What to wear when traveling to Schilthorn in Switzerland in July

The average temperature in Switzerland in July is 14℃ ~ 25℃. Although the temperature is not bad at ordinary times, it is very cold at high places, and the wind is very strong on the Schilthorn. The last time I went there Even though I was wearing a fleece hiking jacket, it still felt a little cold. I suggest you wear a vest underneath and that should be enough! Have a nice trip!