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 Corpach: The hottest months are usually July and August, with an average temperature of 12°C, while the coldest months are February and January, with an average of 3°C. The rainiest months in Corpach are October, December, January and November, with each month seeing an average of 226 mm of rainfall.