Latitude & Daylight at London
London sits at latitude 51.5°. At this latitude, daylight varies from approximately 16.4h in summer (solstice) to 16.4h in winter — a seasonal swing of 0.0h. The sun reaches a maximum altitude of 61.9° at summer solstice and a minimum of 15.1° at winter solstice. This high-latitude profile is what shapes London's unique sunrise, sunset, and golden hour patterns year-round.
NOAA Solar Position Calculator