Visiting local bars in Deoghar is more fun when the weather is good. These rainfall averages and temperatures can help you decide the best time for bar-hopping. The hottest months are usually April and May, with an average temperature of 31°C, while the coldest months are January and December, with an average of 20°C. The rainiest months in Deoghar are July, August, September and June, with each month seeing an average of 288 mm of rainfall.