Lugano Weather in September
With daytime temperatures of 21°C (70°F) and nighttime lows of 13°C (55°F), September in Lugano brings pleasant temperatures during the day. Do keep in mind that September is part of the rainy season, with frequent and often heavy rainfall.
Rainfall in Lugano in September
Lugano is in the rainy season in September, with rain on around 12 days and an average of 189 mm (7.4 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.
Temperature in Lugano in September
In September, expect pleasant temperatures in Lugano, with highs of 21°C (70°F) and lows of 13°C (55°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows of 13°C (55°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Lugano in September
Expect sunny days throughout the month, with an estimated 198 hours of sunshine. Despite being the rainy season, it could still be a nice time to visit. Rain often arrives later in the day, keeping most of the days sunny.For Lugano itself, May, 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 Lugano's climate page.
Lugano Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
21°C (70°F)
Chance of Rain
41%
Precipitation
189 mm (7.4 in)
Rainy days
12 days
Humidity
70% *
Sunshine
198 hours *
Percentage Sunshine
57% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Lugano typically drop from around 24°C (75°F) at the start of September to approximately 21°C (70°F) by the end. Nights are cool, with lows typically ranging from 11°C (52°F) to 14°C (57°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Lugano in September
Browse day-by-day weather records for Lugano spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Lugano historical weather extremes in September
Based on 49 years of weather observations in Lugano between 1976 and 2025, these are the recorded extremes.
- On September 25, 1983, temperatures climbed to 34°C (93°F), marking the warmest September day on record.
- Lugano experienced its chilliest September day on September 27, 2007, reaching only 10°C (50°F).
- Lugano registered its coldest September night on September 6, 1992, with temperatures dropping to 1°C (34°F).
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 Lugano in September
For Lugano 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Lugano 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 Lugano's climate page.
Temperature Rainfall Sunshine Humidity
See the full Lugano climate overview or explore weather in Switzerland.
