1261,
A PPL with either an Instrument Rating or an IMC rating may fly VFR down to the VFR minima for the class of airspace/altitude/speed which you will be familiar with.
A PPL without either of the above ratings is restricted to higher minima both for VFR and SVFR. I'm sorry I can't recall the exact figures but I think it is 10km in-flight vis for SVFR.