Depends on where you are. Miserable in hotter places I'm sure, but in Sweden it's quite honestly glorious. Sun up from 03:30 to 22 in Stockholm, and it never quite gets dark. Does wonders for your mood.
Winter, however, is a cold, dark and wet mess. Truly depressive.
Spring and autumn are alright, but suffer from just a little bit too much rain.
Naturally, the climate crisis is making things slightly too warm for comfort now, and we're going to have to retrofit all homes to withstand heat better before too long.