May or June – The Battle of Richmond Hill takes place between the native Darug people and the New South Wales Corps.[1]
7 September – HMS Reliance arrives in Sydney. Among the ship's passengers and crew are the Aboriginal Bennelong returning from a visit to England, the surgeon and explorer George Bass, and midshipman Matthew Flinders.
11 September – Floods devastate the farms at Hawkesbury.
? - A tornado strikes Sydney, destroying crops and trees in the early settlement, 1st tornado recorded in the BOM's severe weather archives.