September weather forecast and climate
Catania, Italy

The Piazza Duomo in Catania, Italy
The Piazza Duomo in Catania, Italy

Weather in September

September, the first month of the autumn, in Catania, is also a moderately hot month, with average temperature varying between 27.6°C (81.7°F) and 20.3°C (68.5°F).

Temperature

In September, the average high-temperature marginally drops, from a tropical 32.1°C (89.8°F) in August, to a moderately hot 27.6°C (81.7°F). The average low-temperature,, is 20.3°C (68.5°F).

Heat index

The average heat index in September is calculated to be 29.2°C (84.6°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, clothing, pregnancy, and differences in body mass, height, and shape affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in Catania is 63%.

Rainfall

In Catania, in September, it is raining for 9.4 days, with typically 26mm (1.02") of accumulated precipitation. In Catania, Italy, during the entire year, the rain falls for 91.1 days and collects up to 275mm (10.83") of precipitation.

Snowfall

In Catania snow does not fall in February through December.

Sea temperature

In Catania, in September, the average water temperature is 25.4°C (77.7°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

The average length of the day in September is 12.4h.

Sunshine

In Catania, the average sunshine is 10.8h.

UV index

The average daily maximum UV index in Catania is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in September in Catania?

The average high-temperature, in September, is 27.6°C (81.7°F), while the average low-temperature is 20.3°C (68.5°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 29.2°C (84.6°F).

What is the average humidity in September in Catania?

The average relative humidity in September in Catania is 63%.

How many days does it rain in September in Catania?

In September, the rain falls for 9.4 days. Throughout September, 26mm (1.02") of precipitation is accumulated.

When it does not snow in Catania?

In Catania, Italy, snow does not fall in February through December.

What is the water temperature in September in Catania?

In Catania, Italy, the average seawater temperature in September is 25.4°C (77.7°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

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

In Catania, the average length of the day in September is 12.4h.

How many hours of sunshine does Catania have in September?

The average sunshine in September in Catania, Italy, is 10.8h.

How high is the UV index in September in Catania?

In Catania, Italy, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to the UV radiation.

Average temperature in September
Catania, Italy

Average temperature in September - Catania, Italy
  • Average high temperature in September: 27.6°C

The warmest month (with the highest average high temperature) is July (32.2°C).
The month with the lowest average high temperature is January (14°C).

  • Average low temperature in September: 20.3°C

The month with the highest average low temperature is August (23.5°C).
The coldest months (with the lowest average low temperature) are January and February (6.8°C).

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Average pressure in September
Catania, Italy

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

The month with the highest atmospheric pressure is December (1019.1mbar).
The month with the lowest atmospheric pressure is July (1014.1mbar).

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Average wind speed in September
Catania, Italy

Average wind speed in September - Catania, Italy
  • Average wind speed in September: 8.6km/h

The windiest month (with the highest average wind speed) is February (12.7km/h).
The calmest month (with the lowest average wind speed) is September (8.6km/h).

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Average humidity in September
Catania, Italy

Average humidity in September - Catania, Italy
  • Average humidity in September: 63%

Months with the highest relative humidity are January and November (75%).
The month with the lowest relative humidity is July (50%).

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Average rainfall in September
Catania, Italy

Average rainfall in September - Catania, Italy
  • Average rainfall in September: 26mm

The wettest month (with the highest rainfall) is October (48mm).
The driest month (with the least rainfall) is August (5mm).

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Average rainfall days in September
Catania, Italy

Average rainfall days in September - Catania, Italy
  • Average rainfall days in September: 9.4 days

The month with the highest number of rainy days is October (12.1 days).
The month with the least rainy days is July (3.5 days).

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Average snowfall in September
Catania, Italy

Average snowfall in September - Catania, Italy
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (1mm).
Months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days in September
Catania, Italy

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

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

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Average sea temperature in September
Catania, Italy

Average sea temperature in September - Catania, Italy
  • Average sea temperature in September: 25.4°C

The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (14.6°C).

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

Average daylight in September / Average sunshine in September - Catania, Italy
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in September: 10.8h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
The month with the least sunshine is January (Average sunshine: 6.6h).

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Average sunshine days in September
Catania, Italy

Average sunshine days in September - Catania, Italy
  • Average sunshine days in September: 17.7 days

The month with the most sunshine days is July (26.9 days).
The month with the least sunshine days is October (15.6 days).

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Average UV index in September
Catania, Italy

Average UV index in September - Catania, Italy
  • Average UV index in September: 6

Months with the highest UV index are June, July and August (UV index 7).
Months with the lowest UV index are February and December (UV index 3).

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Average cloud cover in September
Catania, Italy

Average cloud cover in September - Catania, Italy
  • Average cloud cover in September: 17

The month with the most cloud cover is January (Cloud cover 27).
Months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in September
Catania, Italy

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

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

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