1 appliance from Freshwater was mobilised to the scene between Lane’s End and Hurst Point in Totland at just before 11:15.
A discarded bbq, which was still burning when firefighters arrived, has been blamed for causing the incident.
Rubbish was also found in the area – including alcohol – suggesting a group of people had been present.
Hampshire & Isle of Wight Fire and Rescue Service is reminding Islanders to refrain from lighting fires of any kind in the countryside and to take any rubbish home.
A spokesperson from Freshwater Fire Station has said:
”In dry weather, with a bit of a breeze like today, this incident could easily have quickly spread destroying the countryside, wildlife, livestock and possibly even homes.
“Please look after our beautiful island”.