The weather is quite all right in Feb there. Temperature is usually in mid-20's, sunbathing is good enough between 11 and 3p.m. Evenings are quite cool (light jacket needed). Pools are heated practically everywhere. There is a LOT to do and see in Dubai, so everybody can find something to his liking. However, considering the length and cost of the flight, you might look into the length of your stay there (6 days is not really a lot, imo)