Well, I'm not sure if I'll be able to help you with your issue but yes, you can avoid them by going out in the early morning before their hives have warmed up or in the late evenings after they have gone back to the hive for the night.
Also, in general bees are fairly localized; they fly within two miles or so from their hive and capitalize on preferred nectar and pollen sources when they are available. So, perhaps there are certain problem areas that are close to a hive or close to some attractive flowers.
Lastly, you may not be getting stung by honey bee.