2 HDMI 1080p monitors from 1 usb c port
Technically this is possible. The trick, however, is finding the adaptor you will need to achieve it. I've seen many USB-C to HDMI adaptors on the market, but I don't recall seeing a USB-C to dual HDMI adaptor.

On the other hand, some people have achieved connecting two displays to a single USB-C port using a couple of different connectors. By this I mean they have purchased a USB-C to multiple port adaptor and then connected one HDMI display to the HDMI port, and a second HDMI display to one of the other ports through a second adaptor cable. I've generally seen this done in one of two ways:


Using a DVI to HDMI adaptor, with the DVI end connected to the DVI port on the USB-C to multiple port adaptor and the HDMI end into the display
Using a USB to Video adaptor, with the USB end connected to the USB port on the USB-C to multiple port adaptor and the DVI end into the display


However, your mileage in doing so may vary. I would ensure that if you go down this path that you're purchasing your adaptors/cables from somewhere you can return them if they don't do the job. Of course, if you can find a USB-C to Dual HDMI port adaptor, that should make things a lot easier.

EDIT

Another option may be using a USB-C hub (or the like) that has additional USB-C ports and then using two USB-C to HDMI adaptors plugged into those. 

However, you will need to ensure that any such USB-C ports are not limited to only data transfer, charging, etc and that they will support output to a display. This is also true if you opt for a USB to Video adaptor.