Daylight hours are dwindling and our first month of autumn is ending. But in many places, March felt a lot like summer. Get used to it: looking ahead, all indications are that future summers could be just like this one, or more extreme.Southeast Australia welcomed autumn with a persistent heat wave. For the first 12 days of autumn, temperatures were 6.9 degrees above normal across Tasmania and 6.8 degrees above normal in Victoria.Melbourne’s March record-breaking weather included nine days of temperatures of 32 degrees or above and its hottest overnight March temperature in 110 years of record keeping. Adelaide experienced ten such hot days.