ECMWF IFS Ensemble
The ECMWF IFS Ensemble (ENS) produces 51 forecasts — one control run and 50 runs with slightly varied starting conditions.
Live Forecast Data
Global coverage at 25 km resolution (720x1440 grid)
Four daily runs (00, 06, 12, 18 UTC)
00/12 UTC runs: 360h forecast (15 days); 06/18 UTC runs: 144h forecast (6 days)
Six-hourly time steps
Real-time data access via Python SDK or REST API
Technical Specifications
Available Weather Parameters
ECMWF ENS uses standardized variable naming conventions. For full details on the naming structure, see Weather Variable Naming.
2t
air_temperature_at_height_level_2m
Air temperature at 2m
Kelvin
2d
dew_point_temperature_at_height_level_2m
Dew point temperature at 2m
Kelvin
skt
surface_temperature
Surface Temperature
Kelvin
10si
wind_speed_at_height_level_10m
Horizontal wind speed at 10m
m s⁻¹
100si
wind_speed_at_height_level_100m
Horizontal wind speed at 100m
m s⁻¹
10fg
wind_speed_of_gust_at_height_level_10m_max
Maximum wind gust at 10m
m s⁻¹
10wdir
wind_direction_at_height_level_10m
Horizontal wind direction at 10m
Degrees true
100wdir
wind_direction_at_height_level_100m
Horizontal wind direction at 100m
Degrees true
sp
surface_air_pressure
Surface Pressure
Pa
msl
air_pressure_at_mean_sea_level
Mean Sea-level Pressure
Pa
tp
precipitation_amount_sum_1h
Total Precipitation
mm m⁻²
ssrd
surface_downwelling_shortwave_flux_sum_1h
Surface solar downward irradiance
J m⁻²
Hindcast Data
Data Access: Hindcasts are available via API or SDK. For bulk, grid-based access, please contact [email protected].
Model
Spatial Extent
Temporal Extent
ECMWF ENS
Global, 25 km resolution (720x1440 grid)
2025-09-01 - today
Last updated