For daily riding in North Thailand I wear a BMW AirFlow 3 jacket, upgraded with Forcefield forearm and back armour, zipped to Motoport Cordura jeans. Underneath, a synthetic athletics shirt copes with the humidity without getting clammy. Much better than a cotton T-shirt.
The Motoport Cordura jeans are very comfortable. If I ordered them again, I would ask for stirrups to stop the legs from riding up in a slide.
I keep a fluorescent yellow plastic over-cape on the bike for rain, and wear TCX touring boots. Gloves are a problem since leather gloves that are ventilated for hot weather tend to deteriorate badly when wet. That said, a pair of Spada Air-something gloves has lasted about two years. I have ordered some Velocity Gear Exhibition Pro´s.
For special occasions, such as a blast over the mountains in the early morning, I wear a semi-perforated BKS leather suit with perforated Oxtar boots. But by 11am it is too hot to wear.