I’m from the UK. In winter my skin is so clear and amazing. As soon as the sun hits, I end up getting pimples on my face

I’m very strict with my skincare routine. I’ve stopped wearing makeup unless it’s an occasion. So if I’m out in the sun I will 100% wear sunblock. But no makeup. I cleanse my face morning and night - and will follow with some sort of acne treatment - not all the time though as I like to let my skin breathe. I follow the same routine in winter also. But summer time - or if the sun is just out, and I’m out in it - a few days later I will get spots...

Side note: I have started laser in August last year - this has helped my skin. And I don’t tend to get spots with this at all.

Does this happen to anyone else? Clear skin in winter and then pimples in summer?

If so, how do you prevent it? As I’ve tried the whole no makeup, cleansing morning and night etc?