Duzce's climate is characterized by mild winters, with temperatures often fluctuating between freezing and moderate levels. Spring brings gradual warming, with April being particularly pleasant as temperatures rise to averages of 12°C. Summer months are warm to hot, with July and August seeing the highest temperatures around 36°C and 39°C respectively. Autumn is generally cool, but not cold, with October experiencing a slight dip before November's temperatures begin to drop again. Winters can be chilly, especially in December, when temperatures sometimes fall below -11°C.