My 2010 Hyundai Getz SX 1.6-litre four-door auto averages just 10.5 L/100 km, which to me is rather excessive for a small car. Hyundai has told me to wait until the 15,000 km service, giving the computer time to bed in, which to me is a lot of BS. They did suggest I put 95-octane fuel in the car and monitor the usage, but that had no effect. Have you heard of such problems with the car?
Hyundai claims your car should do 9.4 L/100 km in urban driving conditions. That's what they get under standard test conditions, and while that doesn't necessarily translate to the real world it is a guide as to what you could expect. On that basis your car is using too much fuel, but not enough to cause too much alarm at this stage. It is still quite new and the fuel consumption should come down as the engine beds in with more miles. I would take Hyundai's advice and monitor it through to the 15,000 km service and if it is still too high have the dealer run a diagnostic check on it.