Planning for the weather is an important factor for making your trip to Pregnana Milanese a success, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 22°C, while the coldest months are January and December, with an average of 6°C. The rainiest months in Pregnana Milanese are November, May, August and October, with each month seeing an average of 178 mm of rainfall.