The University of Hawaii system doesn't have a single, uniform GPA requirement for Cum Laude. Each campus (e.g., UH Mānoa, UH Hilo, UH West Oʻahu) sets its own Latin honors criteria, which may vary slightly depending on the college or even the specific degree program within a college.
To find the exact GPA requirement for Cum Laude, you need to check the specific graduation requirements for the campus and degree program you are interested in on that campus's website. Look for information on "graduation requirements," "academic honors," or "Latin honors."