Having a measure of precipitation, with little sunshine around (5)
I believe the answer is:
rainy
But I can't explain it at all! Could you help me understand?
(Other definitions for rainy that I've seen before include "The day one saves for" , "(Of weather) wet" , "Wet, showery" , "Save your money for this damp day" , "Save your money for a . . . . . day - to buy an umbrella?" .)