Looks like healthy and beautiful 4a hair to me. Perhaps a little 3c mixed in.

Based on all the people I know, plus the pics posted in these forums, if you have to wet your hair down to get a better idea of the curl pattern, it's probably in the 4 range.
3b/c?

Ringlet Fandango! ... Where curly ideas roam free

* 2 blogs this week: Pictures of My (Sorta) Big Chop! AND Turn a Nightmare Product into a Dream* My Albums