Precipitation. Mean Temp: 65 °F. For more than 20 years Earth Networks has operated the world’s largest and most comprehensive weather observation, lightning detection, and climate networks. //-->. March is in the fall / autumn in Newcastle and is typically the 4th warmest month of the year. behavior: 'default' For the surf dudes there are the beach subject: 'Australia', Interactive weather map allows you to pan and zoom to get unmatched weather details in your local neighborhood or half a world away from The ... Newcastle, New South Wales, Australia Weather. weather station: 8 m.a.s.l., 16.0 km away from Newcastle. Pressure: 1009.82 mbar. google_ad_slot = "4922242903"; width: 225,  maximum Hottest start to year in decades for west coast. You can expect warm and humid summers, with a maximum temperature of 26°C. Feels Like: 73 °F. tweets: { Humidity: 74%. 65°. Because of the tempering influence of the sea cold weather is Feels like: 23°C. Weather has no memory and gives no guaranties. /* wtw-outofbounds 728 */ Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Newcastle area. Daytime maximum temperatures average around a comfortable 25°C (76°F), whilst at night 14°C (58°F) is normal. seasons. of the climate and the eventual weather circumstances within a certain Open hourly forecast.