Head wind.
Went for a ride yesterday and found I was bucking a good 5 mph headwind on the first leg of my four point compass rout. Figured I would have it easy on my trip back as it would be my pushing tail wind. Turned at the end point and headed back only to find that I was still pushing the wind in my face. As I turned from the east/west direction to my North heading I again found I was pushing air. It seemed no matter what direction I turned I was heading into the wind. Got a good workout but it definitely took the "wind out of my sails". See what I did there?
Be safe all, Frank.