During which winter feast did Jesus walk in Solomon's Colonnade in John 10?

Answer: The Feast of Dedication

It was the Feast of Dedication in Jerusalem, in winter, and Jesus was walking in the temple courts in Solomon's Colonnade.

“At that time the Feast of Dedication took place in Jerusalem. It was winter, and Jesus was walking in the temple courts in Solomon’s Colonnade.”— John 10:22-23 (BSB)