In terms of precipitation, rainfall in Barisal ranges from 0.3 - 16.9 inches per month. July is typically the wettest month, when rainfall can reach 16.9 in. January is typically the driest time to visit Barisal when rainfall is around 0.3 in.
If weather is an important factor for your trip to Barisal, use this chart to help with planning. For those seeking warmer temperatures, May is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 66.2 F).