Plenty of sunshine is helping Australia's northwest heat up to the forties and the centre of the country to the mid thirties each afternoon for at least a week, a near-record five-to-eight degrees above average. Much of the area is on target for its hottest April week in at least a decade with help from a break in the North Australian Monsoon. Marble Bar will average a maximum of almost 43 degrees from this Saturday to the following Friday, potentially its hottest April week in 116 years of records. The last time the Pilbara town averaged at least 42.5 degrees in an April week was in 1928, averaging 42.6. The previous hottest and also the record is 42.8 degrees in 1906. Other towns likely to experience an average a maximum of about 40 degrees over a week include Roebourne (about 42 degrees), Port Hedland (about 40) and Fitzroy Crossing (about 40). As heat travels further east and south it will lose some of its intensity, being nearer weak cooler changes. However, Uluru can still expect to have its hottest April week in at least a decade, averaging about 36 degrees. The last time an April week averaged at least 36 degrees at Uluru was in 2005, 36.87 degrees. Since records began in the 1960s Uluru's hottest April week was recorded in 1985, averaging 36.94 degrees. A significant cooler change is unlikely until at least 10 days into the month, the earliest a strong enough cold front will arrive. For southeastern Australia heating will be more gentle and brief, broken up by more frequent cooler changes. Heat should peak late this week, mid-next week and early the following week. This comes after a near-record warm March across much of the country despite a recent cooler spell.