Bonassola Weather in September
What's the weather like in Bonassola (Liguria) in September 2025?
The climate in Bonassola during September can be summarized as mild and a little damp.
September is in the fall / autumn in Bonassola and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 14°C (58°F) is normal.
| Daytime temperature | 21.7°C 71°F |
|---|---|
| Nightly temperature | 14.2°C 57.5°F |
| Average temperature | 17.9°C 64.2°F |
| Daily sunshine | 7.4 hrs |
| Avg rainfall | 88 mm 3.4 ins |
| Rainy days | 9 days |
| Sea temperature | 22.6°C 72.7°F |
| Humidity | 76% |
| Windspeed | 7.9kph 5 mph |
On average September is the 4th wettest month of the year in Bonassola with around 88mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.4 hours of sunshine per day.
September temperatures in Bonassola
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Bonassola in September 2025.
Other monthly averages
Best places to visit in September
Bonassola weather stats
| Hottest month: | July | 25°C 77°F |
|---|---|---|
| Driest month: | July | 32mm 1.3ins |
| Sunniest month: | July | 10.1hrs |
| Coldest month: | January | 7°C 44.6°F |
| Wettest month: | November | 130mm 5.1ins |
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