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Florence in September: Weather, Average temperature and Climate

Discover the weather for Florence in September and if it’s a good time to travel (based on historical data).
Check flight prices to Florence on Avionero:
September

Weather in Florence in September 2025

Good Weather
Warm
☀️
Sunny
Weather for Florence in September is typically good with an average maximum temperature of +77°F during the day, and approximately 13 sunny days monthly. Typically, there are about 9 rainy days with the total average precipitation that falls in September around 80 mm. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+77°F
Avg. max. temperature
+43°F
Min.
+93°F
Max.
80 mm
Total precipitation
68%
Avg. humidity
1 m/s
Avg. wind
13 ☀️
Sunny Days
5 ⛅️
Cloudy
9 🌦
Rainy
Our opinion: Florence has good weather in September.

Average temperature in Florence in September

Here are the expected maximum, average and minimum temperatures in Florence for September based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in September is +86°F with a maximum of +93°F and a minimum of +55°F.

The average maximum temperature goes up 10% by the end of the month, compared with the beginning of the month, from +84°F to +88°F.

Is Florence warm or cold in September?

Florence is typically warm in September.

Maximum temperatures go down compared to the previous month from +86°F to +77°F. The minimum temperature also goes down from +66°F to +61°F.

It’s generally warm, but pack a long-sleeve shirt for evenings.

Take a look at how September is compared to other months in Florence:

Climate in Florence in September

Florence weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+86°F+77°F+68°F
Min. temperature
+52°F+43°F+34°F
Max. temperature
+106°F+93°F+91°F
Rainfall
39 mm80 mm103 mm
Wind
1 m/s1 m/s1 m/s
Humidity
63%68%76%
Air pressure
1013 HPa1015 HPa1016 HPa
Sunny days
17139
Cloudy days
457
Rainy days
7912
Snowy days
000

September typically has worse weather conditions compared to August. It’s getting colder in September. From +86°F in the day, the average maximum temperature lowers to +77°F. Prepare for more rain. Average rainfall goes from 39 mm to 80 mm. Humidity rises from 63% to 68%. The average wind speed doesn’t change much during September, staying around 1 m/s. The days becoming less sunny, going from 17 sunny days in August to 13 in September.

Next month (October) brings a further decline in the weather.

Wind

Wind speed in Florence in September based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Florence is gradually increasing during September, going from 1 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Florence based on historical data.
Last Year
Historical Data
Total precipitation in September is about 44 mm, with a 17% chance of rain on a typical day. The maximum amount of rainfall per day is around 30 mm, which is moderate rain. On average, there are about 5 rainy days during September, so prepare to bring an umbrella.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Florence wettest month is November, where a typical day has a 47% chance of precipitation and 115 mm of rainfall per day. July, on the other hand, is the driest month with a mere 19% chance of precipitation and 27 mm of rainfall per day.

How was the weather last September in Florence?

This is the weather in Florence in September 2023:
1 September
☀️
+84°F
2 September
☀️
+91°F
3 September
☀️
+93°F
4 September
☀️
+89°F
5 September
☀️
+84°F
6 September
☀️
+87°F
7 September
☀️
+88°F
8 September
☀️
+91°F
9 September
☀️
+91°F
10 September
☀️
+92°F
11 September
☀️
+92°F
12 September
☀️
+89°F
13 September
☀️
+82°F
14 September
☀️
+87°F
15 September
☀️
+89°F
16 September
☀️
+86°F
17 September
☀️
+88°F
18 September
☀️
+87°F
19 September
☀️
+85°F
20 September
☀️
+79°F
21 September
🌧️
+82°F
22 September
🌧️
+79°F
23 September
☀️
+76°F
24 September
☁️
+75°F
25 September
☀️
+77°F
26 September
☀️
+81°F
27 September
☀️
+84°F
28 September
☀️
+85°F
29 September
☀️
+87°F
30 September
☀️
+88°F
In September 2023 Florence had 27 sunny days, 1 cloudy days, and 2 rainy days. The average maximum temperature was +86°F, with an absolute maximum of +93°F and a minimum of +75°F. The average humidity was 66%, with a maximum of 100% and a minimum of 31%. The average wind speed was 2 m/s, with a maximum of 9 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

This is how Florence climate has changed over the last 43 years.

The climate in Florence in September has not changed that much over the last 43 years.

The average temperature was the lowest in 1980 (+63°F) and the highest in 2022 (+72°F). The driest year was 2011 with only 499 mm of rainfall, and the wettest year was 2019 with 1440 mm.

FAQ

Frequently asked questions about the weather in Florence in September:

Is September a good time to visit Florence?

September is a really good time to go to Florence. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Florence.

Can you sunbathe in Florence in September?

September is warm in Florence. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Florence rainy in September?

Florence is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Florence in September?

The amount of sunny days in Florence during September varies; prepare for a mix of clouds and sun.

Other cities in Italy

Check out the weather for other cities in Italy.

Monthly weather in Florence

Source of the data

For this page, we’ve looked at the typical weather in Florence, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.