I'm surprised to see so much answers leading to use a Static Website Generator. WordPress certainly can be problematic, but I think that there are clear advantages in both cases. You've got to make tradeoffs in both too.

I've been hearing a lot about Hugo lately, but my main concern as a blog editor with static website generators is the fact that they are great for, well, static content. If you want to update your site with new content and features (posts, pages, sections, widgets, comments, web statistics) WordPress make that easier.

On static websites generators —at least the ones I tried a couple of years ago, octopress/pelican/jekyll— these systems are great if you want to just have a good/superfast landing page and a few other pages laying around. Once you want to add new pages and posts you had to recompile everything again, something that wasn't a good idea with sites that grow dinamically through time with hundreds or thousands of posts (like my blog, for example).

Please let me know if Hugo (and others) solves the "recompilation" issue to rebuild the site each time, I'm probably wrong or not updated here. In your case it seems that static website generator could be a good fit though.

Squarespace is really nice too, btw. Good attention to design and detail, not so versatile as WordPress.