The Association of Christian Counsellors said clergy should anticipate the phenomena, which culminates in what has been dubbed Divorce Day - which falls on 8th January this year.
Vice chair, Sue Monckton-Rickett told Premier: "It is a fact; I think that lots of counselling agencies across the country in January do start to see people coming in - perhaps more than at any other time in the year - with relationship issues."
The Association encouraged church leaders to organise talks by experts and themed sermons which address relationship issues, in the months prior to Christmas.
Listing other ways churches can support couples facing difficult times, Sue Monckton-Rickett said: "Being there for people, listening to their pain, listening to their sadness, being practically very much on the ground, trying to help people, sign-posting them to where they get other support."
Money pressures, long work hours, domestic duties, not spending enough time together and a lack of physical intimacy are among the issues most commonly-cited by couples seeking to split.
A poll of more than 2,000 British people by the legal firm Slater and Gordon found financial strains could drive one in ten married couples to split this year.
Click here to listen to Premier's Marcus Jones speaking with Sue Monckton-Rickett at the Association of Christian Counsellors: