Most Revd Leo Cushley is on a trip with the charity SCIAF to see the damage caused by last month's heavy downpours.
Many crops have been destroyed by the disaster and there's a fear the 121,000 people left homeless could go hungry.
The Archbishop will travel with SCIAF's Director Alistair Dutton to see projects which help poor farmers to grow more food, earn an income and adapt to the effects of climate change.
Poor villagers who have lost their homes and crops will get the chance to speak to the clergyman.
He said: "The devastating floods in Malawi have sharply brought into focus the need for aid agencies such as SCIAF. Their response also reminds us of the excellent work the Catholic Church does all across the developing world.
"I'm therefore delighted to support SCIAF's work on the ground in Malawi as they bring help and hope to the most vulnerable in our global community".
Alistair Dutton added: "Climate change has dire consequences for some of the poorest people in the world. The floods in Malawi show the devastating effects of extreme weather on already vulnerable women and men.
"All over the world, droughts, erratic rain and extreme weather are making it extremely difficult for small-scale farmers to know when to plant and harvest their crops.
"The result is a terrible increase in hunger and poverty. In Malawi, we're working hard to help families to grow more food, cope with climate change and provide emergency aid to people affected by the floods.
"I am extremely grateful to Archbishop Cushley for taking time to come to Malawi and see our life-changing work with poor farmers first hand. I have no doubt that the Archbishop will see that we are really helping thousands of people to work their way out of poverty."