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Bari in September: Weather, Average temperature and Climate

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

Weather in Bari in September 2025

Good Weather
Warm
☀️
Sunny
🌊
Comfortable water
Are you considering a trip to Bari in September? Well, the weather is usually on your side with an average maximum temperature of +77°F and about 14 sunny days. Just keep in mind that there may be some rain, with an average of 10 rainy days and 52 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+77°F
Avg. max. temperature
+50°F
Min.
+99°F
Max.
52 mm
Total precipitation
70%
Avg. humidity
2 m/s
Avg. wind
14 ☀️
Sunny Days
2 ⛅️
Cloudy
10 🌦
Rainy
Our opinion: Bari has good weather in September.

Average temperature in Bari in September

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

The temperature in September is +81°F on average, with a range between a maximum of +95°F during the day and a minimum of +61°F at night.

The average maximum temperature goes down 5% by the end of the month, compared with the beginning of the month, from +79°F to +77°F.

Is Bari warm or cold in September?

Bari is typically warm in September.

Maximum temperatures go down compared to the previous month from +84°F to +77°F. The minimum temperature also goes down from +73°F to +66°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 Bari:

Water temperature in Bari in September

Water in Bari in September is Comfortable. It varies from +71°F to +82°F, with an average of +76°F. This is almost similar to the air temperature, which averages +77°F.

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

The warmest water temperatures in Bari are reached in August, when the average sea temperature rises to +78°F. The coldest water temperatures are in January, with an average of +56°F.

Can you swim in Bari in September?

The water in Bari in September is pretty comfortable (+76°F in average). Ideal for swimming, especially in outdoor pools and open water. Suitable for recreational and casual swimmers.
🦭
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
Don’t forget a large beach towel or two for drying off.

Climate in Bari in September

Bari weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+84°F+77°F+70°F
Min. temperature
+61°F+50°F+46°F
Max. temperature
+104°F+99°F+93°F
Rainfall
25 mm52 mm60 mm
Wind
2 m/s2 m/s2 m/s
Avg. water temperature
+78°F+76°F+69°F
Humidity
63%70%76%
Air pressure
1012 HPa1014 HPa1016 HPa
Sunny days
201412
Cloudy days
126
Rainy days
81011
Snowy days
000

September typically has worse weather conditions compared to August. It’s getting colder in September. From +84°F in the day, the average maximum temperature lowers to +77°F. Prepare for more rain. Average rainfall goes from 25 mm to 52 mm. Humidity rises from 63% to 70%. The average wind speed doesn’t change much during September, staying around 2 m/s. The days becoming less sunny, going from 20 sunny days in August to 14 in September.

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

Wind

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

The average wind speed is 3 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Bari is gradually increasing during September, going from 2 m/s to 3 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Bari based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in September stands at 27%, leading to total precipitation of around 51 mm. The maximum amount of rainfall per day is around 32 mm, which is moderate rain. On average, there are about 8 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:
Bari wettest month is November, where a typical day has a 43% chance of precipitation and 69 mm of rainfall per day. July, on the other hand, is the driest month with a mere 23% chance of precipitation and 23 mm of rainfall per day.

How was the weather last September in Bari?

This is the weather in Bari in September 2023:
1 September
☀️
+80°F
2 September
☀️
+80°F
3 September
☀️
+82°F
4 September
☀️
+80°F
5 September
☀️
+81°F
6 September
☀️
+81°F
7 September
☀️
+81°F
8 September
☀️
+81°F
9 September
☀️
+80°F
10 September
☀️
+80°F
11 September
☀️
+81°F
12 September
☀️
+85°F
13 September
☀️
+83°F
14 September
☁️
+80°F
15 September
☁️
+80°F
16 September
☁️
+78°F
17 September
☀️
+80°F
18 September
☀️
+85°F
19 September
☀️
+90°F
20 September
☁️
+83°F
21 September
☀️
+84°F
22 September
☀️
+94°F
23 September
☀️
+86°F
24 September
🌧️
+72°F
25 September
🌧️
+74°F
26 September
☀️
+78°F
27 September
☀️
+77°F
28 September
☀️
+76°F
29 September
☀️
+76°F
30 September
☀️
+76°F
In September 2023 Bari had 24 sunny days, 4 cloudy days, and 2 rainy days. The average maximum temperature was +81°F, with an absolute maximum of +95°F and a minimum of +72°F. The average humidity was 69%, with a maximum of 100% and a minimum of 25%. The average wind speed was 3 m/s, with a maximum of 12 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

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

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

The average temperature was the lowest in 1980 (+65°F) and the highest in 2023 (+71°F). The driest year was 1989 with only 375 mm of rainfall, and the wettest year was 2019 with 983 mm.

FAQ

Frequently asked questions about the weather in Bari in September:

Is September a good time to visit Bari?

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

Can you sunbathe in Bari in September?

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

Can you swim in Bari in September?

Yes, the water temperature in Bari in September is considered moderate and enjoyable for most people, averaging around +76°F.

Is Bari rainy in September?

Bari 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 Bari in September?

The amount of sunny days in Bari 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 Bari

Source of the data

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