Gus is right on the $$ with what he said.The bar has less blow off days than the east end of Lake Ontario so You will be fine just pick your days if you can't get out you could go in to the river and try for some steelhead and lakers.Just make sure you stay on the USA side of the river or you will have to buy a canada's fishing lic.I have seen 14 foot alum.boats out in Oswego but with waves 2 foot or less.but just remember a 30 lb fish is not worth going out in big waves.Good luck.
The weather is what everyone goes by, I have seen an off shore wind you could fish out maybe 3/4 of a mile.I only have a 19ft boat and I have seen days I would not go out at all. Last year in July on a 1week vacation we were blown out 3 day fishing between the salmon and oswego rivers, but I still landed a king at 34.8 lbs. (Check bragging Board) We still had the time of our lives, worth the trip. But there are options like fishing in the river, staying close to shore, or relaxing and waiting for another day.Still looking for more people to go to the Niagara Bar with us if you can make it,you are welcome.
Ernie