Don't know the exact temp, but it was nice!!! It's still a little to cool for some people, but not me.....I was in it in April as well!!! I did some snorkeling and saw the usual fish, but the tide pooling was disappointing. Not much to be seen or found....seems sometimes, the critters are abound and other times, well, like this time....not much. I kayaked from PDO to the point one day and the water was so clear for what seemed like a long way down.....just beautiful!!! So, if you can "stand" water that isn't quite bathwater temp yet, go for it and enjoy!!!!!!