I just ride three stops on a Metro that tourists won't typically use. It's mid day so these aren't people going to work. It's 85F today, but we don't have much humidity and there is almost always a breeze.
Approximately 25 women and 20 men in my car. All ages, maybe 25 to 55 but the median was probably about 30.
All but 2 men in shorts. Neither of the 2 men in pants were wearing jeans, but they were casual pants and tan or brown. 50/50 crew neck shirts and button up.
All but 5 women in dresses or skirts. Mostly dresses. Mostly long, only 3 or 4 above the knee. Mostly bright colors and patterns. 2/3rds loose and flowing, 1/3 "bodycon". Mostly décolleté .... even with the above 40 ladies.
The ones not in dresses or skirts not a pair of jeans among them.
75% had backpacks, men and women. Mostly small. Didn't see any cross body bags but a few purses worn that way.
One NY Yankiee cap, and a half dozen other caps but no fancy hats.
Now I sit outside the Thirsty Swan Pub far removed from tourists and the trend is the same.
EDIT: apparently my lack of knowledge of fashion terms offended someone. Not my intent. Just my ignorance. So I did some research and thats always good, now my vocabulary is larger ... and I edited accordingly.