how does temperature influence spray paint usage?
10 C or 50 F is not the optimal temp for aerosol spray painting, but should be OK. Most manufacturers recommend 60 F or above, but I wouldn't worry too much. The product will spray fine, the dry time may be a bit longer but it will dry fine. Try to get the painted pieces indoors to a warmer area as soon as they can be handled, and your paint will cure properly.  Good Luck.