The site's collection includes maps for individual states, which should show much better detail of local coastline conditions than the overall national map I posted.
I have mentioned ECMWF climate data before, but not in the context of complementarity of wind and solar power generation. ECMWF is a free data source (one must sign up with a valid email address). Among other parameters it provides solar flux and wind-speed data at 0.25 degree lat/lon resolution, hourly temporal resolution, globally since 1940. I do not know any other data source that comes close to that. For our Bob's location (within 0.25 degree), it could reveal when wind power can be extracted but solar cannot*. Simply a matter of data extraction and processing. More broadly it could reveal where wind and solar power are most complementary anywhere. AFAIK PV and wind engineers consider siting goals separately. That need not be so. Complementarity help sby reducing battery-storage requirements. Expense of battery storage should lead engineers in this direction. *"It was a dark and stormy night ..."
Global winds are almost always much stronger over sea than land. Land and things on it are bumpy and frictiony. It is not realistic to go very far offshore with wind turbines. Less far or not at all with PV. It's salty out there and electrochemisty is bothered.. There are inland non-saline waters with large PV installations already. OT here.