Triglav NP stargazing forecast — Saturday, August 15

Julian Alps, Slovenia · Bortle 3 · 46.380, 13.830 · Snapshot generated Sat, 15 Aug 2026 02:05:09 GMT

Excellent (High confidence)

10h of clear sky (≤30% cloud) during tonight's astronomical night, mean cloud 4%.

Best observing window tonight

Sat 11:00 p.m. – Sun 8:00 a.m. (10h, 4% mean cloud)

Astronomical night: Sat 10:14 p.m. → Sun 8:04 a.m.
Moon: Waxing crescent · 7% illuminated
Mean cloud (during night): 4% (min 0%)

Site

Triglav is Slovenia's only national park, covering the eastern Julian Alps. Strict sky-quality regulation and remote alpine valleys give surprisingly dark skies just 90 minutes from Ljubljana.

Drive from Toronto: ≈ 1.5 h from Ljubljana to Bohinj or the Soča Valley.

Best time of year: May–October for high valley access; winter observing possible from valley villages.

Open the live 48-hour forecast →

Citations & data sources

Open-Meteo Forecast API (cloud, humidity, wind, visibility)
Open-Meteo astronomical data (sunrise, sunset, moon)
Bortle scale reference for site darkness
Editorial guide for Triglav NP: /sites/triglav-np.txt
Structured site data: /sites/triglav-np.json
Live MCP server (AI agents): https://koohxdehsweadgdegrly.supabase.co/functions/v1/mcp

This is a build-time snapshot — the live forecast at https://ontarionightsky.com/?site=triglav-np updates continuously.