The climate of Bong County is tropical, hot and humid. The temperature generally ranges from 65F to 85F. Based on the prevailing precipitation, two seasons are differentiated: rainy and dry. The rainy season lasts from mid-April to mid-October. The dry season begins in November and ends in April. However, with the planet experiencing climate change, a slight fluctuation in the timing of the seasons has been noticed.

Generally the wind blows from the Northeast during the dry season and from the Southwest during the rainy season. Wind mileage is normally greatest in the rainy season, sometimes bringing violent storms capable of destroying houses and crops. Bong County has a conventional type of rainfall of around 70 to 80 inches. Toward the interior, the rainfall decreases because the air loses moisture except for high areas where the air forces rise causing some relief rain.