2 months old This article is more than 2 months old Tasmania and South Australia also experiencing high temperatures and winds, with a fire at Lucindale a threat to lives and homes People dive into the sea from the pier at St Kilda beach. The hottest day in almost a year is forecast for Melbourne while NSW, Victoria and Tasmania will experience temperatures up to 15C above average. Photograph: Scott Barbour/Getty Images People dive into the sea from the pier at St Kilda beach. The hottest day in almost a year is forecast for Melbourne while NSW, Victoria and Tasmania will experience temperatures up to 15C above average. Photograph: Scott Barbour/Getty Images