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Chiasso Weather in September
September in Chiasso brings high temperatures, with daytime highs of 22°C (72°F) and nights around 14°C (57°F). It's part of the rainy season, with 171 mm (6.7 in) of rainfall on average, so an umbrella or poncho is a good idea.
Rainfall in Chiasso in September
Chiasso is in the rainy season in September, with rain on around 11 days and an average of 171 mm (6.7 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.
Temperature in Chiasso in September
September in Chiasso sees highs of 22°C (72°F) and lows of 14°C (57°F) overnight. Overall, the month follows a fairly predictable daily temperature pattern. Nights drop to around 14°C (57°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Chiasso in September
The month brings about 189 hours of sunlight, offering a comfortable mix of sun and rainy moments.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Chiasso Temperature in September
Min Temperature
14°C (57°F)
Max Temperature
22°C (72°F)
Chance of Rain
37%
Precipitation
171 mm (6.7 in)
Rainy days
11 days
Humidity
74% *
Sunshine
189 hours *
Percentage Sunshine
*
* Data from: Como, Italy (5 KM, 3 Miles).
Chiasso Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Chiasso - and find the best time to visit.
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
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Chiasso in September
For Chiasso in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
What To Do in Chiasso in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Camping6/10
Chiasso 3-Day Forecast
More climate data for Chiasso
Temperature Rainfall Sunshine Humidity
See the full Chiasso climate overview or explore weather in Switzerland.
Popular in September
Where to go in September - average daytime high across popular destinations.
Zürich
20°C (68°F) Crans-Montana15°C (59°F) Engelberg
15°C (59°F) Nendaz15°C (59°F) Saas-Fee12°C (54°F) Davos13°C (55°F) Grindelwald13°C (55°F) Zermatt11°C (52°F) Bucket list
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The 5 most scenic train journeys in Switzerland
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