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Is the weather good in Italy in September 2025?
Good Weather
☀️
SunnyFor the past few decades, the average daily temperatures in Italy during September have been around +25°C.
In Italy the temperature rarely varies more than seven degrees between the different parts with the highest temperature +25°C in Catania to +23°C in Ancona. So you should be able to pack for similar conditions wherever you go in the country.
Temperature, wind and humidity in September
Average
Alghero
Ancona
Bari
Bologna
Brindisi
Cagliari
Catania
Florence
Genoa
Lamezia Terme
Milan
Olbia
Palermo
Pescara
Pisa
Rimini
Rome
Trieste
Venice
Verona
☀️
+25°C
Avg. max. temperature
+2°C
Min.
+40°C
Max.
79 mm
Total precipitation
71%
Avg. humidity
2 m/s
Avg. wind
13 ☀️
Sunny Days
5 ⛅️
Cloudy
9 🌦
Rainy
Our opinion: Italy has good weather in September.
Italy in September – what city is the…
- rainiest? Bologna, with an average of 6 mm of rain and humidity of 69%;
- warmest? Catania, with daytime temperatures averaging +28°C;
- windiest? Genoa, with an average of 3 m/s;
- coolest? Ancona, with daytime temperatures averaging +23°C;
How good is the weather in Italy in September?
During September, the Italy usually offers good weather overall, with air pressure around 1015 HPa. This means you may encounter some rainy weather too – September brings around 69 mm of rain and winds averaging 2 m/s. Humidity ranges between 67% in Trieste and 75% in Verona. In general, it tends to be more humid near the sea and lake and drier inland.
How warm is it in Italy during September?
The weather is usually pretty good this time of year, with daytime temperatures around +25°C.
This is how hot it usually is in September
The average daily temperatures above don't tell you everything about how hot it can be in Italy. For example, cold nights can make a big difference for those staying in tents or unheated houses. Extra hot days, on the other hand, can make a big difference for those who plan to engage in demanding physical training or competition. So here are some more temperatures for September:
Average
Alghero
Ancona
Bari
Bologna
Brindisi
Cagliari
Catania
Florence
Genoa
Lamezia Terme
Milan
Olbia
Palermo
Pescara
Pisa
Rimini
Rome
Trieste
Venice
Verona
- Average maximum temperature for the month: +25°C;
- Average minimum temperature for the month: +17°C;
- Highest monthly temperature: +27°C;
- Lowest monthly temperature: +16°C;
Monthly temperatures:
Average
Alghero
Ancona
Bari
Bologna
Brindisi
Cagliari
Catania
Florence
Genoa
Lamezia Terme
Milan
Olbia
Palermo
Pescara
Pisa
Rimini
Rome
Trieste
Venice
Verona
- Warmest: July with an average +29°C during the day;
- Coldest: January with an average +11°C of the day;
- Hottest month in hottest city: July in Catania;
- Coldest month in coolest city: January in Ancona;
Can you swim in Italy in September?
Here are the minimum and maximum water temperatures in cities in Italy in September:
Pescara
🏊
Comfortable20°C - 28°C
Trieste
🏊
Comfortable20°C - 26°C
Ancona
🏊
Comfortable20°C - 27°C
Venice
🏊
Comfortable20°C - 27°C
Alghero
🏊
Comfortable21°C - 26°C
Genoa
🏊
Comfortable21°C - 25°C
Pisa
🏊
Comfortable21°C - 26°C
Cagliari
🏊
Comfortable21°C - 27°C
Bari
🏊
Comfortable22°C - 28°C
Palermo
👙
Warm23°C - 28°C
Catania
👙
Warm23°C - 28°C
You can definitely swim in Pescara, Trieste, Ancona in September, with the water temperature of +20°C and up.
Winds in Italy during September
Wind speed in Italy in September based on historical data:
Average
Alghero
Ancona
Bari
Bologna
Brindisi
Cagliari
Catania
Florence
Genoa
Lamezia Terme
Milan
Olbia
Palermo
Pescara
Pisa
Rimini
Rome
Trieste
Venice
Verona
September tends to offer light winds averaging 2 m/s. However, coastal cities may experience breezes during the mornings and afternoons.
Comparison between cities in September:
- Highest average wind speed: Olbia with 3 m/s;
- Lowest average wind speed: Bologna with 1 m/s;
- Windiest day of the month: Genoa with 4 m/s;
- The least windy day of the month: Bologna with 1 m/s;
Humidity and precipitation in Italy in September
Amount of rainfall in mm during September in Italy based on historical data:
Average
Alghero
Ancona
Bari
Bologna
Brindisi
Cagliari
Catania
Florence
Genoa
Lamezia Terme
Milan
Olbia
Palermo
Pescara
Pisa
Rimini
Rome
Trieste
Venice
Verona
September tends to be an extremely humid month with 72% humidity and 69 mm rainfall. In general the humidity tends to be a little lower in mountainous regions and more humid closer to water.
Comparison between cities in September:
Average
Alghero
Ancona
Bari
Bologna
Brindisi
Cagliari
Catania
Florence
Genoa
Lamezia Terme
Milan
Olbia
Palermo
Pescara
Pisa
Rimini
Rome
Trieste
Venice
Verona
- Highest average rainfall: Bologna with 194 mm;
- Lowest average rainfall: Cagliari with 25 mm;
- Most number of rainy days: Palermo with 12 rainy days;
- Least number of rainy days: Cagliari with 4 rainy days;
- Highest risk of rain during the day: Palermo with 40%;
- Least risk of rain during the day: Cagliari with 13%;
- Highest average humidity: Verona with 75%;
- Lowest average humidity: Trieste with 67%;
Tips for traveling to Italy in September
Looking for some tips for traveling to the sun, snow, or whatever you're aiming for Italy? Activities, weather, and clothing are closely linked. In addition, it's important to pack only what you really need so you don't have to worry about heavy packing or paying extra baggage fees.
Here is some advice on what to pack and what kind of activities you can do in the Italy based on the weather that September is expected to bring. The advice applies to the country as a whole – local weather and possible activities may differ somewhat.
Sunny, mild weather with light winds and very high humidity in September
Pack right for September
The weather makes a difference when it comes to packing - especially which items should go in your suitcase. The tips below are designed to help you pack light and right without carrying more than necessary.
- Sunshine does give you a nice color and a boost of vitamin D. However, if you don't have a lot of skin pigment, you should sunbathe carefully to avoid burning yourself, getting sun rash and, in the worst case scenario, skin cancer. This is where sunscreens and opaque clothing work particularly well. Another safe way is to stay in the shade when the sun burns the most, roughly between 9 am and 3 pm.
- Cool weather is between warm and cold. This means you can bring long pants and/or a longer skirt and an extra sweater. Be aware that cool days can alternate with cold nights - it may be wise to also pack a hat, gloves and a scarf.
- Light winds are probably most comfortable in hot weather but is cooling in cool and cold weather. If it is hot (when the air temperature is about 30 degrees), the wind can have a warming effect. A thin, windproof jacket and long trousers help to counteract these effects.
- High humidity means that the air conducts heat to and from the skin more easily. For example, if the air is hot (above skin temperature), it will be harder to stay cool. On the other hand, if the air is cool or cold, it is more difficult to stay warm. In high humidity, the choice of clothing makes less of a difference. However, your physical activity plays a bigger role.
FAQ
Frequently asked questions about the weather in Italy in September:
What can you do outside when it's warm in Italy?
Bathing and sunbathing can be suitable. Warm (but not hot) days are also good for activities that are not so physically demanding: sightseeing on foot, by boat, on a scooter, camel riding. You can also exercise easily as long as you make sure to cool down and quench thirst.
Is September a good time to visit Italy?
September is a really good time to go to Italy. The weather is nice so plan your packing around outdoor activities and exploring. Check other months when is a good time to visit Italy.
Monthly weather in Italy
Source of the data
For this page, we’ve looked at the typical weather in Italy, 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.