I have zero outlets on the outside of my house. I want to add 3; one in the front and 2 on the back of the house. Do each of these need to be dedicated or will a single 20amp circuit suffice for all?
TIA
TIA
So far as outlets/breakers go... It is what you are using ALL at the same time!
In the case of outside outlets, typically only one will be used at a time. Like for an electric lawn mower or similar. That has been in the past, so far as the future, if you don't think you would use more than one outlet at a time for anything high amperage (compressor, lawn mower, heater), then no problems with them being on the same circuit.
Good idea to run separate wires back to the panel, then you can place them on separate breakers in the future if needed.
As for GFCI's, I installed separate GFCI's on each outside outlet and am glad I did. Then if the GFCI trips, it is at the outlet I am using. No going hunting for the GFCI!
Not very much more expensive to install separate GFCI's or install a GFCI breaker. Well worth getting rid of the "GFCI hunting" annoyance.