I've been very happy with goretex waterproof cycling specific rain pants & jacket. Especially for the rainpants it was important to get cycling specific because it's reinforced in the right places and it's the right shape. It's helpful with the jacket too so it does't flap in the breeze. However, I mainly use this as an outer windblock layer in the coldest weather. Even though it is a breathable goretex, it still traps heat pretty effectively. In warmer weather I tend to just get wet, bring extra clothes in a plastic sack. My climate is a lot different than yours.
2009 Trek 7.2FX WSD, brooks Champion Flyer S, commuter bike