welcome and hello
now in january madrid is rainy it will be like this until march, then it will return to being rainy by april.it can be just as rainy in april as in winter.theres a saying about this "en abril aguas mil"which comes out to mean as "in april it rains like hell.
:p
also this frequent rain which in fact is more like drizzle also ends in this same month april.may is sunny and then the weather is dry and sunny until mid-october or even november when theres an occasional drought that actully believe it or not goes through winter.this drought that happens about every three years make the whole year dry except april.april never escapes the rain for some reason in this great but dry city.take in note that the dry season is longer than the wet and that the wet season isnt as wet as you might see in belgium with few exceptions of course.mother nature is quite jo***o sometimes
as for temperatures,you wouldnt give a crap about it when youre there because the weather is at least in my humble opinon too ideal for being worried about comfort.i mean its in the sixtys in the day and the upper forties at around midnight.well actually i made mistake because the truly perfect temperature is felt in may in madrid.still in april you still wont give a damn
have fun in the country of my blood and excitence