Genoa weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Excellent
Best time to visit: May – September
What is the weather like in Genoa in September?
In September, Genoa is warm: daytime highs average 23 °C, and nights cool down to about 18 °C. The sea averages 23.3 °C – pleasant for swimming. The sun shines for around 7 hours a day. Rain is frequent, with about 9 rainy days and 76 mm in total. All in all, September is an excellent month for a holiday in Genoa.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 89 | 82 | 73 |
| Day | 27° | 23° | 19° |
| Night | 22° | 18° | 15° |
| Sea | 25° | 23° | 21° |
| Sun | 9 h | 7 h | 5 h |
| Rain days | 8 | 9 | 10 |
More details for September
- Daylight
- 12 h 36 min07:02 – 19:37
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 3 daysdew point 18 °C or moreAll months
- Wind
- 11 km/haverage daily peakAll months
- Cloud cover
- 46 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Rome
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %65 %
- Few rainy daysweight 30 %64 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Swimwear
- Sunscreen
- Rain jacket or umbrella
Genoa in September: quick answers
Is Genoa hot in September?
Warm rather than hot: in September, daytime highs in Genoa average 23 °C and nights cool to about 18 °C.
Can you swim in Genoa in September?
Yes. In September the sea averages 23.3 °C – pleasant for swimming.
Does it rain much in Genoa in September?
Rain is frequent, with about 9 rainy days and 76 mm in total.
Genoa month by month
The whole year in GenoaAll destinations: ItalyWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences