The winter problem can easily be solved with proper clothing. There are lightweight rain trousers you can wear above your normal clothes when it rains or snows, and of course a jacket with good ventilation.

The summers are more or less solved with e-bikes: you spend less energy paddling, while still profiting from airflow. I hear France has a subsidy for them. Unless you're in Spain or Southern Italy I guess, or there's a heatwave going on.