James Van Der Beek's widow has posted an emotional tribute to her late husband, three months after the actor's death.

The Dawson's Creek star died of bowel cancer at the age of 48 in February, and Kimberly Van Der Beek wrote on Instagram on Tuesday that the "reality is settling in".

She described the "outpouring of support" she has received as "tremendous".

"Yesterday was three months since we lost @vanderjames," she said, while also sharing a carousel of family photographs. "To say I'm heartbroken is a severe understatement. Words just don't capture what grief is. The comforts of shock have worn off. The reality is settling in... and I miss him."

She continued: "We all miss him. Yet, there is a different kind of magic in the air. I feel him. I know him more deeply.