I’m invited to an open air concert tomorrow evening, weather says it should be 18 degrees C with clouds and possibly slight rain. Would a T-shirt be fine? Im assuming there will be enough of a crowd to warm it up quite a bit (and i probably wont be sitting around…)
For such cases I usually bring a small and very light rain jacket I can tie around my waist while it is hot/sunny and put on if I get cold/rained on. It has happened to me a few times in my life where I went somewhere in just a T-shirt and then had to do a walk of shame looking and feeling like a wet dog. This jacket has saved me from that a few times.