Dunkerque's climate is quite varied throughout the year, with cold winters and mild summers. In winter, temperatures often drop below freezing, averaging around 4°C in January and February, but can occasionally reach as high as 18°C. As spring approaches, temperatures gradually warm up, reaching an average of 7°C by March and 11°C by May. Summers are generally cool to mild, with highs rarely exceeding 29°C, while autumns are marked by a gentle decline in temperature, averaging around 8°C in November before dropping again in winter. Overall, Dunkerque's climate is quite moderate, but the temperatures can fluctuate significantly from month to month.