Weather will likely play an important role when you plan your trip to Williamnagar, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and March, with an average temperature of 24°C, while the coldest months are January and December, with an average of 18°C. The rainiest months in Williamnagar are May, June, July and April, with each month seeing an average of 525 mm of rainfall.