Yes, I am personally surprised by how little people realize how much our environment changes around the equinoxes and solstices. Even for us who live at about 8 degrees north latitude, in an area that is practically a desert, a little rain always falls without fail at every change of season. In fact, this year has been particularly heavy because since September 19 it has rained every afternoon, when it usually only rains about 4 or 5 times a year.
I find particularly very interesting just those equinox days when all human beings have exactly the same number of hours of light and darkness. Perhaps, these are the days when we all behave the same way.