Total solar eclipse · 12 August 2026
Eight guides built on the same data as the app: the IGN verdict for 7,531 Spanish municipalities, contact times clipped to sunset, and the AEMET cloud record. Written to be checked, not skimmed.
The umbra enters Galicia at 20:27 CEST and leaves over the Balearics six minutes later. The 22 provincial capitals inside the band, and why Madrid misses by the width of a suburb.
Contact times for A Coruña, Burgos, Madrid and Palma, and why in 6,060 of 7,531 municipalities the Sun sets before the eclipse finishes.
The surviving sliver of Sun is still around 400 times brighter than a full Moon. No corona, no darkness, and the glasses stay on.
ISO 12312-2 filters pass 0.00004 to 0.0032 percent of visible light. When they come off, how to spot untested glasses, and what to do without any.
Azimuth 283 degrees, west-northwest, with the Sun 2 to 12 degrees up. At 2 degrees a 20 metre building blocks it from 573 metres away.
AEMET gives the Cantabrian coast 30 to 50 percent clear sky at eclipse hour against 50 to 70 percent inland, plus what wildfire smoke does to a low Sun.
400 to 600mm frames the whole corona. Exposure bracketing, filter timing, and an argument for not photographing your first eclipse at all.
Cádiz gets 2 minutes 54 seconds of totality on 2 August 2027 with the Sun high, then an annular eclipse crosses Spain and Portugal in January 2028.
The app answers that one question for any of 7,531 Spanish municipalities, with the IGN's own verdict, contact times to the second and a compass. It works with no signal.
Free · requires iOS 18 · works with no connection