If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Fuefuki: The hottest months are usually August and July, with an average temperature of 20°C, while the coldest months are January and February, with an average of 2°C. The rainiest months in Fuefuki are July, September, October and June, with each month seeing an average of 290 mm of rainfall.