MARINE REPORT / 72 HOURS

Piran Snorkel Report Today

Slovenia · Updated Sun 07:16 (CEST) · Source: Snapshot

The skinny

Go in the best window Data updated Sun 07:16 (CEST)

Piran has a usable snorkeling window around Sun 09:00. The main thing to watch is darkness.

Right now (forecast)

Excellent · 8.5/10

Sun 08:00 (CEST)

Later today

Excellent · 9.1/10

Sun 11:00 (CEST)

Next three days

Excellent · 9.1/10

Sun 11:00 (CEST)

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

Score: 9.1/10

Best time: Sun 09:00

Main risk: Darkness

Best morning signal: Sun 11:00 (Excellent).

Best afternoon signal: Sun 18:00 (Excellent). Peak afternoon wind is about 2.5 m/s.

Email me when it is good

Sunrise

07:25

Sunset

18:15

Water

22.1°C

Max air

20.6°C

Sky

Partly cloudy

34% cloud

Good model window in the next 72 hours

Next good model window: Sun 09:00–18:00 (36% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Sunday

✅ Excellent conditions

Main blocker: Darkness

Monday

✅ Excellent conditions

Main blocker: Darkness

Tuesday

✅ Excellent conditions

Main blocker: Waves

Best available hours

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

Why this verdict

Main blockers across the next 72 hours:

  • Darkness (38 hours)
  • Waves (21 hours)
  • Tide/current (21 hours)

Jellyfish drift risk

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

Low · 20/100

Low peak drift risk around Sun 16:00.

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

Mon 06:00, Tue 07:00, Tue 19:00

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 0.87 around Mon 10:00; 13 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.

24/24 sampled hours stay at or below 0.36m (range 0.02m to 0.26m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.54 to 4.79m/s).

Tides range from -0.95m to -0.29m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Excellent ✅ Excellent
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 0.04 · good 1.43 · good 25.20 · good Excellent
Mon 09:00 0.04 · good 1.58 · good 25.20 · good Excellent
Mon 10:00 0.02 · good 1.92 · good 25.30 · good Excellent
Mon 11:00 0.02 · good 1.81 · good 25.30 · good Excellent
Mon 12:00 0.02 · good 1.92 · good 25.40 · good Excellent
Mon 13:00 0.04 · good 1.32 · good 25.50 · good Excellent
Mon 14:00 0.04 · good 1.21 · good 25.60 · good Excellent
Mon 15:00 0.04 · good 0.86 · good 25.60 · good Excellent
Mon 16:00 0.04 · good 0.54 · good 25.50 · good Excellent
Mon 17:00 0.10 · good 2.69 · good 25.50 · good Excellent
Mon 18:00 0.16 · good 4.07 · good 25.40 · good Good
Mon 19:00 0.20 · good 4.43 · good 25.40 · good Good
Mon 20:00 0.26 · good 4.39 · good 25.30 · good Poor
Mon 21:00 0.26 · good 4.25 · good 25.30 · good Poor
Mon 22:00 0.26 · good 3.85 · good 25.30 · good Poor
Mon 23:00 0.26 · good 3.49 · good 25.20 · good Poor
Tue 00:00 0.26 · good 3.28 · good 25.20 · good Poor
Tue 01:00 0.26 · good 3.28 · good 25.20 · good Poor
Tue 02:00 0.26 · good 3.19 · good 25.10 · good Poor
Tue 03:00 0.26 · good 4.79 · good 25.10 · good Poor
Tue 04:00 0.26 · good 3.62 · good 25.10 · good Poor
Tue 05:00 0.26 · good 2.66 · good 25.10 · good Poor
Tue 06:00 0.24 · good 2.55 · good 25.00 · good Poor
Tue 07:00 0.24 · good 2.34 · good 25.00 · good Good
Tue 08:00 0.22 · good 2.64 · good 25.00 · good Good
Tue 09:00 0.22 · good 2.14 · good 25.00 · good Good
Tue 10:00 0.22 · good 1.42 · good 25.10 · good Excellent
Tue 11:00 0.22 · good 0.64 · good 25.10 · good Excellent
Tue 12:00 0.20 · good 0.54 · good 25.10 · good Excellent
Tue 13:00 0.18 · good 1.40 · good 25.20 · good Excellent
Tue 14:00 0.14 · good 2.31 · good 25.10 · good Excellent
Tue 15:00 0.12 · good 3.01 · good 25.10 · good Excellent
Tue 16:00 0.12 · good 3.20 · good 25.10 · good Excellent
Tue 17:00 0.10 · good 3.10 · good 25.10 · good Excellent
Tue 18:00 0.10 · good 2.73 · good 25.10 · good Excellent
Tue 19:00 0.10 · good 1.99 · good 25.10 · good Excellent
Tue 20:00 0.08 · good 1.17 · good 25.10 · good Poor
Tue 21:00 0.08 · good 1.00 · good 25.00 · good Poor
Tue 22:00 0.06 · good 2.22 · good 25.00 · good Poor
Tue 23:00 0.06 · good 2.24 · good 25.00 · good Poor
Wed 00:00 0.10 · good 2.18 · good 24.90 · good Poor
Wed 01:00 0.14 · good 2.44 · good 24.90 · good Poor
Wed 02:00 0.18 · good 2.60 · good 24.90 · good Poor
Wed 03:00 0.20 · good 2.53 · good 24.80 · good Poor
Wed 04:00 0.20 · good 2.40 · good 24.80 · good Poor
Wed 05:00 0.22 · good 1.90 · good 24.80 · good Poor
Wed 06:00 0.22 · good 1.80 · good 24.80 · good Poor
Wed 07:00 0.20 · good 2.02 · good 24.70 · good Good
Wed 08:00 0.20 · good 2.00 · good 24.70 · good Good
Wed 09:00 0.18 · good 1.70 · good 24.70 · good Excellent
Wed 10:00 0.16 · good 1.36 · good 24.70 · good Excellent
Wed 11:00 0.14 · good 1.61 · good 24.80 · good Good
Wed 12:00 0.14 · good 0.57 · good 24.80 · good Excellent
Wed 13:00 0.08 · good 1.35 · good 24.80 · good Excellent
Wed 14:00 0.08 · good 1.84 · good 24.80 · good Excellent
Wed 15:00 0.08 · good 2.02 · good 24.80 · good Excellent
Wed 16:00 0.06 · good 1.91 · good 24.80 · good Excellent
Wed 17:00 0.06 · good 1.39 · good 24.80 · good Excellent
Wed 18:00 0.04 · good 1.12 · good 24.80 · good Excellent
Wed 19:00 0.04 · good 0.58 · good 24.80 · good Excellent
Wed 20:00 0.04 · good 1.14 · good 24.80 · good Poor
Wed 21:00 0.04 · good 1.77 · good 24.80 · good Poor
Wed 22:00 0.04 · good 2.22 · good 24.70 · good Poor
Wed 23:00 0.04 · good 2.24 · good 24.70 · good Poor
Thu 00:00 0.04 · good 2.28 · good 24.70 · good Poor
Thu 01:00 0.04 · good 2.73 · good 24.70 · good Poor
Thu 02:00 0.04 · good 2.46 · good 24.70 · good Poor
Thu 03:00 0.04 · good 2.46 · good 24.60 · good Poor
Thu 04:00 0.04 · good 2.46 · good 24.60 · good Poor
Thu 05:00 0.04 · good 2.06 · good 24.60 · good Poor
Thu 06:00 0.04 · good 2.37 · good 24.50 · good Poor
Thu 07:00 0.04 · good 1.80 · good 24.50 · good Excellent