September weather forecast and climate
Genoa, Italy

Weather in September

September, the first month of the autumn, in Genoa, is also a moderately hot month, with average temperature varying between 17.9°C (64.2°F) and 24.4°C (75.9°F).

Temperature

In Genoa, Italy, the average high-temperature in September marginally drops, from 27.7°C (81.9°F) in August, to a still moderately hot 24.4°C (75.9°F). The average low-temperature,, is 17.9°C (64.2°F).

Rainfall

In Genoa, during September, the rain falls for 6 days and regularly aggregates up to 136.4mm (5.37") of precipitation. Throughout the year, in Genoa, there are 75.7 rainfall days, and 1079.2mm (42.49") of precipitation is accumulated.

Sea temperature

In Genoa, Italy,, the average water temperature is 23°C (73.4°F).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23°C (73.4°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)

Daylight

The average length of the day in September is 12.5h.

Sunshine

The average sunshine in Genoa is 6.7h.

UV index

In Genoa, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

How much does it rain in Genoa in September?

In Genoa, Italy, in September, it is raining for 6 days, with typically 136.4mm (5.37") of accumulated precipitation.

What is the sea temperature in September in Genoa?

In September, the average sea temperature in Genoa, Italy, is 23°C (73.4°F). For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 23°C (73.4°F).

What is the average length of the day in September in Genoa?

The average length of the day in September in Genoa is 12.5h.

How many hours of sunshine does Genoa have in September?

In September, the average sunshine in Genoa, Italy, is 6.7h.

What is the UV index intensity in September in Genoa?

The average daily maximum UV index in September in Genoa, Italy, is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Genoa, Italy

Average temperature in September - Genoa, Italy
  • Average high temperature in September: 24.4°C

The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (11.5°C).

  • Average low temperature in September: 17.9°C

The month with the highest average low temperature is August (21°C).
The coldest month (with the lowest average low temperature) is January (5.5°C).

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Average rainfall in September
Genoa, Italy

Average rainfall in September - Genoa, Italy
  • Average rainfall in September: 136.4mm

The wettest month (with the highest rainfall) is October (171.3mm).
The driest month (with the least rainfall) is July (24.2mm).

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Average rainfall days in September
Genoa, Italy

Average rainfall days in September - Genoa, Italy
  • Average rainfall days in September: 6 days

The month with the highest number of rainy days is April (8.1 days).
The month with the least rainy days is July (2.8 days).

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Average sea temperature in September
Genoa, Italy

Average sea temperature in September - Genoa, Italy
  • Average sea temperature in September: 23°C

The best month for swimming (with the highest average sea temperature) is August (24.3°C).
The coldest month (with the lowest average sea temperature) is February (13.2°C).

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Average daylight in September /
Average sunshine in September
Genoa, Italy

Average daylight in September / Average sunshine in September - Genoa, Italy
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in September: 6.7h

The month with the most sunshine is July (Average sunshine: 9.5h).
The month with the least sunshine is December (Average sunshine: 3.6h).

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Average UV index in September
Genoa, Italy

Average UV index in September - Genoa, Italy
  • Average UV index in September: 5

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).

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