In October, the weather in Biên Hòa is typically hot. Average daily high temperature in October is about 31 degrees above zero. On average, Biên Hòa has 28 rainy, 1 sunny, 1 cloudy, and 1 partly cloudy day in October. The rains are usually heavy. October as well as April, May, June, and July is considered the most uncomfortable time to visit Biên Hòa.