Lastovo stargazing forecast — Saturday, August 15

Best observing window tonight

Sat 10:00 p.m. – Sun 4:00 a.m. (7h, 3% mean cloud)

Astronomical night

Sat 9:55 p.m. → Sun 8:00 a.m.

Moon

Waxing crescent · 7% illuminated

Mean cloud (during night)

14%   (min 0%)

Site

Lastovo is a remote Adriatic archipelago protected as a nature park. It has the darkest sky in Croatia — Bortle 2 with a full sea horizon.

Drive from Toronto: Ferry ~5 h from Split or 3 h from Vela Luka on Korčula.

Best time of year: April–October when ferries run frequently; nights are warm and often cloudless in summer.

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 Lastovo: /sites/lastovo-nature-park.txt
• Structured site data: /sites/lastovo-nature-park.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=lastovo-nature-park updates continuously.