About 15 mph is my MAX. I am not good with rudder and crosswinds. I have flown in 20 mph winds.... BUT these were right down the runway. Do as others have said, feel comfortable and confident or don't fly. When I first started about 3 years ago I could not visulize me flying in anything over 10 mph. It will be easier to fly in more wind as you gain skills and confidence......lownslo....