The arrows are 180° flipped from the actual wind direction.
I've just ridden a couple of laps with the wind from WSW.
This is correct on the activity map, showing 35kph from WSW.
On the segment leaderboards the arrow shows the wind to WSW
The arrows are 180° flipped from the actual wind direction.
I've just ridden a couple of laps with the wind from WSW.
This is correct on the activity map, showing 35kph from WSW.
On the segment leaderboards the arrow shows the wind to WSW
Yes, arrows for N are:
activity: 
segment: 
And those are default, for other directions both are rotated the same way - rotate(180deg) for S.