PLEASE NOTE that hiking on the glacier requires mountain experience and special equipment (crampons, ice ax, ropes etc.) Hiking in "very warm" weather during summer season can be dangerous because
The best time for hiking is usually from the end of May till the end of June, then September till the start of October. July and August are very hot and the glacier can melt very fast in the afternoon when the sun is out. It is necessary to start early in the morning to be sure you will get back down as soon as possible. However, it's pretty cold minus degrees throughout the year
Due to the easy accessibility, the mountain is often a bit busy. The cable car is often very full of skiers. However, it's a perfect climb for beginners in such a height. To avoid crowds and the melting glaciers take the first cable car to the Kleinmatterhorn.