If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Haliyal: The hottest months are usually April and March with an average temp of 81°F, while the coldest months are January and December with an average of 75°F. The rainiest months in Haliyal are July, June, August, and September, with each month seeing an average of 17 inches of rainfall.