Is a genuine leather jacket warm enough for late autumn and early winter?

Hello forum community! With winter fast approaching, I’m trying to upgrade my cold-weather wardrobe. I’ve always worn heavy wool coats or bulky down parkas during late autumn, but I’m honestly tired of looking like a walking sleeping bag every time I step outside. I love the sharp, clean look of genuine leather, but I’m a bit skeptical about how well it actually holds up when temperatures start dropping close to freezing. For those of you who wear them daily during the chillier months, can a real leather piece keep you warm on its own, or is it strictly meant for mild spring weather unless you wear five layers underneath?

Thank you for clarifying that, the thermal layering tip sounds like exactly what I need!