I'll be backpacking South America for several months beginning in late May. I'm trying to figure out what clothes to bring. Temperatures will range from the 80s in the North down to the 30s in Peru or farther South. Strong wind and some rain will probably be present as well. I'll be hiking/camping sometimes (in the warm and cold), but also spending a great deal of time in hostels/around cities.

Items which can double as casual wear are a bonus as it's all going in one pack for 3+ months.

As of now I was thinking this:

- merino long sleeve base layer
- merino bottom base layer
- lightweight fleece (Patagonia R1 or Marmot Reactor)
*I've never worn fleece, and wearing 100 wt fleece in the store felt like it would offer very little warmth. Would a thicker fleece like a Patagonia R2 be too much?

- Hiking pant of some sort (street stylish would be nice)
- Light rain jacket or Wind Jacket (I own a North Face Verto Pro windjacket already, but was looking at real rain option such as the Marmot Mica jacket)

I also considered a puffy of some sort, but decided against it as I thought the above should suffice. Thoughts or suggestion of specific gear would be greatly appreciated!

Thanks!