The best season to enjoy East Champaran vacation is during winter season in months of October to March. This time is really perfect for exploring the destination. Summer lasts in East Champaran between April and June with an average temperature 26°C to 44°C. Monsoon Season starts in East Champaran in July and continues till September with regular rainfall. Winter arrives in November and remains till February where average temperature remains between 16°C and 28°C making the weather pleasant. This is the best time for East Champaran travel.