Sark stargazing forecast — Saturday, August 15

Channel Islands · Bortle 2 · 49.430, -2.360 · Snapshot generated Sat, 15 Aug 2026 02:05:09 GMT

Fair (Medium confidence)

Short 2h window, otherwise mean cloud 60%. Worth a look if you're nearby.

Best observing window tonight

Sat 10:00 p.m. – Sat 11:00 p.m. (2h, 0% mean cloud)

Astronomical night: Sat 9:26 p.m. → Sun 7:02 a.m.
Moon: Waxing crescent · 7% illuminated
Mean cloud (during night): 60% (min 0%)

Site

Sark was the world's first Dark Sky Island (2011). With no cars and no streetlights, the entire 5.5 km² island sits at Bortle 2 with sea horizons in every direction.

Drive from Toronto: Passenger ferry from Guernsey (~55 min) — the island itself has no cars.

Best time of year: September–March around new moon; the Channel Islands' Atlantic weather is best in autumn.

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 Sark: /sites/sark-dark-sky-island.txt
Structured site data: /sites/sark-dark-sky-island.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=sark-dark-sky-island updates continuously.