At What Temperature Should Winter Tires Be Replaced?
3 Answers
When the average temperature drops below 4 degrees Celsius, it's time to switch to winter tires. This is because all-season tires become harder in winter, leading to reduced friction coefficients, which affects the tire's grip and wear performance. Principle of Winter Tires: The tread that contacts the road surface uses a special silica-based compound to ensure the tire remains exceptionally soft even at extremely low temperatures, providing excellent ice grip. The tread pattern typically employs cross-Z-shaped siping technology, which not only improves braking performance on snow and ice, shortening braking distances, but also delivers ideal traction. Description of Winter Tires: These are tires designed for use in snowy conditions. The rubber tires may have metal studs to enhance grip. In colder regions prone to snow accumulation, such as Russia, people use these tires during winter.
It is generally recommended to switch to snow tires when the temperature drops to around 7 degrees Celsius. As a southerner who frequently travels to the north in winter, I changed my tires in early October last year when the temperature dropped to 8 degrees, and I wasn’t worried at all during the first snowfall in November. Below 7 degrees, the rubber of regular tires hardens, reducing grip, while snow tires, with their special compound, remain softer in low temperatures, significantly shortening braking distances. Especially when there are large temperature differences between day and night or when temperatures drop earlier in mountainous areas, I prepare one or two weeks in advance—don’t wait until the roads are icy to act. Checking long-term local weather forecasts is very helpful; temperatures consistently below 7 degrees are a clear signal to switch. Remember, after changing tires, you should also check and adjust the tire pressure—slightly lowering it in winter ensures a larger contact area for better stability in snowy conditions.
For family trips, 7°C is a reliable switching point. After having kids, I pay more attention to safety. When the car display shows the morning temperature drops to around 7°C, I immediately go to the garage to switch to winter tires. Above this temperature line, all-season tires can barely cope, but they become prone to slipping when it rains or frost forms. The tread depth and material of winter tires can increase wet road traction by over 30%, making school runs much more reassuring. Another advantage of changing early is avoiding the winter maintenance rush, saving you from long queues. After installation, don't forget to get a wheel alignment to ensure even wear – every penny spent on safety is worth it.
