About Mariani, Assam's Climate & Weather History

Mariani is a city of approximately 23,600 people in Assam, India. Located in the India Standard Time zone at 26.7°N latitude.

In 2025, Mariani recorded an average annual temperature of 75°F. The hottest temperatures reached 98°F in July; the coolest were 50°F in December. Total precipitation for the year was 103 inches, with the wettest month being May.