Originally Posted by slowandsteady
The easiest way to make sure you are getting adequate water intake is to weigh yourself before and right after the workout. If you are the same you are fine.
And when I do exactly that, I find that I need to consume the same amount of liquid no matter what time of year it is.
That said, I'm comparing summer-time temps (20C/68F) with winter temps (-20C/-4F). I'm not talking about temps much warmer than 20C in the summer because up here temps might get above that a small, inconsequential, number of times ... and usually when I'm working, not when I'm cycling.