South Korea forecasts even more rain as emergency workers are still entrenched in a battle against floods and landslides that have killed at least 41 people.

The capital has been hit with the heaviest rain on record, which triggered a mudslide in a residential area of the city's south on Wednesday and killed 16 people.

Meanwhile, in the Chuncheon area, 75 kilometres (50 miles) to the east of the capital, another 13 people died of bad weather, after a hill gave way, causing more damages.

"We're worried that even a little bit more rain could cause further landslides because the soil is so wet now," said Cho Ju Young, head of the disaster management team at the Ministry of Knowledge Economy. "People need to keep watching the situation closely."

Almost 4,600 South Koreans were evacuated from flooded homes, said Kang Sun Mu, a spokesman at the Disaster & Safety Management Office, before adding that approximately 1,200 people were still sheltering in nearby churches, schools and buildings.

The rest of the country has also been affected by the floods as, as much as 645 hectares (1,600 acres) of farmland was flooded, according to Kang, while the Ministry of Knowledge Economy said there were 86 power outages across the country.

Also, according to the weather bureau, South Korea has received at least 60 percent more rain this month than of the same period in July last year.

Here we have some images of the rain hammering caused to the people of South Korea: