Tomato skins with scratchy marks

Hello,
Can anybody please advise on what's causing these marks. Tomato is Alicante, seems to have grown well but many are now getting these marks, which feel rough to the touch. NW England, and someone said it might be colder weather doing it. They are also very slow to ripen. Mostly grown in pots in a plastic mini-greenhouse thingy, but outside for some of the time. The few that ripened early were good.

Any help appreciated - I am new to this.

Cherry tomatoes (variety Nectar) grown in growbag have done well under same conditions, no problems and all gone now, delicious.

Thanks for any comments.

 

Thanks JWK.
Is it ok to eat the skins in that state, do you think? They don't look that great...

 

Welcome to Gardeners Corner

Won't hurt you, but you don't really need to eat the skins anyway, just plunge them into boiling water for a minute and then pop them into cold water. Skins will just peel off