Climate

Nantes boasts a mild climate; winters are mild and rainy, with hardly any snowfall and it is moderately warm in the summer. It is a wet city, so expect rain even in the driest months.
Here follows some data about the climate in Nantes, compared with Paris (you'll find out that Nantes isn't so terrible :) )

Data obtained from http://www.meteofrance.com/climat/comparateur