Spring varies between the countries, but for the countries that alternate between cold winter and hot summer, spring and autumn can be challenging. There are times when mixture of both winter and summer weather is present, and the day can start with summer weather and end with winter weather.
Of course the tyre choice is difficult to make when you have these conditions. I always tell people that you should only drive if you still have the winter tyres on your car. This is one of the reasons that you should change in good time to winter tyres before the chance of any winter weather arriving and you should try to keep the winter tyres on your car to ensure that you won’t end up in a situation where you have snow or slush and summer tyres on your car.
If you are not so dependent of your car, and you can leave the car standing if you find yourself with the wrong tyres for the current weather conditions, then you just refrain from driving until the weather improves. If you are heavily dependent then you just make sure that you change a little bit later. Even though winter tyres are not optimal in summer conditions, they are still a safer option that having summer tyres on ice or snow. Summer tyres will get hard and have basically zero grip or control on ice. Summer tyres will get hard already below freezing, so even if the you don’t have winter conditions, but you have very cold temperatures you should already be cautious when you drive, as you will not have the grip that you might be expecting.
We can never be sure about the weather and it is all down to probabilities, the longer you wait the more probable you are to make the correct decision. However, don’t wait too long, because if you drive with non-studded winter tyres in warm weather, the wear will increase. If you have studded winter tyres too long you might be breaking against local laws and regulations