Outdoor solar garden lights work very well during the winter as well if they have enough light during the day to recharge. Even if the sunlight is not so strong, they will still recharge. If you choose affordable solar garden lights, you will have no problem with recharging.
However, many people have had bad experiences in the past because they have chosen cheap solar garden lights. These lights do not have a solar panel that is powerful enough, but this is not the main problem. The main problem is the fact that the materials that they are made of do not behave very well during cold temperatures.
Therefore, the materials might crack due to very low temperatures, and the internal circuit may get affected by water. So, if you want to get a product that will not deteriorate during the winter, you should look for lights that behave well during cold temperatures.