We just returned last night from the islands to Ensenada. On our experience, the seas were rougher going between the islands than our 4 sea days. However, we experienced extremely high winds while in the islands, therefore, our ship rocked quite a bit, but it didn't stop any of us from having fun. The winds only calmed down a small fraction after we left the islands. On one of our sea days, the ocean looked like glass it was so smooth.
As one of the other posts stated, the oceans can change at any time. Try it, you'll love it!!!!!!!