# Piran snorkeling forecast Piran has a usable snorkeling window around Sat 08:00. The main thing to watch is darkness. - Location: Piran, Slovenia - Timezone: Europe/Ljubljana - Valid period: next 72 hours from 2026-10-17T04:35:01.709247+02:00 - Verdict: Go in the best window - Score: 8.6/10 - Share of next 72h scored OK: 48% - Source: snapshot - Generated at: 2026-10-17T02:28:49.606748+02:00 - Conditions can change. HTML page: https://snorkelforecast.com/slovenia/piran/ - Forecast JSON: https://snorkelforecast.com/slovenia/piran/forecast.json - Sea temperature: https://snorkelforecast.com/slovenia/piran/sea-temperature/ - Sea temperature markdown: https://snorkelforecast.com/slovenia/piran/sea-temperature.md - History JSON: https://snorkelforecast.com/slovenia/piran/history.json - Embed widget: https://snorkelforecast.com/slovenia/piran/embed/sea-temperature/ - Current sea temperature: 22.2 °C (72.0 °F) - Baseline normal for month 10: 20.7 °C (69.3 °F) from 3 sample years - Sea temperature versus month 10 normal: +1.5 °C (+2.7 °F), warmer than the stored baseline - Scoring thresholds: waves <= 0.36 m, wind <= 5.4 m/s, current <= 0.36 m/s, water 20.6-30.4 °C. Forecast thresholds, not official safety limits. ## Next 24 hours | time | rating | score | ok | waves_m | wind_mps | sst_c | | --- | --- | --- | --- | --- | --- | --- | | 2026-10-17T05:00:00+02:00 | poor | 0.0 | no | 0.04 | 1.34 | 22.2 | | 2026-10-17T06:00:00+02:00 | poor | 0.0 | no | 0.04 | 1.35 | 22.2 | | 2026-10-17T07:00:00+02:00 | poor | 0.0 | no | 0.04 | 1.56 | 22.2 | | 2026-10-17T08:00:00+02:00 | excellent | 0.7843055555555555 | yes | 0.04 | 1.35 | 22.2 | | 2026-10-17T09:00:00+02:00 | excellent | 0.7891666666666667 | yes | 0.04 | 1.14 | 22.2 | | 2026-10-17T10:00:00+02:00 | excellent | 0.8598611111111111 | yes | 0.02 | 0.45 | 22.2 | | 2026-10-17T11:00:00+02:00 | excellent | 0.8556944444444444 | yes | 0.02 | 0.63 | 22.2 | | 2026-10-17T12:00:00+02:00 | excellent | 0.8395759259259259 | yes | 0.02 | 1.43 | 22.2 | | 2026-10-17T13:00:00+02:00 | excellent | 0.7747185185185185 | yes | 0.02 | 1.75 | 22.2 | | 2026-10-17T14:00:00+02:00 | excellent | 0.7633333333333333 | yes | 0.02 | 2.19 | 22.2 | | 2026-10-17T15:00:00+02:00 | excellent | 0.7665740740740741 | yes | 0.02 | 2.05 | 22.2 | | 2026-10-17T16:00:00+02:00 | excellent | 0.7730555555555555 | yes | 0.02 | 1.77 | 22.2 | | 2026-10-17T17:00:00+02:00 | excellent | 0.7721722222222221 | yes | 0.02 | 1.86 | 22.2 | | 2026-10-17T18:00:00+02:00 | excellent | 0.833787037037037 | yes | 0.02 | 1.22 | 22.2 | | 2026-10-17T19:00:00+02:00 | poor | 0.0 | no | 0.02 | 0.72 | 22.1 | | 2026-10-17T20:00:00+02:00 | poor | 0.0 | no | 0.02 | 1.53 | 22.1 | | 2026-10-17T21:00:00+02:00 | poor | 0.0 | no | 0.02 | 1.63 | 22.1 | | 2026-10-17T22:00:00+02:00 | poor | 0.0 | no | 0.02 | 1.49 | 22.1 | | 2026-10-17T23:00:00+02:00 | poor | 0.0 | no | 0.02 | 1.35 | 22.1 | | 2026-10-18T00:00:00+02:00 | poor | 0.0 | no | 0.02 | 1.58 | 22.1 | | 2026-10-18T01:00:00+02:00 | poor | 0.0 | no | 0.02 | 1.35 | 22.1 | | 2026-10-18T02:00:00+02:00 | poor | 0.0 | no | 0.02 | 1.56 | 22.1 | | 2026-10-18T03:00:00+02:00 | poor | 0.0 | no | 0.02 | 1.58 | 22.1 | | 2026-10-18T04:00:00+02:00 | poor | 0.0 | no | 0.02 | 1.43 | 22.1 |