If you wear it twice a year, yes. That is probably about the weight of a pair of chinos.
Unless you are very prone to overheating, I would get 12 oz though because it will drape better and wrinkle less,
Just bought a pair of 9.5E 202 Berkleys online. I normally wear 9UK or 10D USA shoes in other brands.
The EGs aren't loose but they definitely are not snug in the toe box. Do you think they will stretch out and be too lose after a few wears?