Rainy days can be sad are glomy or relaxing and calm depending on your personality. In my case, they are so relaxing. It actually brings me so much joy when it rains. Is the sound of the water hitting the roof. The smell that is felt everywhere is a little humid. The way the plants seem to grow overnight after a small storm. I love those days. But I would love them even more if I didn't have to go anywhere.
When it starts raining and you have to run errands or catch the bus, then the day becomes unbearable. There is a constant reminder that you are going to catch a cold due to the water falling from the sky and the wind that is almost taking you up. Now you don't only have a hard day like you would any other day of the week. But you are also wet, cold, and moody. That's why rainy days only work out when you can stay home and relax, maybe read a book or watch TV. The moment you put one foot out the door, your day is ruined!