Planning for the weather is a good way to make your trip to Fosdinovo relaxing and enjoyable, especially when you’re splurging. The hottest months are usually August and July with an average temp of 72°F, while the coldest months are January and February with an average of 48°F. The rainiest months in Fosdinovo are November, December, October, and February, with each month seeing an average of 7 inches of rainfall.