August in Tweed Heads is the sunniest month of the year. In August, the weather in Tweed Heads is typically warm. Average daily high temperature in August is about 19 degrees above zero. On average, Tweed Heads has 28 sunny, 2 rainy, and 1 partly cloudy day in August. The rains are usually heavy. August as well as September and October is considered the most comfortable time to visit Tweed Heads.