Cortona Weather in September
Cortona in September averages 25°C (77°F) during the day and 14°C (57°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Cortona in September
You can expect rain on roughly 9 days based on historical data, averaging 97 mm (3.8 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Cortona in September
September is one of the better months to visit Cortona. Expect 25°C (77°F) during the day and 14°C (57°F) at night. This kind of day-to-night contrast is typical for this time of year. Nights cool down to 14°C (57°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Cortona in September
The city usually sees around 198 hours of sunlight, indicating many sunny days , a great month for sightseeing.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Cortona.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Italy, check out our Cortona's climate page.
Cortona Temperature in September
Min Temperature
14°C (57°F)
Max Temperature
25°C (77°F)
Chance of Rain
31%
Precipitation
97 mm (3.8 in)
Rainy days
9 days
Humidity
71% *
Sunshine
198 hours *
Percentage Sunshine
53% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Cortona typically drop from around 27°C (81°F) at the start of September to approximately 22°C (72°F) by the end. Nights are cool, with lows typically ranging from 12°C (54°F) to 15°C (59°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 Cortona in September
Browse day-by-day weather records for Cortona spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cortona historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Cortona.
- The hottest September day on record in Cortona reached 35°C (95°F) (September 11, 2008).
- Cortona experienced its chilliest September day on September 27, 2020, reaching only 11°C (52°F).
- The coldest night in September in Cortona was on September 29, 2008, with a minimum of 5°C (41°F).
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
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What to Wear in Cortona in September
Warm but pleasant conditions in Cortona in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Cortona 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 Italy, check out our Cortona's climate page.
Temperature Rainfall Sunshine Humidity
See the full Cortona climate overview or explore weather in Italy.
