The weather in Holland is similar to that in China.

Holland is not as cold as Iceland and other northern European places, so don't worry too much. On the contrary, the Dutch sea breeze is very strong, and it is rainy on weekdays, and it is the same in winter. The lowest temperature should be above 0 degrees, and the river freezes in severe winter, so you can skate. Besides, it's snowing heavily, and there will be some time.

In short, clothes that are cold and windproof will do.