Weather API for Historical Forecasts

Historical forecasts

Upon request, we provide historical forecasts tailored to your application. Historical forecasts are available for any location worldwide.

Typical uses of historical forecasts are:

  • Training data set for machine learning algorithms
  • Modeling Sales Forecasting
  • Modeling of dynamic pricing systems


  • Weather forecasts in hourly resolution
  • Forecast horizon of up to 10 days in the future
  • Query of arbitrary points (defined by place name, postal code or coordinates)
  • worldwide coverage
  • Output format CSV, XML, JSON, YAML or as needed
  • Totaling / averaging of hourly values to 6, 12, 24 h possible

Available parameters (selection)

Weather forecasts

ttTemperature 2 m above ground °C
txMaximum temperature 2 m above ground °C
tnMinimum temperature 2 m above ground °C
tdDew point 2 m above ground °C
tt5Ground temperature 5 cm above ground °C
rhRelative humidity 2 m above ground %
rrRain rate, total precipitation mm
rrpProbability of rain %
thProbability of thunder %
slSnowfall line m a.s.l./m ü.M.
ffWind speed km/h
fxMaximum wind gust km/h
ddWind direction °
dddWind direction N/S/W/E
nTotal cloud coverage octa
clvl/cll/clmCloud coverage very low/low/medium altitude octa
ssSunshine duration min
radGlobal radiation W/m2
syWeather symbol; see #1-15
synopSynop code #1-99
zerodegHeight of zero degree level m a.s.l./m ü.M.
qffAir pressure hPa
et0Evapotranspiration in hourly & daily resolutions mm/h | mm/d