Well-wishers gathered at the railway station from early morning, waving flags, wearing Union flag hats and hoping to catch a glimpse of the monarch as he arrived shortly after 10.30am.
The King stopped to shake hands, exchange a few words with residents and admire a corgi puppy brought along specially for the occasion.
The atmosphere was festive throughout as families, children and long-time royal supporters lined the route to welcome His Majesty.
Here are 19 photos capturing the royal visit as it unfolded:
5. Crowds greet King Charles III as he arrives in Lancashire on Royal Train
Crowds gathered early at Clitheroe railway station ahead of King Charles III’s arrival. | Paul Ellis/PA Wire
6. Crowds greet King Charles III as he arrives in Lancashire on Royal Train
A puppy is lifted up to meet the King, delighting the crowd. | Peter Byrne/PA Wire
7. Crowds greet King Charles III as he arrives in Lancashire on Royal Train
King Charles stops to chat with locals. | Paul Ellis/PA Wire
8. Crowds greet King Charles III as he arrives in Lancashire on Royal Train
A warm greeting from King Charles as he meets supporters face-to-face. | Kelvin Lister-Stuttard