Light drizzle,warmer tomorrow
European, the American and the German model agree on a high near 18° in Piara Waters today. Tomorrow looks mostly clear around 21°, with a 0% chance of rain.
Piara Waters is a small town of about 8,892 people in Western Australia, sitting at 32.1°S in a subtropical climate zone. European, American, German each forecast Piara Waters with their own physics, so we line all three up and flag where they disagree. Nearby towns include Harrisdale, Atwell, Southern River.
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.
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.
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.