Cap-aux-Meules: are you wondering about the weather you might find during your holiday? Befor organizing a holiday we always think about the wheather we might find when we get there. In Cap-aux-Meules the average yearly temperature is 6°C. During the hottest month, which in this case is August, the temperature can get up to 18°C and the temperature of the sea reaches 18°C. Instead the coldest month is February, reaching a minimum temperature of -3°C. Here instead the water temperature drops to -1°C.