Ireland truly is the Emerald Isle, all winter long.
They can thank Cape Hatteras, NC for that, for sending them the Gulf Stream. County Cork in the south of Ireland has trees that look a lot like palm trees, and a maritime climate along the lines of San Francisco. Wouldn’t call it warm, but rarely cold. They do get snow up in the hills and mountains, County Wicklow and so forth, but not persistent snow cover that would show in a satellite time lapse.