All I know is that my FIL near Bergheim gets his water from a windmill and late summer the last 3-4 years, he has had a tough time for weeks at a time getting enough water and has had to run a hose down to his tank from another well with an electric pump. I also know that along the coast from Corpus to Houston, the flattest seas and lowest winds (outside of when hurricanes are around) are in august and early september. I suspect that the winds are different up on the escarpment and plateau versus down on the south and east sides of SA due to the elevation changes and vegetation types. SA may get more wind than the plateau does just due to downslope winds. Of course late september and into october is a totally different story...we start to get fronts moving in and those will definitely jack up the winds. I have ridden 4 Bike to the Beach MS150s as well, and only one of them had winds less than 15 mph.