Visiting local bars in Asansol is better when you know what the weather holds. These temperatures and rainfall averages 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 21°C. The rainiest months in Asansol are July, August, September and June, with each month seeing an average of 289 mm of rainfall.