San Sebastián de los Reyes

Weather in San Sebastián de los Reyes today, September 16, 2026

San Sebastián de los Reyes starts September 16, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds. The morning sky stays heavily clouded, with cover near 69% around 11:00. Grey conditions set the early tone before any later change.

Temperatures climb from an overnight low near 18°C toward a daytime high of about 28°C. Relative humidity sits between 31% and 53%, reaching its peak around 11:00. Winds stay light, near 6.8 km/h by 20:00, so the day feels still more than breezy.

The afternoon keeps an overcast feel, as cloud reaches about 64% around 12:00. Outdoor plans may still want a flexible backup. Expect visibility near 42.7 km, with poorer spells close to 40.6 km. The sun rises at 08:02 and sets at 20:14, for a total of 12 hours 12 minutes of sunlight today.

The practical takeaway for San Sebastián de los Reyes is a bright September 16, 2026, ideal for outdoor errands before temperatures ease from about 28°C.