The best time to visit West Champaran is from October to March, during the winters, when the temperature is not too extreme.
From the month of April to June West Champaran experiences a fluctuating summer. The temperature ranges from a minimum of 28 degree Celsius to a maximum of 45 degree Celsius.
West Champaran gets heavy rains from the month of July to September.
From the month of November the winters start at West Champaran. The winter temperature ranges between 12°C to 30°C . Winters bid adieu in the month of February.