At least 41 people have been killed by floods and landslides in central Vietnam in recent weeks, officials say.
They say at least six other people are still missing across several provinces.
More than 30,000 hectares (74,000 acres) of newly-planted rice crops have been flooded out since the rains began in late November.
The coffee harvest in Vietnam's Central Highlands has been delayed. Weather forecasters are expecting more heavy rain over the coming days.
Among the worst-hit were the provinces of Khanh Hoa, Binh Dinh and Quang Ngai, officials said.
Heavy rains and landslides there have also damaged roads and bridges.
"The rains have weakened but the new danger now is landslides so we advise all travellers to take extra caution," a weather broadcaster in Khanh Hoa was quoted as saying by Reuters news agency.
Vietnam - which has a long coastline facing the South China Sea - is prone to heavy flooding and other natural disasters.
In November, at least 18 people were killed as Typhoon Kai Tak hit central provinces.
More than 60 people were killed when Typhoon Damrey struck the country in September.