In September, Sitamarhi typically sees daytime highs of 31.9°C and overnight lows around 25.2°C. Compared to the annual average high of 30.4°C, September runs +1.5°C.
September in Sitamarhi averages a daytime high of 31.9°C and an overnight low of 25.2°C.
September runs +1.5°C compared to Sitamarhi's annual average high of 30.4°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 31.9°C and cooler evenings around 25.2°C.