Weather in Genoa in September 2025
Average weather
Average temperature in Genoa in September
The temperature in September is +27°C on average, with a range between a maximum of +31°C during the day and a minimum of +14°C at night.
The average maximum temperature goes up 6% by the end of the month, compared with the beginning of the month, from +25°C to +26°C.
Is Genoa warm or cold in September?
Genoa is typically warm in September.
Maximum temperatures go down compared to the previous month from +27°C to +24°C. The minimum temperature also goes down from +22°C to +19°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is one of the warmest months in Genoa, here is the comparison with other months:
Water temperature in Genoa in September
Water in Genoa in September is Comfortable. It varies from +21°C to +25°C, with an average of +23°C. This is almost similar to the air temperature, which averages +24°C.
The water temperature in September is one of the warmest of the entire year:
Can you swim in Genoa in September?
Climate in Genoa in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +27°C | +24°C | +20°C | ||||
| Min. temperature | ||||||
| +14°C | +10°C | +5°C | ||||
| Max. temperature | ||||||
| +36°C | +33°C | +27°C | ||||
| Rainfall | ||||||
| 58 mm | 110 mm | 179 mm | ||||
| Wind | ||||||
| 2 m/s | 3 m/s | 4 m/s | ||||
| Avg. water temperature | ||||||
| +24°C | +23°C | +20°C | ||||
| Humidity | ||||||
| 70% | 69% | 71% | ||||
| Air pressure | ||||||
| 1014 HPa | 1015 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 15 | 13 | 10 | ||||
| Cloudy days | ||||||
| 4 | 4 | 5 | ||||
| Rainy days | ||||||
| 7 | 8 | 13 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as good as in August. It’s getting colder in September. From +27°C in the day, the average maximum temperature lowers to +24°C. Prepare for more rain. Average rainfall goes from 58 mm to 110 mm. It feels drier, as humidity decreases from 70% to 69%. Winds are stronger in comparison to August, going up from 2 m/s to 3 m/s on average. The days becoming less sunny, going from 15 sunny days in August to 13 in September.
October brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Genoa is gradually decreasing during September, going from 3 m/s to 1 m/s over the course of the month.
Rain
How was the weather last September in Genoa?
Climate Change over Years
The climate in Genoa in September has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+17°C) and the highest in 2022 (+20°C). The driest year was 2007 with only 644 mm of rainfall, and the wettest year was 2019 with 3379 mm.
FAQ
Is September a good time to visit Genoa?
Can you sunbathe in Genoa in September?
Can you swim in Genoa in September?
Is Genoa rainy in September?
Is it sunny in Genoa in September?
Other cities in Italy
Monthly weather in Genoa
Source of the data
For this page, we’ve looked at the typical weather in Genoa, 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.