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 Nassereith: The hottest months are usually August and July, with an average temperature of 8°C, while the coldest months are January and February, with an average of -7°C. The rainiest months in Nassereith are June, August, July and May, with each month seeing an average of 263 mm of rainfall.