Clear,rain likely tomorrow
European, the American and the German model agree on a high near 22° in Newcastle today. Tomorrow looks drizzle around 22°, with a 81% chance of rain.
Newcastle, New South Wales. Below we compare what European, American, German forecast for Newcastle right now and flag exactly where they disagree, then break down Newcastle's weather month by month and which forecast model has been most accurate here.
We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in Australia before you trust any single number.
Here 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.
Newcastle runs from warm summers, with February highs near 27°C, to cold winters, when June lows sit around 10°C (a swing of about 17°C across the year). April is usually the wettest month, and Newcastle sees roughly 849 mm of precipitation annually.
The most comfortable time to visit Newcastle is usually January, March, May and June, when daytime highs sit in the pleasant 16-26°C range and the heaviest April rain is behind you.
The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1493 cities. Lower error means a higher score. See which forecast model is most accurate in Australia, how we measure forecast accuracy, or which model each weather app uses.
Bottom line: over the last 30 days the American model has been the most accurate forecast for Newcastle, scoring 83/100 on our CheckWeather Score, ahead of the German at 82. See the full AU accuracy scoreboard for exactly how every model is tested.
The models often agree on temperature and still split on rain — and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.