Weather Data Download
Download historical weather data from Open-Meteo for AI-Kit renewable energy analysis. 10 Indian cities available.
Solar Radiation Notes
GHI represents solar energy received on a horizontal surface and is suitable for weather analysis, solar resource assessment and site comparison.
GTI / Plane-of-Array represents solar energy received on a tilted PV module surface and is recommended for PV performance analysis, PR assessment and energy yield estimation.
When GTI is selected, enter panel tilt and azimuth. For India, a common starting point is 15° tilt and 0° azimuth, meaning south-facing in Open-Meteo convention.
Data Column Description
| Column | Description | Unit |
|---|---|---|
| Date | Observation date | DD-MM-YYYY |
| Location | Selected city or site location | Text |
| Ambient Temperature | Daily mean air temperature at 2 m height | deg C |
| Relative Humidity | Daily average relative humidity calculated from hourly values | % |
| Rainfall | Total precipitation for the day | mm |
| Global Horizontal Solar Radiation (GHI) | Daily solar radiation received on a horizontal surface | kWh/m2/day |
| Wind Speed | Maximum daily wind speed measured/modelled at 10 m height | km/h |
Historical weather data is available from 1940 onwards where supported. Source: Open-Meteo historical weather database.