In reply to afearn91:
All you need is a watertight, breathable outer layer Goretex or one of the many other breathables. (trousers + top)
All the rest is stuff you may already have or doesn't cost the earth.
A fleece.
A shirt, wool or synthetic Failing that a wool or synthetic vest and thin fleece over.
Thickish trousers - you may have summer ones but you could always wear these and use a thin pair of long john type stuff under
You don't need expensive, fancy kit - but it may make it more comfortable!.
No one on here can tell you what you need to keep yourself warm. Only you know, and if you don't know your first outing in winter will soon give you a fair bit of knowledge.