Wind direction arrow is supposed to point to where wind is coming from. Why does the Arrow point in the opposite direction ?

This is about the arrow on Apple Watch that shows the wind direction as one of the weather indicators. Various weather indicators can be placed on the faces of the watch, such as temperature and wind. The arrow indicating wind is very useful to pilots and sailors. However, it points in the opposite direction to all traditional physical wind indicators. If wind is from the south, the arrow points to the north. A weather vane or airport wind indicator would point to the south.

The standard convention IS that wind direction instrumentation arrows point INTO the wind.

This is also how “wind vanes” are configured.

Wind Socks obviously “trail” downwind but their “mouth” is still pointing upwind … (think of it as a fish swimming)

A standard weather report does indeed cite where the wind is coming FROM.

A reported “Easterly” breeze of 090 DegT is coming from the East.

Meteorologists, mariners, and pilots ALL use these same conventions.

As to the arrows cited by OP on the Apple Watch … I too would like to see an image.

If it’s indeed as the OP posts … with the arrows pointing downwind … the app developer indeed has it backwards.

"The standard convention IS that wind direction instrumentation arrows point INTO the wind."

Nope, it is not convention anywhere. Plain arrows point the direction of the wind on a wind map, always been that way. A wind indication device points into the wind, it's the opposite, always has been. This is normal.

I’m not sure I understand the opening of your reply, although I completely concur w/ the follow-on statements.

First it’s stated that it’s not convention anywhere …

… then the reply goes on to cite the two standardized conventions:

Indicating instruments point “into” the wind. (into the flow)

Wind Maps and other meteorological products‘ symbology points “downwind” (with the flow).

I guess the question is whether an Apple Watch’s display is (or should be) considered an “instrument” or a “mapping symbol.”

To my own personal way of thinking, it should display as an instrument.

That said, I can see why a developer might choose “mapping symbol” as it’s being developed for a “mass audience.”

That's for specific technical charts and maps. Consumer facing products use regular arrows showing the direction of the wind.

Either way, that's the way it is, you can't change it, and it has nothing to do with the Motion app.

This sample watchface should be indicating that the wind is blowing from the Northeast @ 5 MPH.

FWIW: Here’s NOAA’s “key” for graphical depiction of wind on charts and maps.

Source: https://graphical.weather.gov/supplementalpages/definitions.php

Is this on Apple Motion? What wind arrows are you talking about? Some third party? I cannot find anything in the built-in Motion library.

Actually, NO! If wind is coming from South, an airport wind sock would - very obviously if you just think about it! - point to North.

I’m not sure what you consider a “wind map” but all aeronautical weather maps from NOAA depict current wind at every airport with an arrow pointing in the direction the wind is coming FROM.