Global D+1 temperature ranking
Mean absolute error (MAE) across all tracked cities. Lower is better.
OfficialSettled data.
PreliminaryMay still shift.
Thin sampleLimited data.
1
MET Norway
Official1.42°C280 samples10 cities
Requires attribution
2
WeatherAPI
Official1.58°C280 samples10 cities
3
Visual Crossing
Official1.71°C275 samples10 cities
4
Bright Sky
Preliminary1.89°C224 samples8 cities
Requires attribution
5
Pirate Weather
Official2.05°C260 samples10 cities
Scores represent average temperature forecast error in °C for the D+1 horizon. Lower MAE indicates more accurate forecasts.