Þingvellir stargazing forecast — Saturday, August 15

Best observing window tonight

Sat 10:00 p.m. – Sat 10:00 p.m. (1h, 7% mean cloud)

Astronomical night

Sat 9:42 p.m. → Sun 5:18 a.m.

Moon

Waxing crescent · 7% illuminated

Mean cloud (during night)

88%   (min 7%)

Site

Þingvellir is a UNESCO rift-valley park 45 minutes from Reykjavík — the closest true dark sky to Iceland's capital. Aurora on strong Kp nights reflects on Þingvallavatn lake.

Drive from Toronto: ≈ 45 min from Reykjavík via Route 36; part of the Golden Circle.

Best time of year: September–March for darkness and aurora; the midnight sun from May–July prevents any night observing.

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 Þingvellir: /sites/thingvellir-np.txt
• Structured site data: /sites/thingvellir-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=thingvellir-np updates continuously.