Punta Alta: 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 Punta Alta the average yearly temperature is 15°C. During the hottest month, which in this case is January, the temperature can get up to 23°C and the temperature of the sea reaches 22°C. Instead the coldest month is July, reaching a minimum temperature of 8°C. Here instead the water temperature drops to 8°C.