In April, the weather in Bandar Seri Begawan is typically hot. Average daily high temperature in April is about 28 degrees above zero. On average, Bandar Seri Begawan has 24 rainy, 3 cloudy, and 3 partly cloudy days in April. The rains are usually heavy. April as well as January, February, March, and May is considered the most uncomfortable time to visit Bandar Seri Begawan.