Massive downpours have struck Guangdong province in recent days, triggering deluges that have claimed the lives of four people and forced the evacuation of more than 100,000.

The severe floods are virtually unheard of so early in the year even in lush, subtropical Guangdong, with one senior official linking them to worsening climate change.

AFP reporters in Shatang village on Wednesday saw staff and officials at a tourist resort taking advantage of a break in the rain to clear mud from the streets.

"The water has really risen over the last few days," said Liu Yongqi, 25, a general manager of a local homestay.

"The road was flooded and for five days we could only get to the rest of the village by small motorboat," she told AFP.

"Luckily we had enough supplies here anyway," she said, adding that the cleanup operation would take "another two or three days".

Chairs, toilet bowls and pieces of sheet metal lay strewn across a meadow nearby.

Some employees worked to fix a wooden yurt used for group meals, while others armed with brooms and wearing waterproof boots moved between holiday bungalows to clean up the mess.

"The damage is extensive," said Liu Shaofei, 53, Liu Yongqi's father and the other general manager.

"We're still making an estimate. But fortunately we're insured," he told AFP.

- More rain forecast -

Authorities have warned of more downpours across Guangdong from Wednesday evening until Friday.

Up to 240 millimetres (9.4 inches) of rain is expected in many areas, rising to as much as 300 millimetres in some places.

Officials also issued a warning over "rumours" that the deluges were causing supply shortages and price spikes for basic goods.

"In order to strengthen management of market prices during flood season... do not fabricate or spread information about price rises, tight supply lines or dramatic increases in market demand," Guangdong's market regulator said in a notice on Tuesday evening.

Guangdong is China's manufacturing heartland, home to around 127 million people.

Parts of the province have not seen such severe flooding so early in the year since records began in 1954, according to state media reports.

"Intensifying climate change" raised the likelihood of the kind of heavy rains not typically seen until the summer months, Yin Zhijie, the chief hydrology forecaster at the Ministry of Water Resources, told state-run China National Radio on Tuesday.

China is the biggest emitter of the greenhouse gases that contribute to climate change but has pledged to reduce emissions to net zero by 2060.