Weather is probably a major factor when you plan your trip to Blausee-Mitholz, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August, with an average temperature of 12°C, while the coldest months are January and February, with an average of -4°C. The rainiest months in Blausee-Mitholz are May, July, June and August, with each month seeing an average of 241 mm of rainfall.