

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.

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Sunset in Oia

Sunset Sailing Catamaran Cruise in Santorini with BBQ and Drinks

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Sailing in Santorini

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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

❌ Poor

Paros

82 km away

❌ Poor

Milos

101 km away

✅ Good

Crete

141 km away

✅ Good

Advanced forecast data

Viewing historical data

Tue 04:00 – Fri 04:00 (EEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.54 around Tue 18:00; 11 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 0.9m).

Wind is at or below 5.4m/s in 22/24 sampled hours (range 0.4 to 5.81m/s).

Tides range from -0.48m to -0.39m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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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Fair ⚠️ Fair
Poor ❌ Limited
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Fair ⚠️ Fair
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
Tue 04:00 0.90 · high 0.40 · good 22.70 · good Poor
Tue 05:00 0.88 · high 1.06 · good 22.70 · good Poor
Tue 06:00 0.88 · high 1.36 · good 22.70 · good Poor
Tue 07:00 0.88 · high 1.49 · good 22.70 · good Poor
Tue 08:00 0.86 · high 1.71 · good 22.70 · good Fair
Tue 09:00 0.86 · high 2.02 · good 22.70 · good Fair
Tue 10:00 0.84 · high 2.09 · good 22.70 · good Fair
Tue 11:00 0.84 · high 2.11 · good 22.70 · good Fair
Tue 12:00 0.82 · high 1.12 · good 22.80 · good Fair
Tue 13:00 0.78 · high 1.50 · good 22.80 · good Fair
Tue 14:00 0.66 · high 1.04 · good 22.80 · good Fair
Tue 15:00 0.64 · high 1.40 · good 22.80 · good Fair
Tue 16:00 0.62 · high 1.70 · good 22.80 · good Fair
Tue 17:00 0.58 · high 2.70 · good 22.80 · good Fair
Tue 18:00 0.56 · high 2.61 · good 22.80 · good Fair
Tue 19:00 0.56 · high 1.22 · good 22.70 · good Poor
Tue 20:00 0.44 · high 5.02 · good 22.70 · good Poor
Tue 21:00 0.42 · high 4.77 · good 22.70 · good Poor
Tue 22:00 0.44 · high 5.33 · good 22.70 · good Poor
Tue 23:00 0.44 · high 5.00 · good 22.70 · good Poor
Wed 00:00 0.46 · high 5.05 · good 22.70 · good Poor
Wed 01:00 0.58 · high 5.66 · high 22.70 · good Poor
Wed 02:00 0.70 · high 5.81 · high 22.70 · good Poor
Wed 03:00 0.82 · high 5.35 · good 22.70 · good Poor
Wed 04:00 0.94 · high 5.42 · high 22.70 · good Poor
Wed 05:00 1.08 · high 5.43 · high 22.70 · good Poor
Wed 06:00 1.20 · high 5.43 · high 22.60 · good Poor
Wed 07:00 1.26 · high 5.77 · high 22.60 · good Poor
Wed 08:00 1.32 · high 5.10 · good 22.60 · good Fair
Wed 09:00 1.38 · high 5.42 · high 22.60 · good Poor
Wed 10:00 1.38 · high 5.92 · high 22.60 · good Poor
Wed 11:00 1.36 · high 6.67 · high 22.60 · good Poor
Wed 12:00 1.36 · high 3.52 · good 22.70 · good Fair
Wed 13:00 1.36 · high 3.13 · good 22.70 · good Fair
Wed 14:00 1.34 · high 3.45 · good 22.70 · good Fair
Wed 15:00 0.94 · high 3.44 · good 22.70 · good Fair
Wed 16:00 0.92 · high 3.47 · good 22.70 · good Poor
Wed 17:00 0.90 · high 6.70 · high 22.70 · good Poor
Wed 18:00 0.88 · high 7.83 · high 22.70 · good Poor
Wed 19:00 0.88 · high 7.30 · high 22.70 · good Poor
Wed 20:00 0.88 · high 8.00 · high 22.60 · good Poor
Wed 21:00 0.88 · high 8.53 · high 22.60 · good Poor
Wed 22:00 0.94 · high 9.14 · high 22.60 · good Poor
Wed 23:00 0.98 · high 9.44 · high 22.60 · good Poor
Thu 00:00 1.04 · high 8.94 · high 22.60 · good Poor
Thu 01:00 1.12 · high 8.59 · high 22.60 · good Poor
Thu 02:00 1.20 · high 8.77 · high 22.60 · good Poor
Thu 03:00 1.96 · high 8.75 · high 22.60 · good Poor
Thu 04:00 2.04 · high 8.91 · high 22.60 · good Poor
Thu 05:00 2.12 · high 9.17 · high 22.60 · good Poor
Thu 06:00 2.20 · high 8.49 · high 22.50 · good Poor
Thu 07:00 2.22 · high 8.96 · high 22.50 · good Poor
Thu 08:00 2.26 · high 9.19 · high 22.50 · good Poor
Thu 09:00 2.28 · high 9.14 · high 22.50 · good Poor
Thu 10:00 2.26 · high 9.14 · high 22.50 · good Poor
Thu 11:00 2.26 · high 9.07 · high 22.50 · good Poor
Thu 12:00 2.24 · high 9.24 · high 22.50 · good Poor
Thu 13:00 2.18 · high 9.10 · high 22.50 · good Poor
Thu 14:00 1.96 · high 9.51 · high 22.40 · good Poor
Thu 15:00 1.96 · high 9.58 · high 22.40 · good Poor
Thu 16:00 1.96 · high 9.29 · high 22.40 · good Poor
Thu 17:00 1.94 · high 8.78 · high 22.40 · good Poor
Thu 18:00 1.94 · high 8.71 · high 22.40 · good Poor
Thu 19:00 1.90 · high 8.66 · high 22.40 · good Poor
Thu 20:00 1.82 · high 7.69 · high 22.40 · good Poor
Thu 21:00 1.76 · high 7.50 · high 22.40 · good Poor
Thu 22:00 1.68 · high 6.99 · high 22.40 · good Poor
Thu 23:00 1.60 · high 6.37 · high 22.40 · good Poor
Fri 00:00 1.52 · high 6.37 · high 22.40 · good Poor
Fri 01:00 1.46 · high 6.41 · high 22.30 · good Poor
Fri 02:00 1.40 · high 6.36 · high 22.30 · good Poor
Fri 03:00 1.34 · high 5.99 · high 22.30 · good Poor