MARINE REPORT / 72 HOURS

Piran Snorkel Report Today

Slovenia · Updated Sat 15:20 (CEST) · Source: Snapshot

The skinny

Go in the best window Data updated Sat 15:20 (CEST)

Piran has a usable snorkeling window around Sat 16:00. The main thing to watch is darkness.

Right now (forecast)

Excellent · 7.6/10

Sat 15:00 (CEST)

Later today

Excellent · 9.0/10

Sat 18:00 (CEST)

Next three days

Excellent · 9.1/10

Mon 18:00 (CEST)

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

Score: 9.0/10

Best time: Sat 16:00

Main risk: Darkness

No useful morning window is showing yet.

Best afternoon signal: Sat 18:00 (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

19.7°C

Sky

Cloudy

76% cloud

Good model window in the next 72 hours

Next good model window: Sat 16:00–18:00 (42% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Saturday

✅ Excellent conditions

Main blocker: Darkness

Sunday

✅ Excellent conditions

Main blocker: Darkness

Monday

✅ Excellent conditions

Main blocker: Darkness

Best available hours

The next good model window starts at Sat 16:00 and lasts until 18:00.

Why this verdict

Main blockers across the next 72 hours:

  • Darkness (39 hours)
  • Tide/current (18 hours)
  • Waves (2 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.

Upcoming high tides

Next early morning high tide: Sun 06:00

Sun 06:00, Mon 06:00, Tue 07:00

Nearby alternatives in Slovenia

No nearby alternatives available.

Advanced forecast data

Viewing historical data

Sun 15:00 – Wed 15:00 (CEST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.89 around Sun 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.

24/24 sampled hours stay at or below 0.36m (range 0.02m to 0.06m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.51 to 2.24m/s).

Tides range from -0.94m to -0.29m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
Poor ❌ Limited
Poor ❌ Limited
Excellent ✅ Excellent
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
Poor ❌ Limited
Poor ❌ Limited
Excellent ✅ Excellent
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
Poor ❌ Limited
Poor ❌ Limited
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
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
Sun 15:00 0.06 · good 2.14 · good 23.60 · good Excellent
Sun 16:00 0.06 · good 2.05 · good 23.60 · good Excellent
Sun 17:00 0.04 · good 1.91 · good 23.50 · good Excellent
Sun 18:00 0.04 · good 1.40 · good 23.50 · good Excellent
Sun 19:00 0.04 · good 0.51 · good 23.50 · good Poor
Sun 20:00 0.02 · good 1.44 · good 23.40 · good Poor
Sun 21:00 0.02 · good 2.06 · good 23.40 · good Poor
Sun 22:00 0.02 · good 2.01 · good 23.40 · good Poor
Sun 23:00 0.02 · good 1.96 · good 23.40 · good Poor
Mon 00:00 0.02 · good 1.73 · good 23.40 · good Poor
Mon 01:00 0.02 · good 1.87 · good 23.30 · good Poor
Mon 02:00 0.02 · good 1.90 · good 23.30 · good Poor
Mon 03:00 0.02 · good 1.90 · good 23.30 · good Poor
Mon 04:00 0.02 · good 1.87 · good 23.30 · good Poor
Mon 05:00 0.02 · good 2.24 · good 23.30 · good Poor
Mon 06:00 0.02 · good 2.09 · good 23.30 · good Poor
Mon 07:00 0.02 · good 2.21 · good 23.30 · good Poor
Mon 08:00 0.02 · good 2.04 · good 23.30 · good Excellent
Mon 09:00 0.02 · good 1.60 · good 23.30 · good Excellent
Mon 10:00 0.02 · good 1.02 · good 23.30 · good Excellent
Mon 11:00 0.02 · good 0.92 · good 23.30 · good Excellent
Mon 12:00 0.02 · good 0.61 · good 23.30 · good Excellent
Mon 13:00 0.02 · good 0.78 · good 23.40 · good Excellent
Mon 14:00 0.02 · good 1.28 · good 23.40 · good Excellent
Mon 15:00 0.02 · good 1.39 · good 23.40 · good Excellent
Mon 16:00 0.02 · good 1.34 · good 23.40 · good Excellent
Mon 17:00 0.02 · good 1.41 · good 23.40 · good Excellent
Mon 18:00 0.02 · good 1.08 · good 23.40 · good Excellent
Mon 19:00 0.02 · good 0.99 · good 23.30 · good Poor
Mon 20:00 0.02 · good 1.94 · good 23.30 · good Poor
Mon 21:00 0.02 · good 3.21 · good 23.30 · good Poor
Mon 22:00 0.04 · good 2.42 · good 23.30 · good Poor
Mon 23:00 0.04 · good 1.28 · good 23.30 · good Poor
Tue 00:00 0.08 · good 1.52 · good 23.30 · good Poor
Tue 01:00 0.12 · good 2.42 · good 23.20 · good Poor
Tue 02:00 0.16 · good 2.78 · good 23.20 · good Poor
Tue 03:00 0.16 · good 2.66 · good 23.20 · good Poor
Tue 04:00 0.14 · good 2.28 · good 23.20 · good Poor
Tue 05:00 0.14 · good 1.90 · good 23.20 · good Poor
Tue 06:00 0.14 · good 1.91 · good 23.20 · good Poor
Tue 07:00 0.16 · good 2.00 · good 23.20 · good Poor
Tue 08:00 0.16 · good 2.11 · good 23.20 · good Excellent
Tue 09:00 0.16 · good 2.16 · good 23.20 · good Excellent
Tue 10:00 0.16 · good 2.33 · good 23.20 · good Excellent
Tue 11:00 0.16 · good 2.48 · good 23.30 · good Excellent
Tue 12:00 0.14 · good 1.98 · good 23.40 · good Excellent
Tue 13:00 0.08 · good 1.22 · good 23.40 · good Excellent
Tue 14:00 0.08 · good 1.72 · good 23.40 · good Excellent
Tue 15:00 0.08 · good 2.21 · good 23.40 · good Excellent
Tue 16:00 0.06 · good 2.65 · good 23.40 · good Excellent
Tue 17:00 0.06 · good 2.62 · good 23.40 · good Excellent
Tue 18:00 0.06 · good 1.39 · good 23.40 · good Excellent
Tue 19:00 0.02 · good 0.94 · good 23.30 · good Poor
Tue 20:00 0.02 · good 1.66 · good 23.30 · good Poor
Tue 21:00 0.02 · good 2.19 · good 23.30 · good Poor
Tue 22:00 0.02 · good 2.19 · good 23.30 · good Poor
Tue 23:00 0.02 · good 2.15 · good 23.30 · good Poor
Wed 00:00 0.02 · good 1.93 · good 23.30 · good Poor
Wed 01:00 0.04 · good 1.88 · good 23.20 · good Poor
Wed 02:00 0.04 · good 1.84 · good 23.20 · good Poor
Wed 03:00 0.04 · good 1.84 · good 23.20 · good Poor
Wed 04:00 0.02 · good 1.88 · good 23.20 · good Poor
Wed 05:00 0.02 · good 1.72 · good 23.20 · good Poor
Wed 06:00 0.02 · good 2.10 · good 23.10 · good Poor
Wed 07:00 0.02 · good 2.15 · good 23.10 · good Poor
Wed 08:00 0.02 · good 2.20 · good 23.10 · good Excellent
Wed 09:00 0.02 · good 1.70 · good 23.10 · good Excellent
Wed 10:00 0.02 · good 0.85 · good 23.20 · good Excellent
Wed 11:00 0.02 · good 0.76 · good 23.20 · good Excellent
Wed 12:00 0.02 · good 1.46 · good 23.20 · good Excellent
Wed 13:00 0.06 · good 2.25 · good 23.10 · good Excellent
Wed 14:00 0.06 · good 2.12 · good 23.10 · good Excellent