This hive was empty a week ago.
If you've got all your gear but no bees, be sure to leave an empty hive box (with top & bottom boards and frames) wherever you'd like your hive to be. If you're lucky, a passing swarm may move in.
Here in Southern California (and in any mild climate), bees may find you at any time; I went out to our yard today and was happy to find a new hive all set up and running. Free bees with no work whatsoever!
If your hive box and frames are new, it helps to have some starter strips with wax in the frames; here's a video on how to do this. A bit of lemongrass oil on a cotton ball is a good lure as well.