I have never used geojson or any other spatial filetype before but I have a dataframe with longitude, latitude and temperature columns and a separate geojson file representing an area that fits within all the coordinates in my df (imagine the geojson is a circle within the df square…)

How do I filter the temperature df so that I only have records of areas that fit within the geojson file?

I have no idea where to start on this so haven’t attempted anything yet!

Thanks