offline GPS not accurate, is this normal?

[keriboomboom]

hi.. i'm using here maps for my lumia 620 wp8.1 most of the time here in singapore. I can say that it is useful but my comment is my location is not accurate( please see attached picture). The green circle shows my actual location as per GPS (the one with singapore caption), but the truth is I am at "Kaki Bukit Ave 2". Is it normal or there is something wrong with my cellphone?:unhappy:

 

[greenspot]

The accuracy of your location is determined by the GPS signal. Some places has poor signal reception such as indoor building.

 

[Bizarro_Prime]

There are times when my GPS puts me on a completely different street but not too far away from my actual location.
GPS works because of satellites so, somebody correct me if I'm wrong, weather can play a part in how GPS determines your location.