Weather/ Scuba Diving in Guam in October?

Hi - I will be in Guam from mid to late October this year on business and may have one extra day at the end of the trip for diving. I'm considering extending that to two days because I would love to try to get in a couple wreck dives. But how rainy is the rainy season then? Is it still dive-able? Also, is there a must see wreck dive or wall dive? I can't imagine it takes very long to get around the island but for work I'll be around Tumon, wondering if I should try to switch to another part/hotel for better diving.

Thanks for any advice!

I think most of the boats leave from Hagatna, just a couple of miles south pf Tumon Bay. A few may head out a little further south from there, but it's not hard to get around along the west coast. Check on some the dive websites, or via Google.