My epistemology is synthetic between rationalism and empiricism, and can't really be reduced to either pole, although most people would probably think of it as empirical since observation does play an important role.
However, observation can also include introspection. We can learn about ourselves through introspection, and that doesn't involve the senses, strictly speaking.
Furthermore, knowledge is acquired through a long process starting with something similar to coherentism. We start off tentatively with a collection of common knowledge, educated views, intuitive reasoning, and life experience. Using these, we may use dialectical (Socratic) thinking to arrive at basic principles in which we have strong confidence, and from these principles work toward a relatively foundationalist epistemology in which we come to justify as many beliefs as we can in terms of these fundamentals.
Even so, some coherentism may be maintained as long as we approach unjustified or weakly justified views as tentative and without strong conviction.
eudaimonia,
Mark