Source
ECMWF's reanalysis of the whole atmosphere, every hour since 1940, on a 0.25° grid. The newest days are the preliminary ERA5T release.
- Producer
- ECMWF, Copernicus Climate Change Service
- Read from
- ARCO-ERA5, Google Research's analysis-ready copy on Cloud Storage
- On the globe
- 26 Oct 2026, 23:00 UTC · published 5 days 4 h later
- Grid
- 0.25° · 721 × 1440 cells · 769 km² at the equator, 389 km² at 60°
- History
- 26 Sep 2026 to 26 Oct 2026, 23:00 UTC · every hour, 31 days · 11 channels · 9.9 GB
- Stored
- 13 channels · 14.3 MB on the globe now
- Licence
- Copernicus licence
Channels
- 2 m temperature°C · raw · 2m_temperature − 273.15Air temperature two metres above the model's ground.
- 2 m dew point°C · raw · 2m_dewpoint_temperature − 273.15The temperature at which the air two metres up would saturate. The closer it is to the temperature, the more humid the air.
- Sea-level pressurehPa · raw · mean_sea_level_pressure × 0.01Surface pressure reduced to sea level. Lows are storms and fronts; highs are settled air.
- 10 m wind, eastwardm/s · raw · 10m_u_component_of_windThe wind's west-to-east component ten metres up. Negative values blow toward the west.
- 10 m wind, northwardm/s · raw · 10m_v_component_of_windThe wind's south-to-north component ten metres up. Negative values blow toward the south.
- 10 m windm/s · derived · hypot(u10, v10)The wind ten metres up, from its two components: arrows point where it blows, longer for faster.
- Cloud cover% · raw · total_cloud_cover × 100The share of the cell's sky covered by cloud at any height.
- Water vapour, whole columnkg/m² · raw · total_column_water_vapourAll the water vapour above the cell, from the ground to space. One kilogram per square metre is one millimetre if it all rained out.
- Precipitation, past hourmm · raw · total_precipitation × 1000Rain and snow, as water, that fell in the hour ending at the valid time.
- Sunlight at the surfaceW/m² · raw · surface_solar_radiation_downwards × 0.000277778Sunlight reaching the ground, direct and diffuse, averaged over the hour ending at the valid time.
- Sea surface temperature°C · raw · sea_surface_temperature − 273.15The ocean's temperature just below the surface. Land cells have no value.
- Land share% · static · land_sea_mask × 100How much of the cell the model counts as land. Coastal cells sit between 0 and 100.
- Surface heightm · static · geopotential_at_surface × 0.101972The height of the ground the model sees in this cell: the average over the whole cell, not any one place in it.
Click or tap a cell on the globe for its hourly history.
Contains modified Copernicus Climate Change Service information 2026