Your in the prime area for phals. They should do well, they are very forgiving. It does not take long for them to acclimate to your environment but some of them can get a bit bratty and show an attitude but will come around. Keep them mildly moist if they are on your patio. Hopefully your patio is fit for a fan to provide good air circulation especially now that we are in the rainy season. It will be hard to say if and when and how many times a year they will bloom. It really depends on the type of orchids. I have one that recently stopped blooming (4th time around) which was bought for me on valentines day 2007. Than there are the ones that I am still tapping my feet waiting for them to show me that they are happy campers. Just give them the care they need and they will flourish when they see fit