Does your skin really change with the seasons? Well, yes and no.
I hear from clients all the time that my skin is combination in one season then oily in the next or combination in one season then dry in the next.
The truth is that the condition changes but the skin type never does. Your skin type, like dry (lacking pores), combination (visible pores in t-zone) or oily (visible pores all over) is what you are born with.
A condition like dehydration (lacking water) can definitely change with the seasons. For example in the colder months when the air is cold and drying up all the water in your skin. You may feel this way even if you have visible pores all over.
So does that mean in the spring and summer your skin does produces more oil? Well, In the warm weather the skin around pores are more relaxed. Also the heat stimulates sebum or oil. Although, you would only produce oil where you already have visible pores. You may also be feeling perspiration mixed in with the sebum or oil production causing you to feel more oily than usual.
If you have truly dry skin (lacking pores) you may not feel this way at all, even in the warm weather.
Cooler weather like the fall and winter could actually cause the skin to feel drier or like it would if it were lacking pores. Because your skin is a living thing the skin around the pore opening may shrink in the cold weather causing it to feeling tighter.