Microsoft Aurora

Microsoft's AI-based global weather model that provides forecasts at 0.25° resolution.

Live Forecast Data

• Global coverage at 0.25° resolution (721x1440 grid)

• Four daily runs (00, 06, 12, 18 UTC)

• 20-day prediction horizon (480h, six-hourly)

• Real-time data access via Python SDK or REST API

Technical Specifications

Available Weather Parameters

Aurora uses standardized variable naming conventions. For full details on the naming structure, see Weather Variable Naming.

Parameter Code	API Name	Description	Units
2t	air_temperature_at_height_level_2m	Air temperature at 2m	Kelvin
10si	wind_speed_at_height_level_10m	Horizontal wind speed at 10m	m s⁻¹
10wdir	wind_direction_at_height_level_10m	Horizontal wind direction at 10m	Degrees true
msl	air_pressure_at_mean_sea_level	Mean Sea-level Pressure	Pa
z_500	geopotential_at_pressure_level_50000Pa	Geopotential	m² s⁻²

Note: The previous naming convention used in EPT-1.5 is deprecated. All new integrations should use the standardized naming shown above.

Hindcast Data

Spatial Extent: Global, on a grid of 721x1440 (25 km resolution).

Data Access: Hindcasts are available via API or SDK. For bulk, grid-based access, please contact [e-mail].

Model	Temporal Extent	Forecast Horizon and Resolution
Aurora 0.25 deg	2025-06-03 - today at 00, 06, 12, 18 UTC	480h, six-hourly

Extended Hindcast Data (Special Request Only)

Special Request Required: The following extended hindcast data is available but requires special access permissions and is not accessible through standard API/SDK access. Please contact [e-mail] to request access.

Model	Extended Temporal Coverage	Forecast Horizon and Resolution
Aurora 0.25 deg	2023-01-02 - 2024-12-27, 2025-06-03 - today at 00, 06, 12, 18 UTC	480h, six-hourly