average monthly temperature zermatt
Zermatt weather averages. Check out the Zermatt weather averages before you book your next holiday to Switzerland. The warmest months in Zermatt are July and August with an average maximum temperature of 9Â°C. The sunniest months are June, July and August with on average 7 hours of bright sunshine per day. The month with the least number of days with some rain is October with 14 days.