Newcastle weather in August
Long-run climate averages for Newcastle, New South Wales in August, plus what the forecast models say for the days ahead.
In August, Newcastle averages 19°C by day and 11°C at night. The wettest month is usually April.
August in Newcastle averages a daytime high of 19°C and an overnight low of 11°C, which reads as mild for this part of the world. It is among the three coldest months of the year here. Across the whole year Newcastle sees roughly 849 mm of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like - for that, see the live Newcastle forecast with every model compared and how much they currently agree.
Newcastle weather by month
what to expect in Newcastle through the yearHere is Newcastle's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Newcastle by season.
Bottom line: over the last 30 days the German model has been the most accurate forecast for Newcastle, scoring 79/100 on our CheckWeather Score, ahead of the American at 76. See the full AU accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is Newcastle in August?
Is August a good time to visit Newcastle?
Does it rain a lot in Newcastle in August?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .