If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Shimoga: 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 Shimoga are July, June, August, and September, with each month seeing an average of 8 inches of rainfall.