Villefranche-sur-Saone experiences a moderate climate with distinct seasonal variations. Winters are chilly, with temperatures often below freezing, averaging around 3-8°C in January and February. As spring approaches, temperatures rise gradually, reaching averages of 10-13°C by April and May. Summers are warm to hot, with July and August being the hottest months, averaging around 20°C. Autumn brings a return to milder temperatures, ranging from 6-12°C in November and December, before cooling down again for winter.