September weather forecast
Gaeta, Italy

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Weather in September

September, the first month of the autumn in Gaeta, is still a warm month, with an average temperature ranging between min 18.8°C (65.8°F) and max 24.9°C (76.8°F).

Temperature

The onset of September is marked by a minor decrease in temperature, transitioning from a warm 28.7°C (83.7°F) in August to a still moderately hot 24.9°C (76.8°F). Gaeta experiences a steady low-temperature of 18.8°C (65.8°F) throughout September.

Humidity

The average relative humidity in September in Gaeta is 67%.

Rainfall

In September, in Gaeta, the rain falls for 11.5 days. Throughout September, 48mm (1.89") of precipitation is accumulated. In Gaeta, Italy, during the entire year, the rain falls for 135.6 days and collects up to 569mm (22.4") of precipitation.

Snowfall

March through December are months without snowfall in Gaeta, Italy.

Sea temperature

In September, the average sea temperature in Gaeta is 24.6°C (76.3°F).
Note: People sensitive to cold might find swimming in 24.6°C (76.3°F) challenging. However, conditions like sunshine, wind, and ambient temperature play a significant role in the overall comfort. Wetsuits, while optional, might be beneficial.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of September in Gaeta, sunrise is at 06:32 and sunset at 19:38. On the last day of the month, sunrise is at 07:01 and sunset at 18:49 CEST.

Sunshine

In Gaeta, the average sunshine in September is 10.9h.

UV index

In Gaeta, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. When the Sun is at its strongest around midday, find shade and limit exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Warning! The reflection of sand and water increases the UV dose.
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Frequently asked questions

What is the usual temperature for Gaeta in September?

The average high-temperature, in September, in Gaeta, is 24.9°C (76.8°F), while the average low-temperature is 18.8°C (65.8°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 31°C (87.8°F).

What is the average humidity in September in Gaeta?

In September, the average relative humidity in Gaeta, Italy, is 67%.

How many days does it rain in September in Gaeta?

In Gaeta, Italy, in September, during 11.5 rainfall days, 48mm (1.89") of precipitation is typically accumulated.

When it does not snow in Gaeta?

March through December are months without snowfall in Gaeta.

What is the sea temperature in September in Gaeta?

In Gaeta, the average seawater temperature in September is 24.6°C (76.3°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24.6°C (76.3°F) water.

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

The average day length in September is 12h and 28min.

When are sunrise and sunset in September in Gaeta?

On the first day of September, sunrise is at 06:32 and sunset at 19:38. On the last day of the month, sunrise is at 07:01 and sunset at 18:49 CEST.

How many hours of sunshine does Gaeta have in September?

In Gaeta, the average sunshine duration in September is 10.9h.

What is the UV index intensity in September in Gaeta?

The average daily maximum UV index in September in Gaeta, Italy, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Gaeta, Italy

Average temperature in September - Gaeta, Italy
  • Average high temperature in September: 24.9°C

The warmest month (with the highest average high temperature) is August (28.7°C).
The month with the lowest average high temperature is January (11.6°C).

  • Average low temperature in September: 18.8°C

The month with the highest average low temperature is August (21.6°C).
The coldest month (with the lowest average low temperature) is February (7°C).

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Average pressure in September
Gaeta, Italy

Average pressure in September - Gaeta, Italy
  • Average pressure in September: 1015.7mbar

The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is April (1014.1mbar).

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Average wind speed in September
Gaeta, Italy

Average wind speed in September - Gaeta, Italy
  • Average wind speed in September: 9.9km/h

The windiest month (with the highest average wind speed) is February (13km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).

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Average humidity in September
Gaeta, Italy

Average humidity in September - Gaeta, Italy
  • Average humidity in September: 67%

The months with the highest relative humidity are January and November (75%).
The month with the lowest relative humidity is August (63%).

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Average rainfall in September
Gaeta, Italy

Average rainfall in September - Gaeta, Italy
  • Average rainfall in September: 48mm

The wettest month (with the highest rainfall) is November (120mm).
The driest month (with the least rainfall) is August (10mm).

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Average rainfall days in September
Gaeta, Italy

Average rainfall days in September - Gaeta, Italy
  • Average rainfall days in September: 11.5 days

The months with the highest number of rainy days are January and November (15 days).
The month with the least rainy days is August (4.2 days).

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Average snowfall days in September
Gaeta, Italy

Average snowfall days in September - Gaeta, Italy
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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Average sea temperature in September
Gaeta, Italy

Average sea temperature in September - Gaeta, Italy
  • Average sea temperature in September: 24.6°C

The best month for swimming (with the highest average sea temperature) is August (25.8°C).
The coldest month (with the lowest average sea temperature) is February (13.8°C).

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

Average daylight in September / Average sunshine in September - Gaeta, Italy
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 10h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).

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Average sunshine days in September
Gaeta, Italy

Average sunshine days in September - Gaeta, Italy
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is August (24.2 days).
The month with the least sunshine days is February (12.3 days).

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Average UV index in September
Gaeta, Italy

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

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Average cloud cover in September
Gaeta, Italy

Average cloud cover in September - Gaeta, Italy
  • Average cloud cover in September: 19

The month with the most cloud cover is January (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 9).

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Average visibility in September
Gaeta, Italy

Average visibility in September - Gaeta, Italy
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Gaeta, Italy

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