Panchagarh has tropical climate. Panchagarh is warm and temperate. In winter, there is much less rainfall than in summer. The climate here is classified as Cwa by the Köppen-Geiger system. The average temperature in Panchagarh is 24.3 °C. The rainfall here averages 2677 mm. The driest month is December, with 2 mm of rain. Most precipitation falls in July, with an average of 650 mm. August is the warmest month of the year. The temperature in August averages 28.3 °C. In January, the average temperature is 16.9 °C. It is the lowest average temperature of the whole year. There is a difference of 648 mm of precipitation between the driest and wettest months. The average temperatures vary during the year by 11.4 °C.

October – March
The mild winter starts from October to ends in March.

March – June
The hot and humid summer starts from March, and ends around June.

June – October
The humid and warm rainy monsoon starts from June until October.