Is urine can be pale yellow with the deficiency of vitamins or dietary problems?

I am an Indian (comparatively hot climate) working in S. Korea (cold climate) for two months. I noticed that my urine goes pale yellow how muchever water I drink, but urination is quite often whenever more water inside, even though a slight pale yellow color persists. The same with my wife also. Is it related to climate change, dietary problem, vitamin deficiency etc.?