Matosinhos' winters are cool, with temperatures ranging from -3°C to 15°C in January and December. As spring arrives, temperatures gradually warm up, reaching averages of 13-15°C by March and April. Summer is mild to hot, with July being the warmest month, averaging 19°C, while August and September have similar conditions. Autumn brings a slight drop in temperature, but still pleasant, with October's average around 17°C. The cooler months, December and January, often see temperatures dip below freezing, making them stand out from the rest of the year.