Dress in light, airy clothing and don’t wear a backpack, strap it on the bicycle rack or carrier. Then it’s usually quite nice, especially if you can get a bit of speed.

Much better than walking when its hot tho.

Then it’s both

You can then tell others you’re scientifically proven to be hot. Win win.

Or windy.

Then again, I set my best time coming home with the rare tailwind (11 miles in <30 min), but a bad headwind is super demoralizing.