June in Banjarmasin is the sunniest month of the year. In June, the weather in Banjarmasin is typically hot. Average daily high temperature in June is about 30 degrees above zero. On average, Banjarmasin has 18 rainy, 8 sunny, 3 partly cloudy, and 1 cloudy day in June. The rains are usually moderate. June as well as January, February, March, and April is considered the most uncomfortable time to visit Banjarmasin.