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 Jorhat: The hottest months are usually August and June, with an average temperature of 28°C, while the coldest months are January and December, with an average of 19°C. The rainiest months in Jorhat are July, June, August and September, with each month seeing an average of 481 mm of rainfall.