Some great advice here & should be mandatory reading for all pilots doing same.
As has been said, winds, strong winds can be the killer & keep in mind that yr G/S speed (assuming a light SE) might be as low as 50-60 kts at times whilst yr still chewing thru your fuel going nowhere!
One piece of good advice is & seeing as it's a private flight simply don't go if any of the above considerations are or have a high degree of probability, private flying means you don't "have" to go. Better for us to be reading about yr displeasure at Vic's at times unpredictable weather causing you to cancel than to be reading there's a search on....for you !
We've all been here far too many times reading such stories shaking our heads.....'why did they go'? Hindsight is a wonderful thing & you have the opportunity to have it before you go with posts like these here
I've flown over this country in all sorts of flying machines in all sorts of wx & it can be bloody scary as mother nature can take prisoners at the drop of a hat!
Cavok & light winds to you
Wmk2