Download point-level seasonal weather forecast using open-meteo API

Returns 6-hourly ensemble forecasts from ECMWF seasonal models. The seamless model uses EC46 for the first 46 days and SEAS5 for up to 7 months ahead.

Usage

get_seasonal_forecast(
  latitude,
  longitude,
  site_id = NULL,
  forecast_days,
  past_days,
  model = "ecmwf_seasonal_seamless",
  variables = c("temperature_2m")
)

Arguments

latitude

latitude in decimal degrees north

longitude

longitude in decimal degrees east

site_id

optional site label added to output; defaults to "latitude_longitude"

forecast_days

number of forecast days. EC46 supports up to 46 days; SEAS5 and the seamless blend support up to ~214 days (7 months).

past_days

number of past days to include

model

seasonal model id. Default "ecmwf_seasonal_seamless". Other options: "ecmwf_seas5", "ecmwf_ec46". See https://open-meteo.com/en/docs/seasonal-forecast-api for details.

variables

character vector of variable names. See https://open-meteo.com/en/docs/seasonal-forecast-api for the full list.

Value

data frame in long format with columns: datetime, reference_datetime, site_id, model_id, ensemble, variable, prediction, unit.

Examples

if (FALSE) { # interactive()

get_seasonal_forecast(
latitude = 37.30,
longitude = -79.83,
forecast_days = 30,
past_days = 5,
variables = glm_variables(product = "seasonal_forecast",
                         time_step = "6hourly"))
}