February in Blackheath is the rainiest and the cloudiest month of the year. In February, the weather in Blackheath is typically warm. Average daily high temperature in February is about 23 degrees above zero. On average, Blackheath has 16 rainy, 9 sunny, and 4 partly cloudy days in February. The rains are usually heavy. February as well as June is considered the most uncomfortable time to visit Blackheath.