July is the hottest month in Zermatt with an average temperature of 19°C (66°F) and the coldest is January at -1°C (30°F) with the most daily sunshine hours at 7 in September. The wettest month is July with an average of 130mm of rain. The best month to swim in the sea is in August when the average sea temperature is 26°C (79°F).
 
                     
                     
                     
                     
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Sunrise 07:08
 
                                    Sunset 17:16
 
                                    Sunrise 07:08
 
                                        Sunset 17:16
