The new morning team will also include former 'Umagang Kay Ganda' host Andrei Felix, and Claudine Trillo.
Jarin-Bennett is joining the local CNN station after almost two decades of experience with CNN International.
His exit comes amid a larger shakeup in the management ranks at CNN Philippines.
His retirement takes effect September 30.
The partnership will see its news division, 9News, forming a solid union with CNN.