Saturday, August 29, 2026 · Portugal
Sunrise and sunset times in Lisbon are computed astronomically from latitude 38.72° and longitude -9.14°, shown in WET (UTC+0) local time using the standard NOAA solar position algorithm.
The day length on 8/29/2026 in Lisbon is 13h 11m. This varies throughout the year — typically longest around the summer solstice (June 21 in the Northern Hemisphere, December 21 in the Southern) and shortest around the winter solstice.
Sunrise and sunset are defined as the moment the upper edge of the sun touches the horizon, accounting for atmospheric refraction. "Civil twilight" begins ~30 minutes before sunrise and ends ~30 minutes after sunset.