Hopefully you've already been thinking about packing, but here is our general dress code-
Bubu said that for street ministry we can "dress like Mark Driscoll", meaning clean casual (jeans, polo shirt, tennis shoes, sandals, etc.). For the evening concerts he wants us to dress more formally, so guys in shirts and ties, and girls in dresses or nice slacks & blouse. For church on Sunday, we should wear what we would normally wear to RCC, or better.
Polish people dress up to to go out. No PJ bottoms. ;-)
The current weather forecast is also in the 80s, so bring something comfortable for hot weather.