About Bihariganj, Bihar's Climate & Weather History

Bihariganj, in Bihar, India, is home to roughly 32,800 people in the India Standard Time zone at 25.7°N latitude.

In 2025, Bihariganj recorded an average annual temperature of 76°F. The hottest temperatures reached 98°F in May; the coolest were 47°F in January. Total precipitation for the year was 56 inches, with the wettest month being August.