Mercantour stargazing forecast — Saturday, August 15

SE France / Ligurian Alps · Bortle 2 · 44.100, 7.150 · Snapshot generated Sat, 15 Aug 2026 02:05:09 GMT

No-go (High confidence)

Overcast: mean cloud 77%, minimum 54%. Sit this one out.

Best observing window tonight

No clear window of 2+ hours during tonight's astronomical night.

Astronomical night: Sat 10:36 p.m. → Sun 8:36 a.m.
Moon: Waxing crescent · 7% illuminated
Mean cloud (during night): 77% (min 54%)

Site

The Alpes Azur Mercantour Dark Sky Reserve is the closest pristine sky to the French Riviera — pristine Bortle 2 alpine terrain under 90 minutes from Nice.

Drive from Toronto: ≈ 1.5 h from Nice via the Vésubie or Tinée valleys.

Best time of year: June–September for accessible high roads; winter observing possible at lower 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 Mercantour: /sites/alpes-azur-mercantour-dsr.txt
Structured site data: /sites/alpes-azur-mercantour-dsr.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=alpes-azur-mercantour-dsr updates continuously.