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Palermo in September: Weather, Average temperature and Climate

Take a look at past year’s weather for Palermo in September and see if it is worth visiting.
Check flight prices to Palermo on Avionero:
September

Weather in Palermo in September 2025

Good Weather
Warm
🌧️
Rainy
🌊
Warm water
Are you considering a trip to Palermo in September? Well, the weather is usually on your side with an average maximum temperature of +81°F and about 10 sunny days. Just keep in mind that there may be some rain, with an average of 12 rainy days and 61 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+81°F
Avg. max. temperature
+57°F
Min.
+104°F
Max.
61 mm
Total precipitation
70%
Avg. humidity
1 m/s
Avg. wind
10 ☀️
Sunny Days
7 ⛅️
Cloudy
12 🌦
Rainy
Our opinion: Palermo has good weather in September.

Average temperature in Palermo in September

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

The temperature in September is +82°F on average, with a range between a maximum of +91°F during the day and a minimum of +64°F at night.

The average maximum temperature goes down 7% by the end of the month, compared with the beginning of the month, from +81°F to +79°F.

Is Palermo warm or cold in September?

Palermo is typically warm in September.

Maximum temperatures go down compared to the previous month from +86°F to +81°F. The minimum temperature also goes down from +75°F to +72°F.

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

September is one of the warmest months in Palermo, here is the comparison with other months:

Water temperature in Palermo in September

Water in Palermo in September is Warm. It varies from +73°F to +82°F, with an average of +78°F. This is almost similar to the air temperature, which averages +81°F.

The water temperature in September is one of the warmest of the entire year:

The warmest water temperatures in Palermo are reached in August, when the average sea temperature rises to +80°F. The coldest water temperatures are in February, with an average of +58°F.

Can you swim in Palermo in September?

You can absolutely swim in Palermo in September, the water is warm (+78°F in average), similar to heated pools. Suitable for most people, including children and the elderly.
🦭
Cold
Below +61°F
🏄‍♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Bring your swimming suit, sunscreen and your favorite inflatable pink flamingo.

Climate in Palermo in September

Palermo weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+86°F+81°F+75°F
Min. temperature
+57°F+57°F+50°F
Max. temperature
+108°F+104°F+97°F
Rainfall
20 mm61 mm84 mm
Wind
1 m/s1 m/s1 m/s
Avg. water temperature
+80°F+78°F+72°F
Humidity
64%70%75%
Air pressure
1013 HPa1014 HPa1015 HPa
Sunny days
22106
Cloudy days
2710
Rainy days
61214
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 +81°F. Prepare for more rain. Average rainfall goes from 20 mm to 61 mm. Humidity rises from 64% to 70%. The average wind speed doesn’t change much during September, staying around 1 m/s. The days becoming less sunny, going from 22 sunny days in August to 10 in September.

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

Wind

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

The average wind speed is 2 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Palermo is gradually decreasing during September, going from 2 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Palermo based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in September stands at 20%, leading to total precipitation of around 27 mm. The maximum amount of rainfall per day is around 13 mm, which is considered light rain. On average, there are about 6 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:
Palermo wettest month is March, where a typical day has a 48% chance of precipitation and 90 mm of rainfall per day. July, on the other hand, is the driest month with a mere 13% chance of precipitation and 8 mm of rainfall per day.

How was the weather last September in Palermo?

This is the weather in Palermo in September 2023:
1 September
☀️
+81°F
2 September
☁️
+83°F
3 September
☀️
+84°F
4 September
☁️
+81°F
5 September
☁️
+81°F
6 September
☁️
+82°F
7 September
☀️
+83°F
8 September
☁️
+83°F
9 September
☀️
+82°F
10 September
☀️
+83°F
11 September
☀️
+85°F
12 September
☀️
+84°F
13 September
☀️
+84°F
14 September
☁️
+84°F
15 September
☀️
+86°F
16 September
☁️
+83°F
17 September
☀️
+87°F
18 September
☀️
+87°F
19 September
☁️
+87°F
20 September
☁️
+83°F
21 September
☀️
+89°F
22 September
☀️
+91°F
23 September
☁️
+82°F
24 September
☁️
+77°F
25 September
☁️
+76°F
26 September
🌧️
+75°F
27 September
☀️
+80°F
28 September
☀️
+80°F
29 September
☁️
+78°F
30 September
☀️
+79°F
In September 2023 Palermo had 16 sunny days, 13 cloudy days, and 1 rainy days. The average maximum temperature was +82°F, with an absolute maximum of +91°F and a minimum of +75°F. The average humidity was 67%, with a maximum of 100% and a minimum of 28%. The average wind speed was 2 m/s, with a maximum of 7 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

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

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

The average temperature was the lowest in 1980 (+68°F) and the highest in 2012 (+75°F). The driest year was 1989 with only 353 mm of rainfall, and the wettest year was 2021 with 1977 mm.

FAQ

Frequently asked questions about the weather in Palermo in September:

Is September a good time to visit Palermo?

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

Can you sunbathe in Palermo in September?

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

Can you swim in Palermo in September?

Yes, you can swim in Palermo in September, the water temperature averaging at +78°F. This temperature is considered warm and comfortable for most swimmers.

Is Palermo rainy in September?

Palermo 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 Palermo in September?

The amount of sunny days in Palermo 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 Palermo

Source of the data

For this page, we’ve looked at the typical weather in Palermo, 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.