Today the beach outside Honokohau harbor to the south was quite diveable. I suspect the only other decent shore dive spot in the Kona area might have been 2 Steps, if that. Surf is supposed to slowly drop through Friday from what I've heard. You might want to call Kohala Divers in the morning to see how it's been up that direction. North of the aiport can be affected less by south swells. If the swells are still hitting there, viz could be down. If you want to just take a chance, head up to Puako early and check it out, if it's messy then head up to Mahukona, it's usually a safe bet when things are coming in from the south.