Poloniny stargazing forecast — Saturday, August 15

NE Slovakia · Bortle 2 · 49.050, 22.350 · 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 0%.

Best observing window tonight

Sat 10:00 p.m. – Sun 7:00 a.m. (10h, 0% mean cloud)

Astronomical night: Sat 9:47 p.m. → Sun 7:24 a.m.
Moon: Waxing crescent · 7% illuminated
Mean cloud (during night): 0% (min 0%)

Site

Poloniny is a Carpathian primeval-beech UNESCO site in Slovakia's tri-border corner with Poland and Ukraine. It shares its dark-sky core with Bieszczady across the border.

Drive from Toronto: ≈ 3 h from Košice via the R4 and 559 to Nová Sedlica.

Best time of year: March–October; winter access is difficult on unploughed forest roads.

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 Poloniny: /sites/poloniny-dsp.txt
Structured site data: /sites/poloniny-dsp.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=poloniny-dsp updates continuously.