Alcohol consumption often leads to people spending too much time in the sun, with little regard for the need for sunscreen.

But researchers now say it can also massively increase a person's melanoma risk.

A German study that investigated the dual impact of alcohol and sun exposure found liquor increased not just the risk of sunburn but also the severity.

"Participants in the study each consumed three drinks before being exposed to UV light with the tests showing their skin burned faster," dermatologist Niyati Sharma said.

Another study found a 20 per cent increase in the risk of melanoma for those who drank liquor compared with those who don't drink alcohol regularly.

For those who drink the equivalent of five beers a day, the increase in risk climbs to 55 per cent.

Drinkers had lower levels of carotenoids - an antioxidant that protects against UV exposure - which Dr Sharma says is likely responsible for their increased vulnerability to the effects of the sun.

Studies have also found the risk of basal cell carcinoma and squamous cell carcinoma - the two most common types of skin cancer - is also heightened by alcohol consumption.

Dr Sharma says it is a timely prompt for Australians to get their skin checked.

The country has one of the highest melanoma rates in the world, with around 16,000 Australians diagnosed annually and an estimated 1300 dying from the disease each year.

"The onset of summer is a welcome reminder to us all of the dangers of melanoma and the need to be vigilant with sun protection and the monitoring of any areas of concern."

"Skin checks are vital in early detection of melanoma or other types of skin cancer."

Australian Associated Press