Narbonne's winters are mild, with temperatures rarely dropping below freezing and averaging around 7-11°C in January and February. Spring brings a steady warming trend, with April and May temperatures gradually rising to an average of 16°C by May. Summer is hot and dry, with July and August often seeing highs above 35°C, but nighttime lows remain relatively cool. Autumn is mild, similar to spring, with September and October temperatures averaging around 21-16°C. Winters are generally cooler than springs, with December being the coolest month, averaging just 9°C.