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 Aigen im Ennstal: The hottest months are usually July and August, with an average temperature of 14°C, while the coldest months are January and February, with an average of -2°C. The rainiest months in Aigen im Ennstal are July, May, August and June, with each month seeing an average of 210 mm of rainfall.