Autumn in the valley can mean three seasons in a day. Mornings start cold, the afternoon sun is strong, and you can still get caught in a late shower on the way home. Heavy coats come out too early; light jackets aren't enough by evening.
Start with a light trench
A cotton trench is the most useful piece for these months. It sheds a shower, blocks the wind on a motorbike, and folds over your arm when the sun comes out.
Shirts over sweaters
Build on an Oxford or poplin shirt rather than a thick knit. Add a fine merino layer in the evening and take it off again indoors.
Mind your shoes
Suede looks right with autumn colours but needs a protector spray before the first wet day. If you only own one pair of boots, make them leather.
