Autumn (!) holiday capsule wardrobe ideas, please

[MissBeans]

Yes, I know, but the weather is shit. It's still supposed to be summer! But we're 'staycationing' this year and I have no idea what to do wear.

I need to buy just about everything from scratch.

Thanks

[RemusLupinsBiggestGroupie]

What kind of holiday?

Jeans
Trainers
Converse
Wellies
T-shirts
Jumpers
Raincoat

Surely you have some of the above already though?