Planting last autumn was wrecked by rain which also ruined the quality of the 2012 harvest. The UK had its second wettest year on record in 2012.
But while volumes are expected to be poor, farmers still hold out hope for better quality grain than last year.
"It is likely it will be a smaller crop than even last year but we are hoping it might be a [higher] quality crop," said James Mills, an advisor to the National Farmers' Union.
A survey conducted by the Home-Grown Cereals Authority (HGCA) has estimated that Britain's wheat harvest area is expected to be down 19% this year.
Traders estimate the drop in area is likely to cut the wheat crop to around 12 million tonnes, down from last season's 13.3 million and far below the record 17.2 million harvested in 2008.
A poor quality crop last year forced bread makers to rely heavily on imports with Germany the most important supplier. Bread brand Hovis, for example, had to abandon a pledge to use only British wheat and remove the Union flag from its packaging.
Britain is normally a net wheat exporter, shipping roughly 2.5 million tonnes a year to customers in countries such as Spain and the Netherlands, while importing about one million tonnes from sellers including Canada, France and Germany.
Rains turned trade on its head with imports in the first 11 months of the 2012/13 season (July/June) soaring to 2.68 million tonnes while exports sank to just 666,864 tonnes.