MARINE REPORT / 72 HOURS

Piran Snorkel Report Today

Slovenia · Updated Sat 05:35 (CEST) · Source: Snapshot

The skinny

Go in the best window Data updated Sat 05:35 (CEST)

Piran has a usable snorkeling window around Sat 09:00. The main thing to watch is tide/current.

Right now (forecast)

Excellent · 7.9/10

Sat 08:00 (CEST)

Later today

Excellent · 8.8/10

Sat 17:00 (CEST)

Next three days

Excellent · 9.4/10

Mon 18:00 (CEST)

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

Score: 8.8/10

Best time: Sat 09:00

Main risk: Tide/Current

Best morning signal: Sat 10:00 (Excellent).

Best afternoon signal: Sat 17:00 (Excellent). Peak afternoon wind is about 2.2 m/s.

Email me when it is good

Sunrise

07:24

Sunset

18:17

Water

22.2°C

Max air

19.6°C

Sky

Cloudy

100% cloud

Good model window in the next 72 hours

Next good model window: Sat 09:00–18:00 (47% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Saturday

✅ Excellent conditions

Main blocker: Tide/current

Sunday

✅ Excellent conditions

Main blocker: Darkness

Monday

✅ Excellent conditions

Main blocker: Darkness

Best available hours

The next good model window starts at Sat 09:00 and lasts until 18:00.

Why this verdict

Main blockers across the next 72 hours:

  • Darkness (36 hours)
  • Tide/current (17 hours)

Jellyfish drift risk

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

Low · 20/100

Low peak drift risk around Sat 15:00.

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.

Upcoming high tides

Next early morning high tide: Mon 06:00

Sat 11:00, Mon 06:00, Mon 17:00

Nearby alternatives in Slovenia

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Mon 08:00 – Thu 08:00 (CEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.69 around Mon 15:00; 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.

22/24 sampled hours stay at or below 0.36m (range 0.22m to 0.38m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.71 to 5.07m/s).

Tides range from -0.87m to 0.11m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Good 🌟 Good
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Poor ❌ Limited
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Good 🌟 Good
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Excellent ✅ Excellent
Excellent ✅ Excellent
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Poor ❌ Limited
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Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Poor ❌ Limited
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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
Mon 08:00 0.30 · good 3.13 · good 22.60 · good Good
Mon 09:00 0.32 · good 3.89 · good 22.60 · good Good
Mon 10:00 0.34 · good 4.83 · good 22.70 · good Good
Mon 11:00 0.36 · good 4.27 · good 22.70 · good Good
Mon 12:00 0.36 · good 5.07 · good 22.80 · good Good
Mon 13:00 0.24 · good 4.57 · good 22.80 · good Good
Mon 14:00 0.22 · good 4.27 · good 22.70 · good Good
Mon 15:00 0.24 · good 4.48 · good 22.70 · good Good
Mon 16:00 0.26 · good 3.35 · good 22.70 · good Good
Mon 17:00 0.28 · good 3.70 · good 22.70 · good Good
Mon 18:00 0.32 · good 2.40 · good 22.70 · good Good
Mon 19:00 0.36 · good 1.77 · good 22.70 · good Poor
Mon 20:00 0.38 · high 1.91 · good 22.70 · good Poor
Mon 21:00 0.38 · high 2.01 · good 22.70 · good Poor
Mon 22:00 0.36 · good 2.00 · good 22.60 · good Poor
Mon 23:00 0.36 · good 1.91 · good 22.60 · good Poor
Tue 00:00 0.34 · good 1.92 · good 22.60 · good Poor
Tue 01:00 0.32 · good 1.71 · good 22.60 · good Poor
Tue 02:00 0.30 · good 2.00 · good 22.60 · good Poor
Tue 03:00 0.28 · good 2.00 · good 22.60 · good Poor
Tue 04:00 0.26 · good 2.21 · good 22.50 · good Poor
Tue 05:00 0.24 · good 2.09 · good 22.50 · good Poor
Tue 06:00 0.24 · good 2.04 · good 22.50 · good Poor
Tue 07:00 0.24 · good 1.81 · good 22.50 · good Poor
Tue 08:00 0.24 · good 1.84 · good 22.50 · good Good
Tue 09:00 0.26 · good 2.10 · good 22.50 · good Good
Tue 10:00 0.28 · good 2.55 · good 22.60 · good Good
Tue 11:00 0.30 · good 2.20 · good 22.60 · good Good
Tue 12:00 0.28 · good 3.09 · good 22.60 · good Good
Tue 13:00 0.20 · good 2.62 · good 22.60 · good Good
Tue 14:00 0.20 · good 2.02 · good 22.60 · good Good
Tue 15:00 0.18 · good 1.56 · good 22.60 · good Good
Tue 16:00 0.16 · good 1.71 · good 22.60 · good Excellent
Tue 17:00 0.14 · good 2.16 · good 22.60 · good Excellent
Tue 18:00 0.14 · good 1.88 · good 22.50 · good Excellent
Tue 19:00 0.22 · good 1.80 · good 22.50 · good Poor
Tue 20:00 0.26 · good 2.02 · good 22.50 · good Poor
Tue 21:00 0.30 · good 1.80 · good 22.50 · good Poor
Tue 22:00 0.34 · good 1.79 · good 22.50 · good Poor
Tue 23:00 0.38 · high 1.79 · good 22.50 · good Poor
Wed 00:00 0.36 · good 1.80 · good 22.50 · good Poor
Wed 01:00 0.34 · good 1.84 · good 22.40 · good Poor
Wed 02:00 0.32 · good 2.04 · good 22.40 · good Poor
Wed 03:00 0.28 · good 1.92 · good 22.40 · good Poor
Wed 04:00 0.26 · good 2.14 · good 22.40 · good Poor
Wed 05:00 0.22 · good 2.02 · good 22.40 · good Poor
Wed 06:00 0.20 · good 1.51 · good 22.40 · good Poor
Wed 07:00 0.16 · good 1.71 · good 22.40 · good Poor
Wed 08:00 0.14 · good 1.40 · good 22.40 · good Excellent
Wed 09:00 0.14 · good 1.51 · good 22.40 · good Excellent
Wed 10:00 0.12 · good 1.22 · good 22.40 · good Excellent
Wed 11:00 0.12 · good 1.10 · good 22.40 · good Excellent
Wed 12:00 0.10 · good 1.87 · good 22.40 · good Excellent
Wed 13:00 0.04 · good 2.15 · good 22.30 · good Excellent
Wed 14:00 0.04 · good 2.16 · good 22.30 · good Excellent
Wed 15:00 0.04 · good 2.11 · good 22.30 · good Excellent
Wed 16:00 0.02 · good 1.72 · good 22.30 · good Excellent
Wed 17:00 0.02 · good 1.17 · good 22.30 · good Excellent
Wed 18:00 0.02 · good 0.61 · good 22.30 · good Excellent
Wed 19:00 0.02 · good 1.03 · good 22.30 · good Poor
Wed 20:00 0.02 · good 0.70 · good 22.30 · good Poor
Wed 21:00 0.02 · good 1.39 · good 22.30 · good Poor
Wed 22:00 0.02 · good 1.25 · good 22.30 · good Poor
Wed 23:00 0.02 · good 1.56 · good 22.30 · good Poor
Thu 00:00 0.02 · good 1.22 · good 22.20 · good Poor
Thu 01:00 0.02 · good 1.00 · good 22.20 · good Poor
Thu 02:00 0.02 · good 0.99 · good 22.20 · good Poor
Thu 03:00 0.02 · good 1.06 · good 22.20 · good Poor
Thu 04:00 0.02 · good 1.22 · good 22.20 · good Poor
Thu 05:00 0.02 · good 1.42 · good 22.20 · good Poor
Thu 06:00 0.02 · good 1.17 · good 22.20 · good Poor
Thu 07:00 0.02 · good 1.26 · good 22.20 · good Poor