Which weather forecast is most accurate in Australia?
We put European, German, American to the test against the weather that actually happened, over the last 30 days across 24 cities. Here is the honest scoreboard.
#1European±0.5°C
#2German±0.7°C
#3American±0.8°C
Average error of each model's daily-high forecast vs ERA5 (the recorded weather), last 30 days, 24 cities. Lower is better. ERA5 is ECMWF-based, so it slightly favours the European model. Updated 2026-07-19.
European came out on top this month, but read that carefully: the gap between the models is small, and no forecast wins every day. That is the real lesson. Instead of asking "which app is most accurate," the smarter move is to watch all the models at once: when they agree, trust the forecast; when they split, expect surprises. That is exactly what the live AU comparison shows you, town by town.
Common questions
Which weather forecast is most accurate in Australia?
Over the last 30 days, European had the lowest average error, about 0.5°C off the daily high measured across 24 AU cities. No model wins every single day though, which is why we show all three side by side and flag when they disagree.
What is the most accurate weather app in Australia?
Weather apps do not create their own forecast: they display these underlying models. So the "most accurate app" is really the one showing whichever model verifies best where you are, and that changes week to week. Comparing the models directly, as we do here, beats trusting a single app.
How do you measure which forecast is most accurate?
For each model we take its past forecast of the daily high temperature and compare it to ERA5, a reanalysis of what actually happened, over the last 30 days across 24 AU cities. We then calculate the mean absolute error. Lower is better.
How accurate is the Bureau of Meteorology?
The national service runs its own ACCESS model, but its open real-time data is currently limited, so we compare the three global heavyweights (European, American, German) that most forecasts here also draw on. The scoreboard above shows how those performed over the last 30 days.