Hi Janice,
Welcome to the forum.
Full sun is not a bad thing if your hive are painted a light color and there is a good amount of ventilation, such as a screened bottom board, and inner cover with the 2 grooves to allow air to move freely. Full sun helps with control of Small Hive beetles (SHB), warms the hive in the morning, and generally gets them started on their day.
The problem is when they have to use bees to cool the hive, foraging dwindles and thus your honey production suffers.
My "perfect scenario" is full sun in the morning up until 3pm; then dappled sun/shade for the rest of the day during the summer. I can't think of one hives that is set in the "perfect" location. This is mainly due to my laziness in moving the hives 2 feet per day to a slightly different spot in the yard. So close-enough is good for now!!
If you see your bees hanging out on the front of the hive day after day then you know that you may want to prop the cover open or take some other action to help them stay cool.
It sounds to me like you picked a pretty good spot the first time out!!! Kudos, BRAVO ZULU, Good Job!!!
Hope this helps.
RKR