import hvplot.xarray  # noqa

import xarray as xr

ds = xr.tutorial.open_dataset('air_temperature')
ds

ds.hvplot.contour()

ds.mean(dim='time').hvplot.contour(z='air', x='lon', y='lat', levels=20, 
                                   clabel='T [K]', label='Mean Air temperature [K]',
                                   cmap='gray')

ds.hvplot.contour(geo=True, tiles='EsriImagery', levels=20, line_width=2, cmap='reds',)