I get a kind of "reverse SAD" so for me, summer is a terrible time, and I struggle horribly as everyone around me celebrates the blue skies and hot temps and dry weather...
Now I can see the autumnal weather on the horizon, I already feel better. I wake up more alertly in the mornings, I sleep more soundly, I feel taller and lighter, I am *interested* in the world around me more, I care about stuff more, I laugh and smile more... I no longer wake up feeling grimly determined to drag myself through yet another day with "no air in the air" as it feels to me.
It isn't only "ooh, I love winter!" - it is also that hot dry weather is as difficult for me as the dark cold weather is for the SAD-sufferers...