Is "クリスマスの休みだよ！" an appropriate expression?


Is

> クリスマスの休みだよ！

an appropriate expression? For instance, as a Facebook post or what have you?
The main part I'm wondering about is よ. My understanding is that よ usually
implies that you're doing something to the audience that falls somewhere
halfway in between _informing_ them of something and _instructing_ them of it.
Here it's really being used mainly for emphasis, but I'm not sure if this is
loosely correct. And if it's not correct, should だ be omitted as well?

My understanding also is that なあ is fairly feminine.




It depends on what you want to say.  
First, の is not necessary:

> クリスマス休み

or

> クリスマス休暇

よ is genderless and mostly used for slightly assertive expressions, like さ and
ね.  
On the contrary, なあ is a masculine expression. Its feminine version is わ. But
they will not be a proper replacement for よ.

If you want to say "It's Christmas holiday!" (the "yay!" feeling), you can
use:

> クリスマス休みだ～！




It depends on what you want to say.  
First, の is not necessary:

> クリスマス休み

or

> クリスマス休暇

よ is genderless and mostly used for slightly assertive expressions, like さ and
ね.  
On the contrary, なあ is a masculine expression. Its feminine version is わ. But
they will not be a proper replacement for よ.

If you want to say "It's Christmas holiday!" (the "yay!" feeling), you can
use:

> クリスマス休みだ～！

