April 21 days in Europe trip

Take the light but sturdy water proof hood jacket that can cover your neck; layer as needed underneath that. You need shoes with good sole support. I
I wear denim and cotton slacks like Dockers. Everyone has a different thermostat when it comes to hot warm cold but agree when it rains.

Layers layers layers. We did this tour in April 2018. On the coldest, wettest day (in Lauterbrunnen) I wore pair of corduroy jeans, a long sleeved top, a cardigan sweater, topped with a hoodie type windbreaker that had been sprayed with water-proofing. All over my wonderful silk long johns. I think I had a pair of cheapie dollar store gloves, as well.

Here's a copy of my usual packing list:

3 pairs of slacks - which on this trip included the aforementioned corduroy pants. Usually I don't have a pair that heavy.
5 tops, 3 long sleeved, two short sleeved. Mixed colors, but all went with my decidedly neutral pants.
one cardigan
one very light jacket
one windbreaker, sprayed with water proofing
2 bras
4 pairs of underpants
4 pairs of socks
2 pairs of shoes
1 set of silk long underwear – which I was definitely glad to have in Switzerland
1 set of “comfy clothes,” including a tee shirt and a pair of light jersey pants. These were my sleep clothes, as well as my lounging-around-the-room clothes.
1 hat – a white fedora I picked up on a tour in England in 2016

Thanks I thought it might be chilly. Was it warm in Italy?

You will notice that it is warmer in Italy compared to all the others

Yes, it was warm in Italy, especially in Rome. I think one of our group wore shorts in Rome. I was never uncomfortably warm, but then, I never am.

As I recall the only place we had rainy weather was in Switzerland, and then it was just mist which upgraded to drizzle.

I just reread my trip report from our 2018 tour, and evidently it was quite warm in Italy, up to 20 degrees F above normal!