eelnoraa
Contributor
Monterey temp is rarely above 55F. Most of my dive logged 50-52F, the lowest is 46F. Not sure about San Luis Obispo tho. . I also agree a used drysuit. Look around, a very decent used drysuit can be found for a bit more than a new semi dry. And if you think you will dive a lot, you will eventully move to a drysuit. Your thick semi-dry won't get much use after that. So why not save the money on the semi dry, go for a used dry.