Planning for the weather is an important factor for making your trip to Fontanella a success, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 13°C, while the coldest months are January and February, with an average of -3°C. The rainiest months in Fontanella are August, June, July and May, with each month seeing an average of 241 mm of rainfall.