4 am, I would expect calm. But a light offshore breeze to be...

4 am, I would expect calm. But a light offshore breeze to be picking up after sunrise plus maybe 1 to 2 hours, increasing until? depends - around lunchtime I guess - then a stall and reverse.
Unless overpowered by something like the trades.

On the Queensland coast- my antenna are sky high if I wake up to a NW rolling me awake in what should be a protected anchorage and dead calm and I hear that a SW change is on the way - she’s a flat out gallop to shelter - assuming there is some.