Thermal tights and top, thermal running beanie, smartwool thermal running stocks, snow gaters, merino flexi-chute or balaclava, mittens. Keeps me good to at least -18C.
Running
A place for runners.
Oh and a winter running jacket obviously when it's really cold. As long as I keep my core insulated and my ears/head covered, I'm basically impervious to cold after the first couple of miles.
I'm one of those people that is almost always warm, and I can run through pretty extreme heat because I sweat like a shower, so I might just be slightly above average in body temp or something. Down to 0C I'll basically just wear tights and a hat and I'm generally fine. The balaclava, jacket, etc is really for closer to -20 and snow.
I envy you, I definitely tend towards feeling too cold. But at the same time as you said after a few miles it gets warmer, so getting the balance right isn't always easy. But at least where i am at it doesn't get -20°C. Keeping my ears/fingers warm is definitely one of the important things.
Ears is always a bit harder, because the band of my shokz headphones can make things a bit akward, since just putting on a hat above them imo isn't as comfortable since it puts some pressure on them. The solution that worked so far is that i got a headband, where i cut small holes behind the ears to route the headphone band through.
I have little clippy ear buds that clip on my ears and don't go inside my ear canals (they basically hang from my earlobes and just inside the ear on the bottom), so the pressure doesn't bother them, but you could also try maybe a looser, thicker hat too. And I've seen people with literal ear covers, like they just cover their ears and nothing else and aren't connected. I guess then you can wear whatever buds or banded earphones and a hat over the ears if you use those.
Actually... I think I just realized why the hell I see people wearing those things. I thought they were just goofy people, I didn't realize it was probably for earphone comfort. Lol
I tend to be warm when running. Around 40 F I’ll put on gloves, and around 32 F I’ll put on a light wool jacket and a beanie. I don’t run outside if it’s colder than that. I never wear long pants; my legs are always warm from the exercise.
Long sleeves below 40F t-shirts otherwise. Tights below 30F-shorts otherwise. I get hot and sweat A LOT so I like less coverage. Below 20F I'll put on 2 long sleeves or a thicker hoodie. Light gloves go on below 30F, thick gloves below 20F. Snow cleats go on if it snows. A hat below 30F too depending on how I feel. As a rule of thumb, if I step outside and I'm hot/cold I'll change accordingly.
I chafe a lot, so I'm pretty specific about the shorts I wear. When it gets cold I tried switching to tights but I found that no matter what kinda tights I was wearing, I still got chaffed pretty bad. I even had runs where pubic hair from my left leg got tied in a knot with pubic hair from my right leg.
The last 2 years I have just been using my summer shorts, and I just put loose sweats on top of them. It worked from a chafing perspective, but they were heavy, and picked up a lot of slush from dragging on the sometimes snowy trail.
This winter I will do basically the same thing, but I got slightly nicer running pants since the sweats hit end-of-life.
Being male I have no hips and so tights just wriggle their way down my waist as I run. I feel like a penguin after a short while and spend a bunch time trying to pull them back up as I’m running.
The result is awful chafing between the legs.
If I’m wearing tights I usually spread the body glide pretty heavily between my legs, which helps a little.
Chaffing truly is the worst, hope the new ones work well.
under 10c or feels like, thin gloves and short sleeved shirt with singlet underneath.
5c and below, long sleeved shirt and tights, and warm hat.
closer to 0c may wear an extra shirt over top of long sleeves.
edit: material is whatever quick dry sports material is available. ive not seen a significant difference in performance between top end (2xu, under armor) and no name dept store / ali amazon / temu brands