Zermatt weather in September
September is a fair month to visit Zermatt: highs of 11°C (51°F) and about 68 mm (2.7 in) of rain on average. Nights average 1°C (34°F) and cloud cover 60% (NASA POWER, 2001–2025 averages). It is the 5th driest month of the year and the 4th warmest. Compared with August, it is cooler and drier; October brings highs of 6°C (43°F) and 72 mm (2.8 in) of rain.
Is September a good time to visit Zermatt?
fair month Weather score 48/100.
September is a fair month in Zermatt. The weather is usually best in Jun–Aug.
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Does it rain a lot in Zermatt in September?
Some rain is normal: about 68 mm (2.7 in) falls in an average September. It is the 5th driest month of the year.
How warm is Zermatt in September?
Days average 11°C (51°F) and nights 1°C (34°F).
Zermatt weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | -6°C (22°F) | -14°C (6°F) | 63 mm | 76% | least pleasant |
| February | -5°C (23°F) | -14°C (6°F) | 50 mm | 74% | least pleasant |
| March | -2°C (28°F) | -10°C (13°F) | 63 mm | 70% | least pleasant |
| April | 3°C (37°F) | -5°C (23°F) | 70 mm | 69% | least pleasant |
| May | 8°C (47°F) | -1°C (31°F) | 109 mm | 73% | least pleasant |
| June | 13°C (55°F) | 4°C (38°F) | 97 mm | 66% | best |
| July | 15°C (58°F) | 5°C (41°F) | 96 mm | 59% | best |
| August | 14°C (58°F) | 5°C (41°F) | 99 mm | 60% | best |
| September | 11°C (51°F) | 1°C (34°F) | 68 mm | 60% | fair |
| October | 6°C (43°F) | -2°C (28°F) | 72 mm | 68% | least pleasant |
| November | 0°C (31°F) | -8°C (18°F) | 91 mm | 75% | least pleasant |
| December | -5°C (24°F) | -13°C (9°F) | 68 mm | 76% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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