Bongaigaon experiences a warm and humid climate year-round, with temperatures gradually increasing from the winter months of January and December, which see average temperatures ranging from 16-19°C. As spring arrives in March, temperatures rise significantly, averaging around 24°C, with April and May being the hottest months, reaching up to 35°C on occasion. Summer months from June to September are characterized by high temperatures, with July and August seeing an average of around 30°C, although humidity levels are relatively high during this time. Autumn brings a slight reprieve in temperature, averaging around 28°C in October, before dropping again in November and December.