This page is designed to help you plan the practical elements of a trip to Sydney. We hope we have covered all the basic information, Weather Visitors to Sydney are fortunate enough to experience a consistent climate with average summer temperatures of around 25C (77F). However, on a hot summer day temperatures can reach 40C (104F) when high humidity can make the heat feel oppressive. Winters in Sydney are cool rather than cold. For a more up to date weather forecast please click here. Currency The national currency in Australia is the Australian Dollar (A$). 1 A$ = 100 cents. Notes are in denominations of A$100, 50, 20, 10 and 5. Coins are in denominations of A$2 and 1, and 50, 20, 10 and 5 cents. Exchange facilities are available for all incoming and outgoing flights at all International Airports. Visa, MasterCard, Diners Club and American Express cards are widely accepted in major cities. Click here for current exchange rates. Airport The flying time from London to Sydney is approximately 23 and a half-hours. Travellers over 18 years old are permitted to bring into Australia without incurring customs duty the following items; 250 cigarettes or 250g of tobacco or cigars, 1.125l of any alcoholic liquor, articles for personal hygiene and clothing, not including perfume of fur apparel, other goods to a value of A$400 Telephone / Electricity The electricity current in Australia is 220/240 volts AC. Three pin sockets are used however, they may differ to those used in most countries and an adapter may be needed. The country code for Australia is 61 and the outgoing international code is 0011. Payphones in Australia are either red, greed, gold or blue. Only local calls can be made from red phones, green, gold and blue phones have International Direct Dialling.