Sierre Weather in September
September in Sierre brings moderate temperatures, with highs of 14°C (57°F) and nights dropping to 3°C (37°F). Rainfall is on the higher side this month, averaging around 121 mm (4.8 in), so keep a rain jacket handy.
Rainfall in Sierre in September
Past climate data indicates that roughly 14 days will see rain, totalling around 121 mm (4.8 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Sierre in September
September in Sierre brings moderate temperatures, with highs of 14°C (57°F) and nights around 3°C (37°F). The difference between afternoon and evening temperatures is usually noticeable. At 3°C (37°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Sierre in September
The days are predominantly sunny, with an estimated total of around 210 hours of sunshine. Despite the cool temperatures, these sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.
Wind Speed in Sierre in September
September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.For Sierre itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Sierre's climate page.
Sierre Temperature in September
Min Temperature
3°C (37°F)
Max Temperature
14°C (57°F)
Chance of Rain
47%
Precipitation
121 mm (4.8 in)
Rainy days
14 days
Humidity
71% *
Windspeed
2 m/s (4 knots) *
Sunshine
210 hours *
Percentage Sunshine
65% *
Best Places in Switzerland in September
Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Sierre in September
The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Sierre in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Switzerland, check out our Sierre's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Sierre climate overview or explore weather in Switzerland.
