If the only issue is time of year, go in early October. We go every year.
July is the beginning of High Season along the Oregon Coast. Hotels along the northern Oregon Coast sometimes require a 2 night minimum stay. October is uncrowded and oftentimes pleasant weather.
It's rarely really 'beach weather' on the Oregon Coast, it is more about seeing the spectacular coastline. I'd go with October.
Both months are fine for visiting, but being from Florida there is a good chance that you will get quite chilly here in October. We used to live in both FL and GA and when we came out to visit all our family here, we had been away long enough that we would get cold faster. So , just one thing to keep in mind that may or may not affect you.
July: Busy, busy busy. Reliably good weather - usually. Hotels full. Chance of fog. Beach breezy.
October: Much less crowded. Usually good weather, greater chance of rain. Cooler, poss night frost later in month. Shorter days.
Friends of mine in the construction industry plan their projects based on an assumption that the rains begin around the middle of October. And I think historical data supports them. So, while we often have nice weather well into October, there's a much higher chance that you'll get wet without having to dip your toes into the surf.
On the other hand, as others have said, October won't be nearly as busy as July, and rates will be lower.
-:- Message from TripAdvisor staff -:-
This topic has been closed to new posts due to inactivity. We hope you'll join the conversation by posting to an open topic or starting a new one.
To review the TripAdvisor Forums Posting Guidelines, please follow this link: http://www.tripadvisor.com/pages/forums_posting_guidelines.html
We remove posts that do not follow our posting guidelines, and we reserve the right to remove any post for any reason.