Fire and Emergency received more than 40 calls on New Year's Eve, an increase on previous years.
Spokesperson Adrian Nacey said the main issue was fireworks causing vegetation to catch fire.
"So this has been a particularly busy night for us which is really disappointing - all of these fires are completely avoidable and it's just too hot, it's too dry and it's too windy for people to be setting off fireworks at this time of year.
"I think people perhaps don't understand the danger that these fireworks create and how difficult these fires can be to bring under control once they're started."
Smokey Bear says: "Only you can prevent forest fires."