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Lake Como Weather in September
Thinking of visiting Lake Como in September? Expect pleasant temperatures reaching 20°C (68°F) during the day, dropping to 12°C (54°F) at night. Heavy showers are common during the rainy season.
Rainfall in Lake Como in September
As part of the rainy season, Lake Como sees around 12 days of rain in September, with an average of 197 mm (7.8 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Lake Como in September
September in Lake Como brings pleasant temperatures, with highs of 20°C (68°F) and nights around 12°C (54°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows of 12°C (54°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 Lake Como in September
The month experiences a moderate amount of sunlight, with 189 hours of sunshine. This provides a nice balance between sunshine and rain.Should you favor a climate that's both dry and comfortably warm, July typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Lake Como Temperature in September
Min Temperature
12°C (54°F)
Max Temperature
20°C (68°F)
Chance of Rain
40%
Precipitation
197 mm (7.8 in)
Rainy days
12 days
Humidity
74% *
Sunshine
189 hours *
Percentage Sunshine
*
* Data from: Como, Italy (25 KM, 15 Miles).
Lake Como Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Lake Como - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Lake Como typically drop from around 24°C (75°F) at the start of September to approximately 20°C (68°F) by the end. Nights are cool, with lows typically ranging from 10°C (50°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 records for Lake Como in September
Browse day-by-day weather records for Lake Como spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Lake Como historical weather extremes in September
Based on weather observations in Lake Como between 1976 and 2026, these are the recorded extremes during September.
- The warmest day in September was on September 5, 2026, with a maximum of 31°C (88°F).
- The lowest daytime temperature in September was 10°C (50°F), recorded on September 30, 2022.
- The coldest night in September in Lake Como was on September 2, 1992, with a minimum of -2°C (28°F).
- The heaviest September precipitation occurred on September 19, 2021, when 84 mm (3.3 in) of precipitation fell.
Best Places in Italy in September
Find out more about the weather in Italy and which places have the best travel conditions in this month. See all of Italy 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 Lake Como in September
For Lake Como 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. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Lake Como in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Camping6/10
Lake Como 3-Day Forecast
More climate data for Lake Como
Temperature Rainfall Sunshine Humidity
See the full Lake Como climate overview or explore weather in Italy.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
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The 10 most beautiful historical towns in Italy
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