Im instaling tile on my deck,and is raining i need to know if is ok to continue or stop for better weather.

I have a basement that was remodelled in the 60's and has 9-inch tiles, which are probably VAT. We have had two floods in the basement, and a few tiles have separated from the underlying concrete base. Does anyone sell 9-inch tiles that I can use as replacement tiles? I would rather find 9-inch replacement tiles than 1) cut 12 inch tiles into 9 inch tiles (I don't think I can cut them crisply.); or 2) replace 36 inch squares (i.e. replace sixteen 9-inch tiles with nine 12-inch tiles); or 3) redo the entire basement, (its used mostly for storage). I would much rather simply find a 9-inch replacement tile if possible. Any help you can provide is much appreciated. thanks, Ken