Early autumn · Weather & things to do
Zermatt in September
Zermatt cools off: highs slip to 58°F (14°C), from 65°F in August, with lows of 41°F (5°C) and about 2.7 in (68 mm) of rain.
It scores 76/100 for comfort, 4th of 12, which makes it a solid shoulder-season month.
- Avg high
- 58°F (14°C)
- Avg low
- 41°F (5°C)
- Rain
- 2.7 in (68 mm)
- Humidity
- 78%
- Cloud cover
- 60%
- Daylight
- ~12 h 18 min
- Comfort score
- 76/100 · Great
What September feels like
Expect mild afternoons around 58°F (14°C), good for long walks.
Nights cool to an average low of 41°F (5°C).
Showers are part of the month, adding up to about 2.7 in (68 mm).
Plan around September
September is shoulder season: good weather, a step below the best months (June – August).
- Comfort slips from 83/100 in August to 76/100.
- Our Zermatt, Andermatt & St. Moritz route recommends Dec – Mar, so September falls outside its suggested window.
What to pack for September
- A warm layer for eveningsnights drop to 41°F
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost picks involve some walking
What to do in Zermatt in September
With conditions on your side, the picks below favor time outside.
Hinterdorf
The old quarter of dark larch barns and granaries raised on stone slabs to keep out mice, a few lanes behind the main street.
Why now September scores 76/100 for comfort, good conditions for being outside.
Matterhorn Museum
Underground museum built as a reconstructed old village, telling the story of the 1865 first ascent and Zermatt's climbing history.
Whymper-Stube
Wood-panelled restaurant on Bahnhofstrasse known for cheese fondue and raclette, named for the Matterhorn's first climber.
Gornergrat Railway
Rack railway running since 1898 from Zermatt to Gornergrat at 3,089 m, with the Matterhorn in view for much of the climb.
Why now Highs near 58°F and 2.7 in of monthly rain make this an easy outdoor pick.
Nearby in September
- Interlaken in September~47 mi · highs 69°F, 4.2 in rain · 6°C (11°F) warmer by day, wetter
- Andermatt in September~57 mi · highs 54°F, 4.7 in rain · 2°C (4°F) cooler by day, wetter
- Lucerne in September~76 mi · highs 68°F, 4.0 in rain · 6°C (10°F) warmer by day, wetter
- Zurich in September~101 mi · highs 67°F, 4.1 in rain · 5°C (9°F) warmer by day, wetter
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~2,251 m to Zermatt's ~1,672 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Zermatt in September: quick answers
Is September a good time to visit Zermatt?
It's a good shoulder-season choice, scoring 76/100 against a best of 84 in June – August. Expect highs of 58°F (14°C) and 2.7 in (68 mm) of rain. Our Zermatt, Andermatt & St. Moritz route recommends Dec – Mar, so September is outside its suggested window.
How cold is Zermatt in September?
Average highs are 58°F (14°C) and average lows 41°F (5°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Zermatt in September?
Some: about 2.7 in (68 mm) of rain falls across September on average, the 5th-driest month of the year. The annual total is about 37.2 in (946 mm).
What should I pack for Zermatt in September?
Bring a warm layer for evenings (nights drop to 41°F), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most picks involve some walking).
Planning Zermatt in September?
Share this September plan with your group, poll everyone on dates and keep the packing list in one place.