weather in santiago, chile celsius
Santiago: Annual Weather Averages Santiago: Annual Weather Averages. January is the hottest month in Santiago with an average temperature of 21Â°C (69Â°F) and the coldest is June at 9Â°C (48Â°F) with the most daily sunshine hours at 11 in January. The wettest month is July with an average of 80mm of rain. Average Temperature: Santiago.