If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Mohaan: The hottest months are usually May and June, with an average temperature of 28°C, while the coldest months are January and December, with an average of 15°C. The rainiest months in Mohaan are July, August, September and June, with each month seeing an average of 276 mm of rainfall.